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  <div class="section" id="base">
<h1>Base<a class="headerlink" href="#base" title="Permalink to this headline">¶</a></h1>
<div class="section" id="layer">
<h2>Layer<a class="headerlink" href="#layer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle5LayerE">
<span id="paddle::Layer"></span><span class="target" id="paddleclasspaddle_1_1Layer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">Layer</code><a class="headerlink" href="#_CPPv2N6paddle5LayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>Base class for layer. Define necessary variables and functions for every layer. </p>
81
<p>Subclassed by <a class="reference internal" href="#paddleclasspaddle_1_1AddtoLayer"><span class="std std-ref">paddle::AddtoLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1AgentLayer"><span class="std std-ref">paddle::AgentLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1BatchNormBaseLayer"><span class="std std-ref">paddle::BatchNormBaseLayer</span></a>, paddle::BilinearInterpLayer, <a class="reference internal" href="#paddleclasspaddle_1_1BlockExpandLayer"><span class="std std-ref">paddle::BlockExpandLayer</span></a>, paddle::BootBiasLayer, <a class="reference internal" href="#paddleclasspaddle_1_1ConcatenateLayer"><span class="std std-ref">paddle::ConcatenateLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1ConcatenateLayer2"><span class="std std-ref">paddle::ConcatenateLayer2</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1ConvBaseLayer"><span class="std std-ref">paddle::ConvBaseLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1ConvexCombinationLayer"><span class="std std-ref">paddle::ConvexCombinationLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1ConvShiftLayer"><span class="std std-ref">paddle::ConvShiftLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1CosSimLayer"><span class="std std-ref">paddle::CosSimLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1CosSimVecMatLayer"><span class="std std-ref">paddle::CosSimVecMatLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1CostLayer"><span class="std std-ref">paddle::CostLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1CRFLayer"><span class="std std-ref">paddle::CRFLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1CTCLayer"><span class="std std-ref">paddle::CTCLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1DataLayer"><span class="std std-ref">paddle::DataLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1DataNormLayer"><span class="std std-ref">paddle::DataNormLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1EosIdCheckLayer"><span class="std std-ref">paddle::EosIdCheckLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1ExpandLayer"><span class="std std-ref">paddle::ExpandLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1FeatureMapExpandLayer"><span class="std std-ref">paddle::FeatureMapExpandLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1FullyConnectedLayer"><span class="std std-ref">paddle::FullyConnectedLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1GatedRecurrentLayer"><span class="std std-ref">paddle::GatedRecurrentLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1GatherAgentLayer"><span class="std std-ref">paddle::GatherAgentLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1GetOutputLayer"><span class="std std-ref">paddle::GetOutputLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1GruStepLayer"><span class="std std-ref">paddle::GruStepLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1HierarchicalSigmoidLayer"><span class="std std-ref">paddle::HierarchicalSigmoidLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1InterpolationLayer"><span class="std std-ref">paddle::InterpolationLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1LambdaCost"><span class="std std-ref">paddle::LambdaCost</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1LstmLayer"><span class="std std-ref">paddle::LstmLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1LstmStepLayer"><span class="std std-ref">paddle::LstmStepLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1MaxIdLayer"><span class="std std-ref">paddle::MaxIdLayer</span></a>, paddle::MaxOutLayer, <a class="reference internal" href="#paddleclasspaddle_1_1MixedLayer"><span class="std std-ref">paddle::MixedLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1MultiplexLayer"><span class="std std-ref">paddle::MultiplexLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1NCELayer"><span class="std std-ref">paddle::NCELayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1NormLayer"><span class="std std-ref">paddle::NormLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1OuterProdLayer"><span class="std std-ref">paddle::OuterProdLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1ParameterReluLayer"><span class="std std-ref">paddle::ParameterReluLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1PoolLayer"><span class="std std-ref">paddle::PoolLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1PowerLayer"><span class="std std-ref">paddle::PowerLayer</span></a>, paddle::PrintLayer, <a class="reference internal" href="#paddleclasspaddle_1_1RankingCost"><span class="std std-ref">paddle::RankingCost</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1RecurrentLayer"><span class="std std-ref">paddle::RecurrentLayer</span></a>, paddle::RecurrentLayerGroup, <a class="reference internal" href="#paddleclasspaddle_1_1ResizeLayer"><span class="std std-ref">paddle::ResizeLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1SamplingIdLayer"><span class="std std-ref">paddle::SamplingIdLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1ScalingLayer"><span class="std std-ref">paddle::ScalingLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1ScatterAgentLayer"><span class="std std-ref">paddle::ScatterAgentLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1SelectiveFullyConnectedLayer"><span class="std std-ref">paddle::SelectiveFullyConnectedLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1SequenceConcatLayer"><span class="std std-ref">paddle::SequenceConcatLayer</span></a>, paddle::SequencePoolLayer, <a class="reference internal" href="#paddleclasspaddle_1_1SequenceReshapeLayer"><span class="std std-ref">paddle::SequenceReshapeLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1SlopeInterceptLayer"><span class="std std-ref">paddle::SlopeInterceptLayer</span></a>, paddle::SpatialPyramidPoolLayer, <a class="reference internal" href="#paddleclasspaddle_1_1SubSequenceLayer"><span class="std std-ref">paddle::SubSequenceLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1SumCostLayer"><span class="std std-ref">paddle::SumCostLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1SumToOneNormLayer"><span class="std std-ref">paddle::SumToOneNormLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1TensorLayer"><span class="std std-ref">paddle::TensorLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1TransLayer"><span class="std std-ref">paddle::TransLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1ValidationLayer"><span class="std std-ref">paddle::ValidationLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle5Layer14waitInputValueEv">
86
<span id="paddle::Layer::waitInputValue"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a91a73939067203aee3787a0cf634240a"></span>void <code class="descname">waitInputValue</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer14waitInputValueEv" title="Permalink to this definition">¶</a></dt>
87
<dd><p>Wait until all input value ready. Called before <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer23copyOutputToOtherDeviceEv">
92
<span id="paddle::Layer::copyOutputToOtherDevice"></span><span class="target" id="paddleclasspaddle_1_1Layer_1ab5232ce7ef7bfd4baca02a90b71e3f43"></span>void <code class="descname">copyOutputToOtherDevice</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer23copyOutputToOtherDeviceEv" title="Permalink to this definition">¶</a></dt>
93
<dd><p>Copy layer&#8217;s output_ to other device. If output layer is in other device, called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer22waitAndMergeOutputGradEv">
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<span id="paddle::Layer::waitAndMergeOutputGrad"></span><span class="target" id="paddleclasspaddle_1_1Layer_1aeee80bb7aaefd1701f273919eba5dd9a"></span>void <code class="descname">waitAndMergeOutputGrad</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer22waitAndMergeOutputGradEv" title="Permalink to this definition">¶</a></dt>
99
<dd><p>Wait until all output grad ready and merge them to output_.grad. Called before <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a51bf2c7819a05925349a65f01868e15f"><span class="std std-ref">Layer::backward()</span></a> function. </p>
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</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer16markAllInputGradEv">
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<span id="paddle::Layer::markAllInputGrad"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a8ff04056b44d1596e6be2c7a4a0d3c5c"></span>void <code class="descname">markAllInputGrad</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer16markAllInputGradEv" title="Permalink to this definition">¶</a></dt>
105
<dd><p>Notify previous layer the output grad ready. Called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a51bf2c7819a05925349a65f01868e15f"><span class="std std-ref">Layer::backward()</span></a> function. </p>
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</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer5LayerERK11LayerConfigb">
<span id="paddle::Layer::Layer__LayerConfigCR.b"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a6a298bfbba507e60af1e147ccecbb39c"></span><code class="descname">Layer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em>, bool <em>useGpu</em> = FLAGS_use_gpu<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer5LayerERK11LayerConfigb" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5LayerD0Ev">
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<span id="paddle::Layer::~Layer"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a133decb329423dc7e9d1a3562371aa14"></span><em class="property">virtual</em> <code class="descname">~Layer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5LayerD0Ev" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
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<dt id="_CPPv2NK6paddle5Layer12needGradientEv">
<span id="paddle::Layer::needGradientC"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a19661e9e28e3cf338c7c239cfbb024b2"></span>bool <code class="descname">needGradient</code><span class="sig-paren">(</span><span class="sig-paren">)</span> <em class="property">const</em><a class="headerlink" href="#_CPPv2NK6paddle5Layer12needGradientEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>Get the flag whether layer need to compute gradient. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer15setNeedGradientEb">
<span id="paddle::Layer::setNeedGradient__b"></span><span class="target" id="paddleclasspaddle_1_1Layer_1aa2dab8596036b708d9c9ec78bab4530e"></span>void <code class="descname">setNeedGradient</code><span class="sig-paren">(</span>bool <em>need</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer15setNeedGradientEb" title="Permalink to this definition">¶</a></dt>
<dd><p>Set the flag whether layer need to compute gradient. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer19setNeedSequenceInfoEb">
<span id="paddle::Layer::setNeedSequenceInfo__b"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a47df0761caf8164187bf8bf6d9d74d5f"></span>void <code class="descname">setNeedSequenceInfo</code><span class="sig-paren">(</span>bool <em>need</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer19setNeedSequenceInfoEb" title="Permalink to this definition">¶</a></dt>
<dd><p>Set the flag whether layer need to re-compute sequence information, which includes sequenceStartPositions or subSequenceStartPositions. </p>
</dd></dl>

<dl class="function">
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<dt id="_CPPv2NK6paddle5Layer7getNameEv">
<span id="paddle::Layer::getNameC"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a8b46d31fbd7549627a47ee4d551308b0"></span><em class="property">const</em> std::string &amp;<code class="descname">getName</code><span class="sig-paren">(</span><span class="sig-paren">)</span> <em class="property">const</em><a class="headerlink" href="#_CPPv2NK6paddle5Layer7getNameEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>Get layer&#8217;s name. </p>
</dd></dl>

<dl class="function">
143 144
<dt id="_CPPv2NK6paddle5Layer7getTypeEv">
<span id="paddle::Layer::getTypeC"></span><span class="target" id="paddleclasspaddle_1_1Layer_1ad859c5ce59f913ed0a06067c07da4f9a"></span><em class="property">const</em> std::string &amp;<code class="descname">getType</code><span class="sig-paren">(</span><span class="sig-paren">)</span> <em class="property">const</em><a class="headerlink" href="#_CPPv2NK6paddle5Layer7getTypeEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>Get layer&#8217;s type. </p>
</dd></dl>

<dl class="function">
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<dt id="_CPPv2NK6paddle5Layer7getSizeEv">
<span id="paddle::Layer::getSizeC"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a8b12bac2760d062f2b7a1f076f26acdb"></span>size_t <code class="descname">getSize</code><span class="sig-paren">(</span><span class="sig-paren">)</span> <em class="property">const</em><a class="headerlink" href="#_CPPv2NK6paddle5Layer7getSizeEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>Get layer&#8217;s size. </p>
</dd></dl>

<dl class="function">
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<dt id="_CPPv2NK6paddle5Layer11getDeviceIdEv">
<span id="paddle::Layer::getDeviceIdC"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a97a3ad4829025e36e7f1e8bc0d0c26f4"></span>int <code class="descname">getDeviceId</code><span class="sig-paren">(</span><span class="sig-paren">)</span> <em class="property">const</em><a class="headerlink" href="#_CPPv2NK6paddle5Layer11getDeviceIdEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>Get layer&#8217;s deviceId. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer7addPrevE8LayerPtr">
<span id="paddle::Layer::addPrev__LayerPtr"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a3312a52772507e92a73a3a27cd5b076a"></span>void <code class="descname">addPrev</code><span class="sig-paren">(</span>LayerPtr <em>l</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer7addPrevE8LayerPtr" title="Permalink to this definition">¶</a></dt>
<dd><p>Add the inputLayer. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer7getPrevE6size_t">
<span id="paddle::Layer::getPrev__s"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a48e3ff478d7d7b15657852de324491e8"></span><em class="property">const</em> LayerPtr &amp;<code class="descname">getPrev</code><span class="sig-paren">(</span>size_t <em>i</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer7getPrevE6size_t" title="Permalink to this definition">¶</a></dt>
<dd><p>Get the size of inputLayer[i]. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer14getOutputValueEv">
<span id="paddle::Layer::getOutputValue"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a95c9d244c48aefd2db163b82551d83d9"></span><em class="property">const</em> <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> &amp;<code class="descname">getOutputValue</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer14getOutputValueEv" title="Permalink to this definition">¶</a></dt>
<dd><p>Get the forward-output value. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer14getOutputLabelEv">
<span id="paddle::Layer::getOutputLabel"></span><span class="target" id="paddleclasspaddle_1_1Layer_1aea1e4836ca96e47bb164970eb4788a2e"></span><em class="property">const</em> <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle10IVectorPtrE" title="paddle::IVectorPtr">IVectorPtr</a> &amp;<code class="descname">getOutputLabel</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer14getOutputLabelEv" title="Permalink to this definition">¶</a></dt>
<dd><p>Get the forward-output label. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer13getOutputGradEv">
<span id="paddle::Layer::getOutputGrad"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a1ec682608fd977401de453896b74579f"></span><em class="property">const</em> <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> &amp;<code class="descname">getOutputGrad</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer13getOutputGradEv" title="Permalink to this definition">¶</a></dt>
<dd><p>Get the backward-Loss value. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer9setOutputERKNSt6stringEP8Argument">
<span id="paddle::Layer::setOutput__ssCR.ArgumentP"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a8c80649b5009b66eb6dce90e53a92c94"></span>void <code class="descname">setOutput</code><span class="sig-paren">(</span><em class="property">const</em> std::string &amp;<em>name</em>, <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> *<em>output</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer9setOutputERKNSt6stringEP8Argument" title="Permalink to this definition">¶</a></dt>
<dd><p>If layer has multi-output, set output into outputMap_. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer9getOutputERKNSt6stringE">
<span id="paddle::Layer::getOutput__ssCR"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a65d3a4089f522a117ae9d01938b7cbed"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<code class="descname">getOutput</code><span class="sig-paren">(</span><em class="property">const</em> std::string &amp;<em>str</em> = &quot;&quot;<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer9getOutputERKNSt6stringE" title="Permalink to this definition">¶</a></dt>
<dd><p>Get the output based on layer&#8217;s name. </p>
</dd></dl>

<dl class="function">
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<dt id="_CPPv2NK6paddle5Layer9getOutputEi">
<span id="paddle::Layer::getOutput__iC"></span><span class="target" id="paddleclasspaddle_1_1Layer_1ab42874fb82be657320b741da6050eb27"></span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<code class="descname">getOutput</code><span class="sig-paren">(</span>int <em>deviceId</em><span class="sig-paren">)</span> <em class="property">const</em><a class="headerlink" href="#_CPPv2NK6paddle5Layer9getOutputEi" title="Permalink to this definition">¶</a></dt>
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<dd><p>Get the output based on deviceId. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer13getParametersEv">
<span id="paddle::Layer::getParameters"></span><span class="target" id="paddleclasspaddle_1_1Layer_1aafa6970a859e549e14c50a403da88a3a"></span><em class="property">const</em> std::vector&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterPtrE" title="paddle::ParameterPtr">ParameterPtr</a>&gt; &amp;<code class="descname">getParameters</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer13getParametersEv" title="Permalink to this definition">¶</a></dt>
<dd><p>Get layer&#8217;s parameters. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer16getBiasParameterEv">
<span id="paddle::Layer::getBiasParameter"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a1d78c8155c9234ff94fb8ce5ad46469e"></span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterPtrE" title="paddle::ParameterPtr">ParameterPtr</a> &amp;<code class="descname">getBiasParameter</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer16getBiasParameterEv" title="Permalink to this definition">¶</a></dt>
<dd><p>Get layer&#8217;s bias-parameters. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer12resizeOutputE6size_t6size_t">
<span id="paddle::Layer::resizeOutput__s.s"></span><span class="target" id="paddleclasspaddle_1_1Layer_1af9c609c8d8ecc5144f1b3fdfcf280f0b"></span>void <code class="descname">resizeOutput</code><span class="sig-paren">(</span>size_t <em>height</em>, size_t <em>width</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer12resizeOutputE6size_t6size_t" title="Permalink to this definition">¶</a></dt>
<dd><p>Resize the output matrix size. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer13reserveOutputE6size_t6size_t">
<span id="paddle::Layer::reserveOutput__s.s"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a8ddb80774cd6431697be97b9cfb1999c"></span>void <code class="descname">reserveOutput</code><span class="sig-paren">(</span>size_t <em>height</em>, size_t <em>width</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer13reserveOutputE6size_t6size_t" title="Permalink to this definition">¶</a></dt>
<dd><p>Resize the output matrix size, and reset value to zero. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer11resetOutputE6size_t6size_t">
<span id="paddle::Layer::resetOutput__s.s"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a350b11916f118b1d5a8a01663c699cb6"></span>void <code class="descname">resetOutput</code><span class="sig-paren">(</span>size_t <em>height</em>, size_t <em>width</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer11resetOutputE6size_t6size_t" title="Permalink to this definition">¶</a></dt>
<dd><p>Resize the output matrix size, and reset value and grad to zero. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer8zeroGradEv">
<span id="paddle::Layer::zeroGrad"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a327284501ae27aa499045291171e6003"></span>void <code class="descname">zeroGrad</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer8zeroGradEv" title="Permalink to this definition">¶</a></dt>
<dd><p>Clear the gradient of output. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::Layer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a18c89afb67652868604e87b53a72df94"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer14initSubNetworkEP13NeuralNetworkRK11ModelConfigRKNSt6vectorI13ParameterTypeEEb">
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<span id="paddle::Layer::initSubNetwork__NeuralNetworkP.ModelConfigCR.std::vector:ParameterType:CR.b"></span><span class="target" id="paddleclasspaddle_1_1Layer_1aa28cdc78c4ae7bdc41d20e5d96fec9f1"></span><em class="property">virtual</em> void <code class="descname">initSubNetwork</code><span class="sig-paren">(</span><a class="reference internal" href="../gradientmachines/gradientmachines.html#_CPPv2N6paddle13NeuralNetworkE" title="paddle::NeuralNetwork">NeuralNetwork</a> *<em>rootNetwork</em>, <em class="property">const</em> <a class="reference internal" href="../../api/api.html#_CPPv211ModelConfig" title="ModelConfig">ModelConfig</a> &amp;<em>config</em>, <em class="property">const</em> std::vector&lt;ParameterType&gt; &amp;<em>parameterTypes</em>, bool <em>useGpu</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer14initSubNetworkEP13NeuralNetworkRK11ModelConfigRKNSt6vectorI13ParameterTypeEEb" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization for sub network if there has sub network. <dl class="docutils">
<dt><strong>Parameters</strong></dt>
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<dd><ul class="breatheparameterlist first last simple">
<li><code class="docutils literal"><span class="pre">rootNetwork</span></code>: root network </li>
<li><code class="docutils literal"><span class="pre">config</span></code>: model config </li>
<li><code class="docutils literal"><span class="pre">parameterTypes</span></code>: parameter&#8217;s type </li>
<li><code class="docutils literal"><span class="pre">useGpu</span></code>: whether to use gpu or not </li>
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</ul>
</dd>
</dl>
</p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer16accessSubNetworkERKNSt8functionIFvR13NeuralNetworkEEE">
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<span class="target" id="paddleclasspaddle_1_1Layer_1a80e1752698b61409984b7f789aec1c44"></span><em class="property">virtual</em> void <code class="descname">accessSubNetwork</code><span class="sig-paren">(</span><em class="property">const</em> std::function&lt;void<span class="sig-paren">(</span><a class="reference internal" href="../gradientmachines/gradientmachines.html#_CPPv2N6paddle13NeuralNetworkE" title="paddle::NeuralNetwork">NeuralNetwork</a>&amp;<span class="sig-paren">)</span>&gt; &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer16accessSubNetworkERKNSt8functionIFvR13NeuralNetworkEEE" title="Permalink to this definition">¶</a></dt>
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<dd><p>Access SubNetwork Object. If subnetwork exists, then invoke callback with subnetwrk. </p>
<p><dl class="docutils">
<dt><strong>Parameters</strong></dt>
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<dd><ul class="breatheparameterlist first last simple">
<li><code class="docutils literal"><span class="pre">callback</span></code>: if sub-network is exist, the callback is invoked. </li>
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</ul>
</dd>
</dl>
</p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer8prefetchEv">
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<span id="paddle::Layer::prefetch"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a485106c46ee55c9bc8ce67460738d99a"></span><em class="property">virtual</em> void <code class="descname">prefetch</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer8prefetchEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>If use sparse row matrix as parameter, prefetch feature ids in input label. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer7forwardE8PassType">
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<span id="paddle::Layer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"></span><em class="property">virtual</em> void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer10resetStateEv">
294
<span id="paddle::Layer::resetState"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a7e3f24861a6bdd6ede74d3d1ee96af5b"></span><em class="property">virtual</em> void <code class="descname">resetState</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer10resetStateEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>Reset the internal state variables. Allocate them if they have not been allocated. This function need to called before <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> for generating sequence.</p>
<p>This is used for sequence generation. When generating sequence, the calculation at current timestamp depends on the state from previous timestamp. The model needs to keep the information about the previous timestamp in the state variables. Layers such as <a class="reference internal" href="#paddleclasspaddle_1_1RecurrentLayer"><span class="std std-ref">RecurrentLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1LstmLayer"><span class="std std-ref">LstmLayer</span></a> and ContextLayer have state variables. </p>
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</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer8setStateE13LayerStatePtr">
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<span id="paddle::Layer::setState__LayerStatePtr"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a5c8853a23011c7f78248946af05b61fa"></span><em class="property">virtual</em> void <code class="descname">setState</code><span class="sig-paren">(</span>LayerStatePtr <em>state</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer8setStateE13LayerStatePtr" title="Permalink to this definition">¶</a></dt>
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<dd><p>Set layer state. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer8getStateEv">
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<span id="paddle::Layer::getState"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a167ca853f91da5189f71de12c3dfaa81"></span><em class="property">virtual</em> LayerStatePtr <code class="descname">getState</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer8getStateEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>Get layer state. <dl class="docutils">
<dt><strong>Return</strong></dt>
<dd>A copy of internal state. </dd>
</dl>
</p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer15showOutputStatsEv">
<span id="paddle::Layer::showOutputStats"></span><span class="target" id="paddleclasspaddle_1_1Layer_1ae04dc22691d3899b41d6f72a407e376a"></span>void <code class="descname">showOutputStats</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer15showOutputStatsEv" title="Permalink to this definition">¶</a></dt>
<dd><p>Show output state. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer8backwardERK14UpdateCallback">
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<span id="paddle::Layer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a51bf2c7819a05925349a65f01868e15f"></span><em class="property">virtual</em> void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span> = 0<a class="headerlink" href="#_CPPv2N6paddle5Layer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
324
<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer9onPassEndEv">
329
<span id="paddle::Layer::onPassEnd"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a69d55d94f5aa536669b8d6ebc95487c2"></span><em class="property">virtual</em> void <code class="descname">onPassEnd</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer9onPassEndEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>One pass is finished. </p>
</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Static Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle5Layer6createERK11LayerConfig">
<span id="paddle::Layer::create__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1Layer_1aaf45a53c76df051b409fd8c9cb6d6915"></span>LayerPtr <code class="descname">create</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer6createERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd><p>Create pointer of layer. </p>
</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Static Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle5Layer10registrar_E">
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<span id="paddle::Layer::registrar___ClassRegistrar:Layer.LayerConfig:"></span><span class="target" id="paddleclasspaddle_1_1Layer_1ac1be67e555935b8c4c54b9a847987f0b"></span>ClassRegistrar&lt;<a class="reference internal" href="#_CPPv2N6paddle5LayerE" title="paddle::Layer">Layer</a>, LayerConfig&gt; <code class="descname">registrar_</code><a class="headerlink" href="#_CPPv2N6paddle5Layer10registrar_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Register a <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">Layer</span></a>. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle5Layer13markInputGradEi">
<span id="paddle::Layer::markInputGrad__i"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a9416581ce1f5609bd9fa078284131a0c"></span>void <code class="descname">markInputGrad</code><span class="sig-paren">(</span>int <em>inputIndex</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer13markInputGradEi" title="Permalink to this definition">¶</a></dt>
<dd><p>Notify specified layer the output grad ready. Called in the backward function. If do mark input grad in the backward function, you should to ensure that all input grad will be marked in the backward function. </p>
</dd></dl>

<dl class="function">
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<dt id="_CPPv2NK6paddle5Layer8getInputE6size_t">
<span id="paddle::Layer::getInput__sC"></span><span class="target" id="paddleclasspaddle_1_1Layer_1af00f0b773d300e3e39a2464e75bdd570"></span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<code class="descname">getInput</code><span class="sig-paren">(</span>size_t <em>inputIndex</em><span class="sig-paren">)</span> <em class="property">const</em><a class="headerlink" href="#_CPPv2NK6paddle5Layer8getInputE6size_t" title="Permalink to this definition">¶</a></dt>
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<dd><p>Get the argument of input layer. </p>
</dd></dl>

<dl class="function">
367 368
<dt id="_CPPv2NK6paddle5Layer8getInputERK5Layer">
<span id="paddle::Layer::getInput__LayerCRC"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a9a87c663421730384a73e015eae317a9"></span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<code class="descname">getInput</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="#_CPPv2N6paddle5LayerE" title="paddle::Layer">Layer</a> &amp;<em>inputLayer</em><span class="sig-paren">)</span> <em class="property">const</em><a class="headerlink" href="#_CPPv2NK6paddle5Layer8getInputERK5Layer" title="Permalink to this definition">¶</a></dt>
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<dd><p>Get the argument of input layer. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer13getInputValueEi">
<span id="paddle::Layer::getInputValue__i"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a8ed348f4bf5e2509ba553380ceabff5c"></span><em class="property">const</em> <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> &amp;<code class="descname">getInputValue</code><span class="sig-paren">(</span>int <em>inputIndex</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer13getInputValueEi" title="Permalink to this definition">¶</a></dt>
<dd><p>Get the forward-input value. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer13getInputValueERK5Layer">
380
<span id="paddle::Layer::getInputValue__LayerCR"></span><span class="target" id="paddleclasspaddle_1_1Layer_1afabccf627d32a0da7f2e5848359ddffa"></span><em class="property">const</em> <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> &amp;<code class="descname">getInputValue</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="#_CPPv2N6paddle5LayerE" title="paddle::Layer">Layer</a> &amp;<em>inputLayer</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer13getInputValueERK5Layer" title="Permalink to this definition">¶</a></dt>
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<dd><p>Get the forward-input value. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer12getInputGradEi">
<span id="paddle::Layer::getInputGrad__i"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a91f8ed6a92c5ae035dbfa5badb2eb780"></span><em class="property">const</em> <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> &amp;<code class="descname">getInputGrad</code><span class="sig-paren">(</span>int <em>inputIndex</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer12getInputGradEi" title="Permalink to this definition">¶</a></dt>
<dd><p>Get the forward-input grad. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer12getInputGradERK5Layer">
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<span id="paddle::Layer::getInputGrad__LayerCR"></span><span class="target" id="paddleclasspaddle_1_1Layer_1acb59b08bd5008513011d516332c1a3be"></span><em class="property">const</em> <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> &amp;<code class="descname">getInputGrad</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="#_CPPv2N6paddle5LayerE" title="paddle::Layer">Layer</a> &amp;<em>inputLayer</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer12getInputGradERK5Layer" title="Permalink to this definition">¶</a></dt>
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<dd><p>Get the forward-input grad. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer13getInputLabelERK5Layer">
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<span id="paddle::Layer::getInputLabel__LayerCR"></span><span class="target" id="paddleclasspaddle_1_1Layer_1abba8cfe5f7a5ebbd9558ebfb655d4b61"></span><em class="property">const</em> <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle10IVectorPtrE" title="paddle::IVectorPtr">IVectorPtr</a> &amp;<code class="descname">getInputLabel</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="#_CPPv2N6paddle5LayerE" title="paddle::Layer">Layer</a> &amp;<em>inputLayer</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer13getInputLabelERK5Layer" title="Permalink to this definition">¶</a></dt>
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<dd><p>Get the forward-input label. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer18resetSpecifyOutputER8Argument6size_t6size_tbb">
<span id="paddle::Layer::resetSpecifyOutput__ArgumentR.s.s.b.b"></span><span class="target" id="paddleclasspaddle_1_1Layer_1aa095e40a41695ab4968fe7b61ea0cda2"></span>void <code class="descname">resetSpecifyOutput</code><span class="sig-paren">(</span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>output</em>, size_t <em>height</em>, size_t <em>width</em>, bool <em>isValueClean</em>, bool <em>isGradClean</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer18resetSpecifyOutputER8Argument6size_t6size_tbb" title="Permalink to this definition">¶</a></dt>
<dd><p>Change the size of output (value, grad). Reset to value zero if isValueClean = true, Reset to grad zero if isGradClean = true. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer17addOutputArgumentEi">
<span id="paddle::Layer::addOutputArgument__i"></span><span class="target" id="paddleclasspaddle_1_1Layer_1ae859412318b0b79c1669ccbd0f663593"></span>void <code class="descname">addOutputArgument</code><span class="sig-paren">(</span>int <em>deviceId</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer17addOutputArgumentEi" title="Permalink to this definition">¶</a></dt>
<dd><p>Add output argument to other devices. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer17forwardActivationEv">
<span id="paddle::Layer::forwardActivation"></span><span class="target" id="paddleclasspaddle_1_1Layer_1ad7ad1fcbf801ba30a248949ca415c3e8"></span>void <code class="descname">forwardActivation</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer17forwardActivationEv" title="Permalink to this definition">¶</a></dt>
<dd><p>Forward of activation function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer18backwardActivationEv">
<span id="paddle::Layer::backwardActivation"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a5aef0a51af761eb8427f6752f175fb31"></span>void <code class="descname">backwardActivation</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer18backwardActivationEv" title="Permalink to this definition">¶</a></dt>
<dd><p>Backward of activation function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer14forwardDropOutEv">
<span id="paddle::Layer::forwardDropOut"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a5ce995462e230e7c7909e3cb45afa160"></span>void <code class="descname">forwardDropOut</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer14forwardDropOutEv" title="Permalink to this definition">¶</a></dt>
<dd><p>Forward of dropOut. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle5Layer13initNeedFlagsEv">
<span id="paddle::Layer::initNeedFlags"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a6937a2829e94af85c0b8d00491fae31c"></span>void <code class="descname">initNeedFlags</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle5Layer13initNeedFlagsEv" title="Permalink to this definition">¶</a></dt>
<dd><p>Initilize the needGradient_ flag. </p>
</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle5Layer7config_E">
<span id="paddle::Layer::config___LayerConfig"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a8f26b5361a4a7c4e217c135834330aaf"></span>LayerConfig <code class="descname">config_</code><a class="headerlink" href="#_CPPv2N6paddle5Layer7config_E" title="Permalink to this definition">¶</a></dt>
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<dd><p><a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">Layer</span></a> config. </p>
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</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle5Layer7useGpu_E">
<span id="paddle::Layer::useGpu___b"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a4d85bb9983962e0db6dc24fd68a2cf96"></span>bool <code class="descname">useGpu_</code><a class="headerlink" href="#_CPPv2N6paddle5Layer7useGpu_E" title="Permalink to this definition">¶</a></dt>
<dd><p>whether to use GPU </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle5Layer9deviceId_E">
<span id="paddle::Layer::deviceId___i"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a283dfd2540939278b8b5e338328e905c"></span>int <code class="descname">deviceId_</code><a class="headerlink" href="#_CPPv2N6paddle5Layer9deviceId_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Device Id. CPU is -1, and GPU is 0, 1, 2 ... </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle5Layer12inputLayers_E">
<span id="paddle::Layer::inputLayers___std::vector:LayerPtr:"></span><span class="target" id="paddleclasspaddle_1_1Layer_1aad6b349ac2fc4a49bc32db91b4d49bd7"></span>std::vector&lt;LayerPtr&gt; <code class="descname">inputLayers_</code><a class="headerlink" href="#_CPPv2N6paddle5Layer12inputLayers_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Input layers. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle5Layer14inputArgument_E">
<span id="paddle::Layer::inputArgument___std::vector:ss:"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a637f6ab1d7dd2f8cf2c4357ba372a355"></span>std::vector&lt;std::string&gt; <code class="descname">inputArgument_</code><a class="headerlink" href="#_CPPv2N6paddle5Layer14inputArgument_E" title="Permalink to this definition">¶</a></dt>
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<dd><p><a class="reference internal" href="../../parameter/parameter/parameter.html#paddlestructpaddle_1_1Argument"><span class="std std-ref">Argument</span></a> of input layers. </p>
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</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle5Layer11parameters_E">
<span id="paddle::Layer::parameters___std::vector:ParameterPtr:"></span><span class="target" id="paddleclasspaddle_1_1Layer_1af60548b369b0c96154ef2bc7290d9225"></span>std::vector&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterPtrE" title="paddle::ParameterPtr">ParameterPtr</a>&gt; <code class="descname">parameters_</code><a class="headerlink" href="#_CPPv2N6paddle5Layer11parameters_E" title="Permalink to this definition">¶</a></dt>
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<dd><p><a class="reference internal" href="../../parameter/parameter/parameter.html#paddleclasspaddle_1_1Parameter"><span class="std std-ref">Parameter</span></a> for each input layer. Parameters_[i] is nullptr if inputLayers_[i] does not need parameter. </p>
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</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle5Layer14biasParameter_E">
<span id="paddle::Layer::biasParameter___ParameterPtr"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a8fb18a85b69714f63d4ec1010425133e"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterPtrE" title="paddle::ParameterPtr">ParameterPtr</a> <code class="descname">biasParameter_</code><a class="headerlink" href="#_CPPv2N6paddle5Layer14biasParameter_E" title="Permalink to this definition">¶</a></dt>
<dd><p>nullptr if bias is not needed. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle5Layer7output_E">
<span id="paddle::Layer::output___Argument"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a955c467f7d96f46d8e2ea0e995137097"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> <code class="descname">output_</code><a class="headerlink" href="#_CPPv2N6paddle5Layer7output_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Output. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle5Layer18outputOtherDevice_E">
<span id="paddle::Layer::outputOtherDevice___std::vector:Argument:"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a5e2d47420fad92ebf3f7905cb330f1f6"></span>std::vector&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a>&gt; <code class="descname">outputOtherDevice_</code><a class="headerlink" href="#_CPPv2N6paddle5Layer18outputOtherDevice_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Several outputs stored on different devices, used in &#8216;parallel_nn&#8217; case, and record them by deviceId_. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle5Layer10outputMap_E">
<span id="paddle::Layer::outputMap___std::map:ss.ArgumentP:"></span><span class="target" id="paddleclasspaddle_1_1Layer_1ad72cbf88127c189caae1be5ae0192816"></span>std::map&lt;std::string, <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> *&gt; <code class="descname">outputMap_</code><a class="headerlink" href="#_CPPv2N6paddle5Layer10outputMap_E" title="Permalink to this definition">¶</a></dt>
<dd><p>If there are several outputs, map them by each name. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle5Layer8tmpGrad_E">
<span id="paddle::Layer::tmpGrad___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a6d46df7d690baf0ee771080cffc3383d"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">tmpGrad_</code><a class="headerlink" href="#_CPPv2N6paddle5Layer8tmpGrad_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Used to merge grad on different devices. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle5Layer11activation_E">
<span id="paddle::Layer::activation___std::unique_ptr:ActivationFunction:"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a1887f71ea157ba2a4c899cc6ceea4862"></span>std::unique_ptr&lt;<a class="reference internal" href="../activations/index.html#_CPPv2N6paddle18ActivationFunctionE" title="paddle::ActivationFunction">ActivationFunction</a>&gt; <code class="descname">activation_</code><a class="headerlink" href="#_CPPv2N6paddle5Layer11activation_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle5Layer9passType_E">
<span id="paddle::Layer::passType___PassType"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a67582774a967bf08de70e5d34c451e05"></span>PassType <code class="descname">passType_</code><a class="headerlink" href="#_CPPv2N6paddle5Layer9passType_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Current passType, PASS_TRAIN or PASS_TEST. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle5Layer12dropOutMask_E">
<span id="paddle::Layer::dropOutMask___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a9c4190cc34bbfe809fc2cea65d2855ec"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">dropOutMask_</code><a class="headerlink" href="#_CPPv2N6paddle5Layer12dropOutMask_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Random 0-1 matrix for dropOut. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle5Layer13needGradient_E">
<span id="paddle::Layer::needGradient___b"></span><span class="target" id="paddleclasspaddle_1_1Layer_1a63119f910550502651041a18c4a01b2a"></span>bool <code class="descname">needGradient_</code><a class="headerlink" href="#_CPPv2N6paddle5Layer13needGradient_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Whether the layer need to compute gradient. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle5Layer17needSequenceInfo_E">
<span id="paddle::Layer::needSequenceInfo___b"></span><span class="target" id="paddleclasspaddle_1_1Layer_1acee8704f2ad0f1c665f55bded3b89a5c"></span>bool <code class="descname">needSequenceInfo_</code><a class="headerlink" href="#_CPPv2N6paddle5Layer17needSequenceInfo_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Whether the layer need to compute re-sequence information. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle5Layer15markInBackward_E">
<span id="paddle::Layer::markInBackward___std::vector:b:"></span><span class="target" id="paddleclasspaddle_1_1Layer_1af9b18f129d130123c1bbc2dadb54ffc6"></span>std::vector&lt;bool&gt; <code class="descname">markInBackward_</code><a class="headerlink" href="#_CPPv2N6paddle5Layer15markInBackward_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Mark input grad in(true) or out(false) of backward function. </p>
</dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="projection">
<h2>Projection<a class="headerlink" href="#projection" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle10ProjectionE">
<span id="paddle::Projection"></span><span class="target" id="paddleclasspaddle_1_1Projection"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">Projection</code><a class="headerlink" href="#_CPPv2N6paddle10ProjectionE" title="Permalink to this definition">¶</a></dt>
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<dd><p>A projection takes one <a class="reference internal" href="../../parameter/parameter/parameter.html#paddlestructpaddle_1_1Argument"><span class="std std-ref">Argument</span></a> as input, calculate the result and add it to output <a class="reference internal" href="../../parameter/parameter/parameter.html#paddlestructpaddle_1_1Argument"><span class="std std-ref">Argument</span></a>. </p>
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<p>Subclassed by <a class="reference internal" href="#paddleclasspaddle_1_1ContextProjection"><span class="std std-ref">paddle::ContextProjection</span></a>, paddle::ConvProjection, <a class="reference internal" href="#paddleclasspaddle_1_1DotMulProjection"><span class="std std-ref">paddle::DotMulProjection</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1FullMatrixProjection"><span class="std std-ref">paddle::FullMatrixProjection</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1IdentityOffsetProjection"><span class="std std-ref">paddle::IdentityOffsetProjection</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1IdentityProjection"><span class="std std-ref">paddle::IdentityProjection</span></a>, paddle::PoolProjection, paddle::ScalingProjection, <a class="reference internal" href="#paddleclasspaddle_1_1TableProjection"><span class="std std-ref">paddle::TableProjection</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1TransposedFullMatrixProjection"><span class="std std-ref">paddle::TransposedFullMatrixProjection</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle10Projection10ProjectionERK16ProjectionConfig12ParameterPtrb">
<span id="paddle::Projection::Projection__ProjectionConfigCR.ParameterPtr.b"></span><span class="target" id="paddleclasspaddle_1_1Projection_1a6c605f804b023418ec42d670ff9fefc0"></span><code class="descname">Projection</code><span class="sig-paren">(</span><em class="property">const</em> ProjectionConfig &amp;<em>config</em>, <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterPtrE" title="paddle::ParameterPtr">ParameterPtr</a> <em>parameter</em>, bool <em>useGpu</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10Projection10ProjectionERK16ProjectionConfig12ParameterPtrb" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10ProjectionD0Ev">
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<span id="paddle::Projection::~Projection"></span><span class="target" id="paddleclasspaddle_1_1Projection_1a827487ed67d614a98de8841fda66b4a4"></span><em class="property">virtual</em> <code class="descname">~Projection</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10ProjectionD0Ev" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
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<dt id="_CPPv2NK6paddle10Projection7getNameEv">
<span id="paddle::Projection::getNameC"></span><span class="target" id="paddleclasspaddle_1_1Projection_1af5816c49f069ad54bd23c9cafe3c6205"></span><em class="property">const</em> std::string &amp;<code class="descname">getName</code><span class="sig-paren">(</span><span class="sig-paren">)</span> <em class="property">const</em><a class="headerlink" href="#_CPPv2NK6paddle10Projection7getNameEv" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10Projection7forwardEPK8ArgumentPK8Argument8PassType">
<span id="paddle::Projection::forward__ArgumentCP.ArgumentCP.PassType"></span><span class="target" id="paddleclasspaddle_1_1Projection_1a44b084ac8e8a736507225c3edbcd2308"></span>void <code class="descname">forward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> *<em>in</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> *<em>out</em>, PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10Projection7forwardEPK8ArgumentPK8Argument8PassType" title="Permalink to this definition">¶</a></dt>
<dd><p>Forward propagation. If backward() will be called, in and out must be kept valid until then. <dl class="docutils">
<dt><strong>Parameters</strong></dt>
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<dd><ul class="breatheparameterlist first last simple">
<li><code class="docutils literal"><span class="pre">in</span></code>: input of projection </li>
<li><code class="docutils literal"><span class="pre">out</span></code>: output of projection </li>
<li><code class="docutils literal"><span class="pre">passType</span></code>: PASS_TRAIN of PASS_TEST </li>
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</ul>
</dd>
</dl>
</p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10Projection8prefetchEPK8Argument">
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<span id="paddle::Projection::prefetch__ArgumentCP"></span><span class="target" id="paddleclasspaddle_1_1Projection_1a8b6a3f588bec53cca2c2eb8673848106"></span><em class="property">virtual</em> void <code class="descname">prefetch</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> *<em>in</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10Projection8prefetchEPK8Argument" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10Projection7forwardEv">
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<span id="paddle::Projection::forward"></span><span class="target" id="paddleclasspaddle_1_1Projection_1a40a34b90823c100b936279dbb6451f9b"></span><em class="property">virtual</em> void <code class="descname">forward</code><span class="sig-paren">(</span><span class="sig-paren">)</span> = 0<a class="headerlink" href="#_CPPv2N6paddle10Projection7forwardEv" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10Projection8backwardERK14UpdateCallback">
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<span id="paddle::Projection::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1Projection_1a0549372559b84b10282c5677d25c44cc"></span><em class="property">virtual</em> void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span> = 0<a class="headerlink" href="#_CPPv2N6paddle10Projection8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10Projection10resetStateEv">
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<span id="paddle::Projection::resetState"></span><span class="target" id="paddleclasspaddle_1_1Projection_1af365867bfa4271b363076fcf91a32fbe"></span><em class="property">virtual</em> void <code class="descname">resetState</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10Projection10resetStateEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>See comment in Layer.h for the function with the same name. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10Projection8setStateE13LayerStatePtr">
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<span id="paddle::Projection::setState__LayerStatePtr"></span><span class="target" id="paddleclasspaddle_1_1Projection_1adb9fa8dc78e6c5f9a623a9346c5e0137"></span><em class="property">virtual</em> void <code class="descname">setState</code><span class="sig-paren">(</span>LayerStatePtr <em>state</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10Projection8setStateE13LayerStatePtr" title="Permalink to this definition">¶</a></dt>
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<dd><p>Set layer state. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10Projection8getStateEv">
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<span id="paddle::Projection::getState"></span><span class="target" id="paddleclasspaddle_1_1Projection_1a0a23a3a55ffaba828ae8315bffdf2064"></span><em class="property">virtual</em> LayerStatePtr <code class="descname">getState</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10Projection8getStateEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>Get layer state. A copy of internal state is returned. </p>
</dd></dl>

<dl class="function">
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<dt id="_CPPv2NK6paddle10Projection13getOutputSizeEv">
<span id="paddle::Projection::getOutputSizeC"></span><span class="target" id="paddleclasspaddle_1_1Projection_1a2eb81a03fcca71461ea8b5947c819499"></span>size_t <code class="descname">getOutputSize</code><span class="sig-paren">(</span><span class="sig-paren">)</span> <em class="property">const</em><a class="headerlink" href="#_CPPv2NK6paddle10Projection13getOutputSizeEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>Get output size of projection. </p>
</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Static Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle10Projection6createERK16ProjectionConfig12ParameterPtrb">
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<span id="paddle::Projection::create__ProjectionConfigCR.ParameterPtr.b"></span><span class="target" id="paddleclasspaddle_1_1Projection_1acb54ecdc84637f1e772284b6ce36a377"></span><a class="reference internal" href="#_CPPv2N6paddle10ProjectionE" title="paddle::Projection">Projection</a> *<code class="descname">create</code><span class="sig-paren">(</span><em class="property">const</em> ProjectionConfig &amp;<em>config</em>, <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterPtrE" title="paddle::ParameterPtr">ParameterPtr</a> <em>parameter</em>, bool <em>useGpu</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10Projection6createERK16ProjectionConfig12ParameterPtrb" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Static Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle10Projection10registrar_E">
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<span id="paddle::Projection::registrar___ClassRegistrar:Projection.ProjectionConfig.ParameterPtr.b:"></span><span class="target" id="paddleclasspaddle_1_1Projection_1af4c99de4268de6fffbbbeef8b8954206"></span>ClassRegistrar&lt;<a class="reference internal" href="#_CPPv2N6paddle10ProjectionE" title="paddle::Projection">Projection</a>, ProjectionConfig, <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterPtrE" title="paddle::ParameterPtr">ParameterPtr</a>, bool&gt; <code class="descname">registrar_</code><a class="headerlink" href="#_CPPv2N6paddle10Projection10registrar_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>Register a projection. </p>
</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle10Projection7config_E">
<span id="paddle::Projection::config___ProjectionConfig"></span><span class="target" id="paddleclasspaddle_1_1Projection_1a0f4a414ee8013a1071915a510f4fbe28"></span>ProjectionConfig <code class="descname">config_</code><a class="headerlink" href="#_CPPv2N6paddle10Projection7config_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Config of projection. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle10Projection10parameter_E">
<span id="paddle::Projection::parameter___ParameterPtr"></span><span class="target" id="paddleclasspaddle_1_1Projection_1ae75907ae0bdb368093a8021bb910d9b7"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterPtrE" title="paddle::ParameterPtr">ParameterPtr</a> <code class="descname">parameter_</code><a class="headerlink" href="#_CPPv2N6paddle10Projection10parameter_E" title="Permalink to this definition">¶</a></dt>
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<dd><p><a class="reference internal" href="../../parameter/parameter/parameter.html#paddleclasspaddle_1_1Parameter"><span class="std std-ref">Parameter</span></a> of projection. </p>
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</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle10Projection7useGpu_E">
<span id="paddle::Projection::useGpu___b"></span><span class="target" id="paddleclasspaddle_1_1Projection_1a6a549c3b2ccce4b03d445ef03f8f2da5"></span>bool <code class="descname">useGpu_</code><a class="headerlink" href="#_CPPv2N6paddle10Projection7useGpu_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle10Projection3in_E">
<span id="paddle::Projection::in___ArgumentCP"></span><span class="target" id="paddleclasspaddle_1_1Projection_1a4ddeade10b53a0aaeea887130c067046"></span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> *<code class="descname">in_</code><a class="headerlink" href="#_CPPv2N6paddle10Projection3in_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Store <code class="docutils literal"><span class="pre">in</span></code> passed to forward() </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle10Projection4out_E">
<span id="paddle::Projection::out___ArgumentCP"></span><span class="target" id="paddleclasspaddle_1_1Projection_1a725e00ad363337e0f53fa37b27cad3ac"></span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> *<code class="descname">out_</code><a class="headerlink" href="#_CPPv2N6paddle10Projection4out_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Store <code class="docutils literal"><span class="pre">out</span></code> passed to forward() </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle10Projection9passType_E">
<span id="paddle::Projection::passType___PassType"></span><span class="target" id="paddleclasspaddle_1_1Projection_1a4626100edab0476e160976c3b495fcbb"></span>PassType <code class="descname">passType_</code><a class="headerlink" href="#_CPPv2N6paddle10Projection9passType_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Store <code class="docutils literal"><span class="pre">passType</span></code> passed to forward() </p>
</dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="operator">
<h2>Operator<a class="headerlink" href="#operator" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle8OperatorE">
<span id="paddle::Operator"></span><span class="target" id="paddleclasspaddle_1_1Operator"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">Operator</code><a class="headerlink" href="#_CPPv2N6paddle8OperatorE" title="Permalink to this definition">¶</a></dt>
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<dd><p><a class="reference internal" href="#paddleclasspaddle_1_1Operator"><span class="std std-ref">Operator</span></a> like <a class="reference internal" href="#paddleclasspaddle_1_1Projection"><span class="std std-ref">Projection</span></a>, but takes more than one <a class="reference internal" href="../../api/api.html#paddleclassArguments"><span class="std std-ref">Arguments</span></a> as input. <dl class="docutils">
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<dt><strong>Note</strong></dt>
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<dd>: <a class="reference internal" href="#paddleclasspaddle_1_1Operator"><span class="std std-ref">Operator</span></a> can&#8217;t have parameters. </dd>
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</dl>
</p>
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<p>Subclassed by <a class="reference internal" href="#paddleclasspaddle_1_1ConvOperator"><span class="std std-ref">paddle::ConvOperator</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1DotMulOperator"><span class="std std-ref">paddle::DotMulOperator</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle8Operator8OperatorERK14OperatorConfigb">
<span id="paddle::Operator::Operator__OperatorConfigCR.b"></span><span class="target" id="paddleclasspaddle_1_1Operator_1a9746cc5a5903ce252bf4e9a697ac12ad"></span><code class="descname">Operator</code><span class="sig-paren">(</span><em class="property">const</em> OperatorConfig &amp;<em>config</em>, bool <em>useGpu</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8Operator8OperatorERK14OperatorConfigb" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8OperatorD0Ev">
703
<span id="paddle::Operator::~Operator"></span><span class="target" id="paddleclasspaddle_1_1Operator_1ad548391dbd62a2dd908d786a51f8b5e5"></span><em class="property">virtual</em> <code class="descname">~Operator</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8OperatorD0Ev" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
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<dt id="_CPPv2NK6paddle8Operator9getConfigEv">
<span id="paddle::Operator::getConfigC"></span><span class="target" id="paddleclasspaddle_1_1Operator_1a837e36199d6c3f37dd09def73949bc4a"></span><em class="property">const</em> OperatorConfig &amp;<code class="descname">getConfig</code><span class="sig-paren">(</span><span class="sig-paren">)</span> <em class="property">const</em><a class="headerlink" href="#_CPPv2NK6paddle8Operator9getConfigEv" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8Operator7forwardENSt6vectorIPK8ArgumentEEP8Argument8PassType">
<span id="paddle::Operator::forward__std::vector:ArgumentCP:.ArgumentP.PassType"></span><span class="target" id="paddleclasspaddle_1_1Operator_1a381821f046fe36ec058b27dd0364787d"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>std::vector&lt;<em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> *&gt; <em>ins</em>, <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> *<em>out</em>, PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8Operator7forwardENSt6vectorIPK8ArgumentEEP8Argument8PassType" title="Permalink to this definition">¶</a></dt>
<dd><p>Forward propagation. If backward() will be called, in and out must be kept valid until then. <dl class="docutils">
<dt><strong>Parameters</strong></dt>
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<dd><ul class="breatheparameterlist first last simple">
<li><code class="docutils literal"><span class="pre">ins</span></code>: inputs of operator </li>
<li><code class="docutils literal"><span class="pre">out</span></code>: output of operator </li>
<li><code class="docutils literal"><span class="pre">passType</span></code>: PASS_TRAIN of PASS_TEST </li>
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</ul>
</dd>
</dl>
</p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8Operator8prefetchEPK8Argument">
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<span id="paddle::Operator::prefetch__ArgumentCP"></span><span class="target" id="paddleclasspaddle_1_1Operator_1acda1eff558b42b25030451fc25882462"></span><em class="property">virtual</em> void <code class="descname">prefetch</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> *<em>in</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8Operator8prefetchEPK8Argument" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8Operator7forwardEv">
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<span id="paddle::Operator::forward"></span><span class="target" id="paddleclasspaddle_1_1Operator_1a2395a30660770f2ddaafad5413cef480"></span><em class="property">virtual</em> void <code class="descname">forward</code><span class="sig-paren">(</span><span class="sig-paren">)</span> = 0<a class="headerlink" href="#_CPPv2N6paddle8Operator7forwardEv" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8Operator8backwardEv">
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<span id="paddle::Operator::backward"></span><span class="target" id="paddleclasspaddle_1_1Operator_1a4fe009b98e112c88ef9754ec184214c6"></span><em class="property">virtual</em> void <code class="descname">backward</code><span class="sig-paren">(</span><span class="sig-paren">)</span> = 0<a class="headerlink" href="#_CPPv2N6paddle8Operator8backwardEv" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8Operator10resetStateEv">
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<span id="paddle::Operator::resetState"></span><span class="target" id="paddleclasspaddle_1_1Operator_1a3c4fcc44439063de4515ebf4a573d67f"></span><em class="property">virtual</em> void <code class="descname">resetState</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8Operator10resetStateEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>See comment in Layer.h for the function with the same name. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8Operator8setStateE13LayerStatePtr">
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<span id="paddle::Operator::setState__LayerStatePtr"></span><span class="target" id="paddleclasspaddle_1_1Operator_1a775fbb6e292e3e51fecb0a16b2f9271d"></span><em class="property">virtual</em> void <code class="descname">setState</code><span class="sig-paren">(</span>LayerStatePtr <em>state</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8Operator8setStateE13LayerStatePtr" title="Permalink to this definition">¶</a></dt>
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<dd><p>Set layer state. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8Operator8getStateEv">
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<span id="paddle::Operator::getState"></span><span class="target" id="paddleclasspaddle_1_1Operator_1a78e31cde4f964061c46378962012aee7"></span><em class="property">virtual</em> LayerStatePtr <code class="descname">getState</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8Operator8getStateEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>Set layer state. </p>
</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Static Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle8Operator6createERK14OperatorConfigb">
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<span id="paddle::Operator::create__OperatorConfigCR.b"></span><span class="target" id="paddleclasspaddle_1_1Operator_1ac5d860a3a5f4b67c166d335ac3bc17e4"></span><a class="reference internal" href="#_CPPv2N6paddle8OperatorE" title="paddle::Operator">Operator</a> *<code class="descname">create</code><span class="sig-paren">(</span><em class="property">const</em> OperatorConfig &amp;<em>config</em>, bool <em>useGpu</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8Operator6createERK14OperatorConfigb" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Static Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle8Operator10registrar_E">
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<span id="paddle::Operator::registrar___ClassRegistrar:Operator.OperatorConfig.b:"></span><span class="target" id="paddleclasspaddle_1_1Operator_1a1b71916225c65a4af36292971fa27876"></span>ClassRegistrar&lt;<a class="reference internal" href="#_CPPv2N6paddle8OperatorE" title="paddle::Operator">Operator</a>, OperatorConfig, bool&gt; <code class="descname">registrar_</code><a class="headerlink" href="#_CPPv2N6paddle8Operator10registrar_E" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle8Operator7config_E">
<span id="paddle::Operator::config___OperatorConfig"></span><span class="target" id="paddleclasspaddle_1_1Operator_1ac3ef8f1ca155cee66d701aea2ed68dc4"></span>OperatorConfig <code class="descname">config_</code><a class="headerlink" href="#_CPPv2N6paddle8Operator7config_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Config of operator. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle8Operator7useGpu_E">
<span id="paddle::Operator::useGpu___b"></span><span class="target" id="paddleclasspaddle_1_1Operator_1a7594797f6e86c4de9f917b4e68c2ea7d"></span>bool <code class="descname">useGpu_</code><a class="headerlink" href="#_CPPv2N6paddle8Operator7useGpu_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle8Operator4ins_E">
<span id="paddle::Operator::ins___std::vector:ArgumentCP:"></span><span class="target" id="paddleclasspaddle_1_1Operator_1aa96d8534e952cc14e8d332a1fbaae90f"></span>std::vector&lt;<em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> *&gt; <code class="descname">ins_</code><a class="headerlink" href="#_CPPv2N6paddle8Operator4ins_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Store <code class="docutils literal"><span class="pre">ins</span></code> passed to forward() </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle8Operator4out_E">
<span id="paddle::Operator::out___ArgumentP"></span><span class="target" id="paddleclasspaddle_1_1Operator_1a7ffbf0cc51fae254efa011947bf4f1a6"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> *<code class="descname">out_</code><a class="headerlink" href="#_CPPv2N6paddle8Operator4out_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Store <code class="docutils literal"><span class="pre">out</span></code> passed to forward() </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle8Operator9passType_E">
<span id="paddle::Operator::passType___PassType"></span><span class="target" id="paddleclasspaddle_1_1Operator_1ad2a21289b422c00143cc9d576ef17d28"></span>PassType <code class="descname">passType_</code><a class="headerlink" href="#_CPPv2N6paddle8Operator9passType_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Store <code class="docutils literal"><span class="pre">passType</span></code> passed to forward() </p>
</dd></dl>

</div>
</dd></dl>

</div>
</div>
<div class="section" id="data-layer">
<h1>Data Layer<a class="headerlink" href="#data-layer" title="Permalink to this headline">¶</a></h1>
<dl class="class">
<dt id="_CPPv2N6paddle9DataLayerE">
<span id="paddle::DataLayer"></span><span class="target" id="paddleclasspaddle_1_1DataLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">DataLayer</code><a class="headerlink" href="#_CPPv2N6paddle9DataLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>This layer just copy data to output, and has no backward propagation.</p>
<p>The config file api is data_layer. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle9DataLayer9DataLayerERK11LayerConfig">
<span id="paddle::DataLayer::DataLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1DataLayer_1abaebfaf24ebf143dde1c1eb2eabed93e"></span><code class="descname">DataLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9DataLayer9DataLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle9DataLayer7setDataERK8Argument">
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<span id="paddle::DataLayer::setData__ArgumentCR"></span><span class="target" id="paddleclasspaddle_1_1DataLayer_1a255c47ab4befde33184222902ba9b0bc"></span><em class="property">virtual</em> void <code class="descname">setData</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>data</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9DataLayer7setDataERK8Argument" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle9DataLayer8prefetchEv">
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<span id="paddle::DataLayer::prefetch"></span><span class="target" id="paddleclasspaddle_1_1DataLayer_1a3c3ca9470f1699ac1db0baf7079d4490"></span>void <code class="descname">prefetch</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9DataLayer8prefetchEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>Prefetch sparse matrix/ids only. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle9DataLayer7forwardE8PassType">
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<span id="paddle::DataLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1DataLayer_1a7daec6da5702632a3c16e0325a97f93f"></span><em class="property">virtual</em> void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9DataLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. Copy data_ (value, in, grad, ids, cpuSequenceDims, sequenceStartPositions, subSequenceStartPositions, strs) to output_. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle9DataLayer8backwardERK14UpdateCallback">
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<span id="paddle::DataLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1DataLayer_1a6dcee007033fe73ecfcaad55402a2cb5"></span><em class="property">virtual</em> void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9DataLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Data layer&#8217;s backward propagation do nothing. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle9DataLayer23copyOutputToOtherDeviceEv">
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<span id="paddle::DataLayer::copyOutputToOtherDevice"></span><span class="target" id="paddleclasspaddle_1_1DataLayer_1a89ba3fa1daa91b8f2d18e817fc735dc8"></span><em class="property">virtual</em> void <code class="descname">copyOutputToOtherDevice</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9DataLayer23copyOutputToOtherDeviceEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>Copy layer&#8217;s output_ to other device. If output layer is in other device, called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle9DataLayer5data_E">
<span id="paddle::DataLayer::data___Argument"></span><span class="target" id="paddleclasspaddle_1_1DataLayer_1a4505246fd22e1a8c80bce2f72fead720"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> <code class="descname">data_</code><a class="headerlink" href="#_CPPv2N6paddle9DataLayer5data_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="fully-connected-layers">
<h1>Fully Connected Layers<a class="headerlink" href="#fully-connected-layers" title="Permalink to this headline">¶</a></h1>
<div class="section" id="fullyconnectedlayer">
<h2>FullyConnectedLayer<a class="headerlink" href="#fullyconnectedlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle19FullyConnectedLayerE">
<span id="paddle::FullyConnectedLayer"></span><span class="target" id="paddleclasspaddle_1_1FullyConnectedLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">FullyConnectedLayer</code><a class="headerlink" href="#_CPPv2N6paddle19FullyConnectedLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>A layer has full connections to all neurons in the previous layer. It computes an inner product with a set of learned weights, and (optionally) adds biases.</p>
<p>The config file api is fc_layer. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle19FullyConnectedLayer19FullyConnectedLayerERK11LayerConfig">
<span id="paddle::FullyConnectedLayer::FullyConnectedLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1FullyConnectedLayer_1a3c0fa0d92006603fbf580285e7fb2190"></span><code class="descname">FullyConnectedLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19FullyConnectedLayer19FullyConnectedLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19FullyConnectedLayerD0Ev">
<span id="paddle::FullyConnectedLayer::~FullyConnectedLayer"></span><span class="target" id="paddleclasspaddle_1_1FullyConnectedLayer_1a7a53531e5832366ff2e6f429200fe63d"></span><code class="descname">~FullyConnectedLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19FullyConnectedLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19FullyConnectedLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::FullyConnectedLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1FullyConnectedLayer_1a4aa793342e82af6abe5c15ab9152de89"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19FullyConnectedLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19FullyConnectedLayer9getWeightEi">
<span id="paddle::FullyConnectedLayer::getWeight__i"></span><span class="target" id="paddleclasspaddle_1_1FullyConnectedLayer_1ad15f0d3ae1863fa5757b3d2aa880dde8"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a> &amp;<code class="descname">getWeight</code><span class="sig-paren">(</span>int <em>idx</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19FullyConnectedLayer9getWeightEi" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19FullyConnectedLayer8prefetchEv">
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<span id="paddle::FullyConnectedLayer::prefetch"></span><span class="target" id="paddleclasspaddle_1_1FullyConnectedLayer_1a08a9ba40c7949407183c7984f5f20ec5"></span>void <code class="descname">prefetch</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19FullyConnectedLayer8prefetchEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>If use sparse row matrix as parameter, prefetch feature ids in input label. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19FullyConnectedLayer7forwardE8PassType">
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<span id="paddle::FullyConnectedLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1FullyConnectedLayer_1a3f4980bc18756a75678c505a29658eca"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19FullyConnectedLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19FullyConnectedLayer8backwardERK14UpdateCallback">
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<span id="paddle::FullyConnectedLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1FullyConnectedLayer_1a25fab0fc84458497004b6ba0bfc7e266"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19FullyConnectedLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle19FullyConnectedLayer8weights_E">
<span id="paddle::FullyConnectedLayer::weights___WeightList"></span><span class="target" id="paddleclasspaddle_1_1FullyConnectedLayer_1a1c0d554d8a297b3898452dbeeffa7e53"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle10WeightListE" title="paddle::WeightList">WeightList</a> <code class="descname">weights_</code><a class="headerlink" href="#_CPPv2N6paddle19FullyConnectedLayer8weights_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle19FullyConnectedLayer7biases_E">
<span id="paddle::FullyConnectedLayer::biases___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1FullyConnectedLayer_1a727bfcc8fd87a338a5af6315ba5ed497"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">biases_</code><a class="headerlink" href="#_CPPv2N6paddle19FullyConnectedLayer7biases_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="selectivefullyconnectedlayer">
<h2>SelectiveFullyConnectedLayer<a class="headerlink" href="#selectivefullyconnectedlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle28SelectiveFullyConnectedLayerE">
<span id="paddle::SelectiveFullyConnectedLayer"></span><span class="target" id="paddleclasspaddle_1_1SelectiveFullyConnectedLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">SelectiveFullyConnectedLayer</code><a class="headerlink" href="#_CPPv2N6paddle28SelectiveFullyConnectedLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>The <a class="reference internal" href="#paddleclasspaddle_1_1SelectiveFullyConnectedLayer"><span class="std std-ref">SelectiveFullyConnectedLayer</span></a> class. </p>
<p><a class="reference internal" href="#paddleclasspaddle_1_1SelectiveFullyConnectedLayer"><span class="std std-ref">SelectiveFullyConnectedLayer</span></a> differs from <a class="reference internal" href="#paddleclasspaddle_1_1FullyConnectedLayer"><span class="std std-ref">FullyConnectedLayer</span></a> by that it requires an additional input to indicate several selected columns, and only compute the multiplications between the input matrices and the selected columns of the parameter matrices of this layer. If the selected columns is not specified, SelectiveFullyConnected layer acts exactly like <a class="reference internal" href="#paddleclasspaddle_1_1FullyConnectedLayer"><span class="std std-ref">FullyConnectedLayer</span></a>.</p>
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<p>The config file api is selective_fc_layer. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle28SelectiveFullyConnectedLayer28SelectiveFullyConnectedLayerERK11LayerConfig">
<span id="paddle::SelectiveFullyConnectedLayer::SelectiveFullyConnectedLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1SelectiveFullyConnectedLayer_1a17e3c3889ee8f75f15517ac6eda2d3c9"></span><code class="descname">SelectiveFullyConnectedLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle28SelectiveFullyConnectedLayer28SelectiveFullyConnectedLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle28SelectiveFullyConnectedLayerD0Ev">
<span id="paddle::SelectiveFullyConnectedLayer::~SelectiveFullyConnectedLayer"></span><span class="target" id="paddleclasspaddle_1_1SelectiveFullyConnectedLayer_1a8f31e8420af1b7a210c640624fbeffb0"></span><code class="descname">~SelectiveFullyConnectedLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle28SelectiveFullyConnectedLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle28SelectiveFullyConnectedLayer8prefetchEv">
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<span id="paddle::SelectiveFullyConnectedLayer::prefetch"></span><span class="target" id="paddleclasspaddle_1_1SelectiveFullyConnectedLayer_1a8ba8c55661a6e822772aa0099012cfaa"></span>void <code class="descname">prefetch</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle28SelectiveFullyConnectedLayer8prefetchEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>If use sparse row matrix as parameter, prefetch feature ids in input label. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle28SelectiveFullyConnectedLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::SelectiveFullyConnectedLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1SelectiveFullyConnectedLayer_1a29a95af6d4f643f5c283a5ebe4623028"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle28SelectiveFullyConnectedLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle28SelectiveFullyConnectedLayer9getWeightEi">
<span id="paddle::SelectiveFullyConnectedLayer::getWeight__i"></span><span class="target" id="paddleclasspaddle_1_1SelectiveFullyConnectedLayer_1a9920c901ca06dac41e237bab4a508750"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a> &amp;<code class="descname">getWeight</code><span class="sig-paren">(</span>int <em>idx</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle28SelectiveFullyConnectedLayer9getWeightEi" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle28SelectiveFullyConnectedLayer13reserveOutputE6size_t6size_t6size_t">
<span id="paddle::SelectiveFullyConnectedLayer::reserveOutput__s.s.s"></span><span class="target" id="paddleclasspaddle_1_1SelectiveFullyConnectedLayer_1acaddc6841555461fec122c2a8ff80512"></span>void <code class="descname">reserveOutput</code><span class="sig-paren">(</span>size_t <em>height</em>, size_t <em>width</em>, size_t <em>nnz</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle28SelectiveFullyConnectedLayer13reserveOutputE6size_t6size_t6size_t" title="Permalink to this definition">¶</a></dt>
<dd><p>Resize the output matrix size. And reset value to zero. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle28SelectiveFullyConnectedLayer17fillSelectiveDataERKNSt10shared_ptrINSt6vectorINSt4pairIPi6size_tEEEEEE">
<span id="paddle::SelectiveFullyConnectedLayer::fillSelectiveData__std::shared_ptr:std::vector:std::pair:iP.s:::CR"></span><span class="target" id="paddleclasspaddle_1_1SelectiveFullyConnectedLayer_1a83fc3f6700c3a8276d11f7e3479b0af7"></span>void <code class="descname">fillSelectiveData</code><span class="sig-paren">(</span><em class="property">const</em> std::shared_ptr&lt;std::vector&lt;std::pair&lt;int *, size_t&gt;&gt;&gt; &amp;<em>candidates</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle28SelectiveFullyConnectedLayer17fillSelectiveDataERKNSt10shared_ptrINSt6vectorINSt4pairIPi6size_tEEEEEE" title="Permalink to this definition">¶</a></dt>
<dd><p>Fill candidates to select several activations as output. </p>
<p><dl class="docutils">
<dt><strong>Note</strong></dt>
<dd>CURRENTLY, THIS METHOD IS ONLY USED FOR BEAM SEARCH </dd>
<dt><strong>Parameters</strong></dt>
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<dd><ul class="breatheparameterlist first last simple">
<li><code class="docutils literal"><span class="pre">candidates</span></code>: specifies several selected columns of the parameter matrices of this layer. Multiplications only between the input matrices and the selected columns are computed. If the candidates is a nullptr, selective fc layer acts exactly like the fully connected layer. </li>
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</ul>
</dd>
</dl>
</p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle28SelectiveFullyConnectedLayer7forwardE8PassType">
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<span id="paddle::SelectiveFullyConnectedLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1SelectiveFullyConnectedLayer_1a7e7edaabcea16979a605bced4e56ece8"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle28SelectiveFullyConnectedLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle28SelectiveFullyConnectedLayer8backwardERK14UpdateCallback">
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<span id="paddle::SelectiveFullyConnectedLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1SelectiveFullyConnectedLayer_1a962ae04867ac37595c31007bf3c89342"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle28SelectiveFullyConnectedLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle28SelectiveFullyConnectedLayer8weights_E">
<span id="paddle::SelectiveFullyConnectedLayer::weights___WeightList"></span><span class="target" id="paddleclasspaddle_1_1SelectiveFullyConnectedLayer_1a694545d7a10da2a41b4a47d9dc7c8219"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle10WeightListE" title="paddle::WeightList">WeightList</a> <code class="descname">weights_</code><a class="headerlink" href="#_CPPv2N6paddle28SelectiveFullyConnectedLayer8weights_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle28SelectiveFullyConnectedLayer7biases_E">
<span id="paddle::SelectiveFullyConnectedLayer::biases___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1SelectiveFullyConnectedLayer_1ac520613ab3eecb63f5c9c1de77a30f3b"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">biases_</code><a class="headerlink" href="#_CPPv2N6paddle28SelectiveFullyConnectedLayer7biases_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
</div>
<div class="section" id="conv-layers">
<h1>Conv Layers<a class="headerlink" href="#conv-layers" title="Permalink to this headline">¶</a></h1>
<div class="section" id="convbaselayer">
<h2>ConvBaseLayer<a class="headerlink" href="#convbaselayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle13ConvBaseLayerE">
<span id="paddle::ConvBaseLayer"></span><span class="target" id="paddleclasspaddle_1_1ConvBaseLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">ConvBaseLayer</code><a class="headerlink" href="#_CPPv2N6paddle13ConvBaseLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>A Base Convolution <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">Layer</span></a>, which convolves the input image with learned filters and (optionally) adds biases. </p>
<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<p>Subclassed by <a class="reference internal" href="#paddleclasspaddle_1_1CudnnConvLayer"><span class="std std-ref">paddle::CudnnConvLayer</span></a>, paddle::ExpandConvBaseLayer</p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle13ConvBaseLayer13ConvBaseLayerERK11LayerConfig">
<span id="paddle::ConvBaseLayer::ConvBaseLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1ConvBaseLayer_1a8ca6b9ed231b469f064c1ef8eefc5067"></span><code class="descname">ConvBaseLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13ConvBaseLayer13ConvBaseLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13ConvBaseLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::ConvBaseLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1ConvBaseLayer_1acd01167ed2f5e6dcb0369cae23a9d08b"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13ConvBaseLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

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<dl class="function">
<dt id="_CPPv2N6paddle13ConvBaseLayer13calOutputSizeEv">
<span id="paddle::ConvBaseLayer::calOutputSize"></span><span class="target" id="paddleclasspaddle_1_1ConvBaseLayer_1a87360144a6cb7e67a7c1ef80ca49a56b"></span>size_t <code class="descname">calOutputSize</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13ConvBaseLayer13calOutputSizeEv" title="Permalink to this definition">¶</a></dt>
<dd><p>imgSizeH_ and imgSizeW_ will be set according to the previous input layers in this function. Then it will calculate outputH_ and outputW_ and set them into output argument. </p>
</dd></dl>

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<dl class="function">
<dt id="_CPPv2N6paddle13ConvBaseLayer9getWeightEi">
<span id="paddle::ConvBaseLayer::getWeight__i"></span><span class="target" id="paddleclasspaddle_1_1ConvBaseLayer_1a13f791a0a65b27f913d7eebb43ee9127"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a> &amp;<code class="descname">getWeight</code><span class="sig-paren">(</span>int <em>idx</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13ConvBaseLayer9getWeightEi" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Types</p>
<dl class="type">
<dt id="_CPPv2N6paddle13ConvBaseLayer4IntVE">
<span id="paddle::ConvBaseLayer::IntV"></span><span class="target" id="paddleclasspaddle_1_1ConvBaseLayer_1af3111412759a90113b563c0a6e3ea344"></span><em class="property">typedef </em>std::vector&lt;int&gt; <code class="descname">IntV</code><a class="headerlink" href="#_CPPv2N6paddle13ConvBaseLayer4IntVE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
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<dl class="member">
<dt id="_CPPv2N6paddle13ConvBaseLayer9isDeconv_E">
<span id="paddle::ConvBaseLayer::isDeconv___b"></span><span class="target" id="paddleclasspaddle_1_1ConvBaseLayer_1a665c94805986ca467e0eda075f694673"></span>bool <code class="descname">isDeconv_</code><a class="headerlink" href="#_CPPv2N6paddle13ConvBaseLayer9isDeconv_E" title="Permalink to this definition">¶</a></dt>
<dd><p>True if it&#8217;s deconv layer, false if it&#8217;s convolution layer. </p>
</dd></dl>

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<dl class="member">
<dt id="_CPPv2N6paddle13ConvBaseLayer11numFilters_E">
<span id="paddle::ConvBaseLayer::numFilters___i"></span><span class="target" id="paddleclasspaddle_1_1ConvBaseLayer_1a26581258a4b8c07ee62a183eee60e1f5"></span>int <code class="descname">numFilters_</code><a class="headerlink" href="#_CPPv2N6paddle13ConvBaseLayer11numFilters_E" title="Permalink to this definition">¶</a></dt>
<dd><p>The number of filters. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13ConvBaseLayer8padding_E">
<span id="paddle::ConvBaseLayer::padding___IntV"></span><span class="target" id="paddleclasspaddle_1_1ConvBaseLayer_1ad685a10156fb18ea059ad032af260ad9"></span><a class="reference internal" href="#_CPPv2N6paddle13ConvBaseLayer4IntVE" title="paddle::ConvBaseLayer::IntV">IntV</a> <code class="descname">padding_</code><a class="headerlink" href="#_CPPv2N6paddle13ConvBaseLayer8padding_E" title="Permalink to this definition">¶</a></dt>
<dd><p>The x dimension of the padding. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13ConvBaseLayer9paddingY_E">
<span id="paddle::ConvBaseLayer::paddingY___IntV"></span><span class="target" id="paddleclasspaddle_1_1ConvBaseLayer_1a23761953ec0381eeff3cecd92a93f7cf"></span><a class="reference internal" href="#_CPPv2N6paddle13ConvBaseLayer4IntVE" title="paddle::ConvBaseLayer::IntV">IntV</a> <code class="descname">paddingY_</code><a class="headerlink" href="#_CPPv2N6paddle13ConvBaseLayer9paddingY_E" title="Permalink to this definition">¶</a></dt>
<dd><p>The y dimension of the padding. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13ConvBaseLayer7stride_E">
<span id="paddle::ConvBaseLayer::stride___IntV"></span><span class="target" id="paddleclasspaddle_1_1ConvBaseLayer_1a8a0e460f66cbab3c2c6c883460ac5875"></span><a class="reference internal" href="#_CPPv2N6paddle13ConvBaseLayer4IntVE" title="paddle::ConvBaseLayer::IntV">IntV</a> <code class="descname">stride_</code><a class="headerlink" href="#_CPPv2N6paddle13ConvBaseLayer7stride_E" title="Permalink to this definition">¶</a></dt>
<dd><p>The x dimension of the stride. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13ConvBaseLayer8strideY_E">
<span id="paddle::ConvBaseLayer::strideY___IntV"></span><span class="target" id="paddleclasspaddle_1_1ConvBaseLayer_1abcca8dc99d1ee30cdbc19e63098c42c1"></span><a class="reference internal" href="#_CPPv2N6paddle13ConvBaseLayer4IntVE" title="paddle::ConvBaseLayer::IntV">IntV</a> <code class="descname">strideY_</code><a class="headerlink" href="#_CPPv2N6paddle13ConvBaseLayer8strideY_E" title="Permalink to this definition">¶</a></dt>
<dd><p>The y dimension of the stride. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13ConvBaseLayer11filterSize_E">
<span id="paddle::ConvBaseLayer::filterSize___IntV"></span><span class="target" id="paddleclasspaddle_1_1ConvBaseLayer_1ac62acf8e350af7e2213a4bff90c23d6a"></span><a class="reference internal" href="#_CPPv2N6paddle13ConvBaseLayer4IntVE" title="paddle::ConvBaseLayer::IntV">IntV</a> <code class="descname">filterSize_</code><a class="headerlink" href="#_CPPv2N6paddle13ConvBaseLayer11filterSize_E" title="Permalink to this definition">¶</a></dt>
<dd><p>The x dimension of a filter kernel. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13ConvBaseLayer12filterSizeY_E">
<span id="paddle::ConvBaseLayer::filterSizeY___IntV"></span><span class="target" id="paddleclasspaddle_1_1ConvBaseLayer_1a5203a0b43fb71efadfa625bec72e7796"></span><a class="reference internal" href="#_CPPv2N6paddle13ConvBaseLayer4IntVE" title="paddle::ConvBaseLayer::IntV">IntV</a> <code class="descname">filterSizeY_</code><a class="headerlink" href="#_CPPv2N6paddle13ConvBaseLayer12filterSizeY_E" title="Permalink to this definition">¶</a></dt>
<dd><p>The y dimension of a filter kernel. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13ConvBaseLayer9channels_E">
<span id="paddle::ConvBaseLayer::channels___IntV"></span><span class="target" id="paddleclasspaddle_1_1ConvBaseLayer_1a28993ab539799f98abc8fb3fbe99f754"></span><a class="reference internal" href="#_CPPv2N6paddle13ConvBaseLayer4IntVE" title="paddle::ConvBaseLayer::IntV">IntV</a> <code class="descname">channels_</code><a class="headerlink" href="#_CPPv2N6paddle13ConvBaseLayer9channels_E" title="Permalink to this definition">¶</a></dt>
<dd><p>The spatial dimensions of the convolution input. </p>
</dd></dl>

<dl class="member">
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<dt id="_CPPv2N6paddle13ConvBaseLayer9imgSizeH_E">
<span id="paddle::ConvBaseLayer::imgSizeH___IntV"></span><span class="target" id="paddleclasspaddle_1_1ConvBaseLayer_1a4e5be7ef22ba35e47f127c38435c1a6d"></span><a class="reference internal" href="#_CPPv2N6paddle13ConvBaseLayer4IntVE" title="paddle::ConvBaseLayer::IntV">IntV</a> <code class="descname">imgSizeH_</code><a class="headerlink" href="#_CPPv2N6paddle13ConvBaseLayer9imgSizeH_E" title="Permalink to this definition">¶</a></dt>
<dd><p>The spatial dimensions of input feature map height. </p>
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</dd></dl>

<dl class="member">
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<dt id="_CPPv2N6paddle13ConvBaseLayer9imgSizeW_E">
<span id="paddle::ConvBaseLayer::imgSizeW___IntV"></span><span class="target" id="paddleclasspaddle_1_1ConvBaseLayer_1a79cd8868153f23a677be066a8cea97f0"></span><a class="reference internal" href="#_CPPv2N6paddle13ConvBaseLayer4IntVE" title="paddle::ConvBaseLayer::IntV">IntV</a> <code class="descname">imgSizeW_</code><a class="headerlink" href="#_CPPv2N6paddle13ConvBaseLayer9imgSizeW_E" title="Permalink to this definition">¶</a></dt>
<dd><p>The spatial dimensions of input feature map width. </p>
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</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13ConvBaseLayer13filterPixels_E">
<span id="paddle::ConvBaseLayer::filterPixels___IntV"></span><span class="target" id="paddleclasspaddle_1_1ConvBaseLayer_1a629d6a39be74c75c767bb8a97b14fd6b"></span><a class="reference internal" href="#_CPPv2N6paddle13ConvBaseLayer4IntVE" title="paddle::ConvBaseLayer::IntV">IntV</a> <code class="descname">filterPixels_</code><a class="headerlink" href="#_CPPv2N6paddle13ConvBaseLayer13filterPixels_E" title="Permalink to this definition">¶</a></dt>
<dd><p>filterPixels_ = filterSizeX_ * filterSizeY_. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13ConvBaseLayer15filterChannels_E">
<span id="paddle::ConvBaseLayer::filterChannels___IntV"></span><span class="target" id="paddleclasspaddle_1_1ConvBaseLayer_1a9ba8730f1935c02668ccaa31beeb731a"></span><a class="reference internal" href="#_CPPv2N6paddle13ConvBaseLayer4IntVE" title="paddle::ConvBaseLayer::IntV">IntV</a> <code class="descname">filterChannels_</code><a class="headerlink" href="#_CPPv2N6paddle13ConvBaseLayer15filterChannels_E" title="Permalink to this definition">¶</a></dt>
<dd><p>filterChannels_ = channels_/groups_. </p>
</dd></dl>

<dl class="member">
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<dt id="_CPPv2N6paddle13ConvBaseLayer8outputH_E">
<span id="paddle::ConvBaseLayer::outputH___IntV"></span><span class="target" id="paddleclasspaddle_1_1ConvBaseLayer_1a34c29b1e3cd34025207d4a86455f2df0"></span><a class="reference internal" href="#_CPPv2N6paddle13ConvBaseLayer4IntVE" title="paddle::ConvBaseLayer::IntV">IntV</a> <code class="descname">outputH_</code><a class="headerlink" href="#_CPPv2N6paddle13ConvBaseLayer8outputH_E" title="Permalink to this definition">¶</a></dt>
<dd><p>The spatial dimensions of output feature map height. </p>
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</dd></dl>

<dl class="member">
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<dt id="_CPPv2N6paddle13ConvBaseLayer8outputW_E">
<span id="paddle::ConvBaseLayer::outputW___IntV"></span><span class="target" id="paddleclasspaddle_1_1ConvBaseLayer_1a37f01f7017bb0063c4f1a13c5fa92dbd"></span><a class="reference internal" href="#_CPPv2N6paddle13ConvBaseLayer4IntVE" title="paddle::ConvBaseLayer::IntV">IntV</a> <code class="descname">outputW_</code><a class="headerlink" href="#_CPPv2N6paddle13ConvBaseLayer8outputW_E" title="Permalink to this definition">¶</a></dt>
<dd><p>The spatial dimensions of output feature map width. </p>
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</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13ConvBaseLayer7groups_E">
<span id="paddle::ConvBaseLayer::groups___IntV"></span><span class="target" id="paddleclasspaddle_1_1ConvBaseLayer_1ae6c9da5b36ef304e55c7eb068eb39e41"></span><a class="reference internal" href="#_CPPv2N6paddle13ConvBaseLayer4IntVE" title="paddle::ConvBaseLayer::IntV">IntV</a> <code class="descname">groups_</code><a class="headerlink" href="#_CPPv2N6paddle13ConvBaseLayer7groups_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Group size, refer to grouped convolution in Alex Krizhevsky&#8217;s paper: when group=2, the first half of the filters are only connected to the first half of the input channels, and the second half only connected to the second half. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13ConvBaseLayer13sharedBiases_E">
<span id="paddle::ConvBaseLayer::sharedBiases___b"></span><span class="target" id="paddleclasspaddle_1_1ConvBaseLayer_1ab2e9ddc1f50be80e33a30e586e6e42a2"></span>bool <code class="descname">sharedBiases_</code><a class="headerlink" href="#_CPPv2N6paddle13ConvBaseLayer13sharedBiases_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Whether the bias is shared for feature in each channel. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13ConvBaseLayer8weights_E">
<span id="paddle::ConvBaseLayer::weights___WeightList"></span><span class="target" id="paddleclasspaddle_1_1ConvBaseLayer_1a87b3d27e44fb9873bd7f0158fb219e9b"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle10WeightListE" title="paddle::WeightList">WeightList</a> <code class="descname">weights_</code><a class="headerlink" href="#_CPPv2N6paddle13ConvBaseLayer8weights_E" title="Permalink to this definition">¶</a></dt>
<dd><p>shape of weight: (numChannels * filterPixels_, numFilters) </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13ConvBaseLayer7biases_E">
<span id="paddle::ConvBaseLayer::biases___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1ConvBaseLayer_1a2fffdfed4e1fc8c2f3497cd68e36f2ee"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">biases_</code><a class="headerlink" href="#_CPPv2N6paddle13ConvBaseLayer7biases_E" title="Permalink to this definition">¶</a></dt>
<dd><p>If shared_biases is false shape of bias: (numFilters_, 1) If shared_biases is ture shape of bias: (numFilters_ * outputX * outputY, 1) </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13ConvBaseLayer10caffeMode_E">
<span id="paddle::ConvBaseLayer::caffeMode___b"></span><span class="target" id="paddleclasspaddle_1_1ConvBaseLayer_1a68eb68847b7a693f353b871971aea1b2"></span>bool <code class="descname">caffeMode_</code><a class="headerlink" href="#_CPPv2N6paddle13ConvBaseLayer10caffeMode_E" title="Permalink to this definition">¶</a></dt>
<dd><p>True by default. The only difference is the calculation of output size. </p>
</dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="convoperator">
<h2>ConvOperator<a class="headerlink" href="#convoperator" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle12ConvOperatorE">
<span id="paddle::ConvOperator"></span><span class="target" id="paddleclasspaddle_1_1ConvOperator"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">ConvOperator</code><a class="headerlink" href="#_CPPv2N6paddle12ConvOperatorE" title="Permalink to this definition">¶</a></dt>
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<dd><p><a class="reference internal" href="#paddleclasspaddle_1_1ConvOperator"><span class="std std-ref">ConvOperator</span></a> takes two inputs to perform the convolution. The first input is the image, and the second input is the convolution kernel. The height of data for two inputs are the same. Each data of the first input is convolved with each data of the second input indepedently. </p>
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<p>The config file api is conv_operator. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Operator"><span class="std std-ref">paddle::Operator</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle12ConvOperator12ConvOperatorERK14OperatorConfigb">
<span id="paddle::ConvOperator::ConvOperator__OperatorConfigCR.b"></span><span class="target" id="paddleclasspaddle_1_1ConvOperator_1aa0a760a639023170114f97d39dbce076"></span><code class="descname">ConvOperator</code><span class="sig-paren">(</span><em class="property">const</em> OperatorConfig &amp;<em>config</em>, bool <em>useGpu</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle12ConvOperator12ConvOperatorERK14OperatorConfigb" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle12ConvOperatorD0Ev">
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<span id="paddle::ConvOperator::~ConvOperator"></span><span class="target" id="paddleclasspaddle_1_1ConvOperator_1a22b440cee906ea111c04e627fe4c2ea9"></span><em class="property">virtual</em> <code class="descname">~ConvOperator</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle12ConvOperatorD0Ev" title="Permalink to this definition">¶</a></dt>
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<dd><p>Free workspace in device and destroy cudnn tensor descriptor. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle12ConvOperator7forwardEv">
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<span id="paddle::ConvOperator::forward"></span><span class="target" id="paddleclasspaddle_1_1ConvOperator_1ad3f1055c956e28eb7017d31b3fd92d78"></span>void <code class="descname">forward</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle12ConvOperator7forwardEv" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle12ConvOperator8backwardEv">
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<span id="paddle::ConvOperator::backward"></span><span class="target" id="paddleclasspaddle_1_1ConvOperator_1a9359ecbbe9d2f9edcb389bb8dd009397"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle12ConvOperator8backwardEv" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="convshiftlayer">
<h2>ConvShiftLayer<a class="headerlink" href="#convshiftlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle14ConvShiftLayerE">
<span id="paddle::ConvShiftLayer"></span><span class="target" id="paddleclasspaddle_1_1ConvShiftLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">ConvShiftLayer</code><a class="headerlink" href="#_CPPv2N6paddle14ConvShiftLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>A layer for circular convluation of two vectors, which is used in NEURAL TURING MACHINE. </p>
<p><ul>
<li><p class="first">Input: two vectors, the first is data (batchSize x dataDim) the second is shift weights (batchSize x shiftDim)</p>
</li>
<li><p class="first">Output: a vector (batchSize x dataDim) Assumed that:</p>
</li>
<li><p class="first">a[in]: contains M elements.</p>
</li>
<li><p class="first">b[in]: contains N elements (N should be odd).</p>
</li>
<li><p class="first">c[out]: contains M elements.</p>
<p><div class="math">
\[ c[i] = \sum_{j=-(N-1)/2}^{(N-1)/2}a_{i+j} * b_{j} \]</div>
</p>
</li>
</ul>
</p>
<p>In this formula:<ul class="simple">
<li>a&#8217;s index is computed modulo M.</li>
<li>b&#8217;s index is comupted modulo N.</li>
</ul>
</p>
<p>The config file api is conv_shift_layer. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle14ConvShiftLayer14ConvShiftLayerERK11LayerConfig">
<span id="paddle::ConvShiftLayer::ConvShiftLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1ConvShiftLayer_1a7cd5808ef9ecc4d5ff89bb82f24e0ead"></span><code class="descname">ConvShiftLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14ConvShiftLayer14ConvShiftLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14ConvShiftLayerD0Ev">
<span id="paddle::ConvShiftLayer::~ConvShiftLayer"></span><span class="target" id="paddleclasspaddle_1_1ConvShiftLayer_1ae4bcae0419e3a77f79fb8f4202cabe47"></span><code class="descname">~ConvShiftLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14ConvShiftLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14ConvShiftLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::ConvShiftLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1ConvShiftLayer_1ab71721fb6a3d1f59935e47da88a876c9"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14ConvShiftLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14ConvShiftLayer7forwardE8PassType">
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<span id="paddle::ConvShiftLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1ConvShiftLayer_1a86e201ab3067923dac0be8d28a7f241c"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14ConvShiftLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14ConvShiftLayer8backwardERK14UpdateCallback">
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<span id="paddle::ConvShiftLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1ConvShiftLayer_1a38f3a55af1fcec7841f29bc59a852311"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14ConvShiftLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="cudnnconvlayer">
<h2>CudnnConvLayer<a class="headerlink" href="#cudnnconvlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle14CudnnConvLayerE">
<span id="paddle::CudnnConvLayer"></span><span class="target" id="paddleclasspaddle_1_1CudnnConvLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">CudnnConvLayer</code><a class="headerlink" href="#_CPPv2N6paddle14CudnnConvLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>A 2-dimension conv layer implemented by cuDNN. It only supports GPU mode. We automatic select <a class="reference internal" href="#paddleclasspaddle_1_1CudnnConvLayer"><span class="std std-ref">CudnnConvLayer</span></a> for GPU mode and <a class="reference internal" href="#paddleclasspaddle_1_1ExpandConvLayer"><span class="std std-ref">ExpandConvLayer</span></a> for CPU mode if you set type of &#8220;conv&#8221;. User also can specfiy type of &#8220;exconv&#8221; or &#8220;cudnn_conv&#8221; for particular type. </p>
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<p>The config file api is img_conv_layer. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1ConvBaseLayer"><span class="std std-ref">paddle::ConvBaseLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle14CudnnConvLayer14CudnnConvLayerERK11LayerConfig">
<span id="paddle::CudnnConvLayer::CudnnConvLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1CudnnConvLayer_1a7a5684ee940341c169e6a7ff9e6b8d71"></span><code class="descname">CudnnConvLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14CudnnConvLayer14CudnnConvLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14CudnnConvLayerD0Ev">
<span id="paddle::CudnnConvLayer::~CudnnConvLayer"></span><span class="target" id="paddleclasspaddle_1_1CudnnConvLayer_1ae6495a718e23025fb0758ecaf23a82f1"></span><code class="descname">~CudnnConvLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14CudnnConvLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14CudnnConvLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::CudnnConvLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1CudnnConvLayer_1a86474f2dbb5e3c7affeb14b5a1fc98dc"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14CudnnConvLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
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</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14CudnnConvLayer7forwardE8PassType">
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<span id="paddle::CudnnConvLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1CudnnConvLayer_1a5e672ef382be488f09a8138bb480d09e"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14CudnnConvLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14CudnnConvLayer8backwardERK14UpdateCallback">
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<span id="paddle::CudnnConvLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1CudnnConvLayer_1af651218b3f4c478ab334bfd9fcf73385"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14CudnnConvLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14CudnnConvLayer9addBiasesEv">
<span id="paddle::CudnnConvLayer::addBiases"></span><span class="target" id="paddleclasspaddle_1_1CudnnConvLayer_1a18beba9db318a2013eee4f0b1e08a1f2"></span>void <code class="descname">addBiases</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14CudnnConvLayer9addBiasesEv" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14CudnnConvLayer11bpropBiasesEv">
<span id="paddle::CudnnConvLayer::bpropBiases"></span><span class="target" id="paddleclasspaddle_1_1CudnnConvLayer_1a124b53adafeeead15d6380af2ec8e446"></span>void <code class="descname">bpropBiases</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14CudnnConvLayer11bpropBiasesEv" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
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<dt id="_CPPv2N6paddle14CudnnConvLayer9projConf_E">
<span id="paddle::CudnnConvLayer::projConf___std::vector:std::unique_ptr:ProjectionConfig::"></span><span class="target" id="paddleclasspaddle_1_1CudnnConvLayer_1a84970e8fdea3d8023c625aff058131ee"></span>std::vector&lt;std::unique_ptr&lt;ProjectionConfig&gt;&gt; <code class="descname">projConf_</code><a class="headerlink" href="#_CPPv2N6paddle14CudnnConvLayer9projConf_E" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="member">
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<dt id="_CPPv2N6paddle14CudnnConvLayer12projections_E">
<span id="paddle::CudnnConvLayer::projections___std::vector:std::unique_ptr:Projection::"></span><span class="target" id="paddleclasspaddle_1_1CudnnConvLayer_1acdbebf7644b45bbc55dcd374b8117e5d"></span>std::vector&lt;std::unique_ptr&lt;<a class="reference internal" href="#_CPPv2N6paddle10ProjectionE" title="paddle::Projection">Projection</a>&gt;&gt; <code class="descname">projections_</code><a class="headerlink" href="#_CPPv2N6paddle14CudnnConvLayer12projections_E" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14CudnnConvLayer9biasDesc_E">
<span id="paddle::CudnnConvLayer::biasDesc___hl_tensor_descriptor"></span><span class="target" id="paddleclasspaddle_1_1CudnnConvLayer_1a942f2de8279c3b518b4689f4213583a1"></span><a class="reference internal" href="../../cuda/cuda/cuda.html#_CPPv220hl_tensor_descriptor" title="hl_tensor_descriptor">hl_tensor_descriptor</a> <code class="descname">biasDesc_</code><a class="headerlink" href="#_CPPv2N6paddle14CudnnConvLayer9biasDesc_E" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>
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<dl class="member">
<dt id="_CPPv2N6paddle14CudnnConvLayer11outputDesc_E">
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<span id="paddle::CudnnConvLayer::outputDesc___hl_tensor_descriptor"></span><span class="target" id="paddleclasspaddle_1_1CudnnConvLayer_1aa08ac9daa92cbe29a09bdd7dfa2b7ce2"></span><a class="reference internal" href="../../cuda/cuda/cuda.html#_CPPv220hl_tensor_descriptor" title="hl_tensor_descriptor">hl_tensor_descriptor</a> <code class="descname">outputDesc_</code><a class="headerlink" href="#_CPPv2N6paddle14CudnnConvLayer11outputDesc_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
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<dl class="member">
<dt id="_CPPv2N6paddle14CudnnConvLayer11biasOffset_E">
<span id="paddle::CudnnConvLayer::biasOffset___i"></span><span class="target" id="paddleclasspaddle_1_1CudnnConvLayer_1a5ef79d1d36362c175a3fe59cd73a768c"></span>int <code class="descname">biasOffset_</code><a class="headerlink" href="#_CPPv2N6paddle14CudnnConvLayer11biasOffset_E" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>
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<dl class="member">
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<dt id="_CPPv2N6paddle14CudnnConvLayer13outputOffset_E">
<span id="paddle::CudnnConvLayer::outputOffset___i"></span><span class="target" id="paddleclasspaddle_1_1CudnnConvLayer_1a60498e440c9bc1674c3fc64329007feb"></span>int <code class="descname">outputOffset_</code><a class="headerlink" href="#_CPPv2N6paddle14CudnnConvLayer13outputOffset_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
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</div>
</dd></dl>

</div>
<div class="section" id="expandconvlayer">
<h2>ExpandConvLayer<a class="headerlink" href="#expandconvlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle15ExpandConvLayerE">
<span id="paddle::ExpandConvLayer"></span><span class="target" id="paddleclasspaddle_1_1ExpandConvLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">ExpandConvLayer</code><a class="headerlink" href="#_CPPv2N6paddle15ExpandConvLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>A subclass of convolution layer. This layer expands input and use matrix multiplication to calculate convolution operation. </p>
<p>The config file api is img_conv_layer. </p>
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<p>Inherits from paddle::ExpandConvBaseLayer</p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle15ExpandConvLayer15ExpandConvLayerERK11LayerConfig">
<span id="paddle::ExpandConvLayer::ExpandConvLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1ExpandConvLayer_1afc16f139f71c37ecbeecbcdc7aa15c7d"></span><code class="descname">ExpandConvLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15ExpandConvLayer15ExpandConvLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15ExpandConvLayerD0Ev">
<span id="paddle::ExpandConvLayer::~ExpandConvLayer"></span><span class="target" id="paddleclasspaddle_1_1ExpandConvLayer_1aeb7273d6aa85fa4e3bbdb2aa0eba8e57"></span><code class="descname">~ExpandConvLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15ExpandConvLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15ExpandConvLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::ExpandConvLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1ExpandConvLayer_1a047647d7879ec02aecdf0bef0779bdcf"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15ExpandConvLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15ExpandConvLayer7forwardE8PassType">
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<span id="paddle::ExpandConvLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1ExpandConvLayer_1afe70ec2d90ae387fb8fb50565cf81f1b"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15ExpandConvLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15ExpandConvLayer8backwardERK14UpdateCallback">
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<span id="paddle::ExpandConvLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1ExpandConvLayer_1a99be025975257a925a91a5f5120a1238"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15ExpandConvLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="contextprojection">
<h2>ContextProjection<a class="headerlink" href="#contextprojection" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle17ContextProjectionE">
<span id="paddle::ContextProjection"></span><span class="target" id="paddleclasspaddle_1_1ContextProjection"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">ContextProjection</code><a class="headerlink" href="#_CPPv2N6paddle17ContextProjectionE" title="Permalink to this definition">¶</a></dt>
<dd><p>Context projection concatenate features in adjacent time steps in a sequence. The i-th row of the output is the concatenation of context_length rows of the input. The context_length rows are the consecutive rows from the i+shift_start row. </p>
<p>For example, assumed input (x) has 4 words and the dimension of each word representation is 2. If we use zero to pad instead of learned weight to pad, and the context_lenth is 3, the output (y) is:</p>
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<p><div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">x</span> <span class="o">=</span> <span class="p">[</span><span class="n">a1</span><span class="p">,</span> <span class="n">a2</span><span class="p">;</span>
     <span class="n">b1</span><span class="p">,</span> <span class="n">b2</span><span class="p">;</span>
     <span class="n">c1</span><span class="p">,</span> <span class="n">c2</span><span class="p">;</span>
     <span class="n">d1</span><span class="p">,</span> <span class="n">d2</span><span class="p">]</span>
<span class="n">y</span> <span class="o">=</span> <span class="p">[</span><span class="mi">0</span><span class="p">,</span>  <span class="mi">0</span><span class="p">,</span>  <span class="n">a1</span><span class="p">,</span> <span class="n">a2</span><span class="p">,</span> <span class="n">b1</span><span class="p">,</span> <span class="n">b2</span><span class="p">;</span>
     <span class="n">a1</span><span class="p">,</span> <span class="n">a2</span><span class="p">,</span> <span class="n">b1</span><span class="p">,</span> <span class="n">b2</span><span class="p">,</span> <span class="n">c1</span><span class="p">,</span> <span class="n">c2</span><span class="p">;</span>
     <span class="n">b1</span><span class="p">,</span> <span class="n">b2</span><span class="p">,</span> <span class="n">c1</span><span class="p">,</span> <span class="n">c2</span><span class="p">,</span> <span class="n">d1</span><span class="p">,</span> <span class="n">d2</span><span class="p">;</span>
     <span class="n">c1</span><span class="p">,</span> <span class="n">c2</span><span class="p">,</span> <span class="n">d1</span><span class="p">,</span> <span class="n">d2</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span>  <span class="mi">0</span><span class="p">]</span>
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</pre></div>
</div>
</p>
<p>The config file api is context_projection. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Projection"><span class="std std-ref">paddle::Projection</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle17ContextProjection17ContextProjectionERK16ProjectionConfig12ParameterPtrb">
<span id="paddle::ContextProjection::ContextProjection__ProjectionConfigCR.ParameterPtr.b"></span><span class="target" id="paddleclasspaddle_1_1ContextProjection_1a21fdf30f1039e09d70b7a60dd8112c5f"></span><code class="descname">ContextProjection</code><span class="sig-paren">(</span><em class="property">const</em> ProjectionConfig &amp;<em>config</em>, <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterPtrE" title="paddle::ParameterPtr">ParameterPtr</a> <em>parameter</em>, bool <em>useGpu</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17ContextProjection17ContextProjectionERK16ProjectionConfig12ParameterPtrb" title="Permalink to this definition">¶</a></dt>
<dd><p>Constructor. If context_start is zero and context_lenth is one, it will set trainable_padding false. trainable_padding is an optional arguments and if it is set, constructor will set learned weight, which is used to pad output. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17ContextProjection7forwardEv">
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<span id="paddle::ContextProjection::forward"></span><span class="target" id="paddleclasspaddle_1_1ContextProjection_1aef0d11ba3ba4a8abb11344992389feb8"></span>void <code class="descname">forward</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17ContextProjection7forwardEv" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17ContextProjection8backwardERK14UpdateCallback">
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<span id="paddle::ContextProjection::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1ContextProjection_1a0dcf28dc9d52a00a1ce4d9532e62a512"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17ContextProjection8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17ContextProjection10resetStateEv">
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<span id="paddle::ContextProjection::resetState"></span><span class="target" id="paddleclasspaddle_1_1ContextProjection_1a80cdd8e8188127b4753b53ddc3f5a87d"></span>void <code class="descname">resetState</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17ContextProjection10resetStateEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>See comment in Layer.h for the function with the same name. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17ContextProjection8setStateE13LayerStatePtr">
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<span id="paddle::ContextProjection::setState__LayerStatePtr"></span><span class="target" id="paddleclasspaddle_1_1ContextProjection_1a40732861981b3fb596913f1df4dd78d6"></span>void <code class="descname">setState</code><span class="sig-paren">(</span>LayerStatePtr <em>state</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17ContextProjection8setStateE13LayerStatePtr" title="Permalink to this definition">¶</a></dt>
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<dd><p>Set layer state. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17ContextProjection8getStateEv">
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<span id="paddle::ContextProjection::getState"></span><span class="target" id="paddleclasspaddle_1_1ContextProjection_1a17c5468a8a29ca093672063f35d3c858"></span>LayerStatePtr <code class="descname">getState</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17ContextProjection8getStateEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>Get layer state. A copy of internal state is returned. </p>
</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle17ContextProjection7weight_E">
<span id="paddle::ContextProjection::weight___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1ContextProjection_1a790368ed34fc3109d3c01b64314fc991"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">weight_</code><a class="headerlink" href="#_CPPv2N6paddle17ContextProjection7weight_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle17ContextProjection9beginPad_E">
<span id="paddle::ContextProjection::beginPad___s"></span><span class="target" id="paddleclasspaddle_1_1ContextProjection_1a62de14463212044c2bb65aec28f8bf19"></span>size_t <code class="descname">beginPad_</code><a class="headerlink" href="#_CPPv2N6paddle17ContextProjection9beginPad_E" title="Permalink to this definition">¶</a></dt>
<dd><p>number of extra timesteps added at the beginning </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle17ContextProjection7endPad_E">
<span id="paddle::ContextProjection::endPad___s"></span><span class="target" id="paddleclasspaddle_1_1ContextProjection_1a35b41b56daf3b0b2f735e95c5150aa61"></span>size_t <code class="descname">endPad_</code><a class="headerlink" href="#_CPPv2N6paddle17ContextProjection7endPad_E" title="Permalink to this definition">¶</a></dt>
<dd><p>number of extra timesteps added at the end </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle17ContextProjection6state_E">
<span id="paddle::ContextProjection::state___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1ContextProjection_1aa52263a4813b31b3b2428dfd73cace68"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">state_</code><a class="headerlink" href="#_CPPv2N6paddle17ContextProjection6state_E" title="Permalink to this definition">¶</a></dt>
<dd><p>state_ and state2_ are used in sequence generating and saved previous inputs. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle17ContextProjection7state2_E">
<span id="paddle::ContextProjection::state2___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1ContextProjection_1a249368ba2a1cdb2e383dd70232058d2a"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">state2_</code><a class="headerlink" href="#_CPPv2N6paddle17ContextProjection7state2_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
</div>
<div class="section" id="pooling-layers">
<h1>Pooling Layers<a class="headerlink" href="#pooling-layers" title="Permalink to this headline">¶</a></h1>
<div class="section" id="poollayer">
<h2>PoolLayer<a class="headerlink" href="#poollayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle9PoolLayerE">
<span id="paddle::PoolLayer"></span><span class="target" id="paddleclasspaddle_1_1PoolLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">PoolLayer</code><a class="headerlink" href="#_CPPv2N6paddle9PoolLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>Basic parent layer of pooling Pools the input within regions. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
<p>Subclassed by <a class="reference internal" href="#paddleclasspaddle_1_1CudnnPoolLayer"><span class="std std-ref">paddle::CudnnPoolLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1PoolProjectionLayer"><span class="std std-ref">paddle::PoolProjectionLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle9PoolLayer9PoolLayerERK11LayerConfig">
<span id="paddle::PoolLayer::PoolLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1PoolLayer_1a4b3e150709ea27a242768e83777539f8"></span><code class="descname">PoolLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9PoolLayer9PoolLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle9PoolLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::PoolLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1PoolLayer_1ac9e9c312be98fa3ecf488ced05bbb977"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9PoolLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Static Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle9PoolLayer6createERK11LayerConfig">
<span id="paddle::PoolLayer::create__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1PoolLayer_1ad69afd6a709d60fde8a7ef8e75ea83a1"></span><a class="reference internal" href="#_CPPv2N6paddle5LayerE" title="paddle::Layer">Layer</a> *<code class="descname">create</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9PoolLayer6createERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
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<dd><p>create pooling layer by pool_type </p>
</dd></dl>
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</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle9PoolLayer9channels_E">
<span id="paddle::PoolLayer::channels___s"></span><span class="target" id="paddleclasspaddle_1_1PoolLayer_1a31d38e37618cf4776529e38f0a099a4f"></span>size_t <code class="descname">channels_</code><a class="headerlink" href="#_CPPv2N6paddle9PoolLayer9channels_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle9PoolLayer6sizeX_E">
<span id="paddle::PoolLayer::sizeX___s"></span><span class="target" id="paddleclasspaddle_1_1PoolLayer_1a7fbab065d1e9c76e47caa924ad7418db"></span>size_t <code class="descname">sizeX_</code><a class="headerlink" href="#_CPPv2N6paddle9PoolLayer6sizeX_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle9PoolLayer7stride_E">
<span id="paddle::PoolLayer::stride___s"></span><span class="target" id="paddleclasspaddle_1_1PoolLayer_1a75b2745a7b3c7a3844f6864838e57923"></span>size_t <code class="descname">stride_</code><a class="headerlink" href="#_CPPv2N6paddle9PoolLayer7stride_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle9PoolLayer8outputX_E">
<span id="paddle::PoolLayer::outputX___s"></span><span class="target" id="paddleclasspaddle_1_1PoolLayer_1a1655c5b737741493c8c457ca1558d330"></span>size_t <code class="descname">outputX_</code><a class="headerlink" href="#_CPPv2N6paddle9PoolLayer8outputX_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle9PoolLayer8imgSize_E">
<span id="paddle::PoolLayer::imgSize___s"></span><span class="target" id="paddleclasspaddle_1_1PoolLayer_1a34f5c074e7b51c3b1c726007f995a165"></span>size_t <code class="descname">imgSize_</code><a class="headerlink" href="#_CPPv2N6paddle9PoolLayer8imgSize_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle9PoolLayer12confPadding_E">
<span id="paddle::PoolLayer::confPadding___i"></span><span class="target" id="paddleclasspaddle_1_1PoolLayer_1a19e5291d78949982dc1f34380a18a6eb"></span>int <code class="descname">confPadding_</code><a class="headerlink" href="#_CPPv2N6paddle9PoolLayer12confPadding_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle9PoolLayer6sizeY_E">
<span id="paddle::PoolLayer::sizeY___s"></span><span class="target" id="paddleclasspaddle_1_1PoolLayer_1ab5939dec99220612cacdedaa183c30b6"></span>size_t <code class="descname">sizeY_</code><a class="headerlink" href="#_CPPv2N6paddle9PoolLayer6sizeY_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle9PoolLayer9imgSizeY_E">
<span id="paddle::PoolLayer::imgSizeY___s"></span><span class="target" id="paddleclasspaddle_1_1PoolLayer_1a7e16a82714e0f1e53aca321142117d51"></span>size_t <code class="descname">imgSizeY_</code><a class="headerlink" href="#_CPPv2N6paddle9PoolLayer9imgSizeY_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle9PoolLayer8strideY_E">
<span id="paddle::PoolLayer::strideY___s"></span><span class="target" id="paddleclasspaddle_1_1PoolLayer_1a16bba2ca85415e7ec6a95d38a5198ba3"></span>size_t <code class="descname">strideY_</code><a class="headerlink" href="#_CPPv2N6paddle9PoolLayer8strideY_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle9PoolLayer8outputY_E">
<span id="paddle::PoolLayer::outputY___s"></span><span class="target" id="paddleclasspaddle_1_1PoolLayer_1a287f6392713f222608f56a06c1abb7ab"></span>size_t <code class="descname">outputY_</code><a class="headerlink" href="#_CPPv2N6paddle9PoolLayer8outputY_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle9PoolLayer13confPaddingY_E">
<span id="paddle::PoolLayer::confPaddingY___i"></span><span class="target" id="paddleclasspaddle_1_1PoolLayer_1a8d7e36004a3968a3b5bad59050ccf126"></span>int <code class="descname">confPaddingY_</code><a class="headerlink" href="#_CPPv2N6paddle9PoolLayer13confPaddingY_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle9PoolLayer9poolType_E">
<span id="paddle::PoolLayer::poolType___ss"></span><span class="target" id="paddleclasspaddle_1_1PoolLayer_1a90f8486c1a4bc30f5c832ab1649e9b0b"></span>std::string <code class="descname">poolType_</code><a class="headerlink" href="#_CPPv2N6paddle9PoolLayer9poolType_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="poolprojectionlayer">
<h2>PoolProjectionLayer<a class="headerlink" href="#poolprojectionlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle19PoolProjectionLayerE">
<span id="paddle::PoolProjectionLayer"></span><span class="target" id="paddleclasspaddle_1_1PoolProjectionLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">PoolProjectionLayer</code><a class="headerlink" href="#_CPPv2N6paddle19PoolProjectionLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>Basic parent layer of different kinds of pooling. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1PoolLayer"><span class="std std-ref">paddle::PoolLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
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<dl class="function">
<dt id="_CPPv2N6paddle19PoolProjectionLayer19PoolProjectionLayerERK11LayerConfig">
<span id="paddle::PoolProjectionLayer::PoolProjectionLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1PoolProjectionLayer_1af46e7f9cd3553967c6a3a64b1716a005"></span><code class="descname">PoolProjectionLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19PoolProjectionLayer19PoolProjectionLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

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<dl class="function">
<dt id="_CPPv2N6paddle19PoolProjectionLayer7getSizeEv">
<span id="paddle::PoolProjectionLayer::getSize"></span><span class="target" id="paddleclasspaddle_1_1PoolProjectionLayer_1ac306bb96802d0d0593880c5074cf5aaa"></span>size_t <code class="descname">getSize</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19PoolProjectionLayer7getSizeEv" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
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<dt id="_CPPv2N6paddle19PoolProjectionLayer7forwardE8PassType">
<span id="paddle::PoolProjectionLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1PoolProjectionLayer_1a99a71b042eed74988c355517c6e94f96"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19PoolProjectionLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19PoolProjectionLayer8backwardERK14UpdateCallback">
<span id="paddle::PoolProjectionLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1PoolProjectionLayer_1a393516f9f30850e06181682a3df9763d"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19PoolProjectionLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
</dd></dl>
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</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle19PoolProjectionLayer9imgSizeH_E">
<span id="paddle::PoolProjectionLayer::imgSizeH___s"></span><span class="target" id="paddleclasspaddle_1_1PoolProjectionLayer_1a17021c1f996a09d557a5339efeaa5793"></span>size_t <code class="descname">imgSizeH_</code><a class="headerlink" href="#_CPPv2N6paddle19PoolProjectionLayer9imgSizeH_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle19PoolProjectionLayer9imgSizeW_E">
<span id="paddle::PoolProjectionLayer::imgSizeW___s"></span><span class="target" id="paddleclasspaddle_1_1PoolProjectionLayer_1ae1b5fde48f09a89cb265104b7b701391"></span>size_t <code class="descname">imgSizeW_</code><a class="headerlink" href="#_CPPv2N6paddle19PoolProjectionLayer9imgSizeW_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle19PoolProjectionLayer8outputH_E">
<span id="paddle::PoolProjectionLayer::outputH___s"></span><span class="target" id="paddleclasspaddle_1_1PoolProjectionLayer_1a3b0a5d7eff13f01bc3215dce6ad60a0c"></span>size_t <code class="descname">outputH_</code><a class="headerlink" href="#_CPPv2N6paddle19PoolProjectionLayer8outputH_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle19PoolProjectionLayer8outputW_E">
<span id="paddle::PoolProjectionLayer::outputW___s"></span><span class="target" id="paddleclasspaddle_1_1PoolProjectionLayer_1a1632e7adfe9d71bc2478e29fd701140d"></span>size_t <code class="descname">outputW_</code><a class="headerlink" href="#_CPPv2N6paddle19PoolProjectionLayer8outputW_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

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<dl class="member">
<dt id="_CPPv2N6paddle19PoolProjectionLayer15poolProjection_E">
<span id="paddle::PoolProjectionLayer::poolProjection___std::unique_ptr:PoolProjection:"></span><span class="target" id="paddleclasspaddle_1_1PoolProjectionLayer_1ab50eafa70ac490d3bb69533c6c377f2d"></span>std::unique_ptr&lt;PoolProjection&gt; <code class="descname">poolProjection_</code><a class="headerlink" href="#_CPPv2N6paddle19PoolProjectionLayer15poolProjection_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle19PoolProjectionLayer17projectionConfig_E">
<span id="paddle::PoolProjectionLayer::projectionConfig___ProjectionConfig"></span><span class="target" id="paddleclasspaddle_1_1PoolProjectionLayer_1af004ec42a1a61bb17a6244e571f28da0"></span>ProjectionConfig <code class="descname">projectionConfig_</code><a class="headerlink" href="#_CPPv2N6paddle19PoolProjectionLayer17projectionConfig_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

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</div>
</dd></dl>

</div>
<div class="section" id="cudnnpoollayer">
<h2>CudnnPoolLayer<a class="headerlink" href="#cudnnpoollayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle14CudnnPoolLayerE">
<span id="paddle::CudnnPoolLayer"></span><span class="target" id="paddleclasspaddle_1_1CudnnPoolLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">CudnnPoolLayer</code><a class="headerlink" href="#_CPPv2N6paddle14CudnnPoolLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p><a class="reference internal" href="#paddleclasspaddle_1_1CudnnPoolLayer"><span class="std std-ref">CudnnPoolLayer</span></a> is subclass of <a class="reference internal" href="#paddleclasspaddle_1_1PoolLayer"><span class="std std-ref">PoolLayer</span></a>, which is implemented by cudnn api and only supports GPU. </p>
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<p>The config file api is img_pool_layer. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1PoolLayer"><span class="std std-ref">paddle::PoolLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle14CudnnPoolLayer14CudnnPoolLayerERK11LayerConfig">
<span id="paddle::CudnnPoolLayer::CudnnPoolLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1CudnnPoolLayer_1a9a6428f2818a6b81b3c684c080eef873"></span><code class="descname">CudnnPoolLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14CudnnPoolLayer14CudnnPoolLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14CudnnPoolLayerD0Ev">
<span id="paddle::CudnnPoolLayer::~CudnnPoolLayer"></span><span class="target" id="paddleclasspaddle_1_1CudnnPoolLayer_1a08166c02732c3a1264bb21f53b61699b"></span><code class="descname">~CudnnPoolLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14CudnnPoolLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14CudnnPoolLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::CudnnPoolLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1CudnnPoolLayer_1af6aff9ec69cc2d0e176dd5ac7942ff84"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14CudnnPoolLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14CudnnPoolLayer7reshapeEi">
<span id="paddle::CudnnPoolLayer::reshape__i"></span><span class="target" id="paddleclasspaddle_1_1CudnnPoolLayer_1ae7a012b45bfa54d4c03ecbee4ba57067"></span>void <code class="descname">reshape</code><span class="sig-paren">(</span>int <em>batchSize</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14CudnnPoolLayer7reshapeEi" title="Permalink to this definition">¶</a></dt>
<dd><p>Reshape input and output tensor descriptor. The batch size maybe change during training in last batch of each pass. So reshaping is needed. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14CudnnPoolLayer7forwardE8PassType">
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<span id="paddle::CudnnPoolLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1CudnnPoolLayer_1a38e20f0170b3be4a6c51b8e10c1ef8d0"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14CudnnPoolLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14CudnnPoolLayer8backwardERK14UpdateCallback">
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<span id="paddle::CudnnPoolLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1CudnnPoolLayer_1affeb9d7a007856660977078c58a00b1a"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14CudnnPoolLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Static Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle14CudnnPoolLayer9typeCheckERKNSt6stringEP17hl_pooling_mode_t">
<span id="paddle::CudnnPoolLayer::typeCheck__ssCR.hl_pooling_mode_tP"></span><span class="target" id="paddleclasspaddle_1_1CudnnPoolLayer_1a9cb284d7cc6f1cf26d670f4fa8d9c6ca"></span>bool <code class="descname">typeCheck</code><span class="sig-paren">(</span><em class="property">const</em> std::string &amp;<em>poolType</em>, <a class="reference internal" href="../../cuda/cuda/cuda.html#_CPPv217hl_pooling_mode_t" title="hl_pooling_mode_t">hl_pooling_mode_t</a> *<em>mode</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14CudnnPoolLayer9typeCheckERKNSt6stringEP17hl_pooling_mode_t" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle14CudnnPoolLayer12windowHeightE">
<span id="paddle::CudnnPoolLayer::windowHeight__i"></span><span class="target" id="paddleclasspaddle_1_1CudnnPoolLayer_1a78ac69a7dffb621ad913cfbd1697813b"></span>int <code class="descname">windowHeight</code><a class="headerlink" href="#_CPPv2N6paddle14CudnnPoolLayer12windowHeightE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14CudnnPoolLayer11windowWidthE">
<span id="paddle::CudnnPoolLayer::windowWidth__i"></span><span class="target" id="paddleclasspaddle_1_1CudnnPoolLayer_1a708157ba91e51ad2ba6543375fa54b53"></span>int <code class="descname">windowWidth</code><a class="headerlink" href="#_CPPv2N6paddle14CudnnPoolLayer11windowWidthE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14CudnnPoolLayer13heightPaddingE">
<span id="paddle::CudnnPoolLayer::heightPadding__i"></span><span class="target" id="paddleclasspaddle_1_1CudnnPoolLayer_1a0235cbc3812ca494d90d61698cf8d284"></span>int <code class="descname">heightPadding</code><a class="headerlink" href="#_CPPv2N6paddle14CudnnPoolLayer13heightPaddingE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14CudnnPoolLayer12widthPaddingE">
<span id="paddle::CudnnPoolLayer::widthPadding__i"></span><span class="target" id="paddleclasspaddle_1_1CudnnPoolLayer_1a46f1de94d3b376f6407ae464a09b6d53"></span>int <code class="descname">widthPadding</code><a class="headerlink" href="#_CPPv2N6paddle14CudnnPoolLayer12widthPaddingE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14CudnnPoolLayer12strideHeightE">
<span id="paddle::CudnnPoolLayer::strideHeight__i"></span><span class="target" id="paddleclasspaddle_1_1CudnnPoolLayer_1a27fbdabf4c2f07fc65e9f8b029587bf6"></span>int <code class="descname">strideHeight</code><a class="headerlink" href="#_CPPv2N6paddle14CudnnPoolLayer12strideHeightE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14CudnnPoolLayer11strideWidthE">
<span id="paddle::CudnnPoolLayer::strideWidth__i"></span><span class="target" id="paddleclasspaddle_1_1CudnnPoolLayer_1a4405ea2b98e926cb6f27d211918a3692"></span>int <code class="descname">strideWidth</code><a class="headerlink" href="#_CPPv2N6paddle14CudnnPoolLayer11strideWidthE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14CudnnPoolLayer7imageH_E">
<span id="paddle::CudnnPoolLayer::imageH___i"></span><span class="target" id="paddleclasspaddle_1_1CudnnPoolLayer_1a96a3a7fd3ed851d96a0fffb6f0409c21"></span>int <code class="descname">imageH_</code><a class="headerlink" href="#_CPPv2N6paddle14CudnnPoolLayer7imageH_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14CudnnPoolLayer7imageW_E">
<span id="paddle::CudnnPoolLayer::imageW___i"></span><span class="target" id="paddleclasspaddle_1_1CudnnPoolLayer_1a99dc2b3c45b732e08f7fb4c20f66d632"></span>int <code class="descname">imageW_</code><a class="headerlink" href="#_CPPv2N6paddle14CudnnPoolLayer7imageW_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14CudnnPoolLayer8outputH_E">
<span id="paddle::CudnnPoolLayer::outputH___i"></span><span class="target" id="paddleclasspaddle_1_1CudnnPoolLayer_1aebfb6275eb493e6e85f6be785ab53196"></span>int <code class="descname">outputH_</code><a class="headerlink" href="#_CPPv2N6paddle14CudnnPoolLayer8outputH_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14CudnnPoolLayer8outputW_E">
<span id="paddle::CudnnPoolLayer::outputW___i"></span><span class="target" id="paddleclasspaddle_1_1CudnnPoolLayer_1a47dcb10eebad67cb13d6f9e2d10d73e5"></span>int <code class="descname">outputW_</code><a class="headerlink" href="#_CPPv2N6paddle14CudnnPoolLayer8outputW_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14CudnnPoolLayer5mode_E">
<span id="paddle::CudnnPoolLayer::mode___hl_pooling_mode_t"></span><span class="target" id="paddleclasspaddle_1_1CudnnPoolLayer_1a6c4ddcf77f9aa2eb39f1c0cd972f3da7"></span><a class="reference internal" href="../../cuda/cuda/cuda.html#_CPPv217hl_pooling_mode_t" title="hl_pooling_mode_t">hl_pooling_mode_t</a> <code class="descname">mode_</code><a class="headerlink" href="#_CPPv2N6paddle14CudnnPoolLayer5mode_E" title="Permalink to this definition">¶</a></dt>
<dd><p>mode_ is poolint type, inlcuding &#8220;cudnn-max-pool&#8221;, &#8220;cudnn-avg-pool&#8221; &#8220;cudnn-avg-excl-pad-pool&#8221;. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14CudnnPoolLayer10inputDesc_E">
<span id="paddle::CudnnPoolLayer::inputDesc___hl_tensor_descriptor"></span><span class="target" id="paddleclasspaddle_1_1CudnnPoolLayer_1afc9d2cb10982c9e3fd2a16c83c8748c8"></span><a class="reference internal" href="../../cuda/cuda/cuda.html#_CPPv220hl_tensor_descriptor" title="hl_tensor_descriptor">hl_tensor_descriptor</a> <code class="descname">inputDesc_</code><a class="headerlink" href="#_CPPv2N6paddle14CudnnPoolLayer10inputDesc_E" title="Permalink to this definition">¶</a></dt>
<dd><p>cudnn tensor descriptor for input. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14CudnnPoolLayer11outputDesc_E">
<span id="paddle::CudnnPoolLayer::outputDesc___hl_tensor_descriptor"></span><span class="target" id="paddleclasspaddle_1_1CudnnPoolLayer_1a4f1892d83ebe3a6203957735bae69f72"></span><a class="reference internal" href="../../cuda/cuda/cuda.html#_CPPv220hl_tensor_descriptor" title="hl_tensor_descriptor">hl_tensor_descriptor</a> <code class="descname">outputDesc_</code><a class="headerlink" href="#_CPPv2N6paddle14CudnnPoolLayer11outputDesc_E" title="Permalink to this definition">¶</a></dt>
<dd><p>cudnn tensor descriptor for output. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14CudnnPoolLayer12poolingDesc_E">
<span id="paddle::CudnnPoolLayer::poolingDesc___hl_pooling_descriptor"></span><span class="target" id="paddleclasspaddle_1_1CudnnPoolLayer_1a72771ddd292a4670436c9b2d1cbef102"></span><a class="reference internal" href="../../cuda/cuda/cuda.html#_CPPv221hl_pooling_descriptor" title="hl_pooling_descriptor">hl_pooling_descriptor</a> <code class="descname">poolingDesc_</code><a class="headerlink" href="#_CPPv2N6paddle14CudnnPoolLayer12poolingDesc_E" title="Permalink to this definition">¶</a></dt>
<dd><p>A description of a pooling operation. </p>
</dd></dl>

</div>
</dd></dl>

</div>
</div>
<div class="section" id="norm-layers">
<h1>Norm Layers<a class="headerlink" href="#norm-layers" title="Permalink to this headline">¶</a></h1>
<div class="section" id="normlayer">
<h2>NormLayer<a class="headerlink" href="#normlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle9NormLayerE">
<span id="paddle::NormLayer"></span><span class="target" id="paddleclasspaddle_1_1NormLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">NormLayer</code><a class="headerlink" href="#_CPPv2N6paddle9NormLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>Basic parent layer of normalization. </p>
<p><dl class="docutils">
<dt><strong>Note</strong></dt>
<dd>Normalize the input in local region </dd>
</dl>
</p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
<p>Subclassed by <a class="reference internal" href="#paddleclasspaddle_1_1ResponseNormLayer"><span class="std std-ref">paddle::ResponseNormLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle9NormLayer9NormLayerERK11LayerConfig">
<span id="paddle::NormLayer::NormLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1NormLayer_1a4e885116a77dc19e8d395113eb3e3911"></span><code class="descname">NormLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9NormLayer9NormLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle9NormLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::NormLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1NormLayer_1a025d26036f9e2d1f33e59609ecf8b065"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9NormLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Static Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle9NormLayer6createERK11LayerConfig">
<span id="paddle::NormLayer::create__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1NormLayer_1a9f2c69926802b77b0ffa66d2c076210e"></span><a class="reference internal" href="#_CPPv2N6paddle5LayerE" title="paddle::Layer">Layer</a> *<code class="descname">create</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9NormLayer6createERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
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<dd><p>create norm layer by norm_type </p>
</dd></dl>
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</div>
</dd></dl>

</div>
<div class="section" id="cmrprojectionnormlayer">
<h2>CMRProjectionNormLayer<a class="headerlink" href="#cmrprojectionnormlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle22CMRProjectionNormLayerE">
<span id="paddle::CMRProjectionNormLayer"></span><span class="target" id="paddleclasspaddle_1_1CMRProjectionNormLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">CMRProjectionNormLayer</code><a class="headerlink" href="#_CPPv2N6paddle22CMRProjectionNormLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>response normalization across feature maps namely normalize in number of size_ channels </p>
1860
<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1ResponseNormLayer"><span class="std std-ref">paddle::ResponseNormLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle22CMRProjectionNormLayer22CMRProjectionNormLayerERK11LayerConfig">
<span id="paddle::CMRProjectionNormLayer::CMRProjectionNormLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1CMRProjectionNormLayer_1a625bbf7c72344945d9c03e13a64c1789"></span><code class="descname">CMRProjectionNormLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle22CMRProjectionNormLayer22CMRProjectionNormLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle22CMRProjectionNormLayerD0Ev">
<span id="paddle::CMRProjectionNormLayer::~CMRProjectionNormLayer"></span><span class="target" id="paddleclasspaddle_1_1CMRProjectionNormLayer_1a6b37bb539fa1770dcc66100a1f075a86"></span><code class="descname">~CMRProjectionNormLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle22CMRProjectionNormLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle22CMRProjectionNormLayer7getSizeEv">
<span id="paddle::CMRProjectionNormLayer::getSize"></span><span class="target" id="paddleclasspaddle_1_1CMRProjectionNormLayer_1aa8d61e88bae094ee2e35560878963d59"></span>size_t <code class="descname">getSize</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle22CMRProjectionNormLayer7getSizeEv" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle22CMRProjectionNormLayer4initERK8LayerMapRK12ParameterMap">
1880
<span id="paddle::CMRProjectionNormLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1CMRProjectionNormLayer_1a3a38af8ae7aeb4ff42033025ac6bf0c8"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle22CMRProjectionNormLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle22CMRProjectionNormLayer7forwardE8PassType">
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<span id="paddle::CMRProjectionNormLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1CMRProjectionNormLayer_1a6ea79cd51a852723bce9b06442108f6b"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle22CMRProjectionNormLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle22CMRProjectionNormLayer8backwardERK14UpdateCallback">
1892
<span id="paddle::CMRProjectionNormLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1CMRProjectionNormLayer_1a8b9e55ca5ae723e98eeac4eea8af34ba"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle22CMRProjectionNormLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
1893
<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="datanormlayer">
<h2>DataNormLayer<a class="headerlink" href="#datanormlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle13DataNormLayerE">
<span id="paddle::DataNormLayer"></span><span class="target" id="paddleclasspaddle_1_1DataNormLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">DataNormLayer</code><a class="headerlink" href="#_CPPv2N6paddle13DataNormLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>A layer for data normalization. </p>
<p><ul class="simple">
1907
<li>Input: One and only one input layer is accepted. The input layer must be <a class="reference internal" href="#paddleclasspaddle_1_1DataLayer"><span class="std std-ref">DataLayer</span></a> with dense data type.</li>
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<li>Output: The normalization of the input data</li>
</ul>
</p>
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<p>Reference: LA Shalabi, Z Shaaban, B Kasasbeh. Data mining: A preprocessing engine</p>
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<p>Three data normalization methoeds are considered<ul class="simple">
<li>z-score: y = (x-mean)/std</li>
<li>min-max: y = (x-min)/(max-min)</li>
<li>decimal-scaling: y = x/10^j, where j is the smallest integer such that max(|y|)&lt;1 </li>
</ul>
</p>
1918
<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Types</p>
<dl class="type">
<dt id="_CPPv2N6paddle13DataNormLayer21NormalizationStrategyE">
<span id="paddle::DataNormLayer::NormalizationStrategy"></span><span class="target" id="paddleclasspaddle_1_1DataNormLayer_1ab121c7bcab217a1752c04be07868de01"></span><em class="property">enum </em><code class="descname">NormalizationStrategy</code><a class="headerlink" href="#_CPPv2N6paddle13DataNormLayer21NormalizationStrategyE" title="Permalink to this definition">¶</a></dt>
<dd><p><em>Values:</em></p>
<dl class="member">
<dt id="_CPPv2N6paddle13DataNormLayer7kZScoreE">
<span id="paddle::DataNormLayer::kZScore"></span><span class="target" id="paddleclasspaddle_1_1DataNormLayer_1ab121c7bcab217a1752c04be07868de01abb75d9472ac61829e3cae5fcc1c0110c"></span><code class="descname">kZScore</code> = 0<a class="headerlink" href="#_CPPv2N6paddle13DataNormLayer7kZScoreE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13DataNormLayer7kMinMaxE">
<span id="paddle::DataNormLayer::kMinMax"></span><span class="target" id="paddleclasspaddle_1_1DataNormLayer_1ab121c7bcab217a1752c04be07868de01a93526d48241a9a59bbdba8f37fabfd81"></span><code class="descname">kMinMax</code> = 1<a class="headerlink" href="#_CPPv2N6paddle13DataNormLayer7kMinMaxE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13DataNormLayer15kDecimalScalingE">
<span id="paddle::DataNormLayer::kDecimalScaling"></span><span class="target" id="paddleclasspaddle_1_1DataNormLayer_1ab121c7bcab217a1752c04be07868de01ae52892db2a3d579bec5ba6ea49800fea"></span><code class="descname">kDecimalScaling</code> = 2<a class="headerlink" href="#_CPPv2N6paddle13DataNormLayer15kDecimalScalingE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle13DataNormLayer13DataNormLayerERK11LayerConfig">
<span id="paddle::DataNormLayer::DataNormLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1DataNormLayer_1a624abef89a478b482210cda76f784c5d"></span><code class="descname">DataNormLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13DataNormLayer13DataNormLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13DataNormLayerD0Ev">
<span id="paddle::DataNormLayer::~DataNormLayer"></span><span class="target" id="paddleclasspaddle_1_1DataNormLayer_1ae82492ea406a21e939b687311cb27ddd"></span><code class="descname">~DataNormLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13DataNormLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13DataNormLayer4initERK8LayerMapRK12ParameterMap">
1957
<span id="paddle::DataNormLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1DataNormLayer_1a2914e9d137538fed1ac55ffa6f091509"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13DataNormLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13DataNormLayer7forwardE8PassType">
1963
<span id="paddle::DataNormLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1DataNormLayer_1aa2fdfc0a29fe2915db6f6eac4ebd30ed"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13DataNormLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13DataNormLayer8backwardERK14UpdateCallback">
1969
<span id="paddle::DataNormLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1DataNormLayer_1ad35b356e2f9f73f02ae4dd3133d5a988"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13DataNormLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
1970
<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle13DataNormLayer5mode_E">
<span id="paddle::DataNormLayer::mode___i"></span><span class="target" id="paddleclasspaddle_1_1DataNormLayer_1a3365969ca156c0ab1f9878cf626b9c4a"></span>int <code class="descname">mode_</code><a class="headerlink" href="#_CPPv2N6paddle13DataNormLayer5mode_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13DataNormLayer7weight_E">
<span id="paddle::DataNormLayer::weight___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1DataNormLayer_1a4aaf965175948e20183cd57f29960b65"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">weight_</code><a class="headerlink" href="#_CPPv2N6paddle13DataNormLayer7weight_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13DataNormLayer4min_E">
<span id="paddle::DataNormLayer::min___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1DataNormLayer_1af31f85c2e566211fa6709af26b538c62"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">min_</code><a class="headerlink" href="#_CPPv2N6paddle13DataNormLayer4min_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13DataNormLayer16rangeReciprocal_E">
<span id="paddle::DataNormLayer::rangeReciprocal___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1DataNormLayer_1a93118c1db842c2651ff3275d86b55a5a"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">rangeReciprocal_</code><a class="headerlink" href="#_CPPv2N6paddle13DataNormLayer16rangeReciprocal_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13DataNormLayer5mean_E">
<span id="paddle::DataNormLayer::mean___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1DataNormLayer_1a6571364ab0a6408010bf33749f7b8fee"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">mean_</code><a class="headerlink" href="#_CPPv2N6paddle13DataNormLayer5mean_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13DataNormLayer14stdReciprocal_E">
<span id="paddle::DataNormLayer::stdReciprocal___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1DataNormLayer_1a6c4abdf413037a9f8030f1d4fcd7bced"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">stdReciprocal_</code><a class="headerlink" href="#_CPPv2N6paddle13DataNormLayer14stdReciprocal_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13DataNormLayer18decimalReciprocal_E">
<span id="paddle::DataNormLayer::decimalReciprocal___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1DataNormLayer_1acbfe9aebcc49dbca6de0be1b76ae9d94"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">decimalReciprocal_</code><a class="headerlink" href="#_CPPv2N6paddle13DataNormLayer18decimalReciprocal_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="responsenormlayer">
<h2>ResponseNormLayer<a class="headerlink" href="#responsenormlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle17ResponseNormLayerE">
<span id="paddle::ResponseNormLayer"></span><span class="target" id="paddleclasspaddle_1_1ResponseNormLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">ResponseNormLayer</code><a class="headerlink" href="#_CPPv2N6paddle17ResponseNormLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>response normalization within feature maps namely normalize in independent channel When code refactoring, we delete the original implementation. Need to implement in the futrue. </p>
2021 2022
<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1NormLayer"><span class="std std-ref">paddle::NormLayer</span></a></p>
<p>Subclassed by <a class="reference internal" href="#paddleclasspaddle_1_1CMRProjectionNormLayer"><span class="std std-ref">paddle::CMRProjectionNormLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle17ResponseNormLayer17ResponseNormLayerERK11LayerConfig">
<span id="paddle::ResponseNormLayer::ResponseNormLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1ResponseNormLayer_1abd7ce981b0ac81ba7a5f1d8a2352e86d"></span><code class="descname">ResponseNormLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17ResponseNormLayer17ResponseNormLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17ResponseNormLayer4initERK8LayerMapRK12ParameterMap">
2032
<span id="paddle::ResponseNormLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1ResponseNormLayer_1af2df968587c7982df9a138004f9a5683"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17ResponseNormLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17ResponseNormLayer7forwardE8PassType">
2038
<span id="paddle::ResponseNormLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1ResponseNormLayer_1a60c7484303bef1b1e70c0ee735ef09a7"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17ResponseNormLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17ResponseNormLayer8backwardERK14UpdateCallback">
2044
<span id="paddle::ResponseNormLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1ResponseNormLayer_1a3e729246aae29ce23a9e958420f01bfd"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17ResponseNormLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
2045
<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle17ResponseNormLayer9channels_E">
<span id="paddle::ResponseNormLayer::channels___s"></span><span class="target" id="paddleclasspaddle_1_1ResponseNormLayer_1a45f0a5427d5d8ee93b9bd9730b33fc1b"></span>size_t <code class="descname">channels_</code><a class="headerlink" href="#_CPPv2N6paddle17ResponseNormLayer9channels_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle17ResponseNormLayer5size_E">
<span id="paddle::ResponseNormLayer::size___s"></span><span class="target" id="paddleclasspaddle_1_1ResponseNormLayer_1a1ac00a547cc7b8b9e0062966ff50c33e"></span>size_t <code class="descname">size_</code><a class="headerlink" href="#_CPPv2N6paddle17ResponseNormLayer5size_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle17ResponseNormLayer8outputX_E">
<span id="paddle::ResponseNormLayer::outputX___s"></span><span class="target" id="paddleclasspaddle_1_1ResponseNormLayer_1a9829279a9cf0ce34a25e941cea49955d"></span>size_t <code class="descname">outputX_</code><a class="headerlink" href="#_CPPv2N6paddle17ResponseNormLayer8outputX_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle17ResponseNormLayer8imgSize_E">
<span id="paddle::ResponseNormLayer::imgSize___s"></span><span class="target" id="paddleclasspaddle_1_1ResponseNormLayer_1aba80dace8a7bfb8c01c5bbdf9e60ef21"></span>size_t <code class="descname">imgSize_</code><a class="headerlink" href="#_CPPv2N6paddle17ResponseNormLayer8imgSize_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle17ResponseNormLayer6scale_E">
<span id="paddle::ResponseNormLayer::scale___float"></span><span class="target" id="paddleclasspaddle_1_1ResponseNormLayer_1aa163ffa3ed15d6a86bcaff8f60f57e09"></span>float <code class="descname">scale_</code><a class="headerlink" href="#_CPPv2N6paddle17ResponseNormLayer6scale_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle17ResponseNormLayer4pow_E">
<span id="paddle::ResponseNormLayer::pow___float"></span><span class="target" id="paddleclasspaddle_1_1ResponseNormLayer_1ab376e51a1209d1afff2f6fcfb941069d"></span>float <code class="descname">pow_</code><a class="headerlink" href="#_CPPv2N6paddle17ResponseNormLayer4pow_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle17ResponseNormLayer7denoms_E">
<span id="paddle::ResponseNormLayer::denoms___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1ResponseNormLayer_1aea037fc649f257f21aaa67fab845d6b2"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">denoms_</code><a class="headerlink" href="#_CPPv2N6paddle17ResponseNormLayer7denoms_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="batchnormbaselayer">
<h2>BatchNormBaseLayer<a class="headerlink" href="#batchnormbaselayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle18BatchNormBaseLayerE">
<span id="paddle::BatchNormBaseLayer"></span><span class="target" id="paddleclasspaddle_1_1BatchNormBaseLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">BatchNormBaseLayer</code><a class="headerlink" href="#_CPPv2N6paddle18BatchNormBaseLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>Batch normalization layer use to normalizes the input to across the batch. </p>
<p>By default, calculating global mean and variance statistics via a running average in the training peroid. Then the pre-calculated global mean and variance are used for testing.</p>
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<p>Moving mean and variance are located in <a class="reference internal" href="../../parameter/parameter/parameter.html#paddleclasspaddle_1_1Parameter"><span class="std std-ref">Parameter</span></a> object when constructing and the calculation will change them. Now we only save global mean and variance of one thread in first node for GPU. But the calculation in CPU is different, because parameters are shared by multiple threads. Here using ShareCpuMatrix with lock to calculate. We still save global mean and variance in first node in CPU when multi machine.</p>
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<p>[1] S. Ioffe and C. Szegedy, &#8220;Batch Normalization: Accelerating Deep Network
    Training by Reducing Internal Covariate Shift.&#8221; arXiv preprint arXiv:1502.03167 (2015). </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
<p>Subclassed by <a class="reference internal" href="#paddleclasspaddle_1_1BatchNormalizationLayer"><span class="std std-ref">paddle::BatchNormalizationLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1CudnnBatchNormLayer"><span class="std std-ref">paddle::CudnnBatchNormLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle18BatchNormBaseLayer18BatchNormBaseLayerERK11LayerConfig">
<span id="paddle::BatchNormBaseLayer::BatchNormBaseLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1BatchNormBaseLayer_1aeafdfa95129d94092cec2aadaf88391c"></span><code class="descname">BatchNormBaseLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle18BatchNormBaseLayer18BatchNormBaseLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle18BatchNormBaseLayerD0Ev">
<span id="paddle::BatchNormBaseLayer::~BatchNormBaseLayer"></span><span class="target" id="paddleclasspaddle_1_1BatchNormBaseLayer_1a2845e4e286e445d189245d5841a576bd"></span><code class="descname">~BatchNormBaseLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle18BatchNormBaseLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle18BatchNormBaseLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::BatchNormBaseLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1BatchNormBaseLayer_1a5142e9300404bc416dc445660433a53a"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle18BatchNormBaseLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle18BatchNormBaseLayer17calFeatureMapSizeEv">
<span id="paddle::BatchNormBaseLayer::calFeatureMapSize"></span><span class="target" id="paddleclasspaddle_1_1BatchNormBaseLayer_1abe864ddecdd9eeed559e7f150800e256"></span>void <code class="descname">calFeatureMapSize</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle18BatchNormBaseLayer17calFeatureMapSizeEv" title="Permalink to this definition">¶</a></dt>
<dd><p>Calculate feature map size. Some input uses frameHeight and frameWidth to store feature size. </p>
</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Static Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle18BatchNormBaseLayer6createERK11LayerConfig">
<span id="paddle::BatchNormBaseLayer::create__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1BatchNormBaseLayer_1a86cf95fcb8f7f3098469dddf8a5ab9b3"></span><em class="property">static</em> <a class="reference internal" href="#_CPPv2N6paddle5LayerE" title="paddle::Layer">Layer</a> *<code class="descname">create</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle18BatchNormBaseLayer6createERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd><p>Create BatchNorm layer by norm_type, including batch_norm and cudnn_batch_norm. If do not set norm_type, it will automatically select cudnn_batch_norm for GPU and batch_norm for CPU. </p>
</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle18BatchNormBaseLayer7weight_E">
<span id="paddle::BatchNormBaseLayer::weight___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1BatchNormBaseLayer_1a0933169637b57f1930ce7d41cbcd8ceb"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">weight_</code><a class="headerlink" href="#_CPPv2N6paddle18BatchNormBaseLayer7weight_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Batch normalization scale parameter, which is referred to as gamma in in original paper. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle18BatchNormBaseLayer11movingMean_E">
<span id="paddle::BatchNormBaseLayer::movingMean___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1BatchNormBaseLayer_1a757efbdc8d7890b185ceb14cd08e3e90"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">movingMean_</code><a class="headerlink" href="#_CPPv2N6paddle18BatchNormBaseLayer11movingMean_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Moving average of mean. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle18BatchNormBaseLayer10movingVar_E">
<span id="paddle::BatchNormBaseLayer::movingVar___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1BatchNormBaseLayer_1acc5a0fb63f749b0f288bd13c9f7e085c"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">movingVar_</code><a class="headerlink" href="#_CPPv2N6paddle18BatchNormBaseLayer10movingVar_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Moving average of variance. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle18BatchNormBaseLayer7biases_E">
<span id="paddle::BatchNormBaseLayer::biases___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1BatchNormBaseLayer_1aa74dc394ea925fa87a6ef51f34bed4e5"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">biases_</code><a class="headerlink" href="#_CPPv2N6paddle18BatchNormBaseLayer7biases_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Batch normalization bias parameter, which is referred to as beta in in original paper. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle18BatchNormBaseLayer10savedMean_E">
<span id="paddle::BatchNormBaseLayer::savedMean___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1BatchNormBaseLayer_1a69e2baa220fb4cab1577b23f5e75447f"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">savedMean_</code><a class="headerlink" href="#_CPPv2N6paddle18BatchNormBaseLayer10savedMean_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Save intermediate results computed during the forward pass, these can then be reused to speed up the backward pass. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle18BatchNormBaseLayer12savedInvVar_E">
<span id="paddle::BatchNormBaseLayer::savedInvVar___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1BatchNormBaseLayer_1a2660b7213380b1964e3b7e69d0dcf671"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">savedInvVar_</code><a class="headerlink" href="#_CPPv2N6paddle18BatchNormBaseLayer12savedInvVar_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle18BatchNormBaseLayer8imgSize_E">
<span id="paddle::BatchNormBaseLayer::imgSize___i"></span><span class="target" id="paddleclasspaddle_1_1BatchNormBaseLayer_1ac4d6f0b01378a57ac6d5388acd4cf1f8"></span>int <code class="descname">imgSize_</code><a class="headerlink" href="#_CPPv2N6paddle18BatchNormBaseLayer8imgSize_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Height or width of input image feature, now height is equal to width. imgSize is 1 if the input is fully-connected layer. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle18BatchNormBaseLayer7imageH_E">
<span id="paddle::BatchNormBaseLayer::imageH___i"></span><span class="target" id="paddleclasspaddle_1_1BatchNormBaseLayer_1a89597861641e1a8ef9a386b56e2b7e91"></span>int <code class="descname">imageH_</code><a class="headerlink" href="#_CPPv2N6paddle18BatchNormBaseLayer7imageH_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle18BatchNormBaseLayer7imageW_E">
<span id="paddle::BatchNormBaseLayer::imageW___i"></span><span class="target" id="paddleclasspaddle_1_1BatchNormBaseLayer_1a076dbff07e4a413343a325e04515f298"></span>int <code class="descname">imageW_</code><a class="headerlink" href="#_CPPv2N6paddle18BatchNormBaseLayer7imageW_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle18BatchNormBaseLayer10imgPixels_E">
<span id="paddle::BatchNormBaseLayer::imgPixels___i"></span><span class="target" id="paddleclasspaddle_1_1BatchNormBaseLayer_1acb3372cfd0172297b15ae227283f6296"></span>int <code class="descname">imgPixels_</code><a class="headerlink" href="#_CPPv2N6paddle18BatchNormBaseLayer10imgPixels_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Height * Width. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle18BatchNormBaseLayer9channels_E">
<span id="paddle::BatchNormBaseLayer::channels___i"></span><span class="target" id="paddleclasspaddle_1_1BatchNormBaseLayer_1a62978d632f56ae9c595fb274d0fd6e6c"></span>int <code class="descname">channels_</code><a class="headerlink" href="#_CPPv2N6paddle18BatchNormBaseLayer9channels_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Feature dimension. If the input layer is conv layer, it is the channels of feature map of the conv layer. If the input layer is fully-connected layer, it is the dimension of fc layer. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle18BatchNormBaseLayer15useGlobalStats_E">
<span id="paddle::BatchNormBaseLayer::useGlobalStats___b"></span><span class="target" id="paddleclasspaddle_1_1BatchNormBaseLayer_1acad5d010c6800ef2e7995380151f48ac"></span>bool <code class="descname">useGlobalStats_</code><a class="headerlink" href="#_CPPv2N6paddle18BatchNormBaseLayer15useGlobalStats_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle18BatchNormBaseLayer18movingAvgFraction_E">
<span id="paddle::BatchNormBaseLayer::movingAvgFraction___real"></span><span class="target" id="paddleclasspaddle_1_1BatchNormBaseLayer_1a96cb0862744a9443f76ecb41429817dd"></span>real <code class="descname">movingAvgFraction_</code><a class="headerlink" href="#_CPPv2N6paddle18BatchNormBaseLayer18movingAvgFraction_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="batchnormalizationlayer">
<h2>BatchNormalizationLayer<a class="headerlink" href="#batchnormalizationlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle23BatchNormalizationLayerE">
<span id="paddle::BatchNormalizationLayer"></span><span class="target" id="paddleclasspaddle_1_1BatchNormalizationLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">BatchNormalizationLayer</code><a class="headerlink" href="#_CPPv2N6paddle23BatchNormalizationLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>A Inheritance class of Batch normalization layer. It supports both CPU and GPU. </p>
<p>The config file api is batch_norm_layer. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1BatchNormBaseLayer"><span class="std std-ref">paddle::BatchNormBaseLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle23BatchNormalizationLayer23BatchNormalizationLayerERK11LayerConfig">
<span id="paddle::BatchNormalizationLayer::BatchNormalizationLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1BatchNormalizationLayer_1a4c12778e3c027c41927ca0d5fb4de204"></span><code class="descname">BatchNormalizationLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle23BatchNormalizationLayer23BatchNormalizationLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle23BatchNormalizationLayerD0Ev">
<span id="paddle::BatchNormalizationLayer::~BatchNormalizationLayer"></span><span class="target" id="paddleclasspaddle_1_1BatchNormalizationLayer_1a81c0a5c19e8bf771eccb9ac9404114ad"></span><code class="descname">~BatchNormalizationLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle23BatchNormalizationLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle23BatchNormalizationLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::BatchNormalizationLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1BatchNormalizationLayer_1af4b5c21268a18b888f6248bb75bb6655"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle23BatchNormalizationLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle23BatchNormalizationLayer7forwardE8PassType">
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<span id="paddle::BatchNormalizationLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1BatchNormalizationLayer_1af7f66d4c00cf7f6b744601846a87e0c6"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle23BatchNormalizationLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle23BatchNormalizationLayer8backwardERK14UpdateCallback">
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<span id="paddle::BatchNormalizationLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1BatchNormalizationLayer_1a814181a10c546c560f416da9a8ef2c63"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle23BatchNormalizationLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle23BatchNormalizationLayer13setMeanAndStdEv">
<span id="paddle::BatchNormalizationLayer::setMeanAndStd"></span><span class="target" id="paddleclasspaddle_1_1BatchNormalizationLayer_1afc002f3d656902a92671572b8d7eea4d"></span>void <code class="descname">setMeanAndStd</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle23BatchNormalizationLayer13setMeanAndStdEv" title="Permalink to this definition">¶</a></dt>
<dd><p>Load pre-calculated mean and std. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle23BatchNormalizationLayer13calMeanAndStdERK9MatrixPtr">
<span id="paddle::BatchNormalizationLayer::calMeanAndStd__MatrixPtrCR"></span><span class="target" id="paddleclasspaddle_1_1BatchNormalizationLayer_1a47e4074acfaa4b44c09b275fd56aa136"></span>void <code class="descname">calMeanAndStd</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> &amp;<em>mat</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle23BatchNormalizationLayer13calMeanAndStdERK9MatrixPtr" title="Permalink to this definition">¶</a></dt>
<dd><p>Calculate mean and std. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle23BatchNormalizationLayer19calMovingMeanAndVarEv">
<span id="paddle::BatchNormalizationLayer::calMovingMeanAndVar"></span><span class="target" id="paddleclasspaddle_1_1BatchNormalizationLayer_1ac025dbf03ab90bd8213f52b431e2f8c4"></span>void <code class="descname">calMovingMeanAndVar</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle23BatchNormalizationLayer19calMovingMeanAndVarEv" title="Permalink to this definition">¶</a></dt>
<dd><p>Calculate moving mean and variance. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle23BatchNormalizationLayer9expandMatERK9MatrixPtrR9MatrixPtr">
<span id="paddle::BatchNormalizationLayer::expandMat__MatrixPtrCR.MatrixPtrR"></span><span class="target" id="paddleclasspaddle_1_1BatchNormalizationLayer_1a88f1ab5a45a312223509feb97cd00b85"></span>void <code class="descname">expandMat</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> &amp;<em>in</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> &amp;<em>out</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle23BatchNormalizationLayer9expandMatERK9MatrixPtrR9MatrixPtr" title="Permalink to this definition">¶</a></dt>
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<dd><p>expand a <a class="reference internal" href="../../math/matrix/matrix.html#paddleclasspaddle_1_1Matrix"><span class="std std-ref">Matrix</span></a> from batch, channels* imagePixels to batch * ImagePixels * channels. </p>
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</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle23BatchNormalizationLayer9shrinkMatERK9MatrixPtrR9MatrixPtr">
<span id="paddle::BatchNormalizationLayer::shrinkMat__MatrixPtrCR.MatrixPtrR"></span><span class="target" id="paddleclasspaddle_1_1BatchNormalizationLayer_1a24575bb6a59434f9f54f8a343ad8a676"></span>void <code class="descname">shrinkMat</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> &amp;<em>in</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> &amp;<em>out</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle23BatchNormalizationLayer9shrinkMatERK9MatrixPtrR9MatrixPtr" title="Permalink to this definition">¶</a></dt>
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<dd><p>Shrink a <a class="reference internal" href="../../math/matrix/matrix.html#paddleclasspaddle_1_1Matrix"><span class="std std-ref">Matrix</span></a> from from batch * ImagePixels * channels to batch, channels* imagePixels. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle23BatchNormalizationLayer7tmpMat_E">
<span id="paddle::BatchNormalizationLayer::tmpMat___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1BatchNormalizationLayer_1a360c9e8718dcd0d28b5f447239e8e5db"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">tmpMat_</code><a class="headerlink" href="#_CPPv2N6paddle23BatchNormalizationLayer7tmpMat_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle23BatchNormalizationLayer8tmpGrad_E">
<span id="paddle::BatchNormalizationLayer::tmpGrad___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1BatchNormalizationLayer_1a7b4f9acb68a62042562d9e0659548f4b"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">tmpGrad_</code><a class="headerlink" href="#_CPPv2N6paddle23BatchNormalizationLayer8tmpGrad_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle23BatchNormalizationLayer11expandedIn_E">
<span id="paddle::BatchNormalizationLayer::expandedIn___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1BatchNormalizationLayer_1a048e21f90b77f272b416d39cbba17d01"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">expandedIn_</code><a class="headerlink" href="#_CPPv2N6paddle23BatchNormalizationLayer11expandedIn_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle23BatchNormalizationLayer12expandedOut_E">
<span id="paddle::BatchNormalizationLayer::expandedOut___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1BatchNormalizationLayer_1a6e4f88bd2f604af577f72576ed1b5885"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">expandedOut_</code><a class="headerlink" href="#_CPPv2N6paddle23BatchNormalizationLayer12expandedOut_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle23BatchNormalizationLayer15expandedInGrad_E">
<span id="paddle::BatchNormalizationLayer::expandedInGrad___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1BatchNormalizationLayer_1a3066bf7d8a68eff79217736acf5eacff"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">expandedInGrad_</code><a class="headerlink" href="#_CPPv2N6paddle23BatchNormalizationLayer15expandedInGrad_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle23BatchNormalizationLayer16expandedOutGrad_E">
<span id="paddle::BatchNormalizationLayer::expandedOutGrad___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1BatchNormalizationLayer_1a3e102171e909986d1575af48db065b35"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">expandedOutGrad_</code><a class="headerlink" href="#_CPPv2N6paddle23BatchNormalizationLayer16expandedOutGrad_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle23BatchNormalizationLayer7inGrad_E">
<span id="paddle::BatchNormalizationLayer::inGrad___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1BatchNormalizationLayer_1af12f24899a7e0232af7b5c172c996742"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">inGrad_</code><a class="headerlink" href="#_CPPv2N6paddle23BatchNormalizationLayer7inGrad_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle23BatchNormalizationLayer7normIn_E">
<span id="paddle::BatchNormalizationLayer::normIn___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1BatchNormalizationLayer_1acbe0f8c87c77e03bfb413283152cb4c2"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">normIn_</code><a class="headerlink" href="#_CPPv2N6paddle23BatchNormalizationLayer7normIn_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle23BatchNormalizationLayer11normInGrad_E">
<span id="paddle::BatchNormalizationLayer::normInGrad___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1BatchNormalizationLayer_1a78fc77b066e4716c12ee416265fa8e84"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">normInGrad_</code><a class="headerlink" href="#_CPPv2N6paddle23BatchNormalizationLayer11normInGrad_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle23BatchNormalizationLayer9meanGrad_E">
<span id="paddle::BatchNormalizationLayer::meanGrad___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1BatchNormalizationLayer_1a8a8fb768c0624a17a77ce52f15184d6d"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">meanGrad_</code><a class="headerlink" href="#_CPPv2N6paddle23BatchNormalizationLayer9meanGrad_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle23BatchNormalizationLayer8stdGrad_E">
<span id="paddle::BatchNormalizationLayer::stdGrad___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1BatchNormalizationLayer_1abb8b426b1784ffede415e346c2373a8b"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">stdGrad_</code><a class="headerlink" href="#_CPPv2N6paddle23BatchNormalizationLayer8stdGrad_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle23BatchNormalizationLayer10firstTest_E">
<span id="paddle::BatchNormalizationLayer::firstTest___b"></span><span class="target" id="paddleclasspaddle_1_1BatchNormalizationLayer_1af18a5c0a28950217353b2cbd3147a6ea"></span>bool <code class="descname">firstTest_</code><a class="headerlink" href="#_CPPv2N6paddle23BatchNormalizationLayer10firstTest_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Load mean and variance only once flag. </p>
</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Static Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle23BatchNormalizationLayer3EPSE">
<span id="paddle::BatchNormalizationLayer::EPS__realC"></span><span class="target" id="paddleclasspaddle_1_1BatchNormalizationLayer_1ab076f40aa2180cfb78f7097e6cf56e02"></span><em class="property">const</em> real <code class="descname">EPS</code><a class="headerlink" href="#_CPPv2N6paddle23BatchNormalizationLayer3EPSE" title="Permalink to this definition">¶</a></dt>
<dd><p>Epsilon value used in the batch normalization formula. </p>
</dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="cudnnbatchnormlayer">
<h2>CudnnBatchNormLayer<a class="headerlink" href="#cudnnbatchnormlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle19CudnnBatchNormLayerE">
<span id="paddle::CudnnBatchNormLayer"></span><span class="target" id="paddleclasspaddle_1_1CudnnBatchNormLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">CudnnBatchNormLayer</code><a class="headerlink" href="#_CPPv2N6paddle19CudnnBatchNormLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>Cudnn Batch normalization layer use to cuDNN lib to implentment. </p>
<p>
The config file api is batch_norm_layer. <dl class="docutils">
<dt><strong>Note</strong></dt>
<dd>Cudnn version must &gt;= v4.0, and better to use the latest version (v5.1).</dd>
</dl>
</p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1BatchNormBaseLayer"><span class="std std-ref">paddle::BatchNormBaseLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle19CudnnBatchNormLayer19CudnnBatchNormLayerERK11LayerConfig">
<span id="paddle::CudnnBatchNormLayer::CudnnBatchNormLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1CudnnBatchNormLayer_1a30f2908bde1d8f7c35186b7d0cdec0f0"></span><code class="descname">CudnnBatchNormLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19CudnnBatchNormLayer19CudnnBatchNormLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19CudnnBatchNormLayerD0Ev">
<span id="paddle::CudnnBatchNormLayer::~CudnnBatchNormLayer"></span><span class="target" id="paddleclasspaddle_1_1CudnnBatchNormLayer_1ad75d8bc9eb3ef758578ec49922ecee06"></span><code class="descname">~CudnnBatchNormLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19CudnnBatchNormLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19CudnnBatchNormLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::CudnnBatchNormLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1CudnnBatchNormLayer_1a1db3a0756ee65c1834c28996fe099fe2"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19CudnnBatchNormLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19CudnnBatchNormLayer7reshapeEi">
<span id="paddle::CudnnBatchNormLayer::reshape__i"></span><span class="target" id="paddleclasspaddle_1_1CudnnBatchNormLayer_1a38f57ebd4af36499b1c9da2d7d7ac700"></span>void <code class="descname">reshape</code><span class="sig-paren">(</span>int <em>batchSize</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19CudnnBatchNormLayer7reshapeEi" title="Permalink to this definition">¶</a></dt>
<dd><p>reshape tensor of ioDesc_. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19CudnnBatchNormLayer7forwardE8PassType">
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<span id="paddle::CudnnBatchNormLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1CudnnBatchNormLayer_1a70a44ed9e782bf901eaca534fa5dab84"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19CudnnBatchNormLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19CudnnBatchNormLayer8backwardERK14UpdateCallback">
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<span id="paddle::CudnnBatchNormLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1CudnnBatchNormLayer_1ac69cefa3504bae2165c71b30745a71c5"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19CudnnBatchNormLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle19CudnnBatchNormLayer7ioDesc_E">
<span id="paddle::CudnnBatchNormLayer::ioDesc___hl_tensor_descriptor"></span><span class="target" id="paddleclasspaddle_1_1CudnnBatchNormLayer_1a116994f92af22a796763858220a9e22c"></span><a class="reference internal" href="../../cuda/cuda/cuda.html#_CPPv220hl_tensor_descriptor" title="hl_tensor_descriptor">hl_tensor_descriptor</a> <code class="descname">ioDesc_</code><a class="headerlink" href="#_CPPv2N6paddle19CudnnBatchNormLayer7ioDesc_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Input/output tensor descriptor desc. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle19CudnnBatchNormLayer12bnParamDesc_E">
<span id="paddle::CudnnBatchNormLayer::bnParamDesc___hl_tensor_descriptor"></span><span class="target" id="paddleclasspaddle_1_1CudnnBatchNormLayer_1adc70603f6fe5e5863762a9d6128a751c"></span><a class="reference internal" href="../../cuda/cuda/cuda.html#_CPPv220hl_tensor_descriptor" title="hl_tensor_descriptor">hl_tensor_descriptor</a> <code class="descname">bnParamDesc_</code><a class="headerlink" href="#_CPPv2N6paddle19CudnnBatchNormLayer12bnParamDesc_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Shared tensor descriptor desc for the 6 tenros: bnScale, bnBias, running mean/var, save_mean/var </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle19CudnnBatchNormLayer9tmpWGrad_E">
<span id="paddle::CudnnBatchNormLayer::tmpWGrad___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1CudnnBatchNormLayer_1a94ec97abaf3182c4d555a39339313fc2"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">tmpWGrad_</code><a class="headerlink" href="#_CPPv2N6paddle19CudnnBatchNormLayer9tmpWGrad_E" title="Permalink to this definition">¶</a></dt>
<dd><p>The gradient of weight and bias in cudnn api can not be empty. If set is_static for weight or bias, it will not allocate memory for them, and the gradient is NULL. In this case, will use two matrix. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle19CudnnBatchNormLayer12tmpBiasGrad_E">
<span id="paddle::CudnnBatchNormLayer::tmpBiasGrad___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1CudnnBatchNormLayer_1a595cfde46cd354fde7200813c80366e2"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">tmpBiasGrad_</code><a class="headerlink" href="#_CPPv2N6paddle19CudnnBatchNormLayer12tmpBiasGrad_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Static Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle19CudnnBatchNormLayer3EPSE">
<span id="paddle::CudnnBatchNormLayer::EPS__doubleC"></span><span class="target" id="paddleclasspaddle_1_1CudnnBatchNormLayer_1a77b024b9588c7c871b0efcc4d9a2c529"></span><em class="property">const</em> double <code class="descname">EPS</code><a class="headerlink" href="#_CPPv2N6paddle19CudnnBatchNormLayer3EPSE" title="Permalink to this definition">¶</a></dt>
<dd><p>Epsilon value used in the batch normalization formula. Minimum allowed value is CUDNN_BN_MIN_EPSILON defined in cudnn.h. Same epsilon value should be used in forward and backward functions. </p>
</dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="sumtoonenormlayer">
<h2>SumToOneNormLayer<a class="headerlink" href="#sumtoonenormlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle17SumToOneNormLayerE">
<span id="paddle::SumToOneNormLayer"></span><span class="target" id="paddleclasspaddle_1_1SumToOneNormLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">SumToOneNormLayer</code><a class="headerlink" href="#_CPPv2N6paddle17SumToOneNormLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>A layer for sum-to-one normalization, which is used in NEURAL TURING MACHINE. <div class="math">
\[ out[i] = \frac {in[i]} {\sum_{k=1}^N in[k]} \]</div>
 where <span class="math">\(in\)</span> is a (batchSize x dataDim) input vector, and <span class="math">\(out\)</span> is a (batchSize x dataDim) output vector.</p>
<p>The config file api is sum_to_one_norm_layer. </p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle17SumToOneNormLayer17SumToOneNormLayerERK11LayerConfig">
<span id="paddle::SumToOneNormLayer::SumToOneNormLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1SumToOneNormLayer_1a6d8c303e58dff6cf3ab8a8782412c4e8"></span><code class="descname">SumToOneNormLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17SumToOneNormLayer17SumToOneNormLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17SumToOneNormLayerD0Ev">
<span id="paddle::SumToOneNormLayer::~SumToOneNormLayer"></span><span class="target" id="paddleclasspaddle_1_1SumToOneNormLayer_1a102ec10b07ae56ef954656f3bb2e7599"></span><code class="descname">~SumToOneNormLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17SumToOneNormLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17SumToOneNormLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::SumToOneNormLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1SumToOneNormLayer_1acb6ec9f3ac60b6926dd6f66e81d6f474"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17SumToOneNormLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17SumToOneNormLayer7forwardE8PassType">
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<span id="paddle::SumToOneNormLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1SumToOneNormLayer_1a7092e518e3edceca74997a545b438dfe"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17SumToOneNormLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17SumToOneNormLayer8backwardERK14UpdateCallback">
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<span id="paddle::SumToOneNormLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1SumToOneNormLayer_1ad34e2c481a5cee61e059ac026765a567"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17SumToOneNormLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle17SumToOneNormLayer17reciprocalRowSum_E">
<span id="paddle::SumToOneNormLayer::reciprocalRowSum___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1SumToOneNormLayer_1a9d822e1a4d4d9aac2ed3028f2ed3c809"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">reciprocalRowSum_</code><a class="headerlink" href="#_CPPv2N6paddle17SumToOneNormLayer17reciprocalRowSum_E" title="Permalink to this definition">¶</a></dt>
<dd><p>reciprocalRowSum_ = <span class="math">\(1 / \sum_{k=1}^N in[k]\)</span> </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle17SumToOneNormLayer7dotSum_E">
<span id="paddle::SumToOneNormLayer::dotSum___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1SumToOneNormLayer_1af2ae1db64f71abe865bc55b9d04e6bd9"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">dotSum_</code><a class="headerlink" href="#_CPPv2N6paddle17SumToOneNormLayer7dotSum_E" title="Permalink to this definition">¶</a></dt>
<dd><p>dotSum = output_.grad <span class="math">\(.*\)</span> output_.value </p>
</dd></dl>

</div>
</dd></dl>

</div>
</div>
<div class="section" id="activation-layer">
<h1>Activation Layer<a class="headerlink" href="#activation-layer" title="Permalink to this headline">¶</a></h1>
<div class="section" id="parameterrelulayer">
<h2>ParameterReluLayer<a class="headerlink" href="#parameterrelulayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle18ParameterReluLayerE">
<span id="paddle::ParameterReluLayer"></span><span class="target" id="paddleclasspaddle_1_1ParameterReluLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">ParameterReluLayer</code><a class="headerlink" href="#_CPPv2N6paddle18ParameterReluLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p><a class="reference internal" href="#paddleclasspaddle_1_1ParameterReluLayer"><span class="std std-ref">ParameterReluLayer</span></a> active inputs with learnable parameter weight_. forward: <div class="math">
\[ y = x &gt; 0 ? x : w .* x \]</div>
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 backward: <div class="math">
\[\begin{split} dx = x &gt; 0 ? dy : w .* dy \\ dw = x &gt; 0 ? 0 : dy.*x \end{split}\]</div>
 Here, x is the input, w is the weight, y is the output. dx, dw, dy is the gradient. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle18ParameterReluLayer18ParameterReluLayerERK11LayerConfig">
<span id="paddle::ParameterReluLayer::ParameterReluLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1ParameterReluLayer_1a0ac9c34b2882d97b758783ca47551cb6"></span><code class="descname">ParameterReluLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle18ParameterReluLayer18ParameterReluLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle18ParameterReluLayerD0Ev">
<span id="paddle::ParameterReluLayer::~ParameterReluLayer"></span><span class="target" id="paddleclasspaddle_1_1ParameterReluLayer_1a7544b57e57adacdefa17ecb917eb0d7f"></span><code class="descname">~ParameterReluLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle18ParameterReluLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle18ParameterReluLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::ParameterReluLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1ParameterReluLayer_1afce30da21f9c2b9ed23afc7782f0033c"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle18ParameterReluLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle18ParameterReluLayer7forwardE8PassType">
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<span id="paddle::ParameterReluLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1ParameterReluLayer_1a1db2ca1711e5f6ce5ee26b332e2c2000"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle18ParameterReluLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle18ParameterReluLayer8backwardERK14UpdateCallback">
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<span id="paddle::ParameterReluLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1ParameterReluLayer_1a2ae1c4aceaabcf5d78ae0222af9494c6"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle18ParameterReluLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle18ParameterReluLayer7weight_E">
<span id="paddle::ParameterReluLayer::weight___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1ParameterReluLayer_1a0d086bbce408a879c17e49d81abbb890"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">weight_</code><a class="headerlink" href="#_CPPv2N6paddle18ParameterReluLayer7weight_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle18ParameterReluLayer11partialSum_E">
<span id="paddle::ParameterReluLayer::partialSum___s"></span><span class="target" id="paddleclasspaddle_1_1ParameterReluLayer_1a22f3d3d5e12a21bc6382d51f96307560"></span>size_t <code class="descname">partialSum_</code><a class="headerlink" href="#_CPPv2N6paddle18ParameterReluLayer11partialSum_E" title="Permalink to this definition">¶</a></dt>
<dd><p>partialSum_ makes a group of inputs share same weights, </p>
<p><ul class="simple">
<li>partialSum_ = 1: element wise activation: each element has a weight_,</li>
<li>partialSum_ = number of elements in one channel, channels wise parameter activation, elements in a channel share same weight_,</li>
<li>partialSum_ = number of outputs all elements share same weight_, </li>
</ul>
</p>
</dd></dl>

</div>
</dd></dl>

</div>
</div>
<div class="section" id="recurrent-layers">
<h1>Recurrent Layers<a class="headerlink" href="#recurrent-layers" title="Permalink to this headline">¶</a></h1>
<div class="section" id="recurrentlayer">
<h2>RecurrentLayer<a class="headerlink" href="#recurrentlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle14RecurrentLayerE">
<span id="paddle::RecurrentLayer"></span><span class="target" id="paddleclasspaddle_1_1RecurrentLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">RecurrentLayer</code><a class="headerlink" href="#_CPPv2N6paddle14RecurrentLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p><a class="reference internal" href="#paddleclasspaddle_1_1RecurrentLayer"><span class="std std-ref">RecurrentLayer</span></a> takes 1 input layer. The output size is the same with input layer. For each sequence [start, end] it performs the following computation: <div class="math">
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\[\begin{split} out_{i} = act(in_{i}) \ \ \text{for} \ i = start \\ out_{i} = act(in_{i} + out_{i-1} * W) \ \ \text{for} \ start &lt; i &lt;= end \end{split}\]</div>
 If reversed is true, the order is reversed: <div class="math">
\[\begin{split} out_{i} = act(in_{i}) \ \ \text{for} \ i = end \\ out_{i} = act(in_{i} + out_{i+1} * W) \ \ \text{for} \ start &lt;= i &lt; end \end{split}\]</div>
 There are two methods to calculate rnn. One way is to compute rnn one sequence by one sequence. The other way is to reorganize the input into batches, then compute rnn one batch by one batch. Users can select them by rnn_use_batch flag. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle14RecurrentLayer14RecurrentLayerERK11LayerConfig">
<span id="paddle::RecurrentLayer::RecurrentLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1RecurrentLayer_1a63b77781725525b2414c823ad9f95feb"></span><code class="descname">RecurrentLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14RecurrentLayer14RecurrentLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14RecurrentLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::RecurrentLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1RecurrentLayer_1a99f001c21cba60340f7c0238a559eaaa"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14RecurrentLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14RecurrentLayer7forwardE8PassType">
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<span id="paddle::RecurrentLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1RecurrentLayer_1a9d1232412ae739901d4c5795e469d6f2"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14RecurrentLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14RecurrentLayer8backwardERK14UpdateCallback">
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<span id="paddle::RecurrentLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1RecurrentLayer_1a3146f87e0c7be24471f324f8de280cd7"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14RecurrentLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14RecurrentLayer10resetStateEv">
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<span id="paddle::RecurrentLayer::resetState"></span><span class="target" id="paddleclasspaddle_1_1RecurrentLayer_1a18ca63523ed33cf8608d04cfb0136634"></span>void <code class="descname">resetState</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14RecurrentLayer10resetStateEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>Reset the internal state variables. Allocate them if they have not been allocated. This function need to called before <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> for generating sequence.</p>
<p>This is used for sequence generation. When generating sequence, the calculation at current timestamp depends on the state from previous timestamp. The model needs to keep the information about the previous timestamp in the state variables. Layers such as <a class="reference internal" href="#paddleclasspaddle_1_1RecurrentLayer"><span class="std std-ref">RecurrentLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1LstmLayer"><span class="std std-ref">LstmLayer</span></a> and ContextLayer have state variables. </p>
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</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14RecurrentLayer8setStateE13LayerStatePtr">
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<span id="paddle::RecurrentLayer::setState__LayerStatePtr"></span><span class="target" id="paddleclasspaddle_1_1RecurrentLayer_1a84679de9a0354667e78911bf06912f9f"></span>void <code class="descname">setState</code><span class="sig-paren">(</span>LayerStatePtr <em>state</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14RecurrentLayer8setStateE13LayerStatePtr" title="Permalink to this definition">¶</a></dt>
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<dd><p>Set layer state. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14RecurrentLayer8getStateEv">
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<span id="paddle::RecurrentLayer::getState"></span><span class="target" id="paddleclasspaddle_1_1RecurrentLayer_1ab506ee6ae00d3a727ff8049e279a04a9"></span>LayerStatePtr <code class="descname">getState</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14RecurrentLayer8getStateEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>Get layer state. <dl class="docutils">
<dt><strong>Return</strong></dt>
<dd>A copy of internal state. </dd>
</dl>
</p>
</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle14RecurrentLayer15forwardSequenceEi6size_tPKi">
<span id="paddle::RecurrentLayer::forwardSequence__i.s.iCP"></span><span class="target" id="paddleclasspaddle_1_1RecurrentLayer_1a90c7839371bfd614ebc123783d404c6e"></span>void <code class="descname">forwardSequence</code><span class="sig-paren">(</span>int <em>batchSize</em>, size_t <em>numSequences</em>, <em class="property">const</em> int *<em>starts</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14RecurrentLayer15forwardSequenceEi6size_tPKi" title="Permalink to this definition">¶</a></dt>
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<dd><p>If user do not set rnn_use_batch=true, it will compute rnn forward one sequence by one sequence in default. </p>
<p><dl class="docutils">
<dt><strong>Parameters</strong></dt>
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<dd><ul class="breatheparameterlist first last simple">
<li><code class="docutils literal"><span class="pre">batchSize</span></code>: Total words number of all samples in this batch. </li>
<li><code class="docutils literal"><span class="pre">numSequences</span></code>: The sample number. </li>
<li><code class="docutils literal"><span class="pre">starts</span></code>: Each start position of each samples. </li>
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</ul>
</dd>
</dl>
</p>
</dd></dl>
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<dl class="function">
<dt id="_CPPv2N6paddle14RecurrentLayer18forwardOneSequenceEii">
<span id="paddle::RecurrentLayer::forwardOneSequence__i.i"></span><span class="target" id="paddleclasspaddle_1_1RecurrentLayer_1a30cd10d03d577a2525d540499a9cdd9e"></span>void <code class="descname">forwardOneSequence</code><span class="sig-paren">(</span>int <em>start</em>, int <em>length</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14RecurrentLayer18forwardOneSequenceEii" title="Permalink to this definition">¶</a></dt>
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<dd><p>Compute rnn forward by one sequence. </p>
<p><dl class="docutils">
<dt><strong>Parameters</strong></dt>
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<dd><ul class="breatheparameterlist first last simple">
<li><code class="docutils literal"><span class="pre">start</span></code>: The start position of this sequence (or sample). </li>
<li><code class="docutils literal"><span class="pre">length</span></code>: The length of this sequence (or sample), namely the words number of this sequence. </li>
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</ul>
</dd>
</dl>
</p>
</dd></dl>
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<dl class="function">
<dt id="_CPPv2N6paddle14RecurrentLayer16backwardSequenceEi6size_tPKi">
<span id="paddle::RecurrentLayer::backwardSequence__i.s.iCP"></span><span class="target" id="paddleclasspaddle_1_1RecurrentLayer_1adcbb881ce7785dc4afe080a4dfb33543"></span>void <code class="descname">backwardSequence</code><span class="sig-paren">(</span>int <em>batchSize</em>, size_t <em>numSequences</em>, <em class="property">const</em> int *<em>starts</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14RecurrentLayer16backwardSequenceEi6size_tPKi" title="Permalink to this definition">¶</a></dt>
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<dd><p>Compute rnn backward one sequence by onesequence. </p>
<p><dl class="docutils">
<dt><strong>Parameters</strong></dt>
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<dd><ul class="breatheparameterlist first last simple">
<li><code class="docutils literal"><span class="pre">batchSize</span></code>: Total words number of all samples in this batch. </li>
<li><code class="docutils literal"><span class="pre">numSequences</span></code>: The sample number. </li>
<li><code class="docutils literal"><span class="pre">starts</span></code>: Each start position of each samples. </li>
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</ul>
</dd>
</dl>
</p>
</dd></dl>
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<dl class="function">
<dt id="_CPPv2N6paddle14RecurrentLayer19backwardOneSequenceEii">
<span id="paddle::RecurrentLayer::backwardOneSequence__i.i"></span><span class="target" id="paddleclasspaddle_1_1RecurrentLayer_1a257c8ff72854f1897e07683b5d3c3c55"></span>void <code class="descname">backwardOneSequence</code><span class="sig-paren">(</span>int <em>start</em>, int <em>length</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14RecurrentLayer19backwardOneSequenceEii" title="Permalink to this definition">¶</a></dt>
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<dd><p>Compute rnn backward by one sequence. </p>
<p><dl class="docutils">
<dt><strong>Parameters</strong></dt>
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<dd><ul class="breatheparameterlist first last simple">
<li><code class="docutils literal"><span class="pre">start</span></code>: The start position of this sequence (or sample). </li>
<li><code class="docutils literal"><span class="pre">length</span></code>: The length of this sequence (or sample), namely the words number of this sequence. </li>
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</ul>
</dd>
</dl>
</p>
</dd></dl>
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<dl class="function">
<dt id="_CPPv2N6paddle14RecurrentLayer12forwardBatchEi6size_tPKi">
<span id="paddle::RecurrentLayer::forwardBatch__i.s.iCP"></span><span class="target" id="paddleclasspaddle_1_1RecurrentLayer_1a5918b8a5a9da4654652f899ea0710ef8"></span>void <code class="descname">forwardBatch</code><span class="sig-paren">(</span>int <em>batchSize</em>, size_t <em>numSequences</em>, <em class="property">const</em> int *<em>starts</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14RecurrentLayer12forwardBatchEi6size_tPKi" title="Permalink to this definition">¶</a></dt>
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<dd><p>Reorganize input into batches and compute rnn forward batch by batch. It will convert batch shape to sequence after finishing forward. The batch info can refer to <a class="reference internal" href="#paddleclasspaddle_1_1SequenceToBatch"><span class="std std-ref">SequenceToBatch</span></a> class. </p>
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<p><dl class="docutils">
<dt><strong>Parameters</strong></dt>
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<dd><ul class="breatheparameterlist first last simple">
<li><code class="docutils literal"><span class="pre">batchSize</span></code>: Total words number of all samples in this batch. </li>
<li><code class="docutils literal"><span class="pre">numSequences</span></code>: The sample number. </li>
<li><code class="docutils literal"><span class="pre">starts</span></code>: Each start position of each samples. </li>
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</ul>
</dd>
</dl>
</p>
</dd></dl>
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<dl class="function">
<dt id="_CPPv2N6paddle14RecurrentLayer13backwardBatchEi6size_tPKi">
<span id="paddle::RecurrentLayer::backwardBatch__i.s.iCP"></span><span class="target" id="paddleclasspaddle_1_1RecurrentLayer_1afe122c89654299ea0a68b626d1741c28"></span>void <code class="descname">backwardBatch</code><span class="sig-paren">(</span>int <em>batchSize</em>, size_t <em>numSequences</em>, <em class="property">const</em> int *<em>starts</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14RecurrentLayer13backwardBatchEi6size_tPKi" title="Permalink to this definition">¶</a></dt>
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<dd><p>Reorganize input into batches and compute rnn forward batch by batch. </p>
<p><dl class="docutils">
<dt><strong>Parameters</strong></dt>
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<dd><ul class="breatheparameterlist first last simple">
<li><code class="docutils literal"><span class="pre">batchSize</span></code>: Total words number of all samples in this batch. </li>
<li><code class="docutils literal"><span class="pre">numSequences</span></code>: The sample number. </li>
<li><code class="docutils literal"><span class="pre">starts</span></code>: Each start position of each samples. </li>
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</ul>
</dd>
</dl>
</p>
</dd></dl>
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</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle14RecurrentLayer7weight_E">
<span id="paddle::RecurrentLayer::weight___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1RecurrentLayer_1ac14a9979f7c9ffe7c0d794185e89c783"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">weight_</code><a class="headerlink" href="#_CPPv2N6paddle14RecurrentLayer7weight_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14RecurrentLayer5bias_E">
<span id="paddle::RecurrentLayer::bias___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1RecurrentLayer_1a5ba280e13a530c829135ff95e152b765"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">bias_</code><a class="headerlink" href="#_CPPv2N6paddle14RecurrentLayer5bias_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14RecurrentLayer12frameOutput_E">
<span id="paddle::RecurrentLayer::frameOutput___std::vector:Argument:"></span><span class="target" id="paddleclasspaddle_1_1RecurrentLayer_1ae16040832362bdfc73cff510b377dd49"></span>std::vector&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a>&gt; <code class="descname">frameOutput_</code><a class="headerlink" href="#_CPPv2N6paddle14RecurrentLayer12frameOutput_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>frameOutput_[i] is used to hold the i-th sample of output_ </p>
</dd></dl>
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<dl class="member">
<dt id="_CPPv2N6paddle14RecurrentLayer11prevOutput_E">
<span id="paddle::RecurrentLayer::prevOutput___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1RecurrentLayer_1a8fa6a54eb1b08db95ff33b3fda59d292"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">prevOutput_</code><a class="headerlink" href="#_CPPv2N6paddle14RecurrentLayer11prevOutput_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14RecurrentLayer9reversed_E">
<span id="paddle::RecurrentLayer::reversed___b"></span><span class="target" id="paddleclasspaddle_1_1RecurrentLayer_1a27891ca7f195310e2fb5168fa02b6af1"></span>bool <code class="descname">reversed_</code><a class="headerlink" href="#_CPPv2N6paddle14RecurrentLayer9reversed_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>Whether compute rnn by reverse. </p>
</dd></dl>
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<dl class="member">
<dt id="_CPPv2N6paddle14RecurrentLayer11batchValue_E">
<span id="paddle::RecurrentLayer::batchValue___std::unique_ptr:SequenceToBatch:"></span><span class="target" id="paddleclasspaddle_1_1RecurrentLayer_1a04665ba8307238a216b2c44c50da2926"></span>std::unique_ptr&lt;<a class="reference internal" href="#_CPPv2N6paddle15SequenceToBatchE" title="paddle::SequenceToBatch">SequenceToBatch</a>&gt; <code class="descname">batchValue_</code><a class="headerlink" href="#_CPPv2N6paddle14RecurrentLayer11batchValue_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>If compute batch by batch, batchValue_ will be used to save the reorganized input value. </p>
</dd></dl>
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<dl class="member">
<dt id="_CPPv2N6paddle14RecurrentLayer10batchGrad_E">
<span id="paddle::RecurrentLayer::batchGrad___std::unique_ptr:SequenceToBatch:"></span><span class="target" id="paddleclasspaddle_1_1RecurrentLayer_1a8a82c9e0f3c6269de017b5ea22dae0ed"></span>std::unique_ptr&lt;<a class="reference internal" href="#_CPPv2N6paddle15SequenceToBatchE" title="paddle::SequenceToBatch">SequenceToBatch</a>&gt; <code class="descname">batchGrad_</code><a class="headerlink" href="#_CPPv2N6paddle14RecurrentLayer10batchGrad_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>If compute batch by batch, batchGrad_ will be used to save the gradient with respect to reorganized input value. </p>
</dd></dl>
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</div>
</dd></dl>

</div>
<div class="section" id="sequencetobatch">
<h2>SequenceToBatch<a class="headerlink" href="#sequencetobatch" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle15SequenceToBatchE">
<span id="paddle::SequenceToBatch"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">SequenceToBatch</code><a class="headerlink" href="#_CPPv2N6paddle15SequenceToBatchE" title="Permalink to this definition">¶</a></dt>
<dd><div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle15SequenceToBatch15SequenceToBatchEb">
<span id="paddle::SequenceToBatch::SequenceToBatch__b"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch_1abcd1977bcb75a3f6ac38fe30a2083d86"></span><code class="descname">SequenceToBatch</code><span class="sig-paren">(</span>bool <em>useGpu</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15SequenceToBatch15SequenceToBatchEb" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15SequenceToBatch19resizeOrCreateBatchEi6size_tPKibb">
<span id="paddle::SequenceToBatch::resizeOrCreateBatch__i.s.iCP.b.b"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch_1a28a7ccf68dc1e41883df51e9b775c261"></span>void <code class="descname">resizeOrCreateBatch</code><span class="sig-paren">(</span>int <em>batchSize</em>, size_t <em>numSequences</em>, <em class="property">const</em> int *<em>seqStarts</em>, bool <em>reversed</em>, bool <em>prevBatchState</em> = false<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15SequenceToBatch19resizeOrCreateBatchEi6size_tPKibb" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15SequenceToBatch4copyER6MatrixR6Matrixb">
<span id="paddle::SequenceToBatch::copy__MatrixR.MatrixR.b"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch_1af9014a67cae61b27e189f8d76ff58c0f"></span>void <code class="descname">copy</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>seqValue</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>batchValue</em>, bool <em>seq2batch</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15SequenceToBatch4copyER6MatrixR6Matrixb" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15SequenceToBatch3addER6MatrixR6Matrixb">
<span id="paddle::SequenceToBatch::add__MatrixR.MatrixR.b"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch_1aea08d566a0faceeb9838f064e012387b"></span>void <code class="descname">add</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>seqValue</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>batchValue</em>, bool <em>seq2batch</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15SequenceToBatch3addER6MatrixR6Matrixb" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15SequenceToBatch13getBatchValueER6Matrixii">
<span id="paddle::SequenceToBatch::getBatchValue__MatrixR.i.i"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch_1a9fff6f942ecba9a4c902dff969c15092"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">getBatchValue</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>batchValue</em>, int <em>batchId</em>, int <em>numRows</em> = 0<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15SequenceToBatch13getBatchValueER6Matrixii" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
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<dt id="_CPPv2NK6paddle15SequenceToBatch11getNumBatchEv">
<span id="paddle::SequenceToBatch::getNumBatchC"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch_1a31d9fbc0e725b7c35a6b95ba718926bc"></span>size_t <code class="descname">getNumBatch</code><span class="sig-paren">(</span><span class="sig-paren">)</span> <em class="property">const</em><a class="headerlink" href="#_CPPv2NK6paddle15SequenceToBatch11getNumBatchEv" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15SequenceToBatch14resizeOrCreateER6Matrix">
<span id="paddle::SequenceToBatch::resizeOrCreate__MatrixR"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch_1a257eee81d19221265bb4062e68422254"></span>void <code class="descname">resizeOrCreate</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>seqValue</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15SequenceToBatch14resizeOrCreateER6Matrix" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15SequenceToBatch11copyFromSeqER6Matrix">
<span id="paddle::SequenceToBatch::copyFromSeq__MatrixR"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch_1ab0daf928cdd60324c92ef5dd99f484a1"></span>void <code class="descname">copyFromSeq</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>seqValue</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15SequenceToBatch11copyFromSeqER6Matrix" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15SequenceToBatch11copyBackSeqER6Matrix">
<span id="paddle::SequenceToBatch::copyBackSeq__MatrixR"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch_1ab9a8bb953a6ce9cf2b6d0ba91ac1cb14"></span>void <code class="descname">copyBackSeq</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>seqValue</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15SequenceToBatch11copyBackSeqER6Matrix" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15SequenceToBatch13getBatchValueEii">
<span id="paddle::SequenceToBatch::getBatchValue__i.i"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch_1ac623240c86a38644091f0088bd7e51b6"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">getBatchValue</code><span class="sig-paren">(</span>int <em>batchId</em>, int <em>numRows</em> = 0<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15SequenceToBatch13getBatchValueEii" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15SequenceToBatch13getBatchValueEv">
<span id="paddle::SequenceToBatch::getBatchValue"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch_1af405c5e13761b5abcba038fc70439e41"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">getBatchValue</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15SequenceToBatch13getBatchValueEv" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15SequenceToBatch16prevOutput2BatchER6MatrixR6Matrix">
<span id="paddle::SequenceToBatch::prevOutput2Batch__MatrixR.MatrixR"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch_1a2e38715d3029c4910252f15343ad69de"></span>void <code class="descname">prevOutput2Batch</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>src</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>dst</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15SequenceToBatch16prevOutput2BatchER6MatrixR6Matrix" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15SequenceToBatch21getSeqOutputFromBatchER6MatrixR6Matrix">
<span id="paddle::SequenceToBatch::getSeqOutputFromBatch__MatrixR.MatrixR"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch_1ac10d10515f41c736801344e4620968bd"></span>void <code class="descname">getSeqOutputFromBatch</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>sequence</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>batch</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15SequenceToBatch21getSeqOutputFromBatchER6MatrixR6Matrix" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15SequenceToBatch14shareIndexWithERK15SequenceToBatch">
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<span id="paddle::SequenceToBatch::shareIndexWith__SequenceToBatchCR"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch_1ac7e875eb37973abecaf8a6a3884b6cc3"></span>void <code class="descname">shareIndexWith</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="#_CPPv2N6paddle15SequenceToBatchE" title="paddle::SequenceToBatch">SequenceToBatch</a> &amp;<em>seq2batch</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15SequenceToBatch14shareIndexWithERK15SequenceToBatch" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle15SequenceToBatch18sequence2BatchCopyER6MatrixR6MatrixR7IVectorb">
<span id="paddle::SequenceToBatch::sequence2BatchCopy__MatrixR.MatrixR.IVectorR.b"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch_1a3bad8a979dd13f866c6620d39675f8ea"></span>void <code class="descname">sequence2BatchCopy</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>batch</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>sequence</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle7IVectorE" title="paddle::IVector">IVector</a> &amp;<em>seq2BatchIdx</em>, bool <em>seq2batch</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15SequenceToBatch18sequence2BatchCopyER6MatrixR6MatrixR7IVectorb" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15SequenceToBatch17sequence2BatchAddER6MatrixR6MatrixR7IVectorb">
<span id="paddle::SequenceToBatch::sequence2BatchAdd__MatrixR.MatrixR.IVectorR.b"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch_1aace2674cc1620fa2873a9303f2a2cda1"></span>void <code class="descname">sequence2BatchAdd</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>batch</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>sequence</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle7IVectorE" title="paddle::IVector">IVector</a> &amp;<em>seq2BatchIdx</em>, bool <em>seq2batch</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15SequenceToBatch17sequence2BatchAddER6MatrixR6MatrixR7IVectorb" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle15SequenceToBatch20batchStartPositions_E">
<span id="paddle::SequenceToBatch::batchStartPositions___IVectorPtr"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch_1a6750f37aed08ae0f52ff8d73fd284d96"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle10IVectorPtrE" title="paddle::IVectorPtr">IVectorPtr</a> <code class="descname">batchStartPositions_</code><a class="headerlink" href="#_CPPv2N6paddle15SequenceToBatch20batchStartPositions_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle15SequenceToBatch13seq2BatchIdx_E">
<span id="paddle::SequenceToBatch::seq2BatchIdx___IVectorPtr"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch_1a3af6dd31f47f637089b15dde413fc11b"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle10IVectorPtrE" title="paddle::IVectorPtr">IVectorPtr</a> <code class="descname">seq2BatchIdx_</code><a class="headerlink" href="#_CPPv2N6paddle15SequenceToBatch13seq2BatchIdx_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle15SequenceToBatch16cpuSeq2BatchIdx_E">
<span id="paddle::SequenceToBatch::cpuSeq2BatchIdx___IVectorPtr"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch_1ae43bd5e6c3dceb5bb128b22fe8d75a08"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle10IVectorPtrE" title="paddle::IVectorPtr">IVectorPtr</a> <code class="descname">cpuSeq2BatchIdx_</code><a class="headerlink" href="#_CPPv2N6paddle15SequenceToBatch16cpuSeq2BatchIdx_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle15SequenceToBatch10cpuSeqIdx_E">
<span id="paddle::SequenceToBatch::cpuSeqIdx___IVectorPtr"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch_1a986f39c0fe02355fef8b5ca41eda80c6"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle10IVectorPtrE" title="paddle::IVectorPtr">IVectorPtr</a> <code class="descname">cpuSeqIdx_</code><a class="headerlink" href="#_CPPv2N6paddle15SequenceToBatch10cpuSeqIdx_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle15SequenceToBatch20cpuSeqEndIdxInBatch_E">
<span id="paddle::SequenceToBatch::cpuSeqEndIdxInBatch___IVectorPtr"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch_1a0fc33d218719c71206cb5c2407cad20d"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle10IVectorPtrE" title="paddle::IVectorPtr">IVectorPtr</a> <code class="descname">cpuSeqEndIdxInBatch_</code><a class="headerlink" href="#_CPPv2N6paddle15SequenceToBatch20cpuSeqEndIdxInBatch_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle15SequenceToBatch7seqIdx_E">
<span id="paddle::SequenceToBatch::seqIdx___IVectorPtr"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch_1a15766e26d7d371b4b0e70c59c17b295d"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle10IVectorPtrE" title="paddle::IVectorPtr">IVectorPtr</a> <code class="descname">seqIdx_</code><a class="headerlink" href="#_CPPv2N6paddle15SequenceToBatch7seqIdx_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle15SequenceToBatch17seqEndIdxInBatch_E">
<span id="paddle::SequenceToBatch::seqEndIdxInBatch___IVectorPtr"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch_1a6c86b527bf3fcae665bdaebecdc66252"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle10IVectorPtrE" title="paddle::IVectorPtr">IVectorPtr</a> <code class="descname">seqEndIdxInBatch_</code><a class="headerlink" href="#_CPPv2N6paddle15SequenceToBatch17seqEndIdxInBatch_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle15SequenceToBatch9numBatch_E">
<span id="paddle::SequenceToBatch::numBatch___s"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch_1a9d4451ccc382bf187fa8393dff3f30d0"></span>size_t <code class="descname">numBatch_</code><a class="headerlink" href="#_CPPv2N6paddle15SequenceToBatch9numBatch_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle15SequenceToBatch7useGpu_E">
<span id="paddle::SequenceToBatch::useGpu___b"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch_1a8f9fc367c0aa65fb1abbaf8d3863c1e5"></span>bool <code class="descname">useGpu_</code><a class="headerlink" href="#_CPPv2N6paddle15SequenceToBatch7useGpu_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle15SequenceToBatch11batchValue_E">
<span id="paddle::SequenceToBatch::batchValue___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1SequenceToBatch_1afb76192bdc89d9074f521aa521379f42"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">batchValue_</code><a class="headerlink" href="#_CPPv2N6paddle15SequenceToBatch11batchValue_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="lstm">
<h2>LSTM<a class="headerlink" href="#lstm" title="Permalink to this headline">¶</a></h2>
<div class="section" id="lstmlayer">
<h3>LstmLayer<a class="headerlink" href="#lstmlayer" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="_CPPv2N6paddle9LstmLayerE">
<span id="paddle::LstmLayer"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">LstmLayer</code><a class="headerlink" href="#_CPPv2N6paddle9LstmLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p><a class="reference internal" href="#paddleclasspaddle_1_1LstmLayer"><span class="std std-ref">LstmLayer</span></a> takes 1 input layer with size * 4. Input layer is diveded into 4 equal parts: (input_s, input_ig, input_fg, input_og) </p>
<p>For each sequence [start, end] it performs the following computation: <div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">output_</span><span class="p">{</span><span class="n">i</span><span class="p">}</span> <span class="o">=</span> <span class="n">actState</span><span class="p">(</span><span class="n">state_</span><span class="p">{</span><span class="n">i</span><span class="p">})</span> <span class="o">*</span> <span class="n">actGate</span><span class="p">(</span><span class="n">outputGate_</span><span class="p">{</span><span class="n">i</span><span class="p">})</span>
<span class="n">state_</span><span class="p">{</span><span class="n">i</span><span class="p">}</span> <span class="o">=</span> <span class="n">actInput</span><span class="p">(</span><span class="n">input_s_</span><span class="p">{</span><span class="n">i</span><span class="p">}</span> <span class="o">+</span> <span class="n">bias_s</span> <span class="o">+</span>
            <span class="n">output_</span><span class="p">{</span><span class="n">i</span><span class="o">-</span><span class="mi">1</span><span class="p">}</span> <span class="o">*</span> <span class="n">recurrIW</span><span class="p">)</span> <span class="o">*</span> <span class="n">actGate</span><span class="p">(</span><span class="n">inputGate_</span><span class="p">{</span><span class="n">i</span><span class="p">})</span> <span class="o">+</span>
            <span class="n">actGate</span><span class="p">(</span><span class="n">forgetGate_</span><span class="p">{</span><span class="n">i</span><span class="p">})</span> <span class="o">*</span> <span class="n">state_</span><span class="p">{</span><span class="n">i</span><span class="o">-</span><span class="mi">1</span><span class="p">}</span>
<span class="n">inputGate</span> <span class="o">=</span> <span class="n">input_ig_</span><span class="p">{</span><span class="n">i</span><span class="p">}</span> <span class="o">+</span> <span class="n">bias_ig</span> <span class="o">+</span> <span class="n">output_</span><span class="p">{</span><span class="n">i</span><span class="o">-</span><span class="mi">1</span><span class="p">}</span> <span class="o">*</span> <span class="n">recurrIGW</span> <span class="o">+</span>
            <span class="n">state_</span><span class="p">{</span><span class="n">i</span><span class="o">-</span><span class="mi">1</span><span class="p">}</span> <span class="o">*</span> <span class="n">inputCheck</span>
<span class="n">ouputGate</span> <span class="o">=</span> <span class="n">input_og_</span><span class="p">{</span><span class="n">i</span><span class="p">}</span> <span class="o">+</span> <span class="n">bias_og</span> <span class="o">+</span> <span class="n">output_</span><span class="p">{</span><span class="n">i</span><span class="o">-</span><span class="mi">1</span><span class="p">}</span> <span class="o">*</span> <span class="n">recurrOGW</span> <span class="o">+</span>
            <span class="n">state_</span><span class="p">{</span><span class="n">i</span><span class="p">}</span> <span class="o">*</span> <span class="n">outputCheck</span>
<span class="n">forgetGate</span> <span class="o">=</span> <span class="n">input_fg_</span><span class="p">{</span><span class="n">i</span><span class="p">}</span> <span class="o">+</span> <span class="n">bias_fg</span> <span class="o">+</span> <span class="n">output_</span><span class="p">{</span><span class="n">i</span><span class="o">-</span><span class="mi">1</span><span class="p">}</span> <span class="o">*</span> <span class="n">recurrFGW</span> <span class="o">+</span>
             <span class="n">state_</span><span class="p">{</span><span class="n">i</span><span class="o">-</span><span class="mi">1</span><span class="p">}</span> <span class="o">*</span> <span class="n">forgetCheck</span>
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</pre></div>
</div>
</p>
<p><ul class="simple">
<li>parameter[0] consists of (recurrIW, recurrIGW, recurrFGW, recurrOGW)</li>
<li>baisParameter consists of (bias_s, bias_ig, bias_og, bias_fg, inputCheck, forgetCheck, outputCheck)</li>
<li>actInput is defined by config active_type.</li>
<li>actState is defined by config active_state_type.</li>
<li>actGate is defined by config actvie_gate_type.</li>
</ul>
</p>
<p>There are two ways to compute, namely one sequence by one sequence or one batch by one batch. By default and no setting pre_batch_state true, it will compute batch by batch.</p>
<p>The formula in the paper is as follows: <div class="math">
\[\begin{split} i_t = \sigma(W_{xi}x_{t} + W_{hi}h_{t-1} + W_{ci}c_{t-1} + b_i) \\ f_t = \sigma(W_{xf}x_{t} + W_{hf}h_{t-1} + W_{cf}c_{t-1} + b_f) \\ \tilde{c_t} = tanh (W_{xc}x_t+W_{hc}h_{t-1} + b_c) \\ o_t = \sigma(W_{xo}x_{t} + W_{ho}h_{t-1} + W_{co}c_t + b_o) \\ c_t = f_t * c_{t-1} + i_t * \tilde{c_t} \\ h_t = o_t tanh(c_t) \end{split}\]</div>
</p>
<p>
The weight ([size, 4*size]) contains <span class="math">\(W_{hi}, W_{hf}, W_{hc}, W_{ho}\)</span>. The bias contains <span class="math">\(b_i, b_f, b_c, b_o\)</span> and <span class="math">\(W_{ci}, W_{cf}, W_{co}\)</span>. <dl class="docutils">
<dt><strong>Note</strong></dt>
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<dd>These <span class="math">\(W_{xi}x_{t}, W_{xf}x_{t}, W_{xc}x_{t}, W_{xo}x_{t}\)</span> operations on the input sequence were NOT included in <a class="reference internal" href="#paddleclasspaddle_1_1LstmLayer"><span class="std std-ref">LstmLayer</span></a>. So users should use fc_layer or mixed_layer before lstm_later.</dd>
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</dl>
</p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1LstmCompute"><span class="std std-ref">paddle::LstmCompute</span></a></p>
<p>Subclassed by <a class="reference internal" href="#paddleclasspaddle_1_1MDLstmLayer"><span class="std std-ref">paddle::MDLstmLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle9LstmLayer9LstmLayerERK11LayerConfig">
<span id="paddle::LstmLayer::LstmLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1ad5a6f6d354604c62713f284defed842c"></span><code class="descname">LstmLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer9LstmLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle9LstmLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::LstmLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1aeaebc3198e166f94befca77d65dd23d1"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle9LstmLayer7forwardE8PassType">
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<span id="paddle::LstmLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1a4871e5ee0deffb188e4e772e5a5e8a2a"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle9LstmLayer8backwardERK14UpdateCallback">
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<span id="paddle::LstmLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1a9928d17c4012810b77a7b3520d9ff6b2"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle9LstmLayer10resetStateEv">
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<span id="paddle::LstmLayer::resetState"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1a2e0fc16e618d973701b32d07ccbd74d8"></span>void <code class="descname">resetState</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer10resetStateEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>Reset the internal state variables. Allocate them if they have not been allocated. This function need to called before <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> for generating sequence.</p>
<p>This is used for sequence generation. When generating sequence, the calculation at current timestamp depends on the state from previous timestamp. The model needs to keep the information about the previous timestamp in the state variables. Layers such as <a class="reference internal" href="#paddleclasspaddle_1_1RecurrentLayer"><span class="std std-ref">RecurrentLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1LstmLayer"><span class="std std-ref">LstmLayer</span></a> and ContextLayer have state variables. </p>
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</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle9LstmLayer8setStateE13LayerStatePtr">
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<span id="paddle::LstmLayer::setState__LayerStatePtr"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1aa50629508750f22b0b9fe89ffea6d7e6"></span>void <code class="descname">setState</code><span class="sig-paren">(</span>LayerStatePtr <em>state</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer8setStateE13LayerStatePtr" title="Permalink to this definition">¶</a></dt>
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<dd><p>Set layer state. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle9LstmLayer8getStateEv">
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<span id="paddle::LstmLayer::getState"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1a05e2ac75189f5b6d54d9c2531a1c6323"></span>LayerStatePtr <code class="descname">getState</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer8getStateEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>Get layer state. <dl class="docutils">
<dt><strong>Return</strong></dt>
<dd>A copy of internal state. </dd>
</dl>
</p>
</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle9LstmLayer15forwardSequenceEi6size_tPKi9MatrixPtr">
<span id="paddle::LstmLayer::forwardSequence__i.s.iCP.MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1addf28182ae53fa0165a39cf1edbbab99"></span>void <code class="descname">forwardSequence</code><span class="sig-paren">(</span>int <em>batchSize</em>, size_t <em>numSequences</em>, <em class="property">const</em> int *<em>starts</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <em>inputValue</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer15forwardSequenceEi6size_tPKi9MatrixPtr" title="Permalink to this definition">¶</a></dt>
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<dd><p>Compute lstm forward one sequence by one sequence. </p>
<p><dl class="docutils">
<dt><strong>Parameters</strong></dt>
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<dd><ul class="breatheparameterlist first last simple">
<li><code class="docutils literal"><span class="pre">batchSize</span></code>: The batchSize is not equal to the batch_size in the config file. It is the total words number of all samples in this forward batch. </li>
<li><code class="docutils literal"><span class="pre">numSequences</span></code>: The sample number. It is equal to the batch_size in the config file. </li>
<li><code class="docutils literal"><span class="pre">starts</span></code>: Each start position of each samples. </li>
<li><code class="docutils literal"><span class="pre">inputValue</span></code>: The input values. </li>
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</ul>
</dd>
</dl>
</p>
</dd></dl>
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<dl class="function">
<dt id="_CPPv2N6paddle9LstmLayer16backwardSequenceEi6size_tPKi9MatrixPtr">
<span id="paddle::LstmLayer::backwardSequence__i.s.iCP.MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1a061ea3b73bb124323d7ad98b66c54599"></span>void <code class="descname">backwardSequence</code><span class="sig-paren">(</span>int <em>batchSize</em>, size_t <em>numSequences</em>, <em class="property">const</em> int *<em>starts</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <em>inputGrad</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer16backwardSequenceEi6size_tPKi9MatrixPtr" title="Permalink to this definition">¶</a></dt>
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<dd><p>Compute lstm backward one sequence by one sequence. </p>
</dd></dl>
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<dl class="function">
<dt id="_CPPv2N6paddle9LstmLayer12forwardBatchEi6size_tPKi9MatrixPtr">
<span id="paddle::LstmLayer::forwardBatch__i.s.iCP.MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1a624184a9640f140295e245ea6f2a0512"></span>void <code class="descname">forwardBatch</code><span class="sig-paren">(</span>int <em>batchSize</em>, size_t <em>numSequences</em>, <em class="property">const</em> int *<em>starts</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <em>inputValue</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer12forwardBatchEi6size_tPKi9MatrixPtr" title="Permalink to this definition">¶</a></dt>
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<dd><p>Compute lstm forward one batch by one batch. The batch value is reorganized by <a class="reference internal" href="#paddleclasspaddle_1_1SequenceToBatch"><span class="std std-ref">SequenceToBatch</span></a> class. The batch output value will be convert into sequence value after finishing forward. Here, one batch contains one word of each sample. If the length of each sample is not equality, the batch will not pads zero and contains less words. The total batch numbers are the max length of the sequence. The details can refer to <a class="reference internal" href="#paddleclasspaddle_1_1SequenceToBatch"><span class="std std-ref">SequenceToBatch</span></a> class. On GPU mode, it will launch GPU kernel for loop.</p>
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<p><div class="highlight-default"><div class="highlight"><pre><span></span><span class="k">for</span> <span class="p">(</span><span class="nb">int</span> <span class="n">i</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="n">i</span> <span class="o">&lt;</span> <span class="n">numBatch</span><span class="p">(</span><span class="n">max_sequence_length</span><span class="p">);</span> <span class="o">++</span><span class="n">i</span><span class="p">)</span> <span class="p">{</span>
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  <span class="n">compute</span> <span class="n">one</span> <span class="n">batch</span><span class="o">.</span>
<span class="p">}</span>
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</pre></div>
</div>
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 </p>
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</dd></dl>
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<dl class="function">
<dt id="_CPPv2N6paddle9LstmLayer13backwardBatchEi6size_tPKi9MatrixPtr">
<span id="paddle::LstmLayer::backwardBatch__i.s.iCP.MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1a6b1a32de1475fddfe16e62ebe0fabe86"></span>void <code class="descname">backwardBatch</code><span class="sig-paren">(</span>int <em>batchSize</em>, size_t <em>numSequences</em>, <em class="property">const</em> int *<em>starts</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <em>inputGrad</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer13backwardBatchEi6size_tPKi9MatrixPtr" title="Permalink to this definition">¶</a></dt>
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<dd><p>Compute lstm backward one batch by one batch. </p>
</dd></dl>
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<dl class="function">
<dt id="_CPPv2N6paddle9LstmLayer18forwardSeqParallelEi6size_tPKi9MatrixPtr">
<span id="paddle::LstmLayer::forwardSeqParallel__i.s.iCP.MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1a0a66e7f6daff5af7dadde2b33963f397"></span>void <code class="descname">forwardSeqParallel</code><span class="sig-paren">(</span>int <em>batchSize</em>, size_t <em>numSequences</em>, <em class="property">const</em> int *<em>starts</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <em>inputValue</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer18forwardSeqParallelEi6size_tPKi9MatrixPtr" title="Permalink to this definition">¶</a></dt>
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<dd><p>This function only supports GPU. It not need to reorganize input into batch value. It will launch one kernel to parallelly compute forward propagation in sequence level. </p>
</dd></dl>
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<dl class="function">
<dt id="_CPPv2N6paddle9LstmLayer19backwardSeqParallelEi6size_tPKi9MatrixPtr">
<span id="paddle::LstmLayer::backwardSeqParallel__i.s.iCP.MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1aace09a289970336e21f9be501f1bc481"></span>void <code class="descname">backwardSeqParallel</code><span class="sig-paren">(</span>int <em>batchSize</em>, size_t <em>numSequences</em>, <em class="property">const</em> int *<em>starts</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <em>inputGrad</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer19backwardSeqParallelEi6size_tPKi9MatrixPtr" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation corresponding to forwardSeqParallel. </p>
</dd></dl>
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<dl class="function">
<dt id="_CPPv2N6paddle9LstmLayer18getPrevBatchOutputE6size_t">
<span id="paddle::LstmLayer::getPrevBatchOutput__s"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1a7e4c94173d17f8820a81a8e268bb6964"></span>void <code class="descname">getPrevBatchOutput</code><span class="sig-paren">(</span>size_t <em>numSequences</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer18getPrevBatchOutputE6size_t" title="Permalink to this definition">¶</a></dt>
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<dd><p>This function is used for sequence generation and get output after forwardBatch. </p>
</dd></dl>
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<dl class="function">
<dt id="_CPPv2N6paddle9LstmLayer17getPrevBatchStateE6size_t">
<span id="paddle::LstmLayer::getPrevBatchState__s"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1ac122a861de83424fb20a9c6213ed24e2"></span>void <code class="descname">getPrevBatchState</code><span class="sig-paren">(</span>size_t <em>numSequences</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer17getPrevBatchStateE6size_t" title="Permalink to this definition">¶</a></dt>
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<dd><p>This function is used for sequence generation and get state after forwardBatch. </p>
</dd></dl>
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</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle9LstmLayer7weight_E">
<span id="paddle::LstmLayer::weight___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1a92459d3e28d0f40fae23a7a9b81a8b85"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">weight_</code><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer7weight_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>Learned parameters, shape: (size, 4*size). The weight ([size, 4*size]) contains <span class="math">\(W_{hi}, W_{hf}, W_{hc}, W_{ho}\)</span>. </p>
</dd></dl>
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<dl class="member">
<dt id="_CPPv2N6paddle9LstmLayer5bias_E">
<span id="paddle::LstmLayer::bias___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1ac4bec6e74d8c5b1059fd97e87c244e15"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">bias_</code><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer5bias_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>Learned bias parameter, shape: (1, 7 * size). The bias contains <span class="math">\(b_i, b_f, b_c, b_o\)</span> and <span class="math">\(W_{ci}, W_{cf}, W_{co}\)</span>. </p>
</dd></dl>
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<dl class="member">
<dt id="_CPPv2N6paddle9LstmLayer10localBias_E">
<span id="paddle::LstmLayer::localBias___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1a2776041d687f5386e5a06b4ca66e6c68"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">localBias_</code><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer10localBias_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>The reeal bias, point to <span class="math">\(b_i, b_f, b_c, b_o\)</span>. </p>
</dd></dl>
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<dl class="member">
<dt id="_CPPv2N6paddle9LstmLayer8checkIg_E">
<span id="paddle::LstmLayer::checkIg___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1aa5457444a9d9badfa9402a511fc26d43"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">checkIg_</code><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer8checkIg_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>The peephole connection for input gate. </p>
</dd></dl>
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<dl class="member">
<dt id="_CPPv2N6paddle9LstmLayer8checkFg_E">
<span id="paddle::LstmLayer::checkFg___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1aad87b56f463f7b0460e227e2d819dd9d"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">checkFg_</code><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer8checkFg_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>The peephole connection for forget gate. </p>
</dd></dl>
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<dl class="member">
<dt id="_CPPv2N6paddle9LstmLayer8checkOg_E">
<span id="paddle::LstmLayer::checkOg___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1a9ed73496e458c389c3257559721de078"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">checkOg_</code><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer8checkOg_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>The peephole connection for output gate. </p>
</dd></dl>
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<dl class="member">
<dt id="_CPPv2N6paddle9LstmLayer14localBiasGrad_E">
<span id="paddle::LstmLayer::localBiasGrad___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1a9ea1fed33a8f44d2907712d4959d4e68"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">localBiasGrad_</code><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer14localBiasGrad_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>The gradient of real bias. </p>
</dd></dl>
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<dl class="member">
<dt id="_CPPv2N6paddle9LstmLayer12checkIgGrad_E">
<span id="paddle::LstmLayer::checkIgGrad___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1a7356cbc10b129b84cc4dee666e18e2ae"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">checkIgGrad_</code><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer12checkIgGrad_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>The gradient of peephole connection for input gates. </p>
</dd></dl>
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<dl class="member">
<dt id="_CPPv2N6paddle9LstmLayer12checkFgGrad_E">
<span id="paddle::LstmLayer::checkFgGrad___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1ac69563893568b98eb3f9e1d67724a5ca"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">checkFgGrad_</code><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer12checkFgGrad_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>The gradient of peephole connection for forget gates. </p>
</dd></dl>
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<dl class="member">
<dt id="_CPPv2N6paddle9LstmLayer12checkOgGrad_E">
<span id="paddle::LstmLayer::checkOgGrad___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1af0c44e0bc913f4f49c291d0a566a6368"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">checkOgGrad_</code><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer12checkOgGrad_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>The gradient of peephole connection for output gates. </p>
</dd></dl>
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<dl class="member">
<dt id="_CPPv2N6paddle9LstmLayer6state_E">
<span id="paddle::LstmLayer::state___Argument"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1a578ea77a3a2937f4c11d5e85abb540d9"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> <code class="descname">state_</code><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer6state_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>Stores the cell state of previous time step, namely <span class="math">\(c_{t-1}\)</span>. </p>
</dd></dl>
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<dl class="member">
<dt id="_CPPv2N6paddle9LstmLayer10preOutput_E">
<span id="paddle::LstmLayer::preOutput___Argument"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1a30848b02cc2723995620b7a57d50d7a2"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> <code class="descname">preOutput_</code><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer10preOutput_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>Stores the hidden of previous time step, namely <span class="math">\(h_{t-1}\)</span>. </p>
</dd></dl>
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<dl class="member">
<dt id="_CPPv2N6paddle9LstmLayer5gate_E">
<span id="paddle::LstmLayer::gate___Argument"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1a3b11e8c505af58c777a097a9a3640360"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> <code class="descname">gate_</code><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer5gate_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>Stores the value and gradient of four gates, namely <span class="math">\(i_t, f_t, o_t, c_t\)</span>. </p>
</dd></dl>
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<dl class="member">
<dt id="_CPPv2N6paddle9LstmLayer9reversed_E">
<span id="paddle::LstmLayer::reversed___b"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1aefb72d6398ca27883185f26e6b568e48"></span>bool <code class="descname">reversed_</code><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer9reversed_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>Whether it is reversed lstm. </p>
</dd></dl>
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<dl class="member">
<dt id="_CPPv2N6paddle9LstmLayer9useBatch_E">
<span id="paddle::LstmLayer::useBatch___b"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1ab367f4c61fd5a3e03d8be8b1f1c922b3"></span>bool <code class="descname">useBatch_</code><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer9useBatch_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>Whether to use batch method to compute. </p>
</dd></dl>
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<dl class="member">
<dt id="_CPPv2N6paddle9LstmLayer15useSeqParallel_E">
<span id="paddle::LstmLayer::useSeqParallel___b"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1a031e723b62ade9fc6b2cc6a1aee01b55"></span>bool <code class="descname">useSeqParallel_</code><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer15useSeqParallel_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>Whether to use sequence parallell method to compute. </p>
</dd></dl>
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<dl class="member">
<dt id="_CPPv2N6paddle9LstmLayer11batchValue_E">
<span id="paddle::LstmLayer::batchValue___std::unique_ptr:SequenceToBatch:"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1a74ae42b89d0634d05cf7d7eb823879c7"></span>std::unique_ptr&lt;<a class="reference internal" href="#_CPPv2N6paddle15SequenceToBatchE" title="paddle::SequenceToBatch">SequenceToBatch</a>&gt; <code class="descname">batchValue_</code><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer11batchValue_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>batchValue_ is used in method of batch calculation. It stores the batch value after reorganized input. </p>
</dd></dl>
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<dl class="member">
<dt id="_CPPv2N6paddle9LstmLayer10batchGrad_E">
<span id="paddle::LstmLayer::batchGrad___std::unique_ptr:SequenceToBatch:"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1afab99330c37418be2aca740408b7fe85"></span>std::unique_ptr&lt;<a class="reference internal" href="#_CPPv2N6paddle15SequenceToBatchE" title="paddle::SequenceToBatch">SequenceToBatch</a>&gt; <code class="descname">batchGrad_</code><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer10batchGrad_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>The gradient of batchValue_. </p>
</dd></dl>
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<dl class="member">
<dt id="_CPPv2N6paddle9LstmLayer10prevState_E">
<span id="paddle::LstmLayer::prevState___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1a30bd80ec9bbb342f69cc429b4a1db7bf"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">prevState_</code><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer10prevState_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>Used in generation and stores the state of previous time step. </p>
</dd></dl>
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<dl class="member">
<dt id="_CPPv2N6paddle9LstmLayer11prevOutput_E">
<span id="paddle::LstmLayer::prevOutput___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1a05637ccdbbbc6224bdb2e214a1c21e14"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">prevOutput_</code><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer11prevOutput_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>Used in generation and stores the output of previous time step. </p>
</dd></dl>
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<dl class="member">
<dt id="_CPPv2N6paddle9LstmLayer17prevBatchOutput2_E">
<span id="paddle::LstmLayer::prevBatchOutput2___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1a28a88105d01a0d3f9a7f8db88253003e"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">prevBatchOutput2_</code><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer17prevBatchOutput2_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle9LstmLayer11totalState_E">
<span id="paddle::LstmLayer::totalState___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LstmLayer_1a6b5837563860f057c8289518f782832b"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">totalState_</code><a class="headerlink" href="#_CPPv2N6paddle9LstmLayer11totalState_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>The total state. </p>
</dd></dl>
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</div>
</dd></dl>

</div>
<div class="section" id="lstmsteplayer">
<h3>LstmStepLayer<a class="headerlink" href="#lstmsteplayer" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="_CPPv2N6paddle13LstmStepLayerE">
<span id="paddle::LstmStepLayer"></span><span class="target" id="paddleclasspaddle_1_1LstmStepLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">LstmStepLayer</code><a class="headerlink" href="#_CPPv2N6paddle13LstmStepLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1LstmCompute"><span class="std std-ref">paddle::LstmCompute</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle13LstmStepLayer13LstmStepLayerERK11LayerConfig">
<span id="paddle::LstmStepLayer::LstmStepLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1LstmStepLayer_1a509f50cfc015ea7f82abbe7990568eda"></span><code class="descname">LstmStepLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13LstmStepLayer13LstmStepLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13LstmStepLayerD0Ev">
<span id="paddle::LstmStepLayer::~LstmStepLayer"></span><span class="target" id="paddleclasspaddle_1_1LstmStepLayer_1ade04c2e21640d3c25f5d3f185d5469a1"></span><code class="descname">~LstmStepLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13LstmStepLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13LstmStepLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::LstmStepLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1LstmStepLayer_1a794c401dbaedae6f119fc4dd2ac49950"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13LstmStepLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13LstmStepLayer7forwardE8PassType">
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<span id="paddle::LstmStepLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1LstmStepLayer_1ac922a29656d65f2e999c641e4edc8b69"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13LstmStepLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13LstmStepLayer8backwardERK14UpdateCallback">
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<span id="paddle::LstmStepLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1LstmStepLayer_1a3f6214e06bd0eb6534b4cb9d4847b71d"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13LstmStepLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle13LstmStepLayer6state_E">
<span id="paddle::LstmStepLayer::state___Argument"></span><span class="target" id="paddleclasspaddle_1_1LstmStepLayer_1ac685e097d3980d12d21fdee653c5a242"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> <code class="descname">state_</code><a class="headerlink" href="#_CPPv2N6paddle13LstmStepLayer6state_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13LstmStepLayer5gate_E">
<span id="paddle::LstmStepLayer::gate___Argument"></span><span class="target" id="paddleclasspaddle_1_1LstmStepLayer_1a620e1be9bd694a03385ab947f35d9a48"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> <code class="descname">gate_</code><a class="headerlink" href="#_CPPv2N6paddle13LstmStepLayer5gate_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13LstmStepLayer12stateActive_E">
<span id="paddle::LstmStepLayer::stateActive___Argument"></span><span class="target" id="paddleclasspaddle_1_1LstmStepLayer_1a56b8984e1068eb7912045c48e6053100"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> <code class="descname">stateActive_</code><a class="headerlink" href="#_CPPv2N6paddle13LstmStepLayer12stateActive_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13LstmStepLayer8checkIg_E">
<span id="paddle::LstmStepLayer::checkIg___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LstmStepLayer_1ab45f50312805d5dd1479564356a54d22"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">checkIg_</code><a class="headerlink" href="#_CPPv2N6paddle13LstmStepLayer8checkIg_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13LstmStepLayer8checkFg_E">
<span id="paddle::LstmStepLayer::checkFg___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LstmStepLayer_1aa32e29957bf96d63c682d97b2515e50d"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">checkFg_</code><a class="headerlink" href="#_CPPv2N6paddle13LstmStepLayer8checkFg_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13LstmStepLayer8checkOg_E">
<span id="paddle::LstmStepLayer::checkOg___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LstmStepLayer_1a1e43f6d15f2b2d2bd1564dfb506393e4"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">checkOg_</code><a class="headerlink" href="#_CPPv2N6paddle13LstmStepLayer8checkOg_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13LstmStepLayer12checkIgGrad_E">
<span id="paddle::LstmStepLayer::checkIgGrad___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LstmStepLayer_1abe52a745028a53a03ac3892ea6a4a22d"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">checkIgGrad_</code><a class="headerlink" href="#_CPPv2N6paddle13LstmStepLayer12checkIgGrad_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13LstmStepLayer12checkFgGrad_E">
<span id="paddle::LstmStepLayer::checkFgGrad___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LstmStepLayer_1a70974f3a29ef5339d53bf124339fcc41"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">checkFgGrad_</code><a class="headerlink" href="#_CPPv2N6paddle13LstmStepLayer12checkFgGrad_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13LstmStepLayer12checkOgGrad_E">
<span id="paddle::LstmStepLayer::checkOgGrad___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LstmStepLayer_1ae2b90b34b836a61de780a7b565f7fabc"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">checkOgGrad_</code><a class="headerlink" href="#_CPPv2N6paddle13LstmStepLayer12checkOgGrad_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13LstmStepLayer7weight_E">
<span id="paddle::LstmStepLayer::weight___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1LstmStepLayer_1ad1666ff575f91e5ce616945e6802717b"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">weight_</code><a class="headerlink" href="#_CPPv2N6paddle13LstmStepLayer7weight_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="lstmcompute">
<h3>LstmCompute<a class="headerlink" href="#lstmcompute" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="_CPPv2N6paddle11LstmComputeE">
<span id="paddle::LstmCompute"></span><span class="target" id="paddleclasspaddle_1_1LstmCompute"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">LstmCompute</code><a class="headerlink" href="#_CPPv2N6paddle11LstmComputeE" title="Permalink to this definition">¶</a></dt>
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<dd><p>Subclassed by <a class="reference internal" href="#paddleclasspaddle_1_1LstmLayer"><span class="std std-ref">paddle::LstmLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1LstmStepLayer"><span class="std std-ref">paddle::LstmStepLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle11LstmCompute4initER11LayerConfig">
<span id="paddle::LstmCompute::init__LayerConfigR"></span><span class="target" id="paddleclasspaddle_1_1LstmCompute_1a2901259341430edceeb031a4ffb9de6e"></span>void <code class="descname">init</code><span class="sig-paren">(</span>LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11LstmCompute4initER11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt>
<em class="property">template </em>&lt;bool <em>useGpu</em>&gt;</dt>
<dt id="_CPPv2N6paddle11LstmCompute12forwardBatchE13hl_lstm_valueii">
<span id="paddle::LstmCompute::forwardBatch__hl_lstm_value.i.i"></span><span class="target" id="paddleclasspaddle_1_1LstmCompute_1ac829b94d8ca20662603956df53c69d16"></span>void <code class="descname">forwardBatch</code><span class="sig-paren">(</span><a class="reference internal" href="../../cuda/utils/utils.html#_CPPv213hl_lstm_value" title="hl_lstm_value">hl_lstm_value</a> <em>value</em>, int <em>frameSize</em>, int <em>batchSize</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11LstmCompute12forwardBatchE13hl_lstm_valueii" title="Permalink to this definition">¶</a></dt>
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<dd><p><a class="reference internal" href="#paddleclasspaddle_1_1LstmLayer"><span class="std std-ref">LstmLayer</span></a> batch compute API (forwardBatch, backwardBatch). If use batch compute api, lstm value(and grad) need to be batch structure. Compute order: forwardBatch: for 0 &lt;= id &lt; numBatch backwardBatch: for numBatch &gt; id &gt;= 0 </p>
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</dd></dl>

<dl class="function">
<dt>
<em class="property">template </em>&lt;bool <em>useGpu</em>&gt;</dt>
<dt id="_CPPv2N6paddle11LstmCompute13backwardBatchE13hl_lstm_value12hl_lstm_gradii">
<span id="paddle::LstmCompute::backwardBatch__hl_lstm_value.hl_lstm_grad.i.i"></span><span class="target" id="paddleclasspaddle_1_1LstmCompute_1a3073e45387fce5f45f8f90d5e9f2dfac"></span>void <code class="descname">backwardBatch</code><span class="sig-paren">(</span><a class="reference internal" href="../../cuda/utils/utils.html#_CPPv213hl_lstm_value" title="hl_lstm_value">hl_lstm_value</a> <em>value</em>, <a class="reference internal" href="../../cuda/utils/utils.html#_CPPv212hl_lstm_grad" title="hl_lstm_grad">hl_lstm_grad</a> <em>grad</em>, int <em>frameSize</em>, int <em>batchSize</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11LstmCompute13backwardBatchE13hl_lstm_value12hl_lstm_gradii" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt>
<em class="property">template </em>&lt;bool <em>useGpu</em>&gt;</dt>
<dt id="_CPPv2N6paddle11LstmCompute18forwardOneSequenceE13hl_lstm_valuei">
<span id="paddle::LstmCompute::forwardOneSequence__hl_lstm_value.i"></span><span class="target" id="paddleclasspaddle_1_1LstmCompute_1acb017d1cac348c6c4597c7cf19b7d8b9"></span>void <code class="descname">forwardOneSequence</code><span class="sig-paren">(</span><a class="reference internal" href="../../cuda/utils/utils.html#_CPPv213hl_lstm_value" title="hl_lstm_value">hl_lstm_value</a> <em>value</em>, int <em>frameSize</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11LstmCompute18forwardOneSequenceE13hl_lstm_valuei" title="Permalink to this definition">¶</a></dt>
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<dd><p><a class="reference internal" href="#paddleclasspaddle_1_1LstmLayer"><span class="std std-ref">LstmLayer</span></a> sequence compute API (forwardOneSequence, backwardOneSequence). Compute order(for each sequence): forwardOneSequence: if (!reversed) for 0 &lt;= seqId &lt; seqLength if (reversed) for seqLength &gt; seqId &gt;= 0 backwardOneSequence: if (!reversed) for seqLength &gt; seqId &gt;= 0 if (reversed) for 0 &lt;= seqId &lt; seqLength </p>
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</dd></dl>

<dl class="function">
<dt>
<em class="property">template </em>&lt;bool <em>useGpu</em>&gt;</dt>
<dt id="_CPPv2N6paddle11LstmCompute19backwardOneSequenceE13hl_lstm_value12hl_lstm_gradi">
<span id="paddle::LstmCompute::backwardOneSequence__hl_lstm_value.hl_lstm_grad.i"></span><span class="target" id="paddleclasspaddle_1_1LstmCompute_1a2fe33ee1f885aa4624a76e74ca6fa2c1"></span>void <code class="descname">backwardOneSequence</code><span class="sig-paren">(</span><a class="reference internal" href="../../cuda/utils/utils.html#_CPPv213hl_lstm_value" title="hl_lstm_value">hl_lstm_value</a> <em>value</em>, <a class="reference internal" href="../../cuda/utils/utils.html#_CPPv212hl_lstm_grad" title="hl_lstm_grad">hl_lstm_grad</a> <em>grad</em>, int <em>frameSize</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11LstmCompute19backwardOneSequenceE13hl_lstm_value12hl_lstm_gradi" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt>
<em class="property">template </em>&lt;&gt;</dt>
<dt id="_CPPv2N6paddle11LstmCompute18forwardOneSequenceE13hl_lstm_valuei">
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<span class="target" id="paddleclasspaddle_1_1LstmCompute_1acd37b3679f7608988e6c53a6e13381f1"></span>void <code class="descname">forwardOneSequence</code><span class="sig-paren">(</span><a class="reference internal" href="../../cuda/utils/utils.html#_CPPv213hl_lstm_value" title="hl_lstm_value">hl_lstm_value</a> <em>value</em>, int <em>frameSize</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11LstmCompute18forwardOneSequenceE13hl_lstm_valuei" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt>
<em class="property">template </em>&lt;&gt;</dt>
<dt id="_CPPv2N6paddle11LstmCompute19backwardOneSequenceE13hl_lstm_value12hl_lstm_gradi">
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<span class="target" id="paddleclasspaddle_1_1LstmCompute_1abca4b43a34eb736e998008e65d09930e"></span>void <code class="descname">backwardOneSequence</code><span class="sig-paren">(</span><a class="reference internal" href="../../cuda/utils/utils.html#_CPPv213hl_lstm_value" title="hl_lstm_value">hl_lstm_value</a> <em>value</em>, <a class="reference internal" href="../../cuda/utils/utils.html#_CPPv212hl_lstm_grad" title="hl_lstm_grad">hl_lstm_grad</a> <em>grad</em>, int <em>frameSize</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11LstmCompute19backwardOneSequenceE13hl_lstm_value12hl_lstm_gradi" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt>
<em class="property">template </em>&lt;&gt;</dt>
<dt id="_CPPv2N6paddle11LstmCompute12forwardBatchE13hl_lstm_valueii">
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<span class="target" id="paddleclasspaddle_1_1LstmCompute_1aaa41296c8c04d97bef931bea5f6d500d"></span>void <code class="descname">forwardBatch</code><span class="sig-paren">(</span><a class="reference internal" href="../../cuda/utils/utils.html#_CPPv213hl_lstm_value" title="hl_lstm_value">hl_lstm_value</a> <em>value</em>, int <em>frameSize</em>, int <em>batchSize</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11LstmCompute12forwardBatchE13hl_lstm_valueii" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt>
<em class="property">template </em>&lt;&gt;</dt>
<dt id="_CPPv2N6paddle11LstmCompute13backwardBatchE13hl_lstm_value12hl_lstm_gradii">
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<span class="target" id="paddleclasspaddle_1_1LstmCompute_1a0a3fe95b3c613c864cee0fc74e354e49"></span>void <code class="descname">backwardBatch</code><span class="sig-paren">(</span><a class="reference internal" href="../../cuda/utils/utils.html#_CPPv213hl_lstm_value" title="hl_lstm_value">hl_lstm_value</a> <em>value</em>, <a class="reference internal" href="../../cuda/utils/utils.html#_CPPv212hl_lstm_grad" title="hl_lstm_grad">hl_lstm_grad</a> <em>grad</em>, int <em>frameSize</em>, int <em>batchSize</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11LstmCompute13backwardBatchE13hl_lstm_value12hl_lstm_gradii" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt>
<em class="property">template </em>&lt;&gt;</dt>
<dt>
<span class="target" id="paddleclasspaddle_1_1LstmCompute_1aaa41296c8c04d97bef931bea5f6d500d"></span>void <code class="descname">forwardBatch</code><span class="sig-paren">(</span><a class="reference internal" href="../../cuda/utils/utils.html#_CPPv213hl_lstm_value" title="hl_lstm_value">hl_lstm_value</a> <em>value</em>, int <em>frameSize</em>, int <em>batchSize</em><span class="sig-paren">)</span></dt>
<dd></dd></dl>

<dl class="function">
<dt>
<em class="property">template </em>&lt;&gt;</dt>
<dt>
<span class="target" id="paddleclasspaddle_1_1LstmCompute_1a0a3fe95b3c613c864cee0fc74e354e49"></span>void <code class="descname">backwardBatch</code><span class="sig-paren">(</span><a class="reference internal" href="../../cuda/utils/utils.html#_CPPv213hl_lstm_value" title="hl_lstm_value">hl_lstm_value</a> <em>value</em>, <a class="reference internal" href="../../cuda/utils/utils.html#_CPPv212hl_lstm_grad" title="hl_lstm_grad">hl_lstm_grad</a> <em>grad</em>, int <em>frameSize</em>, int <em>batchSize</em><span class="sig-paren">)</span></dt>
<dd></dd></dl>

<dl class="function">
<dt>
<em class="property">template </em>&lt;&gt;</dt>
<dt>
<span class="target" id="paddleclasspaddle_1_1LstmCompute_1acd37b3679f7608988e6c53a6e13381f1"></span>void <code class="descname">forwardOneSequence</code><span class="sig-paren">(</span><a class="reference internal" href="../../cuda/utils/utils.html#_CPPv213hl_lstm_value" title="hl_lstm_value">hl_lstm_value</a> <em>value</em>, int <em>frameSize</em><span class="sig-paren">)</span></dt>
<dd></dd></dl>

<dl class="function">
<dt>
<em class="property">template </em>&lt;&gt;</dt>
<dt>
<span class="target" id="paddleclasspaddle_1_1LstmCompute_1abca4b43a34eb736e998008e65d09930e"></span>void <code class="descname">backwardOneSequence</code><span class="sig-paren">(</span><a class="reference internal" href="../../cuda/utils/utils.html#_CPPv213hl_lstm_value" title="hl_lstm_value">hl_lstm_value</a> <em>value</em>, <a class="reference internal" href="../../cuda/utils/utils.html#_CPPv212hl_lstm_grad" title="hl_lstm_grad">hl_lstm_grad</a> <em>grad</em>, int <em>frameSize</em><span class="sig-paren">)</span></dt>
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<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Members</p>
<dl class="member">
<dt id="_CPPv2N6paddle11LstmCompute11activeNode_E">
<span id="paddle::LstmCompute::activeNode___hl_activation_mode_t"></span><span class="target" id="paddleclasspaddle_1_1LstmCompute_1a956c1b1b43a4fc7195fa827de92a0d61"></span><a class="reference internal" href="../../cuda/utils/utils.html#_CPPv220hl_activation_mode_t" title="hl_activation_mode_t">hl_activation_mode_t</a> <code class="descname">activeNode_</code><a class="headerlink" href="#_CPPv2N6paddle11LstmCompute11activeNode_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle11LstmCompute11activeGate_E">
<span id="paddle::LstmCompute::activeGate___hl_activation_mode_t"></span><span class="target" id="paddleclasspaddle_1_1LstmCompute_1a65f7acb7397a62e7c77b6139f516ab1f"></span><a class="reference internal" href="../../cuda/utils/utils.html#_CPPv220hl_activation_mode_t" title="hl_activation_mode_t">hl_activation_mode_t</a> <code class="descname">activeGate_</code><a class="headerlink" href="#_CPPv2N6paddle11LstmCompute11activeGate_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle11LstmCompute12activeState_E">
<span id="paddle::LstmCompute::activeState___hl_activation_mode_t"></span><span class="target" id="paddleclasspaddle_1_1LstmCompute_1ab29f59f2e5c6f1b025d48dcce438a8ea"></span><a class="reference internal" href="../../cuda/utils/utils.html#_CPPv220hl_activation_mode_t" title="hl_activation_mode_t">hl_activation_mode_t</a> <code class="descname">activeState_</code><a class="headerlink" href="#_CPPv2N6paddle11LstmCompute12activeState_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
</div>
<div class="section" id="mdlstm">
<h2>MDLSTM<a class="headerlink" href="#mdlstm" title="Permalink to this headline">¶</a></h2>
<div class="section" id="mdlstmlayer">
<h3>MDLstmLayer<a class="headerlink" href="#mdlstmlayer" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="_CPPv2N6paddle11MDLstmLayerE">
<span id="paddle::MDLstmLayer"></span><span class="target" id="paddleclasspaddle_1_1MDLstmLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">MDLstmLayer</code><a class="headerlink" href="#_CPPv2N6paddle11MDLstmLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1LstmLayer"><span class="std std-ref">paddle::LstmLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle11MDLstmLayer11MDLstmLayerERK11LayerConfig">
<span id="paddle::MDLstmLayer::MDLstmLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1MDLstmLayer_1af1d1bd54aab2b59e803377296c82260d"></span><code class="descname">MDLstmLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11MDLstmLayer11MDLstmLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11MDLstmLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::MDLstmLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1MDLstmLayer_1ad2f3499b8504ee78295c76f35f0829c0"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11MDLstmLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11MDLstmLayer7forwardE8PassType">
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<span id="paddle::MDLstmLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1MDLstmLayer_1ad03ff2fc65f95abf82ea54c0cb4c7b92"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11MDLstmLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11MDLstmLayer8backwardERK14UpdateCallback">
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<span id="paddle::MDLstmLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1MDLstmLayer_1ae4014114a5265aba313eb6136e955bf5"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11MDLstmLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle11MDLstmLayer18forwardOneSequenceEiR13CoordIterator">
<span id="paddle::MDLstmLayer::forwardOneSequence__i.CoordIteratorR"></span><span class="target" id="paddleclasspaddle_1_1MDLstmLayer_1a8f327d5aff8287a905b87d52feae1cd6"></span>void <code class="descname">forwardOneSequence</code><span class="sig-paren">(</span>int <em>start</em>, <a class="reference internal" href="#_CPPv2N6paddle13CoordIteratorE" title="paddle::CoordIterator">CoordIterator</a> &amp;<em>coordIter</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11MDLstmLayer18forwardOneSequenceEiR13CoordIterator" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11MDLstmLayer19backwardOneSequenceEiR13CoordIterator">
<span id="paddle::MDLstmLayer::backwardOneSequence__i.CoordIteratorR"></span><span class="target" id="paddleclasspaddle_1_1MDLstmLayer_1a9ece013357892aba1ae304302a260713"></span>void <code class="descname">backwardOneSequence</code><span class="sig-paren">(</span>int <em>start</em>, <a class="reference internal" href="#_CPPv2N6paddle13CoordIteratorE" title="paddle::CoordIterator">CoordIterator</a> &amp;<em>coordIter</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11MDLstmLayer19backwardOneSequenceEiR13CoordIterator" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11MDLstmLayer26forwardGate2OutputSequenceEiR13CoordIterator">
<span id="paddle::MDLstmLayer::forwardGate2OutputSequence__i.CoordIteratorR"></span><span class="target" id="paddleclasspaddle_1_1MDLstmLayer_1a1491fc112f9cb3a5133eb9f260e871d1"></span>void <code class="descname">forwardGate2OutputSequence</code><span class="sig-paren">(</span>int <em>start</em>, <a class="reference internal" href="#_CPPv2N6paddle13CoordIteratorE" title="paddle::CoordIterator">CoordIterator</a> &amp;<em>coordIter</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11MDLstmLayer26forwardGate2OutputSequenceEiR13CoordIterator" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11MDLstmLayer27backwardGate2OutputSequenceEiR13CoordIterator">
<span id="paddle::MDLstmLayer::backwardGate2OutputSequence__i.CoordIteratorR"></span><span class="target" id="paddleclasspaddle_1_1MDLstmLayer_1afec849401d6abd539358f708e6049333"></span>void <code class="descname">backwardGate2OutputSequence</code><span class="sig-paren">(</span>int <em>start</em>, <a class="reference internal" href="#_CPPv2N6paddle13CoordIteratorE" title="paddle::CoordIterator">CoordIterator</a> &amp;<em>coordIter</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11MDLstmLayer27backwardGate2OutputSequenceEiR13CoordIterator" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle11MDLstmLayer15frameInputGate_E">
<span id="paddle::MDLstmLayer::frameInputGate___std::vector:Argument:"></span><span class="target" id="paddleclasspaddle_1_1MDLstmLayer_1a38aea8b3ae783dc5169fd9d6b94e4545"></span>std::vector&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a>&gt; <code class="descname">frameInputGate_</code><a class="headerlink" href="#_CPPv2N6paddle11MDLstmLayer15frameInputGate_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle11MDLstmLayer16frameForgetGate_E">
<span id="paddle::MDLstmLayer::frameForgetGate___std::vector:Argument:"></span><span class="target" id="paddleclasspaddle_1_1MDLstmLayer_1aafad88a6d81195f9f64bf069f1be48c7"></span>std::vector&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a>&gt; <code class="descname">frameForgetGate_</code><a class="headerlink" href="#_CPPv2N6paddle11MDLstmLayer16frameForgetGate_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle11MDLstmLayer16frameOutputGate_E">
<span id="paddle::MDLstmLayer::frameOutputGate___std::vector:Argument:"></span><span class="target" id="paddleclasspaddle_1_1MDLstmLayer_1a1aafc8d4edbb95a2bde56c3146dbfa86"></span>std::vector&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a>&gt; <code class="descname">frameOutputGate_</code><a class="headerlink" href="#_CPPv2N6paddle11MDLstmLayer16frameOutputGate_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle11MDLstmLayer15frameInputNode_E">
<span id="paddle::MDLstmLayer::frameInputNode___std::vector:Argument:"></span><span class="target" id="paddleclasspaddle_1_1MDLstmLayer_1ab31eb0ded69fc91ff61fd644c1238e54"></span>std::vector&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a>&gt; <code class="descname">frameInputNode_</code><a class="headerlink" href="#_CPPv2N6paddle11MDLstmLayer15frameInputNode_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle11MDLstmLayer10frameGate_E">
<span id="paddle::MDLstmLayer::frameGate___std::vector:Argument:"></span><span class="target" id="paddleclasspaddle_1_1MDLstmLayer_1a32a1fbb9e6a6955780e8c25799624991"></span>std::vector&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a>&gt; <code class="descname">frameGate_</code><a class="headerlink" href="#_CPPv2N6paddle11MDLstmLayer10frameGate_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle11MDLstmLayer11frameState_E">
<span id="paddle::MDLstmLayer::frameState___std::vector:Argument:"></span><span class="target" id="paddleclasspaddle_1_1MDLstmLayer_1a38732cd7cc5c6cb634a9a036b609c585"></span>std::vector&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a>&gt; <code class="descname">frameState_</code><a class="headerlink" href="#_CPPv2N6paddle11MDLstmLayer11frameState_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle11MDLstmLayer15framePreOutput_E">
<span id="paddle::MDLstmLayer::framePreOutput___std::vector:Argument:"></span><span class="target" id="paddleclasspaddle_1_1MDLstmLayer_1a87878b96121e1cca79ce5d77d0fea69e"></span>std::vector&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a>&gt; <code class="descname">framePreOutput_</code><a class="headerlink" href="#_CPPv2N6paddle11MDLstmLayer15framePreOutput_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle11MDLstmLayer12frameOutput_E">
<span id="paddle::MDLstmLayer::frameOutput___std::vector:Argument:"></span><span class="target" id="paddleclasspaddle_1_1MDLstmLayer_1a1b87e8496bf4e4b868ce6c6ae07a6abd"></span>std::vector&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a>&gt; <code class="descname">frameOutput_</code><a class="headerlink" href="#_CPPv2N6paddle11MDLstmLayer12frameOutput_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle11MDLstmLayer15activationGate_E">
<span id="paddle::MDLstmLayer::activationGate___std::unique_ptr:ActivationFunction:"></span><span class="target" id="paddleclasspaddle_1_1MDLstmLayer_1a63f6cbbe4446bcb00c1984145cb28086"></span>std::unique_ptr&lt;<a class="reference internal" href="../activations/index.html#_CPPv2N6paddle18ActivationFunctionE" title="paddle::ActivationFunction">ActivationFunction</a>&gt; <code class="descname">activationGate_</code><a class="headerlink" href="#_CPPv2N6paddle11MDLstmLayer15activationGate_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle11MDLstmLayer16activationState_E">
<span id="paddle::MDLstmLayer::activationState___std::unique_ptr:ActivationFunction:"></span><span class="target" id="paddleclasspaddle_1_1MDLstmLayer_1a68db4ca28856de6cae646d9a097bc4c6"></span>std::unique_ptr&lt;<a class="reference internal" href="../activations/index.html#_CPPv2N6paddle18ActivationFunctionE" title="paddle::ActivationFunction">ActivationFunction</a>&gt; <code class="descname">activationState_</code><a class="headerlink" href="#_CPPv2N6paddle11MDLstmLayer16activationState_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle11MDLstmLayer8numDims_E">
<span id="paddle::MDLstmLayer::numDims___i"></span><span class="target" id="paddleclasspaddle_1_1MDLstmLayer_1a21cb3afb40ec3beaa7821db51bea1d2a"></span>int <code class="descname">numDims_</code><a class="headerlink" href="#_CPPv2N6paddle11MDLstmLayer8numDims_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle11MDLstmLayer10numBlocks_E">
<span id="paddle::MDLstmLayer::numBlocks___s"></span><span class="target" id="paddleclasspaddle_1_1MDLstmLayer_1a892e60d00b381ee5511e9e8de2e66bc5"></span>size_t <code class="descname">numBlocks_</code><a class="headerlink" href="#_CPPv2N6paddle11MDLstmLayer10numBlocks_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle11MDLstmLayer11directions_E">
<span id="paddle::MDLstmLayer::directions___std::vector:b:"></span><span class="target" id="paddleclasspaddle_1_1MDLstmLayer_1aebd91b89dc54ff39cabdb306bd2922e9"></span>std::vector&lt;bool&gt; <code class="descname">directions_</code><a class="headerlink" href="#_CPPv2N6paddle11MDLstmLayer11directions_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle11MDLstmLayer7delays_E">
<span id="paddle::MDLstmLayer::delays___std::vector:i:"></span><span class="target" id="paddleclasspaddle_1_1MDLstmLayer_1a79f4c174442de8b294ae9389886575fe"></span>std::vector&lt;int&gt; <code class="descname">delays_</code><a class="headerlink" href="#_CPPv2N6paddle11MDLstmLayer7delays_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle11MDLstmLayer6dimsV_E">
<span id="paddle::MDLstmLayer::dimsV___std::vector:std::vector:i::"></span><span class="target" id="paddleclasspaddle_1_1MDLstmLayer_1a062170a9f1a289f960e80005eb46664c"></span>std::vector&lt;std::vector&lt;int&gt;&gt; <code class="descname">dimsV_</code><a class="headerlink" href="#_CPPv2N6paddle11MDLstmLayer6dimsV_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="coorditerator">
<h3>CoordIterator<a class="headerlink" href="#coorditerator" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="_CPPv2N6paddle13CoordIteratorE">
<span id="paddle::CoordIterator"></span><span class="target" id="paddleclasspaddle_1_1CoordIterator"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">CoordIterator</code><a class="headerlink" href="#_CPPv2N6paddle13CoordIteratorE" title="Permalink to this definition">¶</a></dt>
<dd><div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle13CoordIterator4stepE6size_tb">
<span id="paddle::CoordIterator::step__s.b"></span><span class="target" id="paddleclasspaddle_1_1CoordIterator_1a3fcabf1de122e1bc57122094aa3551d1"></span>void <code class="descname">step</code><span class="sig-paren">(</span>size_t <em>d</em>, bool <em>reversed</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13CoordIterator4stepE6size_tb" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13CoordIterator13CoordIteratorENSt6vectorIiEENSt6vectorIbEE">
<span id="paddle::CoordIterator::CoordIterator__std::vector:i:.std::vector:b:"></span><span class="target" id="paddleclasspaddle_1_1CoordIterator_1a70b6ece3559e49658f33ca1608397359"></span><code class="descname">CoordIterator</code><span class="sig-paren">(</span>std::vector&lt;int&gt; <em>dim</em>, std::vector&lt;bool&gt; <em>directions</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13CoordIterator13CoordIteratorENSt6vectorIiEENSt6vectorIbEE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13CoordIteratorppEv">
3597
<span id="paddle::CoordIterator::inc-operator"></span><span class="target" id="paddleclasspaddle_1_1CoordIterator_1ada5a4725f3f7ea099e7badfe184cef44"></span><a class="reference internal" href="#_CPPv2N6paddle13CoordIteratorE" title="paddle::CoordIterator">CoordIterator</a> &amp;<code class="descname">operator++</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13CoordIteratorppEv" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13CoordIteratormmEv">
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<span id="paddle::CoordIterator::dec-operator"></span><span class="target" id="paddleclasspaddle_1_1CoordIterator_1a700a14104c452fa91a77ecffd12d74a2"></span><a class="reference internal" href="#_CPPv2N6paddle13CoordIteratorE" title="paddle::CoordIterator">CoordIterator</a> &amp;<code class="descname">operator--</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13CoordIteratormmEv" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13CoordIterator6curPosEv">
<span id="paddle::CoordIterator::curPos"></span><span class="target" id="paddleclasspaddle_1_1CoordIterator_1a2d6d5e1d6efa366404e7651c5eefd0ab"></span>std::vector&lt;int&gt; &amp;<code class="descname">curPos</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13CoordIterator6curPosEv" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13CoordIterator6offsetEv">
<span id="paddle::CoordIterator::offset"></span><span class="target" id="paddleclasspaddle_1_1CoordIterator_1a012947c3f8081677c59d55351a46205b"></span>int <code class="descname">offset</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13CoordIterator6offsetEv" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13CoordIterator6offsetERKNSt6vectorIiEE">
<span id="paddle::CoordIterator::offset__std::vector:i:CR"></span><span class="target" id="paddleclasspaddle_1_1CoordIterator_1a3abee425a7e1903696553db243c68c9f"></span>int <code class="descname">offset</code><span class="sig-paren">(</span><em class="property">const</em> std::vector&lt;int&gt; &amp;<em>pos</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13CoordIterator6offsetERKNSt6vectorIiEE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13CoordIterator5beginEv">
<span id="paddle::CoordIterator::begin"></span><span class="target" id="paddleclasspaddle_1_1CoordIterator_1a73f87c02f8acb0e0b6f09a097ea599b4"></span>std::vector&lt;int&gt; &amp;<code class="descname">begin</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13CoordIterator5beginEv" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13CoordIterator6rbeginEv">
<span id="paddle::CoordIterator::rbegin"></span><span class="target" id="paddleclasspaddle_1_1CoordIterator_1a33bd70f4072971543d9d9cfb6b861f00"></span>std::vector&lt;int&gt; &amp;<code class="descname">rbegin</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13CoordIterator6rbeginEv" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13CoordIterator3endEv">
<span id="paddle::CoordIterator::end"></span><span class="target" id="paddleclasspaddle_1_1CoordIterator_1a788ef14b3ffa7c209401baa284fbb5ab"></span>bool <code class="descname">end</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13CoordIterator3endEv" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13CoordIterator9getPrePosERKNSt6vectorIiEEiRNSt6vectorIiEE">
<span id="paddle::CoordIterator::getPrePos__std::vector:i:CR.i.std::vector:i:R"></span><span class="target" id="paddleclasspaddle_1_1CoordIterator_1a7cbecd56f58bced873f0eb70af558811"></span>bool <code class="descname">getPrePos</code><span class="sig-paren">(</span><em class="property">const</em> std::vector&lt;int&gt; &amp;<em>delays</em>, int <em>idx</em>, std::vector&lt;int&gt; &amp;<em>prePos</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13CoordIterator9getPrePosERKNSt6vectorIiEEiRNSt6vectorIiEE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13CoordIterator10getNextPosERKNSt6vectorIiEEiRNSt6vectorIiEE">
<span id="paddle::CoordIterator::getNextPos__std::vector:i:CR.i.std::vector:i:R"></span><span class="target" id="paddleclasspaddle_1_1CoordIterator_1a08deffeca6c0681e5ac7ba20a55930b4"></span>bool <code class="descname">getNextPos</code><span class="sig-paren">(</span><em class="property">const</em> std::vector&lt;int&gt; &amp;<em>delays</em>, int <em>idx</em>, std::vector&lt;int&gt; &amp;<em>nextPos</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13CoordIterator10getNextPosERKNSt6vectorIiEEiRNSt6vectorIiEE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Members</p>
<dl class="member">
<dt id="_CPPv2N6paddle13CoordIterator5dims_E">
<span id="paddle::CoordIterator::dims___std::vector:i:"></span><span class="target" id="paddleclasspaddle_1_1CoordIterator_1a08ccaa7190f4fe448801a7dc114ae14e"></span>std::vector&lt;int&gt; <code class="descname">dims_</code><a class="headerlink" href="#_CPPv2N6paddle13CoordIterator5dims_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13CoordIterator11directions_E">
<span id="paddle::CoordIterator::directions___std::vector:b:"></span><span class="target" id="paddleclasspaddle_1_1CoordIterator_1ac1789b8bd00df2ccaf44150385ed6217"></span>std::vector&lt;bool&gt; <code class="descname">directions_</code><a class="headerlink" href="#_CPPv2N6paddle13CoordIterator11directions_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13CoordIterator7curPos_E">
<span id="paddle::CoordIterator::curPos___std::vector:i:"></span><span class="target" id="paddleclasspaddle_1_1CoordIterator_1a08a9cbf9b5408d60ab8dc6e8ecf57d4a"></span>std::vector&lt;int&gt; <code class="descname">curPos_</code><a class="headerlink" href="#_CPPv2N6paddle13CoordIterator7curPos_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13CoordIterator4end_E">
<span id="paddle::CoordIterator::end___b"></span><span class="target" id="paddleclasspaddle_1_1CoordIterator_1a934158c1b4dcc73a3311f6617480d24f"></span>bool <code class="descname">end_</code><a class="headerlink" href="#_CPPv2N6paddle13CoordIterator4end_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
</div>
<div class="section" id="gru">
<h2>GRU<a class="headerlink" href="#gru" title="Permalink to this headline">¶</a></h2>
<div class="section" id="gatedrecurrentlayer">
<h3>GatedRecurrentLayer<a class="headerlink" href="#gatedrecurrentlayer" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="_CPPv2N6paddle19GatedRecurrentLayerE">
<span id="paddle::GatedRecurrentLayer"></span><span class="target" id="paddleclasspaddle_1_1GatedRecurrentLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">GatedRecurrentLayer</code><a class="headerlink" href="#_CPPv2N6paddle19GatedRecurrentLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>Please refer to &#8220;Junyoung Chung, Empirical Evaluation
of Gated Recurrent Neural Networks on Sequence Modeling&#8221;. </p>
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<p><a class="reference internal" href="#paddleclasspaddle_1_1GatedRecurrentLayer"><span class="std std-ref">GatedRecurrentLayer</span></a> takes 1 input layer with size * 3. Input layer is diveded into 3 equal parts: (xz_t, xr_t, xi_t). parameter and biasParameter is also diveded into 3 equal parts:<ul class="simple">
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<li>parameter consists of (U_z, U_r, U)</li>
<li>baisParameter consists of (bias_z, bias_r, bias_o)</li>
</ul>
</p>
<p><div class="math">
\[\begin{split} update \ gate: z_t = actGate(xz_t + U_z * h_{t-1} + bias_z) \\ reset \ gate: r_t = actGate(xr_t + U_r * h_{t-1} + bias_r) \\ output \ candidate: {h}_t = actNode(xi_t + U * dot(r_t, h_{t-1}) + bias_o) \\ hidden \ activation: h_t = dot((1-z_t), h_{t-1}) + dot(z_t, {h}_t) \\ \end{split}\]</div>
</p>
<p>
The config file is grumemory. <dl class="docutils">
<dt><strong>Note</strong></dt>
<dd><ul class="simple">
<li>dot denotes &#8220;element-wise multiplication&#8221;.</li>
<li>actNode is defined by config active_type</li>
<li>actGate is defined by config actvie_gate_type</li>
</ul>
</dd>
</dl>
</p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1GruCompute"><span class="std std-ref">paddle::GruCompute</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle19GatedRecurrentLayer19GatedRecurrentLayerERK11LayerConfig">
<span id="paddle::GatedRecurrentLayer::GatedRecurrentLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1GatedRecurrentLayer_1a0b35a6618f7eda290874f0da0b52a44c"></span><code class="descname">GatedRecurrentLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19GatedRecurrentLayer19GatedRecurrentLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19GatedRecurrentLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::GatedRecurrentLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1GatedRecurrentLayer_1a32521c51f0050ac033a848dd006ca3f6"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19GatedRecurrentLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19GatedRecurrentLayer7forwardE8PassType">
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<span id="paddle::GatedRecurrentLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1GatedRecurrentLayer_1aa5cc5b36e05da82811a8b073331c0754"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19GatedRecurrentLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19GatedRecurrentLayer8backwardERK14UpdateCallback">
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<span id="paddle::GatedRecurrentLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1GatedRecurrentLayer_1a59e3943afe32ff94ce365e5dda7c2bea"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19GatedRecurrentLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19GatedRecurrentLayer10resetStateEv">
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<span id="paddle::GatedRecurrentLayer::resetState"></span><span class="target" id="paddleclasspaddle_1_1GatedRecurrentLayer_1a650b5b73fafc63f3f2e72085abae393c"></span>void <code class="descname">resetState</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19GatedRecurrentLayer10resetStateEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>Reset the internal state variables. Allocate them if they have not been allocated. This function need to called before <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> for generating sequence.</p>
<p>This is used for sequence generation. When generating sequence, the calculation at current timestamp depends on the state from previous timestamp. The model needs to keep the information about the previous timestamp in the state variables. Layers such as <a class="reference internal" href="#paddleclasspaddle_1_1RecurrentLayer"><span class="std std-ref">RecurrentLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1LstmLayer"><span class="std std-ref">LstmLayer</span></a> and ContextLayer have state variables. </p>
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</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19GatedRecurrentLayer8setStateE13LayerStatePtr">
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<span id="paddle::GatedRecurrentLayer::setState__LayerStatePtr"></span><span class="target" id="paddleclasspaddle_1_1GatedRecurrentLayer_1a7b31da7c716db156740baa830d8f8038"></span>void <code class="descname">setState</code><span class="sig-paren">(</span>LayerStatePtr <em>state</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19GatedRecurrentLayer8setStateE13LayerStatePtr" title="Permalink to this definition">¶</a></dt>
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<dd><p>Set layer state. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19GatedRecurrentLayer8getStateEv">
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<span id="paddle::GatedRecurrentLayer::getState"></span><span class="target" id="paddleclasspaddle_1_1GatedRecurrentLayer_1a6ce990fa98e3efec7ee66ce464dd9f50"></span>LayerStatePtr <code class="descname">getState</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19GatedRecurrentLayer8getStateEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>Get layer state. <dl class="docutils">
<dt><strong>Return</strong></dt>
<dd>A copy of internal state. </dd>
</dl>
</p>
</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle19GatedRecurrentLayer15forwardSequenceEi6size_tPKi9MatrixPtr">
<span id="paddle::GatedRecurrentLayer::forwardSequence__i.s.iCP.MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1GatedRecurrentLayer_1acaa1ba105e1e599bddd1c7dd86cef75e"></span>void <code class="descname">forwardSequence</code><span class="sig-paren">(</span>int <em>batchSize</em>, size_t <em>numSequences</em>, <em class="property">const</em> int *<em>starts</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <em>inputValue</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19GatedRecurrentLayer15forwardSequenceEi6size_tPKi9MatrixPtr" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19GatedRecurrentLayer16backwardSequenceEi6size_tPKi9MatrixPtr">
<span id="paddle::GatedRecurrentLayer::backwardSequence__i.s.iCP.MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1GatedRecurrentLayer_1aee61809fca46dd32361228a8e64e99cf"></span>void <code class="descname">backwardSequence</code><span class="sig-paren">(</span>int <em>batchSize</em>, size_t <em>numSequences</em>, <em class="property">const</em> int *<em>starts</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <em>inputGrad</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19GatedRecurrentLayer16backwardSequenceEi6size_tPKi9MatrixPtr" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19GatedRecurrentLayer12forwardBatchEi6size_tPKi9MatrixPtr">
<span id="paddle::GatedRecurrentLayer::forwardBatch__i.s.iCP.MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1GatedRecurrentLayer_1a3187c9316931c40b28446e97e1a29ce1"></span>void <code class="descname">forwardBatch</code><span class="sig-paren">(</span>int <em>batchSize</em>, size_t <em>numSequences</em>, <em class="property">const</em> int *<em>starts</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <em>inputValue</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19GatedRecurrentLayer12forwardBatchEi6size_tPKi9MatrixPtr" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19GatedRecurrentLayer13backwardBatchEi9MatrixPtr">
<span id="paddle::GatedRecurrentLayer::backwardBatch__i.MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1GatedRecurrentLayer_1a44de2fa852ca498916557f4ea1c1539f"></span>void <code class="descname">backwardBatch</code><span class="sig-paren">(</span>int <em>batchSize</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <em>inputGrad</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19GatedRecurrentLayer13backwardBatchEi9MatrixPtr" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle19GatedRecurrentLayer7weight_E">
<span id="paddle::GatedRecurrentLayer::weight___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1GatedRecurrentLayer_1a097388936747564cee3b28d5b931c95c"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">weight_</code><a class="headerlink" href="#_CPPv2N6paddle19GatedRecurrentLayer7weight_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle19GatedRecurrentLayer11gateWeight_E">
<span id="paddle::GatedRecurrentLayer::gateWeight___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1GatedRecurrentLayer_1ae0499e038543fb5be7734db8c53195d3"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">gateWeight_</code><a class="headerlink" href="#_CPPv2N6paddle19GatedRecurrentLayer11gateWeight_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle19GatedRecurrentLayer12stateWeight_E">
<span id="paddle::GatedRecurrentLayer::stateWeight___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1GatedRecurrentLayer_1a0b7ae0f75efe420a5abd4f4f38482805"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">stateWeight_</code><a class="headerlink" href="#_CPPv2N6paddle19GatedRecurrentLayer12stateWeight_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle19GatedRecurrentLayer5bias_E">
<span id="paddle::GatedRecurrentLayer::bias___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1GatedRecurrentLayer_1a46d3a7ce91fb493fe21496b8b84fa837"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">bias_</code><a class="headerlink" href="#_CPPv2N6paddle19GatedRecurrentLayer5bias_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle19GatedRecurrentLayer5gate_E">
<span id="paddle::GatedRecurrentLayer::gate___Argument"></span><span class="target" id="paddleclasspaddle_1_1GatedRecurrentLayer_1ad35f4327f2be88a89b521435598d3155"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> <code class="descname">gate_</code><a class="headerlink" href="#_CPPv2N6paddle19GatedRecurrentLayer5gate_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle19GatedRecurrentLayer12resetOutput_E">
<span id="paddle::GatedRecurrentLayer::resetOutput___Argument"></span><span class="target" id="paddleclasspaddle_1_1GatedRecurrentLayer_1a1dc8ec53a1cb047d0a44c1a661f8ae6d"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> <code class="descname">resetOutput_</code><a class="headerlink" href="#_CPPv2N6paddle19GatedRecurrentLayer12resetOutput_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle19GatedRecurrentLayer9reversed_E">
<span id="paddle::GatedRecurrentLayer::reversed___b"></span><span class="target" id="paddleclasspaddle_1_1GatedRecurrentLayer_1abf6fc9ab99964bcaf382e288be099355"></span>bool <code class="descname">reversed_</code><a class="headerlink" href="#_CPPv2N6paddle19GatedRecurrentLayer9reversed_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle19GatedRecurrentLayer9useBatch_E">
<span id="paddle::GatedRecurrentLayer::useBatch___b"></span><span class="target" id="paddleclasspaddle_1_1GatedRecurrentLayer_1ac8bbd3d1c06b64bb112a1df2dd80c3c8"></span>bool <code class="descname">useBatch_</code><a class="headerlink" href="#_CPPv2N6paddle19GatedRecurrentLayer9useBatch_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle19GatedRecurrentLayer11batchValue_E">
<span id="paddle::GatedRecurrentLayer::batchValue___std::unique_ptr:SequenceToBatch:"></span><span class="target" id="paddleclasspaddle_1_1GatedRecurrentLayer_1a3f940227a91fe048706afd48ee306704"></span>std::unique_ptr&lt;<a class="reference internal" href="#_CPPv2N6paddle15SequenceToBatchE" title="paddle::SequenceToBatch">SequenceToBatch</a>&gt; <code class="descname">batchValue_</code><a class="headerlink" href="#_CPPv2N6paddle19GatedRecurrentLayer11batchValue_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle19GatedRecurrentLayer10batchGrad_E">
<span id="paddle::GatedRecurrentLayer::batchGrad___std::unique_ptr:SequenceToBatch:"></span><span class="target" id="paddleclasspaddle_1_1GatedRecurrentLayer_1a286648096c70fbe691a826d37a81ce48"></span>std::unique_ptr&lt;<a class="reference internal" href="#_CPPv2N6paddle15SequenceToBatchE" title="paddle::SequenceToBatch">SequenceToBatch</a>&gt; <code class="descname">batchGrad_</code><a class="headerlink" href="#_CPPv2N6paddle19GatedRecurrentLayer10batchGrad_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle19GatedRecurrentLayer15activationGate_E">
<span id="paddle::GatedRecurrentLayer::activationGate___std::unique_ptr:ActivationFunction:"></span><span class="target" id="paddleclasspaddle_1_1GatedRecurrentLayer_1a21371dd912d656a95a1f50dfca2b7632"></span>std::unique_ptr&lt;<a class="reference internal" href="../activations/index.html#_CPPv2N6paddle18ActivationFunctionE" title="paddle::ActivationFunction">ActivationFunction</a>&gt; <code class="descname">activationGate_</code><a class="headerlink" href="#_CPPv2N6paddle19GatedRecurrentLayer15activationGate_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle19GatedRecurrentLayer11prevOutput_E">
<span id="paddle::GatedRecurrentLayer::prevOutput___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1GatedRecurrentLayer_1a6e1fa4b11435d022732bd5eed17a68e4"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">prevOutput_</code><a class="headerlink" href="#_CPPv2N6paddle19GatedRecurrentLayer11prevOutput_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="grusteplayer">
<h3>GruStepLayer<a class="headerlink" href="#grusteplayer" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="_CPPv2N6paddle12GruStepLayerE">
<span id="paddle::GruStepLayer"></span><span class="target" id="paddleclasspaddle_1_1GruStepLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">GruStepLayer</code><a class="headerlink" href="#_CPPv2N6paddle12GruStepLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p><a class="reference internal" href="#paddleclasspaddle_1_1GruStepLayer"><span class="std std-ref">GruStepLayer</span></a> is like <a class="reference internal" href="#paddleclasspaddle_1_1GatedRecurrentLayer"><span class="std std-ref">GatedRecurrentLayer</span></a>, but used in recurrent layer group. <a class="reference internal" href="#paddleclasspaddle_1_1GruStepLayer"><span class="std std-ref">GruStepLayer</span></a> takes 2 input layer. </p>
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<p><ul class="simple">
<li>input[0] with size * 3 and diveded into 3 equal parts: (xz_t, xr_t, xi_t).</li>
<li>input[1] with size: {prev_out}.</li>
</ul>
</p>
<p>parameter and biasParameter is also diveded into 3 equal parts:<ul>
<li><p class="first">parameter consists of (U_z, U_r, U)</p>
</li>
<li><p class="first">baisParameter consists of (bias_z, bias_r, bias_o)</p>
<p><div class="math">
\[\begin{split} update \ gate: z_t = actGate(xz_t + U_z * prev_out + bias_z) \\ reset \ gate: r_t = actGate(xr_t + U_r * prev_out + bias_r) \\ output \ candidate: {h}_t = actNode(xi_t + U * dot(r_t, prev_out) + bias_o) \\ output: h_t = dot((1-z_t), prev_out) + dot(z_t, prev_out) \end{split}\]</div>
</p>
</li>
</ul>
</p>
<p>
The config file api if gru_step_layer. <dl class="docutils">
<dt><strong>Note</strong></dt>
<dd><ul class="simple">
<li>dot denotes &#8220;element-wise multiplication&#8221;.</li>
<li>actNode is defined by config active_type</li>
<li>actGate is defined by config actvie_gate_type</li>
</ul>
</dd>
</dl>
</p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1GruCompute"><span class="std std-ref">paddle::GruCompute</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle12GruStepLayer12GruStepLayerERK11LayerConfig">
<span id="paddle::GruStepLayer::GruStepLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1GruStepLayer_1aca5abbe614d6b1166209e668e10223d9"></span><code class="descname">GruStepLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle12GruStepLayer12GruStepLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle12GruStepLayerD0Ev">
<span id="paddle::GruStepLayer::~GruStepLayer"></span><span class="target" id="paddleclasspaddle_1_1GruStepLayer_1a6dbf1424cd851695441504d5565aac73"></span><code class="descname">~GruStepLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle12GruStepLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle12GruStepLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::GruStepLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1GruStepLayer_1a8555160607a2348641c9179dbd3417b8"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle12GruStepLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle12GruStepLayer7forwardE8PassType">
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<span id="paddle::GruStepLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1GruStepLayer_1acae11166f62e96a8c8a6fcf6c2059bd3"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle12GruStepLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle12GruStepLayer8backwardERK14UpdateCallback">
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<span id="paddle::GruStepLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1GruStepLayer_1a3d67224a4e0db0f6d25a6c59fa9df30e"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle12GruStepLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle12GruStepLayer5gate_E">
<span id="paddle::GruStepLayer::gate___Argument"></span><span class="target" id="paddleclasspaddle_1_1GruStepLayer_1a1da72326764347897ae4ee7bed505053"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> <code class="descname">gate_</code><a class="headerlink" href="#_CPPv2N6paddle12GruStepLayer5gate_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle12GruStepLayer12resetOutput_E">
<span id="paddle::GruStepLayer::resetOutput___Argument"></span><span class="target" id="paddleclasspaddle_1_1GruStepLayer_1a0008f131aa8216d26ac90fc72956bd67"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> <code class="descname">resetOutput_</code><a class="headerlink" href="#_CPPv2N6paddle12GruStepLayer12resetOutput_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle12GruStepLayer7weight_E">
<span id="paddle::GruStepLayer::weight___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1GruStepLayer_1a20143bef6be38cd669c9f09976dd336a"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">weight_</code><a class="headerlink" href="#_CPPv2N6paddle12GruStepLayer7weight_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle12GruStepLayer5bias_E">
<span id="paddle::GruStepLayer::bias___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1GruStepLayer_1af53335c17a3365c0a16e956c4d09d858"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">bias_</code><a class="headerlink" href="#_CPPv2N6paddle12GruStepLayer5bias_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="grucompute">
<h3>GruCompute<a class="headerlink" href="#grucompute" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="_CPPv2N6paddle10GruComputeE">
<span id="paddle::GruCompute"></span><span class="target" id="paddleclasspaddle_1_1GruCompute"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">GruCompute</code><a class="headerlink" href="#_CPPv2N6paddle10GruComputeE" title="Permalink to this definition">¶</a></dt>
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<dd><p>Subclassed by <a class="reference internal" href="#paddleclasspaddle_1_1GatedRecurrentLayer"><span class="std std-ref">paddle::GatedRecurrentLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1GruStepLayer"><span class="std std-ref">paddle::GruStepLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle10GruCompute4initER11LayerConfig">
<span id="paddle::GruCompute::init__LayerConfigR"></span><span class="target" id="paddleclasspaddle_1_1GruCompute_1a3009117795def78c370cc789beb4f9ab"></span>void <code class="descname">init</code><span class="sig-paren">(</span>LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10GruCompute4initER11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt>
<em class="property">template </em>&lt;bool <em>useGpu</em>&gt;</dt>
<dt id="_CPPv2N6paddle10GruCompute7forwardE12hl_gru_valueii">
<span id="paddle::GruCompute::forward__hl_gru_value.i.i"></span><span class="target" id="paddleclasspaddle_1_1GruCompute_1ab9ab0420e36a7f02894c55c98997ac82"></span>void <code class="descname">forward</code><span class="sig-paren">(</span><a class="reference internal" href="../../cuda/utils/utils.html#_CPPv212hl_gru_value" title="hl_gru_value">hl_gru_value</a> <em>value</em>, int <em>frameSize</em>, int <em>batchSize</em> = 1<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10GruCompute7forwardE12hl_gru_valueii" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt>
<em class="property">template </em>&lt;bool <em>useGpu</em>&gt;</dt>
<dt id="_CPPv2N6paddle10GruCompute8backwardE12hl_gru_value11hl_gru_gradii">
<span id="paddle::GruCompute::backward__hl_gru_value.hl_gru_grad.i.i"></span><span class="target" id="paddleclasspaddle_1_1GruCompute_1a5843b981c8e000e4a719f07ec1baa1c7"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><a class="reference internal" href="../../cuda/utils/utils.html#_CPPv212hl_gru_value" title="hl_gru_value">hl_gru_value</a> <em>value</em>, <a class="reference internal" href="../../cuda/utils/utils.html#_CPPv211hl_gru_grad" title="hl_gru_grad">hl_gru_grad</a> <em>grad</em>, int <em>frameSize</em>, int <em>batchSize</em> = 1<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10GruCompute8backwardE12hl_gru_value11hl_gru_gradii" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt>
<em class="property">template </em>&lt;&gt;</dt>
<dt id="_CPPv2N6paddle10GruCompute7forwardE12hl_gru_valueii">
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<span class="target" id="paddleclasspaddle_1_1GruCompute_1af50cb413ec03eee972eb7c516b14d1a5"></span>void <code class="descname">forward</code><span class="sig-paren">(</span><a class="reference internal" href="../../cuda/utils/utils.html#_CPPv212hl_gru_value" title="hl_gru_value">hl_gru_value</a> <em>value</em>, int <em>frameSize</em>, int <em>batchSize</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10GruCompute7forwardE12hl_gru_valueii" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt>
<em class="property">template </em>&lt;&gt;</dt>
<dt id="_CPPv2N6paddle10GruCompute8backwardE12hl_gru_value11hl_gru_gradii">
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<span class="target" id="paddleclasspaddle_1_1GruCompute_1a6952523f29f3ba6e3ab8500a2604b7c3"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><a class="reference internal" href="../../cuda/utils/utils.html#_CPPv212hl_gru_value" title="hl_gru_value">hl_gru_value</a> <em>value</em>, <a class="reference internal" href="../../cuda/utils/utils.html#_CPPv211hl_gru_grad" title="hl_gru_grad">hl_gru_grad</a> <em>grad</em>, int <em>frameSize</em>, int <em>batchSize</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10GruCompute8backwardE12hl_gru_value11hl_gru_gradii" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt>
<em class="property">template </em>&lt;&gt;</dt>
<dt>
<span class="target" id="paddleclasspaddle_1_1GruCompute_1af50cb413ec03eee972eb7c516b14d1a5"></span>void <code class="descname">forward</code><span class="sig-paren">(</span><a class="reference internal" href="../../cuda/utils/utils.html#_CPPv212hl_gru_value" title="hl_gru_value">hl_gru_value</a> <em>value</em>, int <em>frameSize</em>, int <em>batchSize</em><span class="sig-paren">)</span></dt>
<dd></dd></dl>

<dl class="function">
<dt>
<em class="property">template </em>&lt;&gt;</dt>
<dt>
<span class="target" id="paddleclasspaddle_1_1GruCompute_1a6952523f29f3ba6e3ab8500a2604b7c3"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><a class="reference internal" href="../../cuda/utils/utils.html#_CPPv212hl_gru_value" title="hl_gru_value">hl_gru_value</a> <em>value</em>, <a class="reference internal" href="../../cuda/utils/utils.html#_CPPv211hl_gru_grad" title="hl_gru_grad">hl_gru_grad</a> <em>grad</em>, int <em>frameSize</em>, int <em>batchSize</em><span class="sig-paren">)</span></dt>
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<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Members</p>
<dl class="member">
<dt id="_CPPv2N6paddle10GruCompute11activeNode_E">
<span id="paddle::GruCompute::activeNode___hl_activation_mode_t"></span><span class="target" id="paddleclasspaddle_1_1GruCompute_1a3163f341c19b3fddfb24fb46f87ea063"></span><a class="reference internal" href="../../cuda/utils/utils.html#_CPPv220hl_activation_mode_t" title="hl_activation_mode_t">hl_activation_mode_t</a> <code class="descname">activeNode_</code><a class="headerlink" href="#_CPPv2N6paddle10GruCompute11activeNode_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle10GruCompute11activeGate_E">
<span id="paddle::GruCompute::activeGate___hl_activation_mode_t"></span><span class="target" id="paddleclasspaddle_1_1GruCompute_1ac00fc9186abb73e1c91eae1419fb98df"></span><a class="reference internal" href="../../cuda/utils/utils.html#_CPPv220hl_activation_mode_t" title="hl_activation_mode_t">hl_activation_mode_t</a> <code class="descname">activeGate_</code><a class="headerlink" href="#_CPPv2N6paddle10GruCompute11activeGate_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
</div>
</div>
<div class="section" id="recurrent-layer-group">
<h1>Recurrent Layer Group<a class="headerlink" href="#recurrent-layer-group" title="Permalink to this headline">¶</a></h1>
<div class="section" id="agentlayer">
<h2>AgentLayer<a class="headerlink" href="#agentlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle10AgentLayerE">
<span id="paddle::AgentLayer"></span><span class="target" id="paddleclasspaddle_1_1AgentLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">AgentLayer</code><a class="headerlink" href="#_CPPv2N6paddle10AgentLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p><a class="reference internal" href="#paddleclasspaddle_1_1AgentLayer"><span class="std std-ref">AgentLayer</span></a> use as a virtual input of another layer in config, before execute forward/backward, setRealLayer() should be called to set one and only one real layer </p>
<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
<p>Subclassed by <a class="reference internal" href="#paddleclasspaddle_1_1SequenceAgentLayer"><span class="std std-ref">paddle::SequenceAgentLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle10AgentLayer10AgentLayerERK11LayerConfig">
<span id="paddle::AgentLayer::AgentLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1AgentLayer_1ad83af4d5cf5ce04192301978a14a14cb"></span><code class="descname">AgentLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10AgentLayer10AgentLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10AgentLayerD0Ev">
<span id="paddle::AgentLayer::~AgentLayer"></span><span class="target" id="paddleclasspaddle_1_1AgentLayer_1aa1dd6c395e22e0e9bc4a4b804d78f3bc"></span><code class="descname">~AgentLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10AgentLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10AgentLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::AgentLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1AgentLayer_1a0b382958594db7e5158c2caecf5dd4ef"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10AgentLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10AgentLayer12setRealLayerE8LayerPtri">
<span id="paddle::AgentLayer::setRealLayer__LayerPtr.i"></span><span class="target" id="paddleclasspaddle_1_1AgentLayer_1a9c0f1ac402a30980b23cfd6577404c5f"></span>void <code class="descname">setRealLayer</code><span class="sig-paren">(</span>LayerPtr <em>layer</em>, int <em>numSamples</em> = 0<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10AgentLayer12setRealLayerE8LayerPtri" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10AgentLayer7forwardE8PassType">
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<span id="paddle::AgentLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1AgentLayer_1ab409ed4b65cf4bad855fe6b5e6d64f07"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10AgentLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10AgentLayer8backwardERK14UpdateCallback">
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<span id="paddle::AgentLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1AgentLayer_1a0950aa8a30696b2caa7d6f14847fb774"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10AgentLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle10AgentLayer10realLayer_E">
<span id="paddle::AgentLayer::realLayer___LayerPtr"></span><span class="target" id="paddleclasspaddle_1_1AgentLayer_1aa590e92444031372395d3960238944d8"></span>LayerPtr <code class="descname">realLayer_</code><a class="headerlink" href="#_CPPv2N6paddle10AgentLayer10realLayer_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle10AgentLayer11numSamples_E">
<span id="paddle::AgentLayer::numSamples___i"></span><span class="target" id="paddleclasspaddle_1_1AgentLayer_1a25875adfd20e1531ac96c82533a7630d"></span>int <code class="descname">numSamples_</code><a class="headerlink" href="#_CPPv2N6paddle10AgentLayer11numSamples_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="sequenceagentlayer">
<h2>SequenceAgentLayer<a class="headerlink" href="#sequenceagentlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle18SequenceAgentLayerE">
<span id="paddle::SequenceAgentLayer"></span><span class="target" id="paddleclasspaddle_1_1SequenceAgentLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">SequenceAgentLayer</code><a class="headerlink" href="#_CPPv2N6paddle18SequenceAgentLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>like <a class="reference internal" href="#paddleclasspaddle_1_1AgentLayer"><span class="std std-ref">AgentLayer</span></a>, but use first <em>numSamples</em> sequences </p>
<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1AgentLayer"><span class="std std-ref">paddle::AgentLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle18SequenceAgentLayer18SequenceAgentLayerERK11LayerConfig">
<span id="paddle::SequenceAgentLayer::SequenceAgentLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1SequenceAgentLayer_1a7b16aa33e1bbc5abc967d40dd91e3809"></span><code class="descname">SequenceAgentLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle18SequenceAgentLayer18SequenceAgentLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle18SequenceAgentLayerD0Ev">
<span id="paddle::SequenceAgentLayer::~SequenceAgentLayer"></span><span class="target" id="paddleclasspaddle_1_1SequenceAgentLayer_1a948750a16298b7e532fcc0a9ffcdda43"></span><code class="descname">~SequenceAgentLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle18SequenceAgentLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle18SequenceAgentLayer7forwardE8PassType">
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<span id="paddle::SequenceAgentLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1SequenceAgentLayer_1a8ad70f219bdf3fc6090c4ff95b45be41"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle18SequenceAgentLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle18SequenceAgentLayer8backwardERK14UpdateCallback">
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<span id="paddle::SequenceAgentLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1SequenceAgentLayer_1af3debea2f2b4a0e20afa94f6aad01f78"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle18SequenceAgentLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="gatheragentlayer">
<h2>GatherAgentLayer<a class="headerlink" href="#gatheragentlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle16GatherAgentLayerE">
<span id="paddle::GatherAgentLayer"></span><span class="target" id="paddleclasspaddle_1_1GatherAgentLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">GatherAgentLayer</code><a class="headerlink" href="#_CPPv2N6paddle16GatherAgentLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>Like <a class="reference internal" href="#paddleclasspaddle_1_1AgentLayer"><span class="std std-ref">AgentLayer</span></a>, but it can gather many real layers. Each real layer give a few rows of a sequence, after gather all real layers, <a class="reference internal" href="#paddleclasspaddle_1_1GatherAgentLayer"><span class="std std-ref">GatherAgentLayer</span></a> collect a complete sequence. </p>
<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
<p>Subclassed by <a class="reference internal" href="#paddleclasspaddle_1_1SequenceGatherAgentLayer"><span class="std std-ref">paddle::SequenceGatherAgentLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle16GatherAgentLayer16GatherAgentLayerERK11LayerConfig">
<span id="paddle::GatherAgentLayer::GatherAgentLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1GatherAgentLayer_1aba5d16c5ca1ec3b97230cb6c156941f0"></span><code class="descname">GatherAgentLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16GatherAgentLayer16GatherAgentLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle16GatherAgentLayerD0Ev">
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<span id="paddle::GatherAgentLayer::~GatherAgentLayer"></span><span class="target" id="paddleclasspaddle_1_1GatherAgentLayer_1a27e43fa0b4298d0408384d08124b1d49"></span><em class="property">virtual</em> <code class="descname">~GatherAgentLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16GatherAgentLayerD0Ev" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle16GatherAgentLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::GatherAgentLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1GatherAgentLayer_1af65581b85bf4c6066cd85faaba6b0c17"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16GatherAgentLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle16GatherAgentLayer21copyIdAndSequenceInfoERK8ArgumentRK10IVectorPtrRKNSt6vectorIiEE">
<span id="paddle::GatherAgentLayer::copyIdAndSequenceInfo__ArgumentCR.IVectorPtrCR.std::vector:i:CR"></span><span class="target" id="paddleclasspaddle_1_1GatherAgentLayer_1ab5fc9649c97de99628fa17b55aca955a"></span>void <code class="descname">copyIdAndSequenceInfo</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>input</em>, <em class="property">const</em> <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle10IVectorPtrE" title="paddle::IVectorPtr">IVectorPtr</a> &amp;<em>allIds</em>, <em class="property">const</em> std::vector&lt;int&gt; &amp;<em>idIndex</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16GatherAgentLayer21copyIdAndSequenceInfoERK8ArgumentRK10IVectorPtrRKNSt6vectorIiEE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle16GatherAgentLayer12addRealLayerE8LayerPtr">
<span id="paddle::GatherAgentLayer::addRealLayer__LayerPtr"></span><span class="target" id="paddleclasspaddle_1_1GatherAgentLayer_1a0545bbace8c05701a1be16c4a6189d70"></span>void <code class="descname">addRealLayer</code><span class="sig-paren">(</span>LayerPtr <em>layer</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16GatherAgentLayer12addRealLayerE8LayerPtr" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle16GatherAgentLayer7forwardE8PassType">
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<span id="paddle::GatherAgentLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1GatherAgentLayer_1ae91b8d6523f31a2d31a1b04ec6487f02"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16GatherAgentLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle16GatherAgentLayer8backwardERK14UpdateCallback">
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<span id="paddle::GatherAgentLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1GatherAgentLayer_1af15b7b072fb289584a0acc8af8d2707c"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16GatherAgentLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle16GatherAgentLayer11realLayers_E">
<span id="paddle::GatherAgentLayer::realLayers___std::vector:LayerPtr:"></span><span class="target" id="paddleclasspaddle_1_1GatherAgentLayer_1afce22ba09244c08c2ef5cb663355e418"></span>std::vector&lt;LayerPtr&gt; <code class="descname">realLayers_</code><a class="headerlink" href="#_CPPv2N6paddle16GatherAgentLayer11realLayers_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle16GatherAgentLayer7idsVec_E">
<span id="paddle::GatherAgentLayer::idsVec___std::vector:IVectorPtr:"></span><span class="target" id="paddleclasspaddle_1_1GatherAgentLayer_1ac34dfb99fd1151129051bd67dd33ed85"></span>std::vector&lt;<a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle10IVectorPtrE" title="paddle::IVectorPtr">IVectorPtr</a>&gt; <code class="descname">idsVec_</code><a class="headerlink" href="#_CPPv2N6paddle16GatherAgentLayer7idsVec_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle16GatherAgentLayer7allIds_E">
<span id="paddle::GatherAgentLayer::allIds___IVectorPtr"></span><span class="target" id="paddleclasspaddle_1_1GatherAgentLayer_1a70ad4614de8b17adef65799e1d7c7f2a"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle10IVectorPtrE" title="paddle::IVectorPtr">IVectorPtr</a> <code class="descname">allIds_</code><a class="headerlink" href="#_CPPv2N6paddle16GatherAgentLayer7allIds_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle16GatherAgentLayer8idIndex_E">
<span id="paddle::GatherAgentLayer::idIndex___std::vector:i:"></span><span class="target" id="paddleclasspaddle_1_1GatherAgentLayer_1a8e04600e19fe1c76221abeab7ab4f122"></span>std::vector&lt;int&gt; <code class="descname">idIndex_</code><a class="headerlink" href="#_CPPv2N6paddle16GatherAgentLayer8idIndex_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="sequencegatheragentlayer">
<h2>SequenceGatherAgentLayer<a class="headerlink" href="#sequencegatheragentlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle24SequenceGatherAgentLayerE">
<span id="paddle::SequenceGatherAgentLayer"></span><span class="target" id="paddleclasspaddle_1_1SequenceGatherAgentLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">SequenceGatherAgentLayer</code><a class="headerlink" href="#_CPPv2N6paddle24SequenceGatherAgentLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>Like <a class="reference internal" href="#paddleclasspaddle_1_1GatherAgentLayer"><span class="std std-ref">GatherAgentLayer</span></a>, but select a few sequence in real layer. <em>ids</em> in addRealLayer() are the ids of selected sequence. It&#8217;s used to reorder sequence output. </p>
<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1GatherAgentLayer"><span class="std std-ref">paddle::GatherAgentLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle24SequenceGatherAgentLayer24SequenceGatherAgentLayerERK11LayerConfig">
<span id="paddle::SequenceGatherAgentLayer::SequenceGatherAgentLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1SequenceGatherAgentLayer_1a1f119fd1cab2e8777e77a28af1a70b98"></span><code class="descname">SequenceGatherAgentLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle24SequenceGatherAgentLayer24SequenceGatherAgentLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle24SequenceGatherAgentLayerD0Ev">
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<span id="paddle::SequenceGatherAgentLayer::~SequenceGatherAgentLayer"></span><span class="target" id="paddleclasspaddle_1_1SequenceGatherAgentLayer_1af7240b8a6b87bf085f5194ecbaa4bdad"></span><em class="property">virtual</em> <code class="descname">~SequenceGatherAgentLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle24SequenceGatherAgentLayerD0Ev" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle24SequenceGatherAgentLayer7forwardE8PassType">
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<span id="paddle::SequenceGatherAgentLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1SequenceGatherAgentLayer_1a50784b1fd9901faff1cfd7ed147b6b78"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle24SequenceGatherAgentLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle24SequenceGatherAgentLayer8backwardERK14UpdateCallback">
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<span id="paddle::SequenceGatherAgentLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1SequenceGatherAgentLayer_1ad2a03942b8ddfedeae2776fd515c0cd2"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle24SequenceGatherAgentLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="scatteragentlayer">
<h2>ScatterAgentLayer<a class="headerlink" href="#scatteragentlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle17ScatterAgentLayerE">
<span id="paddle::ScatterAgentLayer"></span><span class="target" id="paddleclasspaddle_1_1ScatterAgentLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">ScatterAgentLayer</code><a class="headerlink" href="#_CPPv2N6paddle17ScatterAgentLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>Like <a class="reference internal" href="#paddleclasspaddle_1_1AgentLayer"><span class="std std-ref">AgentLayer</span></a>, but only select a few rows in real layer. [idIndex, idIndex + idSize) of <em>ids</em> in setRealLayerAndOutput() are the selected row ids. It&#8217;s used to scatter one layer&#8217;s output to many small submodels. <a class="reference internal" href="#paddleclasspaddle_1_1ScatterAgentLayer"><span class="std std-ref">ScatterAgentLayer</span></a> can support ids real layer, if it is, the agent will select a few ids in real layer. </p>
<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
<p>Subclassed by <a class="reference internal" href="#paddleclasspaddle_1_1SequenceScatterAgentLayer"><span class="std std-ref">paddle::SequenceScatterAgentLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle17ScatterAgentLayer17ScatterAgentLayerERK11LayerConfig">
<span id="paddle::ScatterAgentLayer::ScatterAgentLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1ScatterAgentLayer_1af42ce91035860fcc0ce572eb6d31b39f"></span><code class="descname">ScatterAgentLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17ScatterAgentLayer17ScatterAgentLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17ScatterAgentLayerD0Ev">
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<span id="paddle::ScatterAgentLayer::~ScatterAgentLayer"></span><span class="target" id="paddleclasspaddle_1_1ScatterAgentLayer_1a9d0b2220cda1a35a9f26b24311601cfe"></span><em class="property">virtual</em> <code class="descname">~ScatterAgentLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17ScatterAgentLayerD0Ev" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17ScatterAgentLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::ScatterAgentLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1ScatterAgentLayer_1a1898acc71a9f05d096af361c7e22c9c8"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17ScatterAgentLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17ScatterAgentLayer12setRealLayerE8LayerPtrRKNSt6vectorIiEEb">
<span id="paddle::ScatterAgentLayer::setRealLayer__LayerPtr.std::vector:i:CR.b"></span><span class="target" id="paddleclasspaddle_1_1ScatterAgentLayer_1abc1b52a1a9b0fa738300450626e24b80"></span>void <code class="descname">setRealLayer</code><span class="sig-paren">(</span>LayerPtr <em>layer</em>, <em class="property">const</em> std::vector&lt;int&gt; &amp;<em>ids</em>, bool <em>copyId</em> = false<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17ScatterAgentLayer12setRealLayerE8LayerPtrRKNSt6vectorIiEEb" title="Permalink to this definition">¶</a></dt>
<dd><p>set real layer in generation </p>
<p><dl class="docutils">
<dt><strong>Parameters</strong></dt>
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<dd><ul class="breatheparameterlist first last simple">
<li><code class="docutils literal"><span class="pre">layer[input]</span></code>: realLayer </li>
<li><code class="docutils literal"><span class="pre">ids[input]</span></code>: row id in real layer </li>
<li><code class="docutils literal"><span class="pre">copyId[input]</span></code>: whether to copy a cpu version of ids, false(default) in <a class="reference internal" href="#paddleclasspaddle_1_1ScatterAgentLayer"><span class="std std-ref">ScatterAgentLayer</span></a>, and true in <a class="reference internal" href="#paddleclasspaddle_1_1SequenceScatterAgentLayer"><span class="std std-ref">SequenceScatterAgentLayer</span></a>. </li>
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</ul>
</dd>
</dl>
</p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17ScatterAgentLayer21setRealLayerAndOutputE8LayerPtrRK8ArgumentRK10IVectorPtrii">
<span id="paddle::ScatterAgentLayer::setRealLayerAndOutput__LayerPtr.ArgumentCR.IVectorPtrCR.i.i"></span><span class="target" id="paddleclasspaddle_1_1ScatterAgentLayer_1a4c546ca174d0d4f3b29ef40dfcf23e16"></span>void <code class="descname">setRealLayerAndOutput</code><span class="sig-paren">(</span>LayerPtr <em>layer</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>outArg</em>, <em class="property">const</em> <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle10IVectorPtrE" title="paddle::IVectorPtr">IVectorPtr</a> &amp;<em>ids</em>, int <em>idIndex</em>, int <em>idSize</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17ScatterAgentLayer21setRealLayerAndOutputE8LayerPtrRK8ArgumentRK10IVectorPtrii" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17ScatterAgentLayer25setSequenceStartPositionsERK16ICpuGpuVectorPtrii">
<span id="paddle::ScatterAgentLayer::setSequenceStartPositions__ICpuGpuVectorPtrCR.i.i"></span><span class="target" id="paddleclasspaddle_1_1ScatterAgentLayer_1a277b93420fb9dc4a6b03f85dac26acb0"></span>void <code class="descname">setSequenceStartPositions</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle16ICpuGpuVectorPtrE" title="paddle::ICpuGpuVectorPtr">ICpuGpuVectorPtr</a> &amp;<em>sequenceStartPositions</em>, int <em>seqStartPosIndex</em>, int <em>numSequences</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17ScatterAgentLayer25setSequenceStartPositionsERK16ICpuGpuVectorPtrii" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17ScatterAgentLayer7forwardE8PassType">
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<span id="paddle::ScatterAgentLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1ScatterAgentLayer_1ab5c25307b68a38fc6b77efa8251384ea"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17ScatterAgentLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17ScatterAgentLayer8backwardERK14UpdateCallback">
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<span id="paddle::ScatterAgentLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1ScatterAgentLayer_1a42916224e6e58bd6b1afa220417b8e41"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17ScatterAgentLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle17ScatterAgentLayer10realLayer_E">
<span id="paddle::ScatterAgentLayer::realLayer___LayerPtr"></span><span class="target" id="paddleclasspaddle_1_1ScatterAgentLayer_1a49e6e90c78faad2d6d01fdd128bd2e8a"></span>LayerPtr <code class="descname">realLayer_</code><a class="headerlink" href="#_CPPv2N6paddle17ScatterAgentLayer10realLayer_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle17ScatterAgentLayer4ids_E">
<span id="paddle::ScatterAgentLayer::ids___IVectorPtr"></span><span class="target" id="paddleclasspaddle_1_1ScatterAgentLayer_1a3daa90577952061a63aa1f4d76257344"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle10IVectorPtrE" title="paddle::IVectorPtr">IVectorPtr</a> <code class="descname">ids_</code><a class="headerlink" href="#_CPPv2N6paddle17ScatterAgentLayer4ids_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle17ScatterAgentLayer7cpuIds_E">
<span id="paddle::ScatterAgentLayer::cpuIds___IVectorPtr"></span><span class="target" id="paddleclasspaddle_1_1ScatterAgentLayer_1aff084df3fd6c05bee8cca0f58fa396b7"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle10IVectorPtrE" title="paddle::IVectorPtr">IVectorPtr</a> <code class="descname">cpuIds_</code><a class="headerlink" href="#_CPPv2N6paddle17ScatterAgentLayer7cpuIds_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle17ScatterAgentLayer11realOutArg_E">
<span id="paddle::ScatterAgentLayer::realOutArg___Argument"></span><span class="target" id="paddleclasspaddle_1_1ScatterAgentLayer_1a2aedc7e1fe22798b5bb0a200beee8fec"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> <code class="descname">realOutArg_</code><a class="headerlink" href="#_CPPv2N6paddle17ScatterAgentLayer11realOutArg_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle17ScatterAgentLayer8idIndex_E">
<span id="paddle::ScatterAgentLayer::idIndex___i"></span><span class="target" id="paddleclasspaddle_1_1ScatterAgentLayer_1afa60ac16c428fa733715bc018fbaf37b"></span>int <code class="descname">idIndex_</code><a class="headerlink" href="#_CPPv2N6paddle17ScatterAgentLayer8idIndex_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle17ScatterAgentLayer7idSize_E">
<span id="paddle::ScatterAgentLayer::idSize___i"></span><span class="target" id="paddleclasspaddle_1_1ScatterAgentLayer_1a8735c7ba57998210b8d65cda234b709c"></span>int <code class="descname">idSize_</code><a class="headerlink" href="#_CPPv2N6paddle17ScatterAgentLayer7idSize_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle17ScatterAgentLayer17seqStartPosIndex_E">
<span id="paddle::ScatterAgentLayer::seqStartPosIndex___i"></span><span class="target" id="paddleclasspaddle_1_1ScatterAgentLayer_1a129dcf5a2ab6a87a0c7b5b82cad918d6"></span>int <code class="descname">seqStartPosIndex_</code><a class="headerlink" href="#_CPPv2N6paddle17ScatterAgentLayer17seqStartPosIndex_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle17ScatterAgentLayer13numSequences_E">
<span id="paddle::ScatterAgentLayer::numSequences___i"></span><span class="target" id="paddleclasspaddle_1_1ScatterAgentLayer_1a2a388c6ef3ac04e777d790cc0edabb40"></span>int <code class="descname">numSequences_</code><a class="headerlink" href="#_CPPv2N6paddle17ScatterAgentLayer13numSequences_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="sequencescatteragentlayer">
<h2>SequenceScatterAgentLayer<a class="headerlink" href="#sequencescatteragentlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle25SequenceScatterAgentLayerE">
<span id="paddle::SequenceScatterAgentLayer"></span><span class="target" id="paddleclasspaddle_1_1SequenceScatterAgentLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">SequenceScatterAgentLayer</code><a class="headerlink" href="#_CPPv2N6paddle25SequenceScatterAgentLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>Like <a class="reference internal" href="#paddleclasspaddle_1_1ScatterAgentLayer"><span class="std std-ref">ScatterAgentLayer</span></a>, but select a few sequence in real layer. <em>ids</em> in <a class="reference internal" href="#paddleclasspaddle_1_1ScatterAgentLayer_1abc1b52a1a9b0fa738300450626e24b80"><span class="std std-ref">setRealLayer()</span></a> or setRealLayerAndOutput() are the ids of selected sequence. It&#8217;s used to reorder sequence input. </p>
<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1ScatterAgentLayer"><span class="std std-ref">paddle::ScatterAgentLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle25SequenceScatterAgentLayer25SequenceScatterAgentLayerERK11LayerConfig">
<span id="paddle::SequenceScatterAgentLayer::SequenceScatterAgentLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1SequenceScatterAgentLayer_1a6f5b0406695a164cc0f8e339a666c31d"></span><code class="descname">SequenceScatterAgentLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle25SequenceScatterAgentLayer25SequenceScatterAgentLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle25SequenceScatterAgentLayerD0Ev">
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<span id="paddle::SequenceScatterAgentLayer::~SequenceScatterAgentLayer"></span><span class="target" id="paddleclasspaddle_1_1SequenceScatterAgentLayer_1a9e68a48d37b4ff5d7ba51df40ea62ece"></span><em class="property">virtual</em> <code class="descname">~SequenceScatterAgentLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle25SequenceScatterAgentLayerD0Ev" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle25SequenceScatterAgentLayer7forwardE8PassType">
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<span id="paddle::SequenceScatterAgentLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1SequenceScatterAgentLayer_1ab72dfdd597a119bf7bd8a38bd30779dc"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle25SequenceScatterAgentLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle25SequenceScatterAgentLayer8backwardERK14UpdateCallback">
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<span id="paddle::SequenceScatterAgentLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1SequenceScatterAgentLayer_1a1291cb81cad09a25499493e54c479898"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle25SequenceScatterAgentLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle25SequenceScatterAgentLayer14inputStartPos_E">
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<span id="paddle::SequenceScatterAgentLayer::inputStartPos___ICpuGpuVectorPtr"></span><span class="target" id="paddleclasspaddle_1_1SequenceScatterAgentLayer_1acfcf479183ea7b96c05968d2a5ce414e"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle16ICpuGpuVectorPtrE" title="paddle::ICpuGpuVectorPtr">ICpuGpuVectorPtr</a> <code class="descname">inputStartPos_</code><a class="headerlink" href="#_CPPv2N6paddle25SequenceScatterAgentLayer14inputStartPos_E" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="getoutputlayer">
<h2>GetOutputLayer<a class="headerlink" href="#getoutputlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle14GetOutputLayerE">
<span id="paddle::GetOutputLayer"></span><span class="target" id="paddleclasspaddle_1_1GetOutputLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">GetOutputLayer</code><a class="headerlink" href="#_CPPv2N6paddle14GetOutputLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle14GetOutputLayer14GetOutputLayerERK11LayerConfig">
<span id="paddle::GetOutputLayer::GetOutputLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1GetOutputLayer_1a5b7da01b6b1a6d4240dc01ab16c38914"></span><code class="descname">GetOutputLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14GetOutputLayer14GetOutputLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14GetOutputLayerD0Ev">
<span id="paddle::GetOutputLayer::~GetOutputLayer"></span><span class="target" id="paddleclasspaddle_1_1GetOutputLayer_1acbfc6a85dd93684b6f1942133e50cd84"></span><code class="descname">~GetOutputLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14GetOutputLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14GetOutputLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::GetOutputLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1GetOutputLayer_1ab0ba5351b7afb2c08b388cdc179f77a9"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14GetOutputLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14GetOutputLayer7forwardE8PassType">
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<span id="paddle::GetOutputLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1GetOutputLayer_1a53357e65c5fcd40f16b2f927a6613d81"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14GetOutputLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14GetOutputLayer8backwardERK14UpdateCallback">
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<span id="paddle::GetOutputLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1GetOutputLayer_1ad5f8733aa949b46758079d8b9bae28b1"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14GetOutputLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
</dd></dl>

</div>
</div>
<div class="section" id="mixed-layer">
<h1>Mixed Layer<a class="headerlink" href="#mixed-layer" title="Permalink to this headline">¶</a></h1>
<dl class="class">
<dt id="_CPPv2N6paddle10MixedLayerE">
<span id="paddle::MixedLayer"></span><span class="target" id="paddleclasspaddle_1_1MixedLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">MixedLayer</code><a class="headerlink" href="#_CPPv2N6paddle10MixedLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>A mixed layer has multiple input layers. Each input layer was processed by a <a class="reference internal" href="#paddleclasspaddle_1_1Projection"><span class="std std-ref">Projection</span></a> or <a class="reference internal" href="#paddleclasspaddle_1_1Operator"><span class="std std-ref">Operator</span></a>. The results of all projections or Operators are summed together with bias (if configured), and then go through an activation function and dropout (if configured).</p>
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<p>The config file api is mixed_layer. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle10MixedLayer10MixedLayerERK11LayerConfig">
<span id="paddle::MixedLayer::MixedLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1MixedLayer_1af86d58e20dec3fc15e6cd04229486498"></span><code class="descname">MixedLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10MixedLayer10MixedLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10MixedLayerD0Ev">
<span id="paddle::MixedLayer::~MixedLayer"></span><span class="target" id="paddleclasspaddle_1_1MixedLayer_1a5071ba59d16359015bcbf9652d1dc52c"></span><code class="descname">~MixedLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10MixedLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10MixedLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::MixedLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1MixedLayer_1aa45bffbcfe1ce64272a3332d736d111b"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10MixedLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10MixedLayer8prefetchEv">
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<span id="paddle::MixedLayer::prefetch"></span><span class="target" id="paddleclasspaddle_1_1MixedLayer_1a99872128ac07e93c73bbc042fd937714"></span>void <code class="descname">prefetch</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10MixedLayer8prefetchEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>If use sparse row matrix as parameter, prefetch feature ids in input label. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10MixedLayer7forwardE8PassType">
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<span id="paddle::MixedLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1MixedLayer_1ae6dee301640e9ed6e089bb4106e774ca"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10MixedLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10MixedLayer8backwardERK14UpdateCallback">
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<span id="paddle::MixedLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1MixedLayer_1acb085ef5d6fa828f7059df4b0254e604"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10MixedLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10MixedLayer10resetStateEv">
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<span id="paddle::MixedLayer::resetState"></span><span class="target" id="paddleclasspaddle_1_1MixedLayer_1acf0ba9aa0745db69b3acae559760500f"></span>void <code class="descname">resetState</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10MixedLayer10resetStateEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>Reset the internal state variables. Allocate them if they have not been allocated. This function need to called before <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> for generating sequence.</p>
<p>This is used for sequence generation. When generating sequence, the calculation at current timestamp depends on the state from previous timestamp. The model needs to keep the information about the previous timestamp in the state variables. Layers such as <a class="reference internal" href="#paddleclasspaddle_1_1RecurrentLayer"><span class="std std-ref">RecurrentLayer</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1LstmLayer"><span class="std std-ref">LstmLayer</span></a> and ContextLayer have state variables. </p>
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</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10MixedLayer8setStateE13LayerStatePtr">
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<span id="paddle::MixedLayer::setState__LayerStatePtr"></span><span class="target" id="paddleclasspaddle_1_1MixedLayer_1a5579240e96b3cd8908598869f366dd08"></span>void <code class="descname">setState</code><span class="sig-paren">(</span>LayerStatePtr <em>state</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10MixedLayer8setStateE13LayerStatePtr" title="Permalink to this definition">¶</a></dt>
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<dd><p><a class="reference internal" href="#paddleclasspaddle_1_1MixedLayer_1a5579240e96b3cd8908598869f366dd08"><span class="std std-ref">setState()</span></a> should be called after <a class="reference internal" href="#paddleclasspaddle_1_1MixedLayer_1a4f27014678d54c3fa6e909550562b0e8"><span class="std std-ref">getState()</span></a>. <a class="reference internal" href="../../parameter/parameter/parameter.html#paddlestructpaddle_1_1Argument"><span class="std std-ref">Argument</span></a> state consists of all projections states. </p>
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</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10MixedLayer8getStateEv">
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<span id="paddle::MixedLayer::getState"></span><span class="target" id="paddleclasspaddle_1_1MixedLayer_1a4f27014678d54c3fa6e909550562b0e8"></span>LayerStatePtr <code class="descname">getState</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10MixedLayer8getStateEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>Return state which consists of all projections states. </p>
</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle10MixedLayer12projections_E">
<span id="paddle::MixedLayer::projections___std::vector:std::unique_ptr:Projection::"></span><span class="target" id="paddleclasspaddle_1_1MixedLayer_1ac0e8ea87683d582f3a60127b3a3611e7"></span>std::vector&lt;std::unique_ptr&lt;<a class="reference internal" href="#_CPPv2N6paddle10ProjectionE" title="paddle::Projection">Projection</a>&gt;&gt; <code class="descname">projections_</code><a class="headerlink" href="#_CPPv2N6paddle10MixedLayer12projections_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle10MixedLayer10operators_E">
<span id="paddle::MixedLayer::operators___std::vector:std::unique_ptr:Operator::"></span><span class="target" id="paddleclasspaddle_1_1MixedLayer_1aee6cd5143f06a1f4356847e7afb5dfd6"></span>std::vector&lt;std::unique_ptr&lt;<a class="reference internal" href="#_CPPv2N6paddle8OperatorE" title="paddle::Operator">Operator</a>&gt;&gt; <code class="descname">operators_</code><a class="headerlink" href="#_CPPv2N6paddle10MixedLayer10operators_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle10MixedLayer26projectionStateMatrixSize_E">
<span id="paddle::MixedLayer::projectionStateMatrixSize___std::vector:i:"></span><span class="target" id="paddleclasspaddle_1_1MixedLayer_1a861abe64af262c28b5180e013d7ac394"></span>std::vector&lt;int&gt; <code class="descname">projectionStateMatrixSize_</code><a class="headerlink" href="#_CPPv2N6paddle10MixedLayer26projectionStateMatrixSize_E" title="Permalink to this definition">¶</a></dt>
<dd><p>the matrix size of projection state </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle10MixedLayer7biases_E">
<span id="paddle::MixedLayer::biases___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1MixedLayer_1afa712f4fb96124f1fd7512e4b48b0662"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">biases_</code><a class="headerlink" href="#_CPPv2N6paddle10MixedLayer7biases_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

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<dl class="member">
<dt id="_CPPv2N6paddle10MixedLayer11sharedBias_E">
<span id="paddle::MixedLayer::sharedBias___b"></span><span class="target" id="paddleclasspaddle_1_1MixedLayer_1a51db7a9c897eb8ea0ab1c6b7d50d4322"></span>bool <code class="descname">sharedBias_</code><a class="headerlink" href="#_CPPv2N6paddle10MixedLayer11sharedBias_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

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</div>
</dd></dl>

<div class="section" id="dotmulprojection">
<h2>DotMulProjection<a class="headerlink" href="#dotmulprojection" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle16DotMulProjectionE">
<span id="paddle::DotMulProjection"></span><span class="target" id="paddleclasspaddle_1_1DotMulProjection"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">DotMulProjection</code><a class="headerlink" href="#_CPPv2N6paddle16DotMulProjectionE" title="Permalink to this definition">¶</a></dt>
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<dd><p><a class="reference internal" href="#paddleclasspaddle_1_1DotMulProjection"><span class="std std-ref">DotMulProjection</span></a> performs element-wise multiplication with weight: <div class="math">
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\[ out.row[i] += in.row[i] .* weight \]</div>
 where <span class="math">\(.*\)</span> means element-wise multiplication.</p>
<p>The config file api is dotmul_projection. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Projection"><span class="std std-ref">paddle::Projection</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle16DotMulProjection16DotMulProjectionERK16ProjectionConfigRK12ParameterPtrb">
<span id="paddle::DotMulProjection::DotMulProjection__ProjectionConfigCR.ParameterPtrCR.b"></span><span class="target" id="paddleclasspaddle_1_1DotMulProjection_1a34daa523b82609f234055c521f95b33a"></span><code class="descname">DotMulProjection</code><span class="sig-paren">(</span><em class="property">const</em> ProjectionConfig &amp;<em>config</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterPtrE" title="paddle::ParameterPtr">ParameterPtr</a> &amp;<em>parameter</em>, bool <em>useGpu</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16DotMulProjection16DotMulProjectionERK16ProjectionConfigRK12ParameterPtrb" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle16DotMulProjection7forwardEv">
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<span id="paddle::DotMulProjection::forward"></span><span class="target" id="paddleclasspaddle_1_1DotMulProjection_1a8c996d856be139effb9ddb69d3585678"></span>void <code class="descname">forward</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16DotMulProjection7forwardEv" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle16DotMulProjection8backwardERK14UpdateCallback">
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<span id="paddle::DotMulProjection::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1DotMulProjection_1a8ec2144020f213cdfd4de3ce19a751cd"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16DotMulProjection8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle16DotMulProjection7weight_E">
<span id="paddle::DotMulProjection::weight___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1DotMulProjection_1a1a6abc3c67a7f339cb94d32df34c50ec"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">weight_</code><a class="headerlink" href="#_CPPv2N6paddle16DotMulProjection7weight_E" title="Permalink to this definition">¶</a></dt>
<dd><p>shared memory with parameter </p>
</dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="dotmuloperator">
<h2>DotMulOperator<a class="headerlink" href="#dotmuloperator" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle14DotMulOperatorE">
<span id="paddle::DotMulOperator"></span><span class="target" id="paddleclasspaddle_1_1DotMulOperator"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">DotMulOperator</code><a class="headerlink" href="#_CPPv2N6paddle14DotMulOperatorE" title="Permalink to this definition">¶</a></dt>
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<dd><p><a class="reference internal" href="#paddleclasspaddle_1_1DotMulOperator"><span class="std std-ref">DotMulOperator</span></a> takes two inputs, performs element-wise multiplication: <div class="math">
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\[ out.row[i] += scale * (in1.row[i] .* in2.row[i]) \]</div>
 where <span class="math">\(.*\)</span> means element-wise multiplication, and scale is a config scalar, its default value is one.</p>
<p>The config file api is dotmul_operator. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Operator"><span class="std std-ref">paddle::Operator</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle14DotMulOperator14DotMulOperatorERK14OperatorConfigb">
<span id="paddle::DotMulOperator::DotMulOperator__OperatorConfigCR.b"></span><span class="target" id="paddleclasspaddle_1_1DotMulOperator_1a65f6b3c90c10dbe1860a420e95f4e029"></span><code class="descname">DotMulOperator</code><span class="sig-paren">(</span><em class="property">const</em> OperatorConfig &amp;<em>config</em>, bool <em>useGpu</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14DotMulOperator14DotMulOperatorERK14OperatorConfigb" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14DotMulOperator7forwardEv">
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<span id="paddle::DotMulOperator::forward"></span><span class="target" id="paddleclasspaddle_1_1DotMulOperator_1ae424ee175ef97428f53bb4d9f868d272"></span>void <code class="descname">forward</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14DotMulOperator7forwardEv" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14DotMulOperator8backwardEv">
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<span id="paddle::DotMulOperator::backward"></span><span class="target" id="paddleclasspaddle_1_1DotMulOperator_1a6bd7763a1b5c2486681e496e5108cc52"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14DotMulOperator8backwardEv" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="fullmatrixprojection">
<h2>FullMatrixProjection<a class="headerlink" href="#fullmatrixprojection" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle20FullMatrixProjectionE">
<span id="paddle::FullMatrixProjection"></span><span class="target" id="paddleclasspaddle_1_1FullMatrixProjection"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">FullMatrixProjection</code><a class="headerlink" href="#_CPPv2N6paddle20FullMatrixProjectionE" title="Permalink to this definition">¶</a></dt>
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<dd><p><a class="reference internal" href="#paddleclasspaddle_1_1FullMatrixProjection"><span class="std std-ref">FullMatrixProjection</span></a> performs full matrix multiplication: <div class="math">
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\[ out.row[i] += in.row[i] * weight \]</div>
</p>
<p>The config file api is full_matrix_projection. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Projection"><span class="std std-ref">paddle::Projection</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle20FullMatrixProjection20FullMatrixProjectionERK16ProjectionConfigRK12ParameterPtrb">
<span id="paddle::FullMatrixProjection::FullMatrixProjection__ProjectionConfigCR.ParameterPtrCR.b"></span><span class="target" id="paddleclasspaddle_1_1FullMatrixProjection_1a5177a9faeb979e1c7c6d2cd4c17bdccc"></span><code class="descname">FullMatrixProjection</code><span class="sig-paren">(</span><em class="property">const</em> ProjectionConfig &amp;<em>config</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterPtrE" title="paddle::ParameterPtr">ParameterPtr</a> &amp;<em>parameter</em>, bool <em>useGpu</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle20FullMatrixProjection20FullMatrixProjectionERK16ProjectionConfigRK12ParameterPtrb" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle20FullMatrixProjection7forwardEv">
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<span id="paddle::FullMatrixProjection::forward"></span><span class="target" id="paddleclasspaddle_1_1FullMatrixProjection_1aa2ac3051f7907351c76e1ccd4d9e6c85"></span>void <code class="descname">forward</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle20FullMatrixProjection7forwardEv" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle20FullMatrixProjection8backwardERK14UpdateCallback">
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<span id="paddle::FullMatrixProjection::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1FullMatrixProjection_1ab9cb2080b96b4f30c6f6c302abedb2be"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle20FullMatrixProjection8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle20FullMatrixProjection7weight_E">
<span id="paddle::FullMatrixProjection::weight___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1FullMatrixProjection_1a24121bc70120030e16d5d391b25b2005"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">weight_</code><a class="headerlink" href="#_CPPv2N6paddle20FullMatrixProjection7weight_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="identityprojection">
<h2>IdentityProjection<a class="headerlink" href="#identityprojection" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle18IdentityProjectionE">
<span id="paddle::IdentityProjection"></span><span class="target" id="paddleclasspaddle_1_1IdentityProjection"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">IdentityProjection</code><a class="headerlink" href="#_CPPv2N6paddle18IdentityProjectionE" title="Permalink to this definition">¶</a></dt>
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<dd><p><a class="reference internal" href="#paddleclasspaddle_1_1IdentityProjection"><span class="std std-ref">IdentityProjection</span></a> performs addition: <div class="math">
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\[ out.row[i] += in.row[i] \]</div>
</p>
<p>The config file api is identity_projection. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Projection"><span class="std std-ref">paddle::Projection</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle18IdentityProjection18IdentityProjectionERK16ProjectionConfigRK12ParameterPtrb">
<span id="paddle::IdentityProjection::IdentityProjection__ProjectionConfigCR.ParameterPtrCR.b"></span><span class="target" id="paddleclasspaddle_1_1IdentityProjection_1a345af15e606d43e337d48862c65fb2cd"></span><code class="descname">IdentityProjection</code><span class="sig-paren">(</span><em class="property">const</em> ProjectionConfig &amp;<em>config</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterPtrE" title="paddle::ParameterPtr">ParameterPtr</a> &amp;<em>parameter</em>, bool <em>useGpu</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle18IdentityProjection18IdentityProjectionERK16ProjectionConfigRK12ParameterPtrb" title="Permalink to this definition">¶</a></dt>
<dd><p>Constructed function. <dl class="docutils">
<dt><strong>Note</strong></dt>
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<dd><a class="reference internal" href="#paddleclasspaddle_1_1IdentityProjection"><span class="std std-ref">IdentityProjection</span></a> should not have any parameter. </dd>
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</dl>
</p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle18IdentityProjection7forwardEv">
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<span id="paddle::IdentityProjection::forward"></span><span class="target" id="paddleclasspaddle_1_1IdentityProjection_1aaeedf5150116924ed25a521ccb62eae7"></span>void <code class="descname">forward</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle18IdentityProjection7forwardEv" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle18IdentityProjection8backwardERK14UpdateCallback">
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<span id="paddle::IdentityProjection::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1IdentityProjection_1aede7505a3781333c0dc3e10184a8ee68"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle18IdentityProjection8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="identityoffsetprojection">
<h2>IdentityOffsetProjection<a class="headerlink" href="#identityoffsetprojection" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle24IdentityOffsetProjectionE">
<span id="paddle::IdentityOffsetProjection"></span><span class="target" id="paddleclasspaddle_1_1IdentityOffsetProjection"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">IdentityOffsetProjection</code><a class="headerlink" href="#_CPPv2N6paddle24IdentityOffsetProjectionE" title="Permalink to this definition">¶</a></dt>
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<dd><p><a class="reference internal" href="#paddleclasspaddle_1_1IdentityOffsetProjection"><span class="std std-ref">IdentityOffsetProjection</span></a> likes <a class="reference internal" href="#paddleclasspaddle_1_1IdentityProjection"><span class="std std-ref">IdentityProjection</span></a>, but layer size may be smaller than input size. It selects dimensions [offset, offset+layer_size) from input to perform addition: <div class="math">
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\[ out.row[i] += in.row[i + \textrm{offset}] \]</div>
</p>
<p>The config file api is identity_projection. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Projection"><span class="std std-ref">paddle::Projection</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle24IdentityOffsetProjection24IdentityOffsetProjectionERK16ProjectionConfigRK12ParameterPtrb">
<span id="paddle::IdentityOffsetProjection::IdentityOffsetProjection__ProjectionConfigCR.ParameterPtrCR.b"></span><span class="target" id="paddleclasspaddle_1_1IdentityOffsetProjection_1a0f9c91d8d113d0a3f405a6c8bdab3484"></span><code class="descname">IdentityOffsetProjection</code><span class="sig-paren">(</span><em class="property">const</em> ProjectionConfig &amp;<em>config</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterPtrE" title="paddle::ParameterPtr">ParameterPtr</a> &amp;<em>parameter</em>, bool <em>useGpu</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle24IdentityOffsetProjection24IdentityOffsetProjectionERK16ProjectionConfigRK12ParameterPtrb" title="Permalink to this definition">¶</a></dt>
<dd><p>Constructed function. <dl class="docutils">
<dt><strong>Note</strong></dt>
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<dd><a class="reference internal" href="#paddleclasspaddle_1_1IdentityOffsetProjection"><span class="std std-ref">IdentityOffsetProjection</span></a> should not have any parameter. </dd>
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</dl>
</p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle24IdentityOffsetProjection7forwardEv">
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<span id="paddle::IdentityOffsetProjection::forward"></span><span class="target" id="paddleclasspaddle_1_1IdentityOffsetProjection_1a0b89e89c1fe93e1e76484c2a6d91cf1f"></span>void <code class="descname">forward</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle24IdentityOffsetProjection7forwardEv" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle24IdentityOffsetProjection8backwardERK14UpdateCallback">
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<span id="paddle::IdentityOffsetProjection::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1IdentityOffsetProjection_1ab10505d6111d8fdcff3051f113e6db41"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle24IdentityOffsetProjection8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="tableprojection">
<h2>TableProjection<a class="headerlink" href="#tableprojection" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle15TableProjectionE">
<span id="paddle::TableProjection"></span><span class="target" id="paddleclasspaddle_1_1TableProjection"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">TableProjection</code><a class="headerlink" href="#_CPPv2N6paddle15TableProjectionE" title="Permalink to this definition">¶</a></dt>
<dd><p>Table projection takes index data input. It select rows from parameter where row_id is in input_ids: <div class="math">
\[ out.row[i] += table.row[ids[i]] \]</div>
 where <span class="math">\(out\)</span> is out, <span class="math">\(table\)</span> is parameter, <span class="math">\(ids\)</span> is input_ids, and <span class="math">\(i\)</span> is row_id.</p>
<p>The config file api is table_projection.</p>
<p><dl class="docutils">
<dt><strong>Note</strong></dt>
<dd>If <span class="math">\(ids[i] = -1\)</span>, it will be ignored. </dd>
</dl>
</p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Projection"><span class="std std-ref">paddle::Projection</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle15TableProjection15TableProjectionERK16ProjectionConfigRK12ParameterPtrb">
<span id="paddle::TableProjection::TableProjection__ProjectionConfigCR.ParameterPtrCR.b"></span><span class="target" id="paddleclasspaddle_1_1TableProjection_1a5cc0935584d7c61417b60d9bda164f59"></span><code class="descname">TableProjection</code><span class="sig-paren">(</span><em class="property">const</em> ProjectionConfig &amp;<em>config</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterPtrE" title="paddle::ParameterPtr">ParameterPtr</a> &amp;<em>parameter</em>, bool <em>useGpu</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15TableProjection15TableProjectionERK16ProjectionConfigRK12ParameterPtrb" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15TableProjection8prefetchEPK8Argument">
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<span id="paddle::TableProjection::prefetch__ArgumentCP"></span><span class="target" id="paddleclasspaddle_1_1TableProjection_1ae349432d32ee5db776bf69ca22c87c7f"></span>void <code class="descname">prefetch</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> *<em>in</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15TableProjection8prefetchEPK8Argument" title="Permalink to this definition">¶</a></dt>
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<dd><p>If use sparse row matrix as parameter, prefetch feature ids in input label. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15TableProjection7forwardEv">
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<span id="paddle::TableProjection::forward"></span><span class="target" id="paddleclasspaddle_1_1TableProjection_1a5705524712f8dd81a5ed02ce8f9f127e"></span>void <code class="descname">forward</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15TableProjection7forwardEv" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15TableProjection8backwardERK14UpdateCallback">
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<span id="paddle::TableProjection::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1TableProjection_1a2740b4be2e18a2c40a32cb051d986bac"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15TableProjection8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle15TableProjection6table_E">
<span id="paddle::TableProjection::table___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1TableProjection_1acade6c4301826a64079ae27ffb4720c0"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">table_</code><a class="headerlink" href="#_CPPv2N6paddle15TableProjection6table_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="transposedfullmatrixprojection">
<h2>TransposedFullMatrixProjection<a class="headerlink" href="#transposedfullmatrixprojection" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle30TransposedFullMatrixProjectionE">
<span id="paddle::TransposedFullMatrixProjection"></span><span class="target" id="paddleclasspaddle_1_1TransposedFullMatrixProjection"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">TransposedFullMatrixProjection</code><a class="headerlink" href="#_CPPv2N6paddle30TransposedFullMatrixProjectionE" title="Permalink to this definition">¶</a></dt>
4738
<dd><p><a class="reference internal" href="#paddleclasspaddle_1_1TransposedFullMatrixProjection"><span class="std std-ref">TransposedFullMatrixProjection</span></a> performs full matrix multiplication: out.row[i] += in.row[i] * weight.transpose. </p>
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<p>The config file api is trans_full_matrix_projection. </p>
4740
<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Projection"><span class="std std-ref">paddle::Projection</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle30TransposedFullMatrixProjection30TransposedFullMatrixProjectionERK16ProjectionConfig12ParameterPtrb">
<span id="paddle::TransposedFullMatrixProjection::TransposedFullMatrixProjection__ProjectionConfigCR.ParameterPtr.b"></span><span class="target" id="paddleclasspaddle_1_1TransposedFullMatrixProjection_1a3d469040cae2561ce4ddb00672d4bb8e"></span><code class="descname">TransposedFullMatrixProjection</code><span class="sig-paren">(</span><em class="property">const</em> ProjectionConfig &amp;<em>config</em>, <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterPtrE" title="paddle::ParameterPtr">ParameterPtr</a> <em>parameter</em>, bool <em>useGPu</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle30TransposedFullMatrixProjection30TransposedFullMatrixProjectionERK16ProjectionConfig12ParameterPtrb" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle30TransposedFullMatrixProjection7forwardEv">
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<span id="paddle::TransposedFullMatrixProjection::forward"></span><span class="target" id="paddleclasspaddle_1_1TransposedFullMatrixProjection_1a59864b8c9b17e585ce6208a76711589a"></span>void <code class="descname">forward</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle30TransposedFullMatrixProjection7forwardEv" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle30TransposedFullMatrixProjection8backwardERK14UpdateCallback">
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<span id="paddle::TransposedFullMatrixProjection::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1TransposedFullMatrixProjection_1a2f26d55a0bf07e9fab2e7d7de82c276c"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle30TransposedFullMatrixProjection8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle30TransposedFullMatrixProjection7weight_E">
<span id="paddle::TransposedFullMatrixProjection::weight___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1TransposedFullMatrixProjection_1acf4fec18d4ff7d0acb75b3d7328e30a2"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">weight_</code><a class="headerlink" href="#_CPPv2N6paddle30TransposedFullMatrixProjection7weight_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
</div>
<div class="section" id="aggregate-layers">
<h1>Aggregate Layers<a class="headerlink" href="#aggregate-layers" title="Permalink to this headline">¶</a></h1>
<div class="section" id="aggregate">
<h2>Aggregate<a class="headerlink" href="#aggregate" title="Permalink to this headline">¶</a></h2>
<div class="section" id="averagelayer">
<h3>AverageLayer<a class="headerlink" href="#averagelayer" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="_CPPv2N6paddle12AverageLayerE">
<span id="paddle::AverageLayer"></span><span class="target" id="paddleclasspaddle_1_1AverageLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">AverageLayer</code><a class="headerlink" href="#_CPPv2N6paddle12AverageLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>A layer for &#8220;internal average&#8221; for sequence input. Input: one or more sequences. Each sequence contains some instances. If SequenceLevel = kNonSeq: Output: output size is the number of input sequences (NOT input instances) output[i] = average_{for each instance in this sequence}{input[i]} If SequenceLevel = kSeq: Check input sequence must has sub-sequence Output: output size is the number of input sub-sequences output[i] = average_{for each instance in this sub-sequence}{input[i]}</p>
<p>The config file api is pooling_layer. </p>
<p>Inherits from paddle::SequencePoolLayer</p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Types</p>
<dl class="type">
<dt id="_CPPv2N6paddle12AverageLayer15AverageStrategyE">
<span id="paddle::AverageLayer::AverageStrategy"></span><span class="target" id="paddleclasspaddle_1_1AverageLayer_1aa26f5a4f7be61eaf8dfc44c16b943e4c"></span><em class="property">enum </em><code class="descname">AverageStrategy</code><a class="headerlink" href="#_CPPv2N6paddle12AverageLayer15AverageStrategyE" title="Permalink to this definition">¶</a></dt>
<dd><p><em>Values:</em></p>
<dl class="member">
<dt id="_CPPv2N6paddle12AverageLayer8kAverageE">
<span id="paddle::AverageLayer::kAverage"></span><span class="target" id="paddleclasspaddle_1_1AverageLayer_1aa26f5a4f7be61eaf8dfc44c16b943e4ca2aa761522f585922691ba60f37cbb1a9"></span><code class="descname">kAverage</code> = 0<a class="headerlink" href="#_CPPv2N6paddle12AverageLayer8kAverageE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle12AverageLayer4kSumE">
<span id="paddle::AverageLayer::kSum"></span><span class="target" id="paddleclasspaddle_1_1AverageLayer_1aa26f5a4f7be61eaf8dfc44c16b943e4cae70f844d2e826dcceb640b6889ac0b93"></span><code class="descname">kSum</code> = 1<a class="headerlink" href="#_CPPv2N6paddle12AverageLayer4kSumE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle12AverageLayer19kAverageSquareRootNE">
<span id="paddle::AverageLayer::kAverageSquareRootN"></span><span class="target" id="paddleclasspaddle_1_1AverageLayer_1aa26f5a4f7be61eaf8dfc44c16b943e4ca7edfae11ceb3c1cee072b749bf9ce26f"></span><code class="descname">kAverageSquareRootN</code> = 2<a class="headerlink" href="#_CPPv2N6paddle12AverageLayer19kAverageSquareRootNE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle12AverageLayer12AverageLayerERK11LayerConfig">
<span id="paddle::AverageLayer::AverageLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1AverageLayer_1a4b1da2125bf37055a7cc9a1e23aa5aba"></span><code class="descname">AverageLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle12AverageLayer12AverageLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle12AverageLayerD0Ev">
<span id="paddle::AverageLayer::~AverageLayer"></span><span class="target" id="paddleclasspaddle_1_1AverageLayer_1a25a9ff72833f9634e3d7f71f75f880c5"></span><code class="descname">~AverageLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle12AverageLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle12AverageLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::AverageLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1AverageLayer_1a2c913fc92af6a6e527b64e7bae968dea"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle12AverageLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle12AverageLayer7forwardE8PassType">
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<span id="paddle::AverageLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1AverageLayer_1aeaf645fcd66d6bc2f9d0ca2145787e51"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle12AverageLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle12AverageLayer8backwardERK14UpdateCallback">
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<span id="paddle::AverageLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1AverageLayer_1a7e45feb655dd01ce373f3a50b0488442"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle12AverageLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle12AverageLayer7outMtx_E">
<span id="paddle::AverageLayer::outMtx___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1AverageLayer_1a2c4e23c7f31232e8cf37500f15f99501"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">outMtx_</code><a class="headerlink" href="#_CPPv2N6paddle12AverageLayer7outMtx_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle12AverageLayer8dataMtx_E">
<span id="paddle::AverageLayer::dataMtx___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1AverageLayer_1a1c9a938e637180fdcf44f5c65f7f5e08"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">dataMtx_</code><a class="headerlink" href="#_CPPv2N6paddle12AverageLayer8dataMtx_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle12AverageLayer5mode_E">
<span id="paddle::AverageLayer::mode___i"></span><span class="target" id="paddleclasspaddle_1_1AverageLayer_1a42e68dd62e779c9d528313569f695d9c"></span>int <code class="descname">mode_</code><a class="headerlink" href="#_CPPv2N6paddle12AverageLayer5mode_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="maxlayer">
<h3>MaxLayer<a class="headerlink" href="#maxlayer" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="_CPPv2N6paddle8MaxLayerE">
<span id="paddle::MaxLayer"></span><span class="target" id="paddleclasspaddle_1_1MaxLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">MaxLayer</code><a class="headerlink" href="#_CPPv2N6paddle8MaxLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>A layer for &#8220;internal max&#8221; for sequence input. Input: one or more sequences. Each sequence contains some instances. If SequenceLevel = kNonSeq: Output: output size is the number of input sequences (NOT input instances) output[i] = max_{for each instance in this sequence}{input[i]} If SequenceLevel = kSeq: Check input sequence must has sub-sequence Output: output size is the number of input sub-sequences output[i] = max_{for each instance in this sub-sequence}{input[i]}</p>
<p>The config file api is pooling_layer. </p>
<p>Inherits from paddle::SequencePoolLayer</p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle8MaxLayer8MaxLayerERK11LayerConfig">
<span id="paddle::MaxLayer::MaxLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1MaxLayer_1ae2ebece689aab88b9493dcdc0fe2c945"></span><code class="descname">MaxLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8MaxLayer8MaxLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8MaxLayerD0Ev">
<span id="paddle::MaxLayer::~MaxLayer"></span><span class="target" id="paddleclasspaddle_1_1MaxLayer_1a8d0827ae857b0257f90cab989930e522"></span><code class="descname">~MaxLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8MaxLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8MaxLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::MaxLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1MaxLayer_1af9d1278dd039d0012e9cf6170c7f0d1f"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8MaxLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8MaxLayer7forwardE8PassType">
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<span id="paddle::MaxLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1MaxLayer_1a9c41e855b567e75d848af83c16b0b7bd"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8MaxLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8MaxLayer8backwardERK14UpdateCallback">
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<span id="paddle::MaxLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1MaxLayer_1ad389303bed7d8556dad738dea90da351"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8MaxLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle8MaxLayer9maxIndex_E">
<span id="paddle::MaxLayer::maxIndex___IVectorPtr"></span><span class="target" id="paddleclasspaddle_1_1MaxLayer_1a5dbae052a0a5b706455256c1a94618f9"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle10IVectorPtrE" title="paddle::IVectorPtr">IVectorPtr</a> <code class="descname">maxIndex_</code><a class="headerlink" href="#_CPPv2N6paddle8MaxLayer9maxIndex_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="sequencelastinstancelayer">
<h3>SequenceLastInstanceLayer<a class="headerlink" href="#sequencelastinstancelayer" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="_CPPv2N6paddle25SequenceLastInstanceLayerE">
<span id="paddle::SequenceLastInstanceLayer"></span><span class="target" id="paddleclasspaddle_1_1SequenceLastInstanceLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">SequenceLastInstanceLayer</code><a class="headerlink" href="#_CPPv2N6paddle25SequenceLastInstanceLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>A layer for extracting the last instance of the input sequence. Input: a sequence If SequenceLevel = kNonseq: Output: a sequence containing only the last instance of the input sequence If SequenceLevel = kSeq: Check input sequence must has sub-sequence Output: a sequence containing only the last instance of each sub-sequence of the input sequence</p>
<p>The config file api is last_seq and first_seq. </p>
<p>Inherits from paddle::SequencePoolLayer</p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle25SequenceLastInstanceLayer25SequenceLastInstanceLayerERK11LayerConfig">
<span id="paddle::SequenceLastInstanceLayer::SequenceLastInstanceLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1SequenceLastInstanceLayer_1ac6a0fecb92538048ea0ecbee0cf4d498"></span><code class="descname">SequenceLastInstanceLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle25SequenceLastInstanceLayer25SequenceLastInstanceLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle25SequenceLastInstanceLayerD0Ev">
<span id="paddle::SequenceLastInstanceLayer::~SequenceLastInstanceLayer"></span><span class="target" id="paddleclasspaddle_1_1SequenceLastInstanceLayer_1a94a3f23f62089996daa9b3fc7148ef39"></span><code class="descname">~SequenceLastInstanceLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle25SequenceLastInstanceLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle25SequenceLastInstanceLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::SequenceLastInstanceLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1SequenceLastInstanceLayer_1a8c6c2262f2298fc6a455772a35ab6ad1"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle25SequenceLastInstanceLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle25SequenceLastInstanceLayer7forwardE8PassType">
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<span id="paddle::SequenceLastInstanceLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1SequenceLastInstanceLayer_1a4242113d3ca809953575c0ee8e76bee5"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle25SequenceLastInstanceLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle25SequenceLastInstanceLayer8backwardERK14UpdateCallback">
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<span id="paddle::SequenceLastInstanceLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1SequenceLastInstanceLayer_1aecae5ab5d1e9c256ed1c41ca68037cce"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle25SequenceLastInstanceLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle25SequenceLastInstanceLayer7tmpSrc_E">
<span id="paddle::SequenceLastInstanceLayer::tmpSrc___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1SequenceLastInstanceLayer_1a9db7bc18cfdbf89f918775fb91a28997"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">tmpSrc_</code><a class="headerlink" href="#_CPPv2N6paddle25SequenceLastInstanceLayer7tmpSrc_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle25SequenceLastInstanceLayer8tmpDest_E">
<span id="paddle::SequenceLastInstanceLayer::tmpDest___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1SequenceLastInstanceLayer_1acc2c7bd3935a38ee14c24b66d29fe716"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">tmpDest_</code><a class="headerlink" href="#_CPPv2N6paddle25SequenceLastInstanceLayer8tmpDest_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
</div>
<div class="section" id="concat">
<h2>Concat<a class="headerlink" href="#concat" title="Permalink to this headline">¶</a></h2>
<div class="section" id="concatenatelayer">
<h3>ConcatenateLayer<a class="headerlink" href="#concatenatelayer" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="_CPPv2N6paddle16ConcatenateLayerE">
<span id="paddle::ConcatenateLayer"></span><span class="target" id="paddleclasspaddle_1_1ConcatenateLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">ConcatenateLayer</code><a class="headerlink" href="#_CPPv2N6paddle16ConcatenateLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>A concatenate layer has multiple input layers. It concatenates rows of each input as one row for the output of this layer and apply activation. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle16ConcatenateLayer16ConcatenateLayerERK11LayerConfig">
<span id="paddle::ConcatenateLayer::ConcatenateLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1ConcatenateLayer_1a0d086075459c45b87ada2f65cbdb1787"></span><code class="descname">ConcatenateLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16ConcatenateLayer16ConcatenateLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle16ConcatenateLayerD0Ev">
<span id="paddle::ConcatenateLayer::~ConcatenateLayer"></span><span class="target" id="paddleclasspaddle_1_1ConcatenateLayer_1a4569e025889ce59e8ff7a0f150d40f47"></span><code class="descname">~ConcatenateLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16ConcatenateLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle16ConcatenateLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::ConcatenateLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1ConcatenateLayer_1aa748fc2022cd507fc43f1d83642171e6"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16ConcatenateLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle16ConcatenateLayer7forwardE8PassType">
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<span id="paddle::ConcatenateLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1ConcatenateLayer_1a37f9e624ee931dd2123bc8daec5add16"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16ConcatenateLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle16ConcatenateLayer8backwardERK14UpdateCallback">
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<span id="paddle::ConcatenateLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1ConcatenateLayer_1a1e611f62e0ebb86203a6ec4ca60ec98b"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16ConcatenateLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="concatenatelayer2">
<h3>ConcatenateLayer2<a class="headerlink" href="#concatenatelayer2" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="_CPPv2N6paddle17ConcatenateLayer2E">
<span id="paddle::ConcatenateLayer2"></span><span class="target" id="paddleclasspaddle_1_1ConcatenateLayer2"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">ConcatenateLayer2</code><a class="headerlink" href="#_CPPv2N6paddle17ConcatenateLayer2E" title="Permalink to this definition">¶</a></dt>
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<dd><p>concat2 layer is like concat layer, but each input layer was processed by a <a class="reference internal" href="#paddleclasspaddle_1_1Projection"><span class="std std-ref">Projection</span></a>. </p>
<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle17ConcatenateLayer217ConcatenateLayer2ERK11LayerConfig">
<span id="paddle::ConcatenateLayer2::ConcatenateLayer2__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1ConcatenateLayer2_1aae26b5e72df30878fdc98fa49ff6afa4"></span><code class="descname">ConcatenateLayer2</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17ConcatenateLayer217ConcatenateLayer2ERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17ConcatenateLayer2D0Ev">
<span id="paddle::ConcatenateLayer2::~ConcatenateLayer2"></span><span class="target" id="paddleclasspaddle_1_1ConcatenateLayer2_1ae5ef164d09b9974e745a771cfab7b26d"></span><code class="descname">~ConcatenateLayer2</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17ConcatenateLayer2D0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17ConcatenateLayer24initERK8LayerMapRK12ParameterMap">
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<span id="paddle::ConcatenateLayer2::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1ConcatenateLayer2_1a910aadecb680a75a4ebad1d4bff29f7b"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17ConcatenateLayer24initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17ConcatenateLayer27forwardE8PassType">
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<span id="paddle::ConcatenateLayer2::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1ConcatenateLayer2_1a5397d43a9ae122884c305bb0b580a017"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17ConcatenateLayer27forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17ConcatenateLayer28backwardERK14UpdateCallback">
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<span id="paddle::ConcatenateLayer2::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1ConcatenateLayer2_1a9b0db3947661422bf19424a8f032f2ab"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17ConcatenateLayer28backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle17ConcatenateLayer212projections_E">
<span id="paddle::ConcatenateLayer2::projections___std::vector:std::unique_ptr:Projection::"></span><span class="target" id="paddleclasspaddle_1_1ConcatenateLayer2_1a7afabcdb8b553579f51c1c279f6f145d"></span>std::vector&lt;std::unique_ptr&lt;<a class="reference internal" href="#_CPPv2N6paddle10ProjectionE" title="paddle::Projection">Projection</a>&gt;&gt; <code class="descname">projections_</code><a class="headerlink" href="#_CPPv2N6paddle17ConcatenateLayer212projections_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle17ConcatenateLayer211projOutput_E">
<span id="paddle::ConcatenateLayer2::projOutput___std::vector:Argument:"></span><span class="target" id="paddleclasspaddle_1_1ConcatenateLayer2_1a515ccfad2ca49049165b518fe97ce843"></span>std::vector&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a>&gt; <code class="descname">projOutput_</code><a class="headerlink" href="#_CPPv2N6paddle17ConcatenateLayer211projOutput_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle17ConcatenateLayer28projCol_E">
<span id="paddle::ConcatenateLayer2::projCol___std::vector:std::pair:s.s::"></span><span class="target" id="paddleclasspaddle_1_1ConcatenateLayer2_1a23b4a561d25f5528a69f5b9a14b53106"></span>std::vector&lt;std::pair&lt;size_t, size_t&gt;&gt; <code class="descname">projCol_</code><a class="headerlink" href="#_CPPv2N6paddle17ConcatenateLayer28projCol_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

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<dl class="member">
<dt id="_CPPv2N6paddle17ConcatenateLayer211sharedBias_E">
<span id="paddle::ConcatenateLayer2::sharedBias___b"></span><span class="target" id="paddleclasspaddle_1_1ConcatenateLayer2_1a68a763a5ea650d74d5d17da794a86509"></span>bool <code class="descname">sharedBias_</code><a class="headerlink" href="#_CPPv2N6paddle17ConcatenateLayer211sharedBias_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle17ConcatenateLayer27biases_E">
<span id="paddle::ConcatenateLayer2::biases___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1ConcatenateLayer2_1aad51478bbc6b76440f9b9d1734c8a428"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">biases_</code><a class="headerlink" href="#_CPPv2N6paddle17ConcatenateLayer27biases_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

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</div>
</dd></dl>

</div>
<div class="section" id="sequenceconcatlayer">
<h3>SequenceConcatLayer<a class="headerlink" href="#sequenceconcatlayer" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="_CPPv2N6paddle19SequenceConcatLayerE">
<span id="paddle::SequenceConcatLayer"></span><span class="target" id="paddleclasspaddle_1_1SequenceConcatLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">SequenceConcatLayer</code><a class="headerlink" href="#_CPPv2N6paddle19SequenceConcatLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>A layer for concatenating the first sequence with the second sequence following the first Input: two sequences each containing some instances Output: a concatenated sequence of the two input sequences </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle19SequenceConcatLayer19SequenceConcatLayerERK11LayerConfig">
<span id="paddle::SequenceConcatLayer::SequenceConcatLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1SequenceConcatLayer_1ab17df594951c1d3c304524550336b3f0"></span><code class="descname">SequenceConcatLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19SequenceConcatLayer19SequenceConcatLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19SequenceConcatLayerD0Ev">
<span id="paddle::SequenceConcatLayer::~SequenceConcatLayer"></span><span class="target" id="paddleclasspaddle_1_1SequenceConcatLayer_1a7d27c516f5c4f5bee7f7944155fe45d9"></span><code class="descname">~SequenceConcatLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19SequenceConcatLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19SequenceConcatLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::SequenceConcatLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1SequenceConcatLayer_1af7737b5c7ed6929af27402173aab205b"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19SequenceConcatLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19SequenceConcatLayer7forwardE8PassType">
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<span id="paddle::SequenceConcatLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1SequenceConcatLayer_1ad35118e39e0fedd72ee69401c7b150f1"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19SequenceConcatLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19SequenceConcatLayer8backwardERK14UpdateCallback">
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<span id="paddle::SequenceConcatLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1SequenceConcatLayer_1ac5bbeccc4e883958bb7647fce7414296"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19SequenceConcatLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle19SequenceConcatLayer7biases_E">
<span id="paddle::SequenceConcatLayer::biases___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1SequenceConcatLayer_1a079d90c07921cf41694ba5212bd41a79"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">biases_</code><a class="headerlink" href="#_CPPv2N6paddle19SequenceConcatLayer7biases_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
</div>
<div class="section" id="subset">
<h2>Subset<a class="headerlink" href="#subset" title="Permalink to this headline">¶</a></h2>
<div class="section" id="subsequencelayer">
<h3>SubSequenceLayer<a class="headerlink" href="#subsequencelayer" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="_CPPv2N6paddle16SubSequenceLayerE">
<span id="paddle::SubSequenceLayer"></span><span class="target" id="paddleclasspaddle_1_1SubSequenceLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">SubSequenceLayer</code><a class="headerlink" href="#_CPPv2N6paddle16SubSequenceLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>A layer for taking the subsequence according to given offset and size Input: original sequence, offset, size Output: subsequence </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle16SubSequenceLayer16SubSequenceLayerERK11LayerConfig">
<span id="paddle::SubSequenceLayer::SubSequenceLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1SubSequenceLayer_1a0915d625c29667101937e5a79c701e64"></span><code class="descname">SubSequenceLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16SubSequenceLayer16SubSequenceLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle16SubSequenceLayerD0Ev">
<span id="paddle::SubSequenceLayer::~SubSequenceLayer"></span><span class="target" id="paddleclasspaddle_1_1SubSequenceLayer_1aec31928e23a4bea8534d8dd159f8c0fc"></span><code class="descname">~SubSequenceLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16SubSequenceLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle16SubSequenceLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::SubSequenceLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1SubSequenceLayer_1a8907b16f699c297e37ecb990fadb0e11"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16SubSequenceLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle16SubSequenceLayer7forwardE8PassType">
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<span id="paddle::SubSequenceLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1SubSequenceLayer_1ab5a3e5d3d54fce397b6881d1a93148b4"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16SubSequenceLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle16SubSequenceLayer8backwardERK14UpdateCallback">
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<span id="paddle::SubSequenceLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1SubSequenceLayer_1ad4e5154b99fd40ea7777c31ece2eea30"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16SubSequenceLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle16SubSequenceLayer7biases_E">
<span id="paddle::SubSequenceLayer::biases___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1SubSequenceLayer_1acc63b5b48736161b4e0f978f512bee62"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">biases_</code><a class="headerlink" href="#_CPPv2N6paddle16SubSequenceLayer7biases_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle16SubSequenceLayer7tmpSrc_E">
<span id="paddle::SubSequenceLayer::tmpSrc___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1SubSequenceLayer_1a97d1076f0fd637ad1da81c90ca3cf6c0"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">tmpSrc_</code><a class="headerlink" href="#_CPPv2N6paddle16SubSequenceLayer7tmpSrc_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle16SubSequenceLayer8tmpDest_E">
<span id="paddle::SubSequenceLayer::tmpDest___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1SubSequenceLayer_1ad9134437e7e150c1ccaf1ceeabd5d8a7"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">tmpDest_</code><a class="headerlink" href="#_CPPv2N6paddle16SubSequenceLayer8tmpDest_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
</div>
</div>
<div class="section" id="reshaping-layers">
<h1>Reshaping Layers<a class="headerlink" href="#reshaping-layers" title="Permalink to this headline">¶</a></h1>
<div class="section" id="blockexpandlayer">
<h2>BlockExpandLayer<a class="headerlink" href="#blockexpandlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle16BlockExpandLayerE">
<span id="paddle::BlockExpandLayer"></span><span class="target" id="paddleclasspaddle_1_1BlockExpandLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">BlockExpandLayer</code><a class="headerlink" href="#_CPPv2N6paddle16BlockExpandLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>Expand feature map to minibatch matrix. </p>
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<p><ul>
<li><p class="first">matrix width is: blockH_ * blockW_ * channels_</p>
</li>
<li><p class="first">matirx height is: outputH_ * outputW_</p>
<p><div class="math">
\[\begin{split} outputH\_ = 1 + (2 * paddingH\_ + imgSizeH\_ - blockH\_ + strideH\_ - 1) / strideH\_ \\ outputW\_ = 1 + (2 * paddingW\_ + imgSizeW\_ - blockW\_ + strideW\_ - 1) / strideW\_ \end{split}\]</div>
</p>
</li>
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</ul>
</p>
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<p>The expand method is the same with <a class="reference internal" href="#paddleclasspaddle_1_1ExpandConvLayer"><span class="std std-ref">ExpandConvLayer</span></a>, but saved the transposed value. After expanding, output_.sequenceStartPositions will store timeline. The number of time steps are outputH_ * outputW_ and the dimension of each time step is blockH_ * blockW_ * channels_. This layer can be used after convolution neural network, and before recurrent neural network.</p>
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<p>The config file api is block_expand_layer. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle16BlockExpandLayer16BlockExpandLayerERK11LayerConfig">
<span id="paddle::BlockExpandLayer::BlockExpandLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1BlockExpandLayer_1a048cb2d356611dfad88ad9678925f0b1"></span><code class="descname">BlockExpandLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16BlockExpandLayer16BlockExpandLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle16BlockExpandLayerD0Ev">
<span id="paddle::BlockExpandLayer::~BlockExpandLayer"></span><span class="target" id="paddleclasspaddle_1_1BlockExpandLayer_1a74e9dceb3dae2eafae4c870bf91c42e5"></span><code class="descname">~BlockExpandLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16BlockExpandLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle16BlockExpandLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::BlockExpandLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1BlockExpandLayer_1a5e5461739329ba2015329785c83c9f5e"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16BlockExpandLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle16BlockExpandLayer7forwardE8PassType">
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<span id="paddle::BlockExpandLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1BlockExpandLayer_1a55f7b4a0017c505994763f0322c83c47"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16BlockExpandLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle16BlockExpandLayer8backwardERK14UpdateCallback">
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<span id="paddle::BlockExpandLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1BlockExpandLayer_1a76d8cc6b51029d4fdeab9bfd6e9694bd"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16BlockExpandLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle16BlockExpandLayer11getBlockNumEv">
<span id="paddle::BlockExpandLayer::getBlockNum"></span><span class="target" id="paddleclasspaddle_1_1BlockExpandLayer_1a5670a1774fca131c874e5d627e151e92"></span>size_t <code class="descname">getBlockNum</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16BlockExpandLayer11getBlockNumEv" title="Permalink to this definition">¶</a></dt>
<dd><p>Calculate outputH_ and outputW_ and return block number which actually is time steps. </p>
<p><dl class="docutils">
<dt><strong>Return</strong></dt>
<dd>time steps, outoutH_ * outputW_. </dd>
</dl>
</p>
</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle16BlockExpandLayer7blockH_E">
<span id="paddle::BlockExpandLayer::blockH___s"></span><span class="target" id="paddleclasspaddle_1_1BlockExpandLayer_1ae5a13475ced901eff5ae4682b558061f"></span>size_t <code class="descname">blockH_</code><a class="headerlink" href="#_CPPv2N6paddle16BlockExpandLayer7blockH_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle16BlockExpandLayer7blockW_E">
<span id="paddle::BlockExpandLayer::blockW___s"></span><span class="target" id="paddleclasspaddle_1_1BlockExpandLayer_1adadca46903e386cebd41b6bd4f80b07d"></span>size_t <code class="descname">blockW_</code><a class="headerlink" href="#_CPPv2N6paddle16BlockExpandLayer7blockW_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle16BlockExpandLayer8strideH_E">
<span id="paddle::BlockExpandLayer::strideH___s"></span><span class="target" id="paddleclasspaddle_1_1BlockExpandLayer_1af80bbd89bf1867a630d3da894625f370"></span>size_t <code class="descname">strideH_</code><a class="headerlink" href="#_CPPv2N6paddle16BlockExpandLayer8strideH_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle16BlockExpandLayer8strideW_E">
<span id="paddle::BlockExpandLayer::strideW___s"></span><span class="target" id="paddleclasspaddle_1_1BlockExpandLayer_1adf6784af28a85e13f53a196ac5ebecee"></span>size_t <code class="descname">strideW_</code><a class="headerlink" href="#_CPPv2N6paddle16BlockExpandLayer8strideW_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle16BlockExpandLayer9paddingH_E">
<span id="paddle::BlockExpandLayer::paddingH___s"></span><span class="target" id="paddleclasspaddle_1_1BlockExpandLayer_1a955e71e552b7f1e7c176c05ac40eb100"></span>size_t <code class="descname">paddingH_</code><a class="headerlink" href="#_CPPv2N6paddle16BlockExpandLayer9paddingH_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle16BlockExpandLayer9paddingW_E">
<span id="paddle::BlockExpandLayer::paddingW___s"></span><span class="target" id="paddleclasspaddle_1_1BlockExpandLayer_1a428a23a737d916b3901589960be9d21f"></span>size_t <code class="descname">paddingW_</code><a class="headerlink" href="#_CPPv2N6paddle16BlockExpandLayer9paddingW_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle16BlockExpandLayer9imgSizeH_E">
<span id="paddle::BlockExpandLayer::imgSizeH___s"></span><span class="target" id="paddleclasspaddle_1_1BlockExpandLayer_1a5cee06894cb06b14c72cf833364357ae"></span>size_t <code class="descname">imgSizeH_</code><a class="headerlink" href="#_CPPv2N6paddle16BlockExpandLayer9imgSizeH_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle16BlockExpandLayer9imgSizeW_E">
<span id="paddle::BlockExpandLayer::imgSizeW___s"></span><span class="target" id="paddleclasspaddle_1_1BlockExpandLayer_1a8b8b1fd86729689ebef6ae3b7a6c93e9"></span>size_t <code class="descname">imgSizeW_</code><a class="headerlink" href="#_CPPv2N6paddle16BlockExpandLayer9imgSizeW_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle16BlockExpandLayer8outputH_E">
<span id="paddle::BlockExpandLayer::outputH___s"></span><span class="target" id="paddleclasspaddle_1_1BlockExpandLayer_1a3279a92dc1756c125213c70711dd7f6f"></span>size_t <code class="descname">outputH_</code><a class="headerlink" href="#_CPPv2N6paddle16BlockExpandLayer8outputH_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle16BlockExpandLayer8outputW_E">
<span id="paddle::BlockExpandLayer::outputW___s"></span><span class="target" id="paddleclasspaddle_1_1BlockExpandLayer_1a5a6d47d3f491ed5fa25aed434a9790f8"></span>size_t <code class="descname">outputW_</code><a class="headerlink" href="#_CPPv2N6paddle16BlockExpandLayer8outputW_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle16BlockExpandLayer9channels_E">
<span id="paddle::BlockExpandLayer::channels___s"></span><span class="target" id="paddleclasspaddle_1_1BlockExpandLayer_1a7b71ea330e8b9f5794a1e60c0659664d"></span>size_t <code class="descname">channels_</code><a class="headerlink" href="#_CPPv2N6paddle16BlockExpandLayer9channels_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle16BlockExpandLayer10outVTrans_E">
<span id="paddle::BlockExpandLayer::outVTrans___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1BlockExpandLayer_1a8057c00b222a79b6649bad6442249371"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">outVTrans_</code><a class="headerlink" href="#_CPPv2N6paddle16BlockExpandLayer10outVTrans_E" title="Permalink to this definition">¶</a></dt>
<dd><p>auxiliary variable, which saves the transposed output value. </p>
</dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="expandlayer">
<h2>ExpandLayer<a class="headerlink" href="#expandlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle11ExpandLayerE">
<span id="paddle::ExpandLayer"></span><span class="target" id="paddleclasspaddle_1_1ExpandLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">ExpandLayer</code><a class="headerlink" href="#_CPPv2N6paddle11ExpandLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>A layer for &#8220;Expand Dense data or (sequence data where the length of each
sequence is one) to sequence data.&#8221;</p>
<p>It should have exactly 2 input, one for data, one for size:<ul class="simple">
<li>first one for data<ul>
<li>If ExpandLevel = kNonSeq: dense data</li>
<li>If ExpandLevel = kSeq: sequence data where the length of each sequence is one</li>
</ul>
</li>
<li>second one only for sequence info<ul>
<li>should be sequence data with or without sub-sequence.</li>
</ul>
</li>
</ul>
</p>
<p>And the output size is the batch size(not instances) of second input.</p>
<p>The config file api is expand_layer. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle11ExpandLayer11ExpandLayerERK11LayerConfig">
<span id="paddle::ExpandLayer::ExpandLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1ExpandLayer_1a9261d15b0a345292d7bbbb5fd46925d3"></span><code class="descname">ExpandLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11ExpandLayer11ExpandLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11ExpandLayerD0Ev">
<span id="paddle::ExpandLayer::~ExpandLayer"></span><span class="target" id="paddleclasspaddle_1_1ExpandLayer_1a47f7522624e50fd88a06e03f7f47aa9e"></span><code class="descname">~ExpandLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11ExpandLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11ExpandLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::ExpandLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1ExpandLayer_1a3a876f26d8285039717a84400216f18e"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11ExpandLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11ExpandLayer7forwardE8PassType">
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<span id="paddle::ExpandLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1ExpandLayer_1acbc71a3ef24a6f3234c616684dc0fbbe"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11ExpandLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11ExpandLayer8backwardERK14UpdateCallback">
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<span id="paddle::ExpandLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1ExpandLayer_1ae8bb32b7c4a9cba0a6bf2bc4ccf7a7f2"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11ExpandLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Types</p>
<dl class="type">
<dt id="_CPPv2N6paddle11ExpandLayer11ExpandLevelE">
<span id="paddle::ExpandLayer::ExpandLevel"></span><span class="target" id="paddleclasspaddle_1_1ExpandLayer_1a4eaa3d5b6a810d3e5d815da260adc68e"></span><em class="property">enum </em><code class="descname">ExpandLevel</code><a class="headerlink" href="#_CPPv2N6paddle11ExpandLayer11ExpandLevelE" title="Permalink to this definition">¶</a></dt>
<dd><p>if input[0] is dense data, ExpandLevel=kNonSeq; if input[0] is sequence data, ExpandLevel=kSeq </p>
<p><em>Values:</em></p>
<dl class="member">
<dt id="_CPPv2N6paddle11ExpandLayer7kNonSeqE">
<span id="paddle::ExpandLayer::kNonSeq"></span><span class="target" id="paddleclasspaddle_1_1ExpandLayer_1a4eaa3d5b6a810d3e5d815da260adc68ea2628cd9625a805b9586db2b6d7098a75"></span><code class="descname">kNonSeq</code> = 0<a class="headerlink" href="#_CPPv2N6paddle11ExpandLayer7kNonSeqE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle11ExpandLayer4kSeqE">
<span id="paddle::ExpandLayer::kSeq"></span><span class="target" id="paddleclasspaddle_1_1ExpandLayer_1a4eaa3d5b6a810d3e5d815da260adc68eab96faec9300a49c4049a186aa3aa0163"></span><code class="descname">kSeq</code> = 1<a class="headerlink" href="#_CPPv2N6paddle11ExpandLayer4kSeqE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle11ExpandLayer7biases_E">
<span id="paddle::ExpandLayer::biases___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1ExpandLayer_1adc8a18258be2a6926d67b79e8960a5a0"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">biases_</code><a class="headerlink" href="#_CPPv2N6paddle11ExpandLayer7biases_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle11ExpandLayer5type_E">
<span id="paddle::ExpandLayer::type___i"></span><span class="target" id="paddleclasspaddle_1_1ExpandLayer_1a936cb98b0488cede1d8aca8e48364aec"></span>int <code class="descname">type_</code><a class="headerlink" href="#_CPPv2N6paddle11ExpandLayer5type_E" title="Permalink to this definition">¶</a></dt>
<dd><p>store the ExpandLevel </p>
</dd></dl>

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<dl class="member">
<dt id="_CPPv2N6paddle11ExpandLayer16expandStartsPos_E">
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<span id="paddle::ExpandLayer::expandStartsPos___ICpuGpuVectorPtr"></span><span class="target" id="paddleclasspaddle_1_1ExpandLayer_1a4243425f33452a5d1ac468d257ce111a"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle16ICpuGpuVectorPtrE" title="paddle::ICpuGpuVectorPtr">ICpuGpuVectorPtr</a> <code class="descname">expandStartsPos_</code><a class="headerlink" href="#_CPPv2N6paddle11ExpandLayer16expandStartsPos_E" title="Permalink to this definition">¶</a></dt>
<dd><p>expanded sequenceStartPositions or subSequenceStartPositions of input[1] </p>
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</dd></dl>

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</div>
</dd></dl>

</div>
<div class="section" id="featuremapexpandlayer">
<h2>FeatureMapExpandLayer<a class="headerlink" href="#featuremapexpandlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle21FeatureMapExpandLayerE">
<span id="paddle::FeatureMapExpandLayer"></span><span class="target" id="paddleclasspaddle_1_1FeatureMapExpandLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">FeatureMapExpandLayer</code><a class="headerlink" href="#_CPPv2N6paddle21FeatureMapExpandLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>A layer for expanding a batch of images to feature maps. Each data of the input is a 2 dimensional matrix. Each element of the matrix is replicated num_filters times to create a feature map with num_filters channels. </p>
<p><ul class="simple">
<li>Input: Input one should be dense image data.</li>
<li>Output: expanded fature maps. <div class="math">
\[ y.row[i] = x.row[i \mod x.width], i = 0,1,..., (x.width * num\_filters - 1) \]</div>
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 For example, num_filters = 4: <div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">x</span> <span class="o">=</span> <span class="p">[</span><span class="n">a1</span><span class="p">,</span><span class="n">a2</span><span class="p">;</span>
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     <span class="n">b1</span><span class="p">,</span><span class="n">b2</span><span class="p">]</span>
<span class="n">y</span> <span class="o">=</span> <span class="p">[</span><span class="n">a1</span><span class="p">,</span> <span class="n">a2</span><span class="p">,</span> <span class="n">a1</span><span class="p">,</span> <span class="n">a2</span><span class="p">,</span> <span class="n">a1</span><span class="p">,</span> <span class="n">a2</span><span class="p">,</span> <span class="n">a1</span><span class="p">,</span> <span class="n">a2</span><span class="p">;</span>
     <span class="n">b1</span><span class="p">,</span> <span class="n">b2</span><span class="p">,</span> <span class="n">b1</span><span class="p">,</span> <span class="n">b2</span><span class="p">,</span> <span class="n">b1</span><span class="p">,</span> <span class="n">b2</span><span class="p">,</span> <span class="n">b1</span><span class="p">,</span> <span class="n">b2</span><span class="p">;]</span>
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</pre></div>
</div>
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 </li>
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</ul>
</p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle21FeatureMapExpandLayer21FeatureMapExpandLayerERK11LayerConfig">
<span id="paddle::FeatureMapExpandLayer::FeatureMapExpandLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1FeatureMapExpandLayer_1ae59c0980e16e5a2b2708612560223a9c"></span><code class="descname">FeatureMapExpandLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle21FeatureMapExpandLayer21FeatureMapExpandLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle21FeatureMapExpandLayerD0Ev">
<span id="paddle::FeatureMapExpandLayer::~FeatureMapExpandLayer"></span><span class="target" id="paddleclasspaddle_1_1FeatureMapExpandLayer_1a117e37d0e9a4ef4e08d355f050d8c21d"></span><code class="descname">~FeatureMapExpandLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle21FeatureMapExpandLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle21FeatureMapExpandLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::FeatureMapExpandLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1FeatureMapExpandLayer_1a93e0f4f95d00854f63d6c5d6ab29357c"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle21FeatureMapExpandLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle21FeatureMapExpandLayer7forwardE8PassType">
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<span id="paddle::FeatureMapExpandLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1FeatureMapExpandLayer_1ad8e419d32ca52ea3ab57e02b3415b3fc"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle21FeatureMapExpandLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle21FeatureMapExpandLayer8backwardERK14UpdateCallback">
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<span id="paddle::FeatureMapExpandLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1FeatureMapExpandLayer_1a985eefbe25aa97470660d068be94c920"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle21FeatureMapExpandLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="resizelayer">
<h2>ResizeLayer<a class="headerlink" href="#resizelayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle11ResizeLayerE">
<span id="paddle::ResizeLayer"></span><span class="target" id="paddleclasspaddle_1_1ResizeLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">ResizeLayer</code><a class="headerlink" href="#_CPPv2N6paddle11ResizeLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>A layer for resizing a minibatch matrix h*w to h&#8217;*w&#8217;. </p>
<p><dl class="docutils">
<dt><strong>Note</strong></dt>
<dd>origin matrix height * witdth) resize matrix: (height * width / size) * size </dd>
</dl>
</p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle11ResizeLayer11ResizeLayerERK11LayerConfig">
<span id="paddle::ResizeLayer::ResizeLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1ResizeLayer_1ab76d58f1929f0ca8d25614d28ab48607"></span><code class="descname">ResizeLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11ResizeLayer11ResizeLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11ResizeLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::ResizeLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1ResizeLayer_1a30d2249089640d51ed4f79ab28f74bc8"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11ResizeLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11ResizeLayer7forwardE8PassType">
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<span id="paddle::ResizeLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1ResizeLayer_1a74b123c4bb24a0c86b055a8fd2a6014d"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11ResizeLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11ResizeLayer8backwardERK14UpdateCallback">
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<span id="paddle::ResizeLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1ResizeLayer_1aa077c0814161c92fe8faf8601f11c5c6"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11ResizeLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="sequencereshapelayer">
<h2>SequenceReshapeLayer<a class="headerlink" href="#sequencereshapelayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle20SequenceReshapeLayerE">
<span id="paddle::SequenceReshapeLayer"></span><span class="target" id="paddleclasspaddle_1_1SequenceReshapeLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">SequenceReshapeLayer</code><a class="headerlink" href="#_CPPv2N6paddle20SequenceReshapeLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>A layer for reshaping the sequence Input: a sequence Output: a sequence </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle20SequenceReshapeLayer20SequenceReshapeLayerERK11LayerConfig">
<span id="paddle::SequenceReshapeLayer::SequenceReshapeLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1SequenceReshapeLayer_1a7042a5cdc9f17ac37fb46913e2a1bb21"></span><code class="descname">SequenceReshapeLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle20SequenceReshapeLayer20SequenceReshapeLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle20SequenceReshapeLayerD0Ev">
<span id="paddle::SequenceReshapeLayer::~SequenceReshapeLayer"></span><span class="target" id="paddleclasspaddle_1_1SequenceReshapeLayer_1a2e022d9173bdf56db651a71d8629e909"></span><code class="descname">~SequenceReshapeLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle20SequenceReshapeLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle20SequenceReshapeLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::SequenceReshapeLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1SequenceReshapeLayer_1a1eed5a9d07caba32aa38d7a07dcb44a4"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle20SequenceReshapeLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle20SequenceReshapeLayer7forwardE8PassType">
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<span id="paddle::SequenceReshapeLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1SequenceReshapeLayer_1a6410cdf80e69567479cff69ee05d7c13"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle20SequenceReshapeLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle20SequenceReshapeLayer8backwardERK14UpdateCallback">
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<span id="paddle::SequenceReshapeLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1SequenceReshapeLayer_1aac3b09eb80fd9e97baafc2dccf51d77b"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle20SequenceReshapeLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle20SequenceReshapeLayer7biases_E">
<span id="paddle::SequenceReshapeLayer::biases___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1SequenceReshapeLayer_1ad8e06f5ef59b054f87a1309a33ba4fb8"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">biases_</code><a class="headerlink" href="#_CPPv2N6paddle20SequenceReshapeLayer7biases_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle20SequenceReshapeLayer18reshapedOutputGradE">
<span id="paddle::SequenceReshapeLayer::reshapedOutputGrad__MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1SequenceReshapeLayer_1a0ccc526efd66fd559b8fd2aefa68510f"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">reshapedOutputGrad</code><a class="headerlink" href="#_CPPv2N6paddle20SequenceReshapeLayer18reshapedOutputGradE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
</div>
<div class="section" id="math-layers">
<h1>Math Layers<a class="headerlink" href="#math-layers" title="Permalink to this headline">¶</a></h1>
<div class="section" id="addtolayer">
<h2>AddtoLayer<a class="headerlink" href="#addtolayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle10AddtoLayerE">
<span id="paddle::AddtoLayer"></span><span class="target" id="paddleclasspaddle_1_1AddtoLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">AddtoLayer</code><a class="headerlink" href="#_CPPv2N6paddle10AddtoLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>This layer just simply add all input layers together, then activate the sum inputs. Each input of this layer should be the same size, which is also the output size of this layer. <div class="math">
\[ y=f(\sum_{i}x_i + b) \]</div>
 where <span class="math">\(y\)</span> is output, <span class="math">\(x\)</span> is input, <span class="math">\(b\)</span> is bias, and <span class="math">\(f\)</span> is activation function.</p>
<p>The config file api is addto_layer. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle10AddtoLayer10AddtoLayerERK11LayerConfig">
<span id="paddle::AddtoLayer::AddtoLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1AddtoLayer_1acd565fad01b72f2300aafa7334b0d9a3"></span><code class="descname">AddtoLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10AddtoLayer10AddtoLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10AddtoLayerD0Ev">
<span id="paddle::AddtoLayer::~AddtoLayer"></span><span class="target" id="paddleclasspaddle_1_1AddtoLayer_1a265a8137ec19ead5ced650ef54186275"></span><code class="descname">~AddtoLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10AddtoLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10AddtoLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::AddtoLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1AddtoLayer_1a5a16c4dc160d02807e33bf46eee0facf"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10AddtoLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization of <a class="reference internal" href="#paddleclasspaddle_1_1AddtoLayer"><span class="std std-ref">AddtoLayer</span></a>. </p>
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</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10AddtoLayer7forwardE8PassType">
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<span id="paddle::AddtoLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1AddtoLayer_1adf8be07621caf1026ab42937f66c91ba"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10AddtoLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. <dl class="docutils">
<dt><strong>Note</strong></dt>
<dd>There is no weight matrix for each input, because it just a simple add operation. </dd>
</dl>
</p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10AddtoLayer8backwardERK14UpdateCallback">
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<span id="paddle::AddtoLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1AddtoLayer_1aa68d6152d0bc4b8aec7a6e7a8683a38a"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10AddtoLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. </p>
</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle10AddtoLayer7biases_E">
<span id="paddle::AddtoLayer::biases___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1AddtoLayer_1a721777e0ae048877047b6becba08da74"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">biases_</code><a class="headerlink" href="#_CPPv2N6paddle10AddtoLayer7biases_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="convexcombinationlayer">
<h2>ConvexCombinationLayer<a class="headerlink" href="#convexcombinationlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle22ConvexCombinationLayerE">
<span id="paddle::ConvexCombinationLayer"></span><span class="target" id="paddleclasspaddle_1_1ConvexCombinationLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">ConvexCombinationLayer</code><a class="headerlink" href="#_CPPv2N6paddle22ConvexCombinationLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>A layer for weighted sum of vectors, which is used in NEURAL MACHINE TRANSLATION BY JOINTLY LEARNING TO ALIGN AND TRANSLATE. </p>
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<p><ul class="simple">
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<li>Input: the the size of the first input is weightDim, and the size of the second input is weightdim * dataDim.</li>
<li>Output: the sizeof the output is dataDim <div class="math">
\[ out(j) = \sum_{i}(in0(i) * in1(i,j + i * dataDim)), i = 0,1,...,(weightDim-1); j = 0, 1,...,(dataDim-1) \]</div>
 Note that the above computation is for one sample. Multiple samples are processed in one batch.</li>
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</ul>
</p>
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<p>The config file api is linear_comb_layer. </p>
<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle22ConvexCombinationLayer22ConvexCombinationLayerERK11LayerConfig">
<span id="paddle::ConvexCombinationLayer::ConvexCombinationLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1ConvexCombinationLayer_1a5d272b77d1ac3b23745ad4ff1bb62c71"></span><code class="descname">ConvexCombinationLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle22ConvexCombinationLayer22ConvexCombinationLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle22ConvexCombinationLayerD0Ev">
<span id="paddle::ConvexCombinationLayer::~ConvexCombinationLayer"></span><span class="target" id="paddleclasspaddle_1_1ConvexCombinationLayer_1a3ec56c647eb147457bbf2cf6ee0a7cef"></span><code class="descname">~ConvexCombinationLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle22ConvexCombinationLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle22ConvexCombinationLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::ConvexCombinationLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1ConvexCombinationLayer_1a97027535635d3aaed1006a5f6bc5897f"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle22ConvexCombinationLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle22ConvexCombinationLayer7forwardE8PassType">
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<span id="paddle::ConvexCombinationLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1ConvexCombinationLayer_1a7563cbb89aa038191ede92bccdd41ef0"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle22ConvexCombinationLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle22ConvexCombinationLayer8backwardERK14UpdateCallback">
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<span id="paddle::ConvexCombinationLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1ConvexCombinationLayer_1a7a2b5fa5afc1f6f434b68a64890a6714"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle22ConvexCombinationLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle22ConvexCombinationLayer7tmpMtx0E">
<span id="paddle::ConvexCombinationLayer::tmpMtx0__MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1ConvexCombinationLayer_1a2fe15dbcc814c3edf95d8fd124b083f2"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">tmpMtx0</code><a class="headerlink" href="#_CPPv2N6paddle22ConvexCombinationLayer7tmpMtx0E" title="Permalink to this definition">¶</a></dt>
<dd><p>A matrix pointer pointing to second input. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle22ConvexCombinationLayer7tmpRow0E">
<span id="paddle::ConvexCombinationLayer::tmpRow0__MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1ConvexCombinationLayer_1a4e21a23bfe3f2de2cc7a455901bb8f9e"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">tmpRow0</code><a class="headerlink" href="#_CPPv2N6paddle22ConvexCombinationLayer7tmpRow0E" title="Permalink to this definition">¶</a></dt>
<dd><p>A matrix pointer pointing to first input. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle22ConvexCombinationLayer7tmpRow1E">
<span id="paddle::ConvexCombinationLayer::tmpRow1__MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1ConvexCombinationLayer_1af73d09c5a1054161cd21e347b1e8aec0"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">tmpRow1</code><a class="headerlink" href="#_CPPv2N6paddle22ConvexCombinationLayer7tmpRow1E" title="Permalink to this definition">¶</a></dt>
<dd><p>A matrix pointer pointing to output. </p>
</dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="interpolationlayer">
<h2>InterpolationLayer<a class="headerlink" href="#interpolationlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle18InterpolationLayerE">
<span id="paddle::InterpolationLayer"></span><span class="target" id="paddleclasspaddle_1_1InterpolationLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">InterpolationLayer</code><a class="headerlink" href="#_CPPv2N6paddle18InterpolationLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>A layer for linear interpolation with two inputs, which is used in NEURAL TURING MACHINE. <div class="math">
\[ y.row[i] = w[i] * x_1.row[i] + (1 - w[i]) * x_2.row[i] \]</div>
 where <span class="math">\(x_1\)</span> and <span class="math">\(x_2\)</span> are two (batchSize x dataDim) inputs, <span class="math">\(w\)</span> is (batchSize x 1) weight vector, and <span class="math">\(y\)</span> is (batchSize x dataDim) output.</p>
<p>The config file api is interpolation_layer. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle18InterpolationLayer18InterpolationLayerERK11LayerConfig">
<span id="paddle::InterpolationLayer::InterpolationLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1InterpolationLayer_1a97a9c4a46cf695bca75b456f852b4cea"></span><code class="descname">InterpolationLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle18InterpolationLayer18InterpolationLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle18InterpolationLayerD0Ev">
<span id="paddle::InterpolationLayer::~InterpolationLayer"></span><span class="target" id="paddleclasspaddle_1_1InterpolationLayer_1acd740f2136ebfa280ca82e637c76a56b"></span><code class="descname">~InterpolationLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle18InterpolationLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle18InterpolationLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::InterpolationLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1InterpolationLayer_1a68a058f25bf9dfc0c355bf77a4292390"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle18InterpolationLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle18InterpolationLayer7forwardE8PassType">
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<span id="paddle::InterpolationLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1InterpolationLayer_1aa4f31b725399d3f0b8b2ae0d05220f5a"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle18InterpolationLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle18InterpolationLayer8backwardERK14UpdateCallback">
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<span id="paddle::InterpolationLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1InterpolationLayer_1a5500c899aafa73066201b6d9a2fd91d4"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle18InterpolationLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle18InterpolationLayer11weightLast_E">
<span id="paddle::InterpolationLayer::weightLast___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1InterpolationLayer_1ab2ecce8a18e8cea2830f7f4be547d0cf"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">weightLast_</code><a class="headerlink" href="#_CPPv2N6paddle18InterpolationLayer11weightLast_E" title="Permalink to this definition">¶</a></dt>
<dd><p>weightLast = 1 - weight </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle18InterpolationLayer9tmpMatrixE">
<span id="paddle::InterpolationLayer::tmpMatrix__MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1InterpolationLayer_1a42ab7d2f40122d3610b3a1da479bccdc"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">tmpMatrix</code><a class="headerlink" href="#_CPPv2N6paddle18InterpolationLayer9tmpMatrixE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="multiplexlayer">
<h2>MultiplexLayer<a class="headerlink" href="#multiplexlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle14MultiplexLayerE">
<span id="paddle::MultiplexLayer"></span><span class="target" id="paddleclasspaddle_1_1MultiplexLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">MultiplexLayer</code><a class="headerlink" href="#_CPPv2N6paddle14MultiplexLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>This layer multiplex multiple layers according to the index, which is provided by the first input layer. </p>
<p><ul class="simple">
<li>Input[0]: the index of the layer to output of size batchSize.</li>
<li>Input[1:N]; the candidate output data. For each index i from 0 to batchSize -1, the output is the i-th row of the (index[i] + 1)-th layer.</li>
</ul>
</p>
<p>For each i-th row of output:</p>
<p><div class="math">
\[ y[i][j] = x_{x_{0}[i] + 1}[i][j], j = 0,1, ... , (x_{1}.width - 1) \]</div>
 where, y is output. <span class="math">\(x_{k}\)</span> is the k-th input layer and <span class="math">\(k = x_{0}[i] + 1\)</span>. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle14MultiplexLayer14MultiplexLayerERK11LayerConfig">
<span id="paddle::MultiplexLayer::MultiplexLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1MultiplexLayer_1a48862a84c1a3b2c38749482cf89ff821"></span><code class="descname">MultiplexLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14MultiplexLayer14MultiplexLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14MultiplexLayerD0Ev">
<span id="paddle::MultiplexLayer::~MultiplexLayer"></span><span class="target" id="paddleclasspaddle_1_1MultiplexLayer_1adab9fd195e872c89fe501760015fb3a3"></span><code class="descname">~MultiplexLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14MultiplexLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14MultiplexLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::MultiplexLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1MultiplexLayer_1a43b451c6ad0e5274fbdf88f31128f53d"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14MultiplexLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14MultiplexLayer7forwardE8PassType">
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<span id="paddle::MultiplexLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1MultiplexLayer_1af6e0f9ca3f04adcb49132950e77686fd"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14MultiplexLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14MultiplexLayer8backwardERK14UpdateCallback">
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<span id="paddle::MultiplexLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1MultiplexLayer_1af2f5758bd1874285d6db082b86595978"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14MultiplexLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
5798
<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle14MultiplexLayer13copySchedule_E">
<span id="paddle::MultiplexLayer::copySchedule___std::vector:CopyInfo:"></span><span class="target" id="paddleclasspaddle_1_1MultiplexLayer_1aaf1bcdd83f5803065748c42fd54f59be"></span>std::vector&lt;<a class="reference internal" href="#_CPPv2N6paddle14MultiplexLayer8CopyInfoE" title="paddle::MultiplexLayer::CopyInfo">CopyInfo</a>&gt; <code class="descname">copySchedule_</code><a class="headerlink" href="#_CPPv2N6paddle14MultiplexLayer13copySchedule_E" title="Permalink to this definition">¶</a></dt>
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<dd><p>A list of <a class="reference internal" href="#paddlestructpaddle_1_1MultiplexLayer_1_1CopyInfo"><span class="std std-ref">CopyInfo</span></a> used to save copy information. </p>
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</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14MultiplexLayer7tmpSrc_E">
<span id="paddle::MultiplexLayer::tmpSrc___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1MultiplexLayer_1af0a02a0282eea35ce5ab3c1f6a478edd"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">tmpSrc_</code><a class="headerlink" href="#_CPPv2N6paddle14MultiplexLayer7tmpSrc_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Temporary matrix pointer to point to input data. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14MultiplexLayer8tmpDest_E">
<span id="paddle::MultiplexLayer::tmpDest___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1MultiplexLayer_1a8cc702de8c7e6291f1299a6bebd270cc"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">tmpDest_</code><a class="headerlink" href="#_CPPv2N6paddle14MultiplexLayer8tmpDest_E" title="Permalink to this definition">¶</a></dt>
<dd><p>Temporary matrix pointer to point to output data. </p>
</dd></dl>

</div>
<dl class="class">
<dt id="_CPPv2N6paddle14MultiplexLayer8CopyInfoE">
<span id="paddle::MultiplexLayer::CopyInfo"></span><span class="target" id="paddlestructpaddle_1_1MultiplexLayer_1_1CopyInfo"></span><em class="property">struct </em><code class="descname">CopyInfo</code><a class="headerlink" href="#_CPPv2N6paddle14MultiplexLayer8CopyInfoE" title="Permalink to this definition">¶</a></dt>
<dd><p>A struct is used to save the copy information, includes input layer index and copy size. </p>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle14MultiplexLayer8CopyInfo8CopyInfoEiii">
<span id="paddle::MultiplexLayer::CopyInfo::CopyInfo__i.i.i"></span><span class="target" id="paddlestructpaddle_1_1MultiplexLayer_1_1CopyInfo_1a42965c05afef2ad646833e297385fafb"></span><code class="descname">CopyInfo</code><span class="sig-paren">(</span>int <em>inStartIdx</em>, int <em>inLength</em>, int <em>inCopyIdx</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14MultiplexLayer8CopyInfo8CopyInfoEiii" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Members</p>
<dl class="member">
<dt id="_CPPv2N6paddle14MultiplexLayer8CopyInfo8startIdxE">
<span id="paddle::MultiplexLayer::CopyInfo::startIdx__i"></span><span class="target" id="paddlestructpaddle_1_1MultiplexLayer_1_1CopyInfo_1a2f723bad98553f0eca64f3afc5df230d"></span>int <code class="descname">startIdx</code><a class="headerlink" href="#_CPPv2N6paddle14MultiplexLayer8CopyInfo8startIdxE" title="Permalink to this definition">¶</a></dt>
<dd><p>The start row of input. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14MultiplexLayer8CopyInfo6lengthE">
<span id="paddle::MultiplexLayer::CopyInfo::length__i"></span><span class="target" id="paddlestructpaddle_1_1MultiplexLayer_1_1CopyInfo_1a9b0ce33c4285003a8b09ac26a62b6115"></span>int <code class="descname">length</code><a class="headerlink" href="#_CPPv2N6paddle14MultiplexLayer8CopyInfo6lengthE" title="Permalink to this definition">¶</a></dt>
<dd><p>Number of rows. If the layer index in Input[0] is not consecutive, the length is one. Otherwise, the length is &gt; 1 and copy multi rows once. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14MultiplexLayer8CopyInfo7copyIdxE">
<span id="paddle::MultiplexLayer::CopyInfo::copyIdx__i"></span><span class="target" id="paddlestructpaddle_1_1MultiplexLayer_1_1CopyInfo_1a88b04b8a5824a28dd9e919c759b7c69e"></span>int <code class="descname">copyIdx</code><a class="headerlink" href="#_CPPv2N6paddle14MultiplexLayer8CopyInfo7copyIdxE" title="Permalink to this definition">¶</a></dt>
<dd><p>The copied layer index, which needs to add 1. </p>
</dd></dl>

</div>
</dd></dl>

</dd></dl>

</div>
<div class="section" id="outerprodlayer">
<h2>OuterProdLayer<a class="headerlink" href="#outerprodlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle14OuterProdLayerE">
<span id="paddle::OuterProdLayer"></span><span class="target" id="paddleclasspaddle_1_1OuterProdLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">OuterProdLayer</code><a class="headerlink" href="#_CPPv2N6paddle14OuterProdLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>A layer for computing the outer product of two vectors. </p>
<p><dl class="docutils">
<dt><strong>Note</strong></dt>
<dd>used in NEURAL TURING MACHINE Input1: vector (batchSize * dim1) Input2: vector (batchSize * dim2) Output: a matrix: (batchSize * (dim1*dim2)) </dd>
</dl>
</p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle14OuterProdLayer14OuterProdLayerERK11LayerConfig">
<span id="paddle::OuterProdLayer::OuterProdLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1OuterProdLayer_1af1df85cd5d336b5c54004526604ada01"></span><code class="descname">OuterProdLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14OuterProdLayer14OuterProdLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14OuterProdLayerD0Ev">
<span id="paddle::OuterProdLayer::~OuterProdLayer"></span><span class="target" id="paddleclasspaddle_1_1OuterProdLayer_1a32a52a7ba9231a9d87348f5e0b9c3a7c"></span><code class="descname">~OuterProdLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14OuterProdLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14OuterProdLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::OuterProdLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1OuterProdLayer_1a3d52545b40e74b700457d9494684a136"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14OuterProdLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14OuterProdLayer7forwardE8PassType">
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<span id="paddle::OuterProdLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1OuterProdLayer_1a90c5ed28f0a7cd1aa5d65f7d883b3bed"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14OuterProdLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14OuterProdLayer8backwardERK14UpdateCallback">
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<span id="paddle::OuterProdLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1OuterProdLayer_1a68c7efc8d776055b9ced973f742c4ce5"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14OuterProdLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
5900
<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle14OuterProdLayer7tmpMtx0E">
<span id="paddle::OuterProdLayer::tmpMtx0__MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1OuterProdLayer_1ad7639193b9f3a24bccd023a0e71aca3e"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">tmpMtx0</code><a class="headerlink" href="#_CPPv2N6paddle14OuterProdLayer7tmpMtx0E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14OuterProdLayer7tmpRow0E">
<span id="paddle::OuterProdLayer::tmpRow0__MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1OuterProdLayer_1ae9d7a6dd4be89a0e50b2bf58314cc735"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">tmpRow0</code><a class="headerlink" href="#_CPPv2N6paddle14OuterProdLayer7tmpRow0E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14OuterProdLayer7tmpRow1E">
<span id="paddle::OuterProdLayer::tmpRow1__MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1OuterProdLayer_1abe2ffc4ddbdc66df6a2b58ab4bc59d27"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">tmpRow1</code><a class="headerlink" href="#_CPPv2N6paddle14OuterProdLayer7tmpRow1E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="powerlayer">
<h2>PowerLayer<a class="headerlink" href="#powerlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle10PowerLayerE">
<span id="paddle::PowerLayer"></span><span class="target" id="paddleclasspaddle_1_1PowerLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">PowerLayer</code><a class="headerlink" href="#_CPPv2N6paddle10PowerLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>This layer applys a power function to a vector element-wise, which is used in NEURAL TURING MACHINE. <div class="math">
\[ y = x^w \]</div>
 where <span class="math">\(x\)</span> is a input vector, <span class="math">\(w\)</span> is scalar weight, and output <span class="math">\(y\)</span> is a vector.</p>
<p>The config file api is power_layer. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle10PowerLayer10PowerLayerERK11LayerConfig">
<span id="paddle::PowerLayer::PowerLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1PowerLayer_1a6823ff023cf973fb53f40511b83e4257"></span><code class="descname">PowerLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10PowerLayer10PowerLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10PowerLayerD0Ev">
<span id="paddle::PowerLayer::~PowerLayer"></span><span class="target" id="paddleclasspaddle_1_1PowerLayer_1aa5f48682342b5133978176f7636e1256"></span><code class="descname">~PowerLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10PowerLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10PowerLayer4initERK8LayerMapRK12ParameterMap">
5949
<span id="paddle::PowerLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1PowerLayer_1adb1efe66fe668b17bb55b9b5b2f32d9c"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10PowerLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10PowerLayer7forwardE8PassType">
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<span id="paddle::PowerLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1PowerLayer_1a57443ec5786b701036890c2b0b79adae"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10PowerLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10PowerLayer8backwardERK14UpdateCallback">
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<span id="paddle::PowerLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1PowerLayer_1a6107f616bce15fc13f1bae7557b54b62"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10PowerLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
5962
<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle10PowerLayer6tmpMtxE">
<span id="paddle::PowerLayer::tmpMtx__MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1PowerLayer_1a6fcb794dacb7f1e96fe38426b2e8b067"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">tmpMtx</code><a class="headerlink" href="#_CPPv2N6paddle10PowerLayer6tmpMtxE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="scalinglayer">
<h2>ScalingLayer<a class="headerlink" href="#scalinglayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle12ScalingLayerE">
<span id="paddle::ScalingLayer"></span><span class="target" id="paddleclasspaddle_1_1ScalingLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">ScalingLayer</code><a class="headerlink" href="#_CPPv2N6paddle12ScalingLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>A layer for each row of a matrix, multiplying with a element of a vector, which is used in NEURAL TURING MACHINE. <div class="math">
\[ y.row[i] = w[i] * x.row[i] \]</div>
 where <span class="math">\(x\)</span> is (batchSize x dataDim) input, <span class="math">\(w\)</span> is (batchSize x 1) weight vector, and <span class="math">\(y\)</span> is (batchSize x dataDim) output.</p>
<p>The config file api is scaling_layer. </p>
5986
<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle12ScalingLayer12ScalingLayerERK11LayerConfig">
<span id="paddle::ScalingLayer::ScalingLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1ScalingLayer_1a12d4af7fb2e69f70e7d009f4e620b620"></span><code class="descname">ScalingLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle12ScalingLayer12ScalingLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle12ScalingLayerD0Ev">
<span id="paddle::ScalingLayer::~ScalingLayer"></span><span class="target" id="paddleclasspaddle_1_1ScalingLayer_1ab550feba3880a580f4a29e46fb9dd023"></span><code class="descname">~ScalingLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle12ScalingLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle12ScalingLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::ScalingLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1ScalingLayer_1aee1413e885cf16d43d503670c7fd1ba4"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle12ScalingLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle12ScalingLayer7forwardE8PassType">
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<span id="paddle::ScalingLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1ScalingLayer_1af2aac14c733bde36af5eddc4143779ed"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle12ScalingLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle12ScalingLayer8backwardERK14UpdateCallback">
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<span id="paddle::ScalingLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1ScalingLayer_1a7c6e7ffb64a5cbd3c5fa3ae9bb6645f7"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle12ScalingLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="slopeinterceptlayer">
<h2>SlopeInterceptLayer<a class="headerlink" href="#slopeinterceptlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle19SlopeInterceptLayerE">
<span id="paddle::SlopeInterceptLayer"></span><span class="target" id="paddleclasspaddle_1_1SlopeInterceptLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">SlopeInterceptLayer</code><a class="headerlink" href="#_CPPv2N6paddle19SlopeInterceptLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>A layer for applying a slope and an intercept to the input element-wise. This layer is used in NEURAL TURING MACHINE. </p>
<p><div class="math">
\[ y = ax + b \]</div>
<dl class="docutils">
<dt><strong>Note</strong></dt>
<dd>There is no activation and weight in this layer.</dd>
</dl>
</p>
<p>Here, a is scale and b is offset, which are provided as attributes of the layer.</p>
<p>The config file api is slope_intercept_layer. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle19SlopeInterceptLayer19SlopeInterceptLayerERK11LayerConfig">
<span id="paddle::SlopeInterceptLayer::SlopeInterceptLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1SlopeInterceptLayer_1a45c68e132517d11d72fda5dd5ced973e"></span><code class="descname">SlopeInterceptLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19SlopeInterceptLayer19SlopeInterceptLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19SlopeInterceptLayerD0Ev">
<span id="paddle::SlopeInterceptLayer::~SlopeInterceptLayer"></span><span class="target" id="paddleclasspaddle_1_1SlopeInterceptLayer_1af52fb3eb6bd263b80764097479a22e70"></span><code class="descname">~SlopeInterceptLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19SlopeInterceptLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19SlopeInterceptLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::SlopeInterceptLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1SlopeInterceptLayer_1a537b29cdbc58f564b7b5941179e21523"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19SlopeInterceptLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19SlopeInterceptLayer7forwardE8PassType">
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<span id="paddle::SlopeInterceptLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1SlopeInterceptLayer_1a04bb776059020f4fb28746ccfc8ec291"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19SlopeInterceptLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle19SlopeInterceptLayer8backwardERK14UpdateCallback">
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<span id="paddle::SlopeInterceptLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1SlopeInterceptLayer_1a21c644e2e7d8e030402fdd27d3d858cb"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle19SlopeInterceptLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="tensorlayer">
<h2>TensorLayer<a class="headerlink" href="#tensorlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle11TensorLayerE">
<span id="paddle::TensorLayer"></span><span class="target" id="paddleclasspaddle_1_1TensorLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">TensorLayer</code><a class="headerlink" href="#_CPPv2N6paddle11TensorLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p><a class="reference internal" href="#paddleclasspaddle_1_1TensorLayer"><span class="std std-ref">TensorLayer</span></a> takes two input vectors. <div class="math">
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\[ y_{i} = x_{1} * W_{i} * x_{2}^{\rm T}, i=0, 1, ...,K-1 \]</div>
. </p>
<p><ul class="simple">
<li><span class="math">\(x_{1}\)</span>: the first input, size is M.</li>
<li><span class="math">\(x_{2}\)</span>: the second input, size is N.</li>
<li>y: output, size is K.</li>
<li><span class="math">\(y_{i}\)</span>: i-th element of y.</li>
<li><span class="math">\(W_{i}\)</span>: the i-th learned weight, dimensions: [M, N].</li>
<li><span class="math">\(x_{2}^{\rm T}\)</span>: the transpose of <span class="math">\(x_{2}\)</span>.</li>
</ul>
</p>
<p>The config file api is tensor_layer. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle11TensorLayer11TensorLayerERK11LayerConfig">
<span id="paddle::TensorLayer::TensorLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1TensorLayer_1a948561a77a5cf8757166e4dab7ad227f"></span><code class="descname">TensorLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11TensorLayer11TensorLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11TensorLayerD0Ev">
<span id="paddle::TensorLayer::~TensorLayer"></span><span class="target" id="paddleclasspaddle_1_1TensorLayer_1af8d010846003261eec735c6647eff815"></span><code class="descname">~TensorLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11TensorLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11TensorLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::TensorLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1TensorLayer_1a9396ba98cf48558d69bb5dc6621f0603"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11TensorLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11TensorLayer9getWeightEi">
<span id="paddle::TensorLayer::getWeight__i"></span><span class="target" id="paddleclasspaddle_1_1TensorLayer_1a1d229726a0d811b9b0600008ae1882d6"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a> &amp;<code class="descname">getWeight</code><span class="sig-paren">(</span>int <em>idx</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11TensorLayer9getWeightEi" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11TensorLayer7forwardE8PassType">
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<span id="paddle::TensorLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1TensorLayer_1aaf9540a6fa7e31cadc5274157f293f64"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11TensorLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11TensorLayer8backwardERK14UpdateCallback">
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<span id="paddle::TensorLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1TensorLayer_1a9e7415385b7e5930e5d0ef1087e3b76f"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11TensorLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle11TensorLayer8weights_E">
<span id="paddle::TensorLayer::weights___WeightList"></span><span class="target" id="paddleclasspaddle_1_1TensorLayer_1ab2e3e6498fadc37ad3983cbd69833655"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle10WeightListE" title="paddle::WeightList">WeightList</a> <code class="descname">weights_</code><a class="headerlink" href="#_CPPv2N6paddle11TensorLayer8weights_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle11TensorLayer7biases_E">
<span id="paddle::TensorLayer::biases___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1TensorLayer_1a346514a9c37ef3ea185157b2b2877d35"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">biases_</code><a class="headerlink" href="#_CPPv2N6paddle11TensorLayer7biases_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="translayer">
<h2>TransLayer<a class="headerlink" href="#translayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle10TransLayerE">
<span id="paddle::TransLayer"></span><span class="target" id="paddleclasspaddle_1_1TransLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">TransLayer</code><a class="headerlink" href="#_CPPv2N6paddle10TransLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>A layer for transposition. <div class="math">
\[ y = x^\mathrm{T} \]</div>
 where <span class="math">\(x\)</span> is (M x N) input, and <span class="math">\(y\)</span> is (N x M) output.</p>
<p>The config file api is trans_layer. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle10TransLayer10TransLayerERK11LayerConfig">
<span id="paddle::TransLayer::TransLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1TransLayer_1abf5335f246b7c4b53b62ff0b0f329d07"></span><code class="descname">TransLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10TransLayer10TransLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10TransLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::TransLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1TransLayer_1a15028b4c861d7f100d6d020346731712"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10TransLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10TransLayer7forwardE8PassType">
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<span id="paddle::TransLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1TransLayer_1ad853f72f7f1fd81be8ba163276eeab1a"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10TransLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10TransLayer8backwardERK14UpdateCallback">
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<span id="paddle::TransLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1TransLayer_1aea505e74c05adacca8244e274d31bed5"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10TransLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
</dd></dl>

</div>
</div>
<div class="section" id="sampling-layers">
<h1>Sampling Layers<a class="headerlink" href="#sampling-layers" title="Permalink to this headline">¶</a></h1>
<div class="section" id="multinomialsampler">
<h2>MultinomialSampler<a class="headerlink" href="#multinomialsampler" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle18MultinomialSamplerE">
<span id="paddle::MultinomialSampler"></span><span class="target" id="paddleclasspaddle_1_1MultinomialSampler"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">MultinomialSampler</code><a class="headerlink" href="#_CPPv2N6paddle18MultinomialSamplerE" title="Permalink to this definition">¶</a></dt>
<dd><p>Given the probability of N objects, the sampler random select one of the object. </p>
<p>
The space requirement is O(N)=O(N * sizeof(Interval)). The computational complexity of generate one sample is O(1). <dl class="docutils">
<dt><strong>Note</strong></dt>
<dd>: prob does not have to be unnormalized.</dd>
</dl>
</p>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle18MultinomialSampler18MultinomialSamplerEPK4reali">
<span id="paddle::MultinomialSampler::MultinomialSampler__realCP.i"></span><span class="target" id="paddleclasspaddle_1_1MultinomialSampler_1abdec5c025615002a89222c72115715e6"></span><code class="descname">MultinomialSampler</code><span class="sig-paren">(</span><em class="property">const</em> real *<em>prob</em>, int <em>size</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle18MultinomialSampler18MultinomialSamplerEPK4reali" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt>
<em class="property">template </em>&lt;<em class="property">typename</em> URNG&gt;</dt>
<dt id="_CPPv2N6paddle18MultinomialSampler3genER4URNG">
<span id="paddle::MultinomialSampler::gen__URNGR"></span><span class="target" id="paddleclasspaddle_1_1MultinomialSampler_1ad77b6724f10945930f2b72a4d0f7d5a2"></span>int <code class="descname">gen</code><span class="sig-paren">(</span>URNG &amp;<em>g</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle18MultinomialSampler3genER4URNG" title="Permalink to this definition">¶</a></dt>
<dd><p>Generate a random sample. </p>
<p><dl class="docutils">
<dt><strong>Return</strong></dt>
<dd>Random integer. </dd>
<dt><strong>Parameters</strong></dt>
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<dd><ul class="breatheparameterlist first last simple">
<li><code class="docutils literal"><span class="pre">g</span></code>: is a random number engine. See &lt;random&gt;. </li>
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</ul>
</dd>
</dl>
</p>
</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Functions</p>
<dl class="function">
<dt>
<em class="property">template </em>&lt;<em class="property">typename</em> Rand&gt;</dt>
<dt id="_CPPv2N6paddle18MultinomialSampler4gen1E4Rand">
<span id="paddle::MultinomialSampler::gen1__Rand"></span><span class="target" id="paddleclasspaddle_1_1MultinomialSampler_1abc18ecafa9cb57ca739dfc6c3df03081"></span>int <code class="descname">gen1</code><span class="sig-paren">(</span>Rand <em>rand</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle18MultinomialSampler4gen1E4Rand" title="Permalink to this definition">¶</a></dt>
<dd><p>Generation. </p>
<p><dl class="docutils">
<dt><strong>Return</strong></dt>
<dd>random int number or intervals_[random_int_number].otherId. </dd>
<dt><strong>Parameters</strong></dt>
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<dd><ul class="breatheparameterlist first last simple">
<li><code class="docutils literal"><span class="pre">rand</span></code>: rand is a real random number distribution for the range [0, size). </li>
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</ul>
</dd>
</dl>
</p>
</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle18MultinomialSampler10intervals_E">
<span id="paddle::MultinomialSampler::intervals___std::vector:Interval:"></span><span class="target" id="paddleclasspaddle_1_1MultinomialSampler_1a79d0b2062d6a159b63e104ddabf09ff1"></span>std::vector&lt;<a class="reference internal" href="#_CPPv2N6paddle18MultinomialSampler8IntervalE" title="paddle::MultinomialSampler::Interval">Interval</a>&gt; <code class="descname">intervals_</code><a class="headerlink" href="#_CPPv2N6paddle18MultinomialSampler10intervals_E" title="Permalink to this definition">¶</a></dt>
<dd><p>The probability of each interval will be 1./size. </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle18MultinomialSampler5rand_E">
<span id="paddle::MultinomialSampler::rand___std::uniform_real_distribution:double:"></span><span class="target" id="paddleclasspaddle_1_1MultinomialSampler_1a17f7879b3623a007b9bbd8fe6a1e0bd8"></span>std::uniform_real_distribution&lt;double&gt; <code class="descname">rand_</code><a class="headerlink" href="#_CPPv2N6paddle18MultinomialSampler5rand_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
<dl class="class">
<dt id="_CPPv2N6paddle18MultinomialSampler8IntervalE">
<span id="paddle::MultinomialSampler::Interval"></span><span class="target" id="paddlestructpaddle_1_1MultinomialSampler_1_1Interval"></span><em class="property">struct </em><code class="descname">Interval</code><a class="headerlink" href="#_CPPv2N6paddle18MultinomialSampler8IntervalE" title="Permalink to this definition">¶</a></dt>
<dd><div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Members</p>
<dl class="member">
<dt id="_CPPv2N6paddle18MultinomialSampler8Interval7otherIdE">
<span id="paddle::MultinomialSampler::Interval::otherId__i"></span><span class="target" id="paddlestructpaddle_1_1MultinomialSampler_1_1Interval_1a92112f797119ce1f63fc6a63601b4c8b"></span>int <code class="descname">otherId</code><a class="headerlink" href="#_CPPv2N6paddle18MultinomialSampler8Interval7otherIdE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle18MultinomialSampler8Interval6threshE">
<span id="paddle::MultinomialSampler::Interval::thresh__real"></span><span class="target" id="paddlestructpaddle_1_1MultinomialSampler_1_1Interval_1a73a57b9d3fde132ea8306f325b694be0"></span>real <code class="descname">thresh</code><a class="headerlink" href="#_CPPv2N6paddle18MultinomialSampler8Interval6threshE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</dd></dl>

</div>
<div class="section" id="maxidlayer">
<h2>MaxIdLayer<a class="headerlink" href="#maxidlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle10MaxIdLayerE">
<span id="paddle::MaxIdLayer"></span><span class="target" id="paddleclasspaddle_1_1MaxIdLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">MaxIdLayer</code><a class="headerlink" href="#_CPPv2N6paddle10MaxIdLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>A layer for finding the id which has the maximal value for each sample. The result is stored in output_.ids.</p>
<p>The config file api is maxid_layer. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle10MaxIdLayer10MaxIdLayerERK11LayerConfig">
<span id="paddle::MaxIdLayer::MaxIdLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1MaxIdLayer_1ab37f1c000aeb0a01990f43fdfde9503b"></span><code class="descname">MaxIdLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10MaxIdLayer10MaxIdLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10MaxIdLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::MaxIdLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1MaxIdLayer_1a32bc6c36eb04fd65fb895f8868a558db"></span><em class="property">virtual</em> bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10MaxIdLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10MaxIdLayer7forwardE8PassType">
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<span id="paddle::MaxIdLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1MaxIdLayer_1ad7fde1ecd25d0f28881429c748c15fd4"></span><em class="property">virtual</em> void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10MaxIdLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10MaxIdLayer8backwardERK14UpdateCallback">
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<span id="paddle::MaxIdLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1MaxIdLayer_1a29524c685111e990598eb2787ce74ef3"></span><em class="property">virtual</em> void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10MaxIdLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="samplingidlayer">
<h2>SamplingIdLayer<a class="headerlink" href="#samplingidlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle15SamplingIdLayerE">
<span id="paddle::SamplingIdLayer"></span><span class="target" id="paddleclasspaddle_1_1SamplingIdLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">SamplingIdLayer</code><a class="headerlink" href="#_CPPv2N6paddle15SamplingIdLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>A layer for sampling id from multinomial distribution from the input layer. Sampling one id for one sample. The result is stored in output_.ids. </p>
<p>The config file api is sampling_id_layer. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle15SamplingIdLayer15SamplingIdLayerERK11LayerConfig">
<span id="paddle::SamplingIdLayer::SamplingIdLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1SamplingIdLayer_1ac856de1d1261fe3974370b7256397146"></span><code class="descname">SamplingIdLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15SamplingIdLayer15SamplingIdLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15SamplingIdLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::SamplingIdLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1SamplingIdLayer_1ab326ef42097d3bb2764e71944b198c9a"></span><em class="property">virtual</em> bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15SamplingIdLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15SamplingIdLayer7forwardE8PassType">
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<span id="paddle::SamplingIdLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1SamplingIdLayer_1a24fa50c609e771c61154519751266838"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15SamplingIdLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15SamplingIdLayer10forwardImpERK8Argument">
<span id="paddle::SamplingIdLayer::forwardImp__ArgumentCR"></span><span class="target" id="paddleclasspaddle_1_1SamplingIdLayer_1a3db971bb58438a166fd4bab3cf69835a"></span>void <code class="descname">forwardImp</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>input</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15SamplingIdLayer10forwardImpERK8Argument" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15SamplingIdLayer8backwardERK14UpdateCallback">
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<span id="paddle::SamplingIdLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1SamplingIdLayer_1a6a635c2baa4243f739f9af2f6485da4d"></span><em class="property">virtual</em> void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15SamplingIdLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
</dd></dl>

</div>
</div>
<div class="section" id="cost-layers">
<h1>Cost Layers<a class="headerlink" href="#cost-layers" title="Permalink to this headline">¶</a></h1>
<div class="section" id="costlayer">
<h2>CostLayer<a class="headerlink" href="#costlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle9CostLayerE">
<span id="paddle::CostLayer"></span><span class="target" id="paddleclasspaddle_1_1CostLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">CostLayer</code><a class="headerlink" href="#_CPPv2N6paddle9CostLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>Base class for a particular type of cost layer. This type of cost should have one data layer, one label layer and an optional weight layer as input. The derived class should implemnt forwardImp() and backwardImp() which calculate the cost for data and label. The weight is automatically handled by the base class. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
<p>Subclassed by <a class="reference internal" href="#paddleclasspaddle_1_1HuberTwoClass"><span class="std std-ref">paddle::HuberTwoClass</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1MultiBinaryLabelCrossEntropy"><span class="std std-ref">paddle::MultiBinaryLabelCrossEntropy</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1MultiClassCrossEntropy"><span class="std std-ref">paddle::MultiClassCrossEntropy</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1MultiClassCrossEntropyWithSelfNorm"><span class="std std-ref">paddle::MultiClassCrossEntropyWithSelfNorm</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1SoftBinaryClassCrossEntropy"><span class="std std-ref">paddle::SoftBinaryClassCrossEntropy</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1SumOfSquaresCostLayer"><span class="std std-ref">paddle::SumOfSquaresCostLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle9CostLayer9CostLayerERK11LayerConfig">
<span id="paddle::CostLayer::CostLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1CostLayer_1a091a6893b7b4149a2152cc1f910b2442"></span><code class="descname">CostLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9CostLayer9CostLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle9CostLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::CostLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1CostLayer_1a9e45d06813dfb5f8f12b52cb5cea916c"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9CostLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle9CostLayer14getOutputLayerEv">
<span id="paddle::CostLayer::getOutputLayer"></span><span class="target" id="paddleclasspaddle_1_1CostLayer_1ac8085623913acdd082c5e8bc66972184"></span>LayerPtr <code class="descname">getOutputLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9CostLayer14getOutputLayerEv" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle9CostLayer13getLabelLayerEv">
<span id="paddle::CostLayer::getLabelLayer"></span><span class="target" id="paddleclasspaddle_1_1CostLayer_1a64a7499f9594553ac4e7ac93fea4801c"></span>LayerPtr <code class="descname">getLabelLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9CostLayer13getLabelLayerEv" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle9CostLayer7forwardE8PassType">
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<span id="paddle::CostLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1CostLayer_1aa78b8d0ef1984c3ae0e00592032be687"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9CostLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle9CostLayer8backwardERK14UpdateCallback">
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<span id="paddle::CostLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1CostLayer_1a075f1d0143e93363eb4c24859e7c48db"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle9CostLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle9CostLayer10forwardImpER6MatrixR8ArgumentR6Matrix">
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<span id="paddle::CostLayer::forwardImp__MatrixR.ArgumentR.MatrixR"></span><span class="target" id="paddleclasspaddle_1_1CostLayer_1a283f961db5a5e34eb988bff20fd1395a"></span><em class="property">virtual</em> void <code class="descname">forwardImp</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>outputValue</em>, <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>label</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>cost</em><span class="sig-paren">)</span> = 0<a class="headerlink" href="#_CPPv2N6paddle9CostLayer10forwardImpER6MatrixR8ArgumentR6Matrix" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle9CostLayer11backwardImpER6MatrixR8ArgumentR6Matrix">
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<span id="paddle::CostLayer::backwardImp__MatrixR.ArgumentR.MatrixR"></span><span class="target" id="paddleclasspaddle_1_1CostLayer_1a4f47d7e20b3eaddc4925f75d2e66146b"></span><em class="property">virtual</em> void <code class="descname">backwardImp</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>outputValue</em>, <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>label</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>outputGrad</em><span class="sig-paren">)</span> = 0<a class="headerlink" href="#_CPPv2N6paddle9CostLayer11backwardImpER6MatrixR8ArgumentR6Matrix" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle9CostLayer12weightLayer_E">
<span id="paddle::CostLayer::weightLayer___LayerPtr"></span><span class="target" id="paddleclasspaddle_1_1CostLayer_1aeacf427349162ea41ffc2151ced09ad9"></span>LayerPtr <code class="descname">weightLayer_</code><a class="headerlink" href="#_CPPv2N6paddle9CostLayer12weightLayer_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle9CostLayer6coeff_E">
<span id="paddle::CostLayer::coeff___real"></span><span class="target" id="paddleclasspaddle_1_1CostLayer_1a5fc0ec2edf44217f2b942426556c36d3"></span>real <code class="descname">coeff_</code><a class="headerlink" href="#_CPPv2N6paddle9CostLayer6coeff_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

<div class="section" id="hubertwoclass">
<h3>HuberTwoClass<a class="headerlink" href="#hubertwoclass" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="_CPPv2N6paddle13HuberTwoClassE">
<span id="paddle::HuberTwoClass"></span><span class="target" id="paddleclasspaddle_1_1HuberTwoClass"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">HuberTwoClass</code><a class="headerlink" href="#_CPPv2N6paddle13HuberTwoClassE" title="Permalink to this definition">¶</a></dt>
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<dd><p>Huber loss for robust 2-classes classification.</p>
<p>For label={0, 1}, let y=2*label-1. Given output f, the loss is: <div class="math">
\[\begin{split} Loss = \left\{\begin{matrix} 4 * y * f &amp; \textit{if} \ \ y* f &lt; -1 \\ (1 - y * f)^2 &amp; \textit{if} \ \ -1 &lt; y * f &lt; 1 \\ 0 &amp; \textit{otherwise} \end{matrix}\right. \end{split}\]</div>
 </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1CostLayer"><span class="std std-ref">paddle::CostLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle13HuberTwoClass13HuberTwoClassERK11LayerConfig">
<span id="paddle::HuberTwoClass::HuberTwoClass__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1HuberTwoClass_1a12f0f4467b7da6613ebfc363ff1aeb8b"></span><code class="descname">HuberTwoClass</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13HuberTwoClass13HuberTwoClassERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13HuberTwoClass4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::HuberTwoClass::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1HuberTwoClass_1a1b12599abee6dda6b2fb2bff1675d93a"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13HuberTwoClass4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13HuberTwoClass10forwardImpER6MatrixR8ArgumentR6Matrix">
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<span id="paddle::HuberTwoClass::forwardImp__MatrixR.ArgumentR.MatrixR"></span><span class="target" id="paddleclasspaddle_1_1HuberTwoClass_1ab29f41a7f82870dd2b3ea00d0e797dd5"></span>void <code class="descname">forwardImp</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>output</em>, <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>label</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>cost</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13HuberTwoClass10forwardImpER6MatrixR8ArgumentR6Matrix" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13HuberTwoClass12forwardImpInER6MatrixR8ArgumentR6Matrix">
<span id="paddle::HuberTwoClass::forwardImpIn__MatrixR.ArgumentR.MatrixR"></span><span class="target" id="paddleclasspaddle_1_1HuberTwoClass_1aec7436147ec76f89c208bc44158a8bea"></span>void <code class="descname">forwardImpIn</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>output</em>, <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>label</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>cost</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13HuberTwoClass12forwardImpInER6MatrixR8ArgumentR6Matrix" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13HuberTwoClass11backwardImpER6MatrixR8ArgumentR6Matrix">
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<span id="paddle::HuberTwoClass::backwardImp__MatrixR.ArgumentR.MatrixR"></span><span class="target" id="paddleclasspaddle_1_1HuberTwoClass_1a18abfe1ad0d2eec6018e8b98eb12909a"></span>void <code class="descname">backwardImp</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>outputValue</em>, <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>label</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>outputGrad</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13HuberTwoClass11backwardImpER6MatrixR8ArgumentR6Matrix" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13HuberTwoClass13backwardImpInER6MatrixR8ArgumentR6Matrix">
<span id="paddle::HuberTwoClass::backwardImpIn__MatrixR.ArgumentR.MatrixR"></span><span class="target" id="paddleclasspaddle_1_1HuberTwoClass_1a7742e711ac1801de5af17535b52652ac"></span>void <code class="descname">backwardImpIn</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>outputValue</em>, <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>label</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>outputGrad</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13HuberTwoClass13backwardImpInER6MatrixR8ArgumentR6Matrix" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="lambdacost">
<h3>LambdaCost<a class="headerlink" href="#lambdacost" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="_CPPv2N6paddle10LambdaCostE">
<span id="paddle::LambdaCost"></span><span class="target" id="paddleclasspaddle_1_1LambdaCost"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">LambdaCost</code><a class="headerlink" href="#_CPPv2N6paddle10LambdaCostE" title="Permalink to this definition">¶</a></dt>
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<dd><p>LambdaRank os a method for learning arbitrary information retrieval measures. It can be applied to any algorithm that learns through gradient descent. LambdaRank is a listwise method, in that the cost depends on the sorted order of the documents. LambdaRank gives the gradient of cost function:</p>
<p><div class="math">
\[ \lambda_{ij} = \frac{1}{1 + e^{o_i - o_j}} \left| \Delta_{NDCG} \right| \]</div>
</p>
<p>[1] Christopher J.C. Burges, Robert Ragno, Quoc Viet Le. Learning to Rank with Nonsmooth Cost Functions. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle10LambdaCost10LambdaCostERK11LayerConfig">
<span id="paddle::LambdaCost::LambdaCost__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1LambdaCost_1a632a61afa4d6fb85ffba100f79fee6d2"></span><code class="descname">LambdaCost</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10LambdaCost10LambdaCostERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10LambdaCost4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::LambdaCost::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1LambdaCost_1a73d70f4561f57455366014cc0ce158e7"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10LambdaCost4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10LambdaCost14getOutputLayerEv">
<span id="paddle::LambdaCost::getOutputLayer"></span><span class="target" id="paddleclasspaddle_1_1LambdaCost_1af30ec11bbe3c5ca5cabfb952c131977a"></span>LayerPtr <code class="descname">getOutputLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10LambdaCost14getOutputLayerEv" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10LambdaCost13getScoreLayerEv">
<span id="paddle::LambdaCost::getScoreLayer"></span><span class="target" id="paddleclasspaddle_1_1LambdaCost_1a57cdd6eae62a256eb3f0beba08aed894"></span>LayerPtr <code class="descname">getScoreLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10LambdaCost13getScoreLayerEv" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10LambdaCost7forwardE8PassType">
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<span id="paddle::LambdaCost::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1LambdaCost_1a6ac3e4f3b546222abfa19fd69bf41b01"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10LambdaCost7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10LambdaCost8backwardERK14UpdateCallback">
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<span id="paddle::LambdaCost::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1LambdaCost_1af7f79b600b793b60859a201aa66af3e4"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10LambdaCost8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10LambdaCost9onPassEndEv">
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<span id="paddle::LambdaCost::onPassEnd"></span><span class="target" id="paddleclasspaddle_1_1LambdaCost_1ad3d5bbe1a620ade44b59623053da0d39"></span>void <code class="descname">onPassEnd</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10LambdaCost9onPassEndEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>One pass is finished. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10LambdaCost8calcNDCGEPK4realPK4reali">
<span id="paddle::LambdaCost::calcNDCG__realCP.realCP.i"></span><span class="target" id="paddleclasspaddle_1_1LambdaCost_1ab1aab43db90d239172660df773081f2f"></span>real <code class="descname">calcNDCG</code><span class="sig-paren">(</span><em class="property">const</em> real *<em>outputScore</em>, <em class="property">const</em> real *<em>score</em>, int <em>size</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10LambdaCost8calcNDCGEPK4realPK4reali" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle10LambdaCost8calcGradEPK4realPK4realP4reali">
<span id="paddle::LambdaCost::calcGrad__realCP.realCP.realP.i"></span><span class="target" id="paddleclasspaddle_1_1LambdaCost_1a64be625219ae8008714fae7714ac1c2e"></span>void <code class="descname">calcGrad</code><span class="sig-paren">(</span><em class="property">const</em> real *<em>outputScore</em>, <em class="property">const</em> real *<em>score</em>, real *<em>gradData</em>, int <em>size</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle10LambdaCost8calcGradEPK4realPK4realP4reali" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="multibinarylabelcrossentropy">
<h3>MultiBinaryLabelCrossEntropy<a class="headerlink" href="#multibinarylabelcrossentropy" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="_CPPv2N6paddle28MultiBinaryLabelCrossEntropyE">
<span id="paddle::MultiBinaryLabelCrossEntropy"></span><span class="target" id="paddleclasspaddle_1_1MultiBinaryLabelCrossEntropy"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">MultiBinaryLabelCrossEntropy</code><a class="headerlink" href="#_CPPv2N6paddle28MultiBinaryLabelCrossEntropyE" title="Permalink to this definition">¶</a></dt>
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<dd><p>Cross entropy for multi binary labels. <div class="math">
\[ cost[i] = -sum(label[i][j]*log(output[i][j]) + (1-label[i][j])*log(1-output[i][j])) \]</div>
 </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1CostLayer"><span class="std std-ref">paddle::CostLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle28MultiBinaryLabelCrossEntropy28MultiBinaryLabelCrossEntropyERK11LayerConfig">
<span id="paddle::MultiBinaryLabelCrossEntropy::MultiBinaryLabelCrossEntropy__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1MultiBinaryLabelCrossEntropy_1a74e83fd2cf372b582edfc120a7730ab2"></span><code class="descname">MultiBinaryLabelCrossEntropy</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle28MultiBinaryLabelCrossEntropy28MultiBinaryLabelCrossEntropyERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle28MultiBinaryLabelCrossEntropy4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::MultiBinaryLabelCrossEntropy::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1MultiBinaryLabelCrossEntropy_1a6ee4833b0cade46c75647b273e2d7909"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle28MultiBinaryLabelCrossEntropy4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle28MultiBinaryLabelCrossEntropy10forwardImpER6MatrixR8ArgumentR6Matrix">
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<span id="paddle::MultiBinaryLabelCrossEntropy::forwardImp__MatrixR.ArgumentR.MatrixR"></span><span class="target" id="paddleclasspaddle_1_1MultiBinaryLabelCrossEntropy_1ad437bc05520ccda57287cc63a8cc4f35"></span>void <code class="descname">forwardImp</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>output</em>, <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>label</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>cost</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle28MultiBinaryLabelCrossEntropy10forwardImpER6MatrixR8ArgumentR6Matrix" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle28MultiBinaryLabelCrossEntropy11backwardImpER6MatrixR8ArgumentR6Matrix">
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<span id="paddle::MultiBinaryLabelCrossEntropy::backwardImp__MatrixR.ArgumentR.MatrixR"></span><span class="target" id="paddleclasspaddle_1_1MultiBinaryLabelCrossEntropy_1adb7148edf59bd5e3c6376b087fd70630"></span>void <code class="descname">backwardImp</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>outputValue</em>, <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>label</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>outputGrad</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle28MultiBinaryLabelCrossEntropy11backwardImpER6MatrixR8ArgumentR6Matrix" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle28MultiBinaryLabelCrossEntropy13targetPerDim_E">
<span id="paddle::MultiBinaryLabelCrossEntropy::targetPerDim___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1MultiBinaryLabelCrossEntropy_1a453945bdd0e32f06bc231fe4ae274713"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">targetPerDim_</code><a class="headerlink" href="#_CPPv2N6paddle28MultiBinaryLabelCrossEntropy13targetPerDim_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="multiclasscrossentropy">
<h3>MultiClassCrossEntropy<a class="headerlink" href="#multiclasscrossentropy" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="_CPPv2N6paddle22MultiClassCrossEntropyE">
<span id="paddle::MultiClassCrossEntropy"></span><span class="target" id="paddleclasspaddle_1_1MultiClassCrossEntropy"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">MultiClassCrossEntropy</code><a class="headerlink" href="#_CPPv2N6paddle22MultiClassCrossEntropyE" title="Permalink to this definition">¶</a></dt>
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<dd><p>The cross-entropy loss for multi-class classification task. The loss function is:</p>
<p><div class="math">
\[ L = - \sum_{i}{t_{k} * log(P(y=k))} \]</div>
 </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1CostLayer"><span class="std std-ref">paddle::CostLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle22MultiClassCrossEntropy22MultiClassCrossEntropyERK11LayerConfig">
<span id="paddle::MultiClassCrossEntropy::MultiClassCrossEntropy__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1MultiClassCrossEntropy_1ab392d32c462695596af1441c04aa23ea"></span><code class="descname">MultiClassCrossEntropy</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle22MultiClassCrossEntropy22MultiClassCrossEntropyERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle22MultiClassCrossEntropy4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::MultiClassCrossEntropy::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1MultiClassCrossEntropy_1a90f90a3f4274fb01415f25891419ca99"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle22MultiClassCrossEntropy4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle22MultiClassCrossEntropy10forwardImpER6MatrixR8ArgumentR6Matrix">
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<span id="paddle::MultiClassCrossEntropy::forwardImp__MatrixR.ArgumentR.MatrixR"></span><span class="target" id="paddleclasspaddle_1_1MultiClassCrossEntropy_1a4d5d5c3a49ac6a8fe11d4a63cb25e7b7"></span>void <code class="descname">forwardImp</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>output</em>, <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>label</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>cost</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle22MultiClassCrossEntropy10forwardImpER6MatrixR8ArgumentR6Matrix" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle22MultiClassCrossEntropy11backwardImpER6MatrixR8ArgumentR6Matrix">
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<span id="paddle::MultiClassCrossEntropy::backwardImp__MatrixR.ArgumentR.MatrixR"></span><span class="target" id="paddleclasspaddle_1_1MultiClassCrossEntropy_1a8b14e2f67a2acf942da5518b73afd3cf"></span>void <code class="descname">backwardImp</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>outputValue</em>, <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>label</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>outputGrad</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle22MultiClassCrossEntropy11backwardImpER6MatrixR8ArgumentR6Matrix" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="multiclasscrossentropywithselfnorm">
<h3>MultiClassCrossEntropyWithSelfNorm<a class="headerlink" href="#multiclasscrossentropywithselfnorm" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="_CPPv2N6paddle34MultiClassCrossEntropyWithSelfNormE">
<span id="paddle::MultiClassCrossEntropyWithSelfNorm"></span><span class="target" id="paddleclasspaddle_1_1MultiClassCrossEntropyWithSelfNorm"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">MultiClassCrossEntropyWithSelfNorm</code><a class="headerlink" href="#_CPPv2N6paddle34MultiClassCrossEntropyWithSelfNormE" title="Permalink to this definition">¶</a></dt>
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<dd><p>The cross-entropy with self-normalization for multi-class classification.</p>
<p>The loss function is: <div class="math">
\[ L = \sum_{i}[-log(P(x_{i})) + alpha * log(Z(x_{i})^2)] \]</div>
</p>
<p>The <span class="math">\(Z(x)\)</span> is the softmax normalizer.</p>
<p>[1] Jacob Devlin, Rabih Zbib, Zhongqiang Huang, Thomas Lamar, Richard Schwartz, and John Makhoul. Fast and robust neural network joint models for statistical machine translation. In Proceedings of the ACL 2014 Conference. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1CostLayer"><span class="std std-ref">paddle::CostLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle34MultiClassCrossEntropyWithSelfNorm34MultiClassCrossEntropyWithSelfNormERK11LayerConfig">
<span id="paddle::MultiClassCrossEntropyWithSelfNorm::MultiClassCrossEntropyWithSelfNorm__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1MultiClassCrossEntropyWithSelfNorm_1a9d7555de4693127ef28025160d9ff703"></span><code class="descname">MultiClassCrossEntropyWithSelfNorm</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle34MultiClassCrossEntropyWithSelfNorm34MultiClassCrossEntropyWithSelfNormERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle34MultiClassCrossEntropyWithSelfNorm4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::MultiClassCrossEntropyWithSelfNorm::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1MultiClassCrossEntropyWithSelfNorm_1a7b92658ddd2a569145841baea6a1e998"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle34MultiClassCrossEntropyWithSelfNorm4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle34MultiClassCrossEntropyWithSelfNorm10forwardImpER6MatrixR8ArgumentR6Matrix">
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<span id="paddle::MultiClassCrossEntropyWithSelfNorm::forwardImp__MatrixR.ArgumentR.MatrixR"></span><span class="target" id="paddleclasspaddle_1_1MultiClassCrossEntropyWithSelfNorm_1a6f2ebdc46af5f52d916e2b10ff226338"></span>void <code class="descname">forwardImp</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>output</em>, <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>label</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>cost</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle34MultiClassCrossEntropyWithSelfNorm10forwardImpER6MatrixR8ArgumentR6Matrix" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle34MultiClassCrossEntropyWithSelfNorm11backwardImpER6MatrixR8ArgumentR6Matrix">
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<span id="paddle::MultiClassCrossEntropyWithSelfNorm::backwardImp__MatrixR.ArgumentR.MatrixR"></span><span class="target" id="paddleclasspaddle_1_1MultiClassCrossEntropyWithSelfNorm_1afc51f25d98ad70d278398788690d75e2"></span>void <code class="descname">backwardImp</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>outputValue</em>, <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>label</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>outputGrad</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle34MultiClassCrossEntropyWithSelfNorm11backwardImpER6MatrixR8ArgumentR6Matrix" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle34MultiClassCrossEntropyWithSelfNorm10sftMaxSum_E">
<span id="paddle::MultiClassCrossEntropyWithSelfNorm::sftMaxSum___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1MultiClassCrossEntropyWithSelfNorm_1ae63a61bc46c53a25dd06534e81111eec"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">sftMaxSum_</code><a class="headerlink" href="#_CPPv2N6paddle34MultiClassCrossEntropyWithSelfNorm10sftMaxSum_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle34MultiClassCrossEntropyWithSelfNorm7sumInv_E">
<span id="paddle::MultiClassCrossEntropyWithSelfNorm::sumInv___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1MultiClassCrossEntropyWithSelfNorm_1a1dacb22d4ddbd8c9b12383da429f90e7"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">sumInv_</code><a class="headerlink" href="#_CPPv2N6paddle34MultiClassCrossEntropyWithSelfNorm7sumInv_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="rankingcost">
<h3>RankingCost<a class="headerlink" href="#rankingcost" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="_CPPv2N6paddle11RankingCostE">
<span id="paddle::RankingCost"></span><span class="target" id="paddleclasspaddle_1_1RankingCost"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">RankingCost</code><a class="headerlink" href="#_CPPv2N6paddle11RankingCostE" title="Permalink to this definition">¶</a></dt>
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<dd><p>A cost layer for learning to rank (LTR) task. This layer contains at leat three inputs. <div class="math">
\[\begin{split} C_{i,j} = -\tilde{P_{ij}} * o_{i,j} + log(1 + e^{o_{i,j}}) \\ o_{i,j} = o_i - o_j \\ \tilde{P_{i,j}} = \left \{0, 0.5, 1 \right \} \ or \ \left \{0, 1 \right \} \end{split}\]</div>
</p>
<p>[1]. Chris Burges, Tal Shaked, Erin Renshaw, et al. Learning to Rank useing Gradient Descent. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle11RankingCost11RankingCostERK11LayerConfig">
<span id="paddle::RankingCost::RankingCost__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1RankingCost_1a7b81fc5d99ae6284a66ac38df264058b"></span><code class="descname">RankingCost</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11RankingCost11RankingCostERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11RankingCost4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::RankingCost::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1RankingCost_1a4e3a7f5d4c493e667bd11fa92ea213e3"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11RankingCost4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11RankingCost14getOutputLayerE6size_t">
<span id="paddle::RankingCost::getOutputLayer__s"></span><span class="target" id="paddleclasspaddle_1_1RankingCost_1a811295fc43bbaf7fdb7401eab371f542"></span>LayerPtr <code class="descname">getOutputLayer</code><span class="sig-paren">(</span>size_t <em>i</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11RankingCost14getOutputLayerE6size_t" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11RankingCost13getLabelLayerEv">
<span id="paddle::RankingCost::getLabelLayer"></span><span class="target" id="paddleclasspaddle_1_1RankingCost_1af0f0a5b17199ab4aa59402b3dd37a6e8"></span>LayerPtr <code class="descname">getLabelLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11RankingCost13getLabelLayerEv" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11RankingCost7forwardE8PassType">
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<span id="paddle::RankingCost::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1RankingCost_1a5f9f68064701815af6d093f3646d9623"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11RankingCost7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11RankingCost8backwardERK14UpdateCallback">
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<span id="paddle::RankingCost::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1RankingCost_1a8d0ab1b2af639667a8921e5f9b5819fa"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11RankingCost8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11RankingCost9onPassEndEv">
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<span id="paddle::RankingCost::onPassEnd"></span><span class="target" id="paddleclasspaddle_1_1RankingCost_1aea968b55f5b773a9fc7962ca9b505abe"></span>void <code class="descname">onPassEnd</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11RankingCost9onPassEndEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>One pass is finished. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11RankingCost10forwardImpER6MatrixR8ArgumentR6Matrix">
<span id="paddle::RankingCost::forwardImp__MatrixR.ArgumentR.MatrixR"></span><span class="target" id="paddleclasspaddle_1_1RankingCost_1a0cb10b1ca4c9c0c74a0a43c2267121a7"></span>void <code class="descname">forwardImp</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>output</em>, <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>label</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>cost</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11RankingCost10forwardImpER6MatrixR8ArgumentR6Matrix" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11RankingCost11backwardImpER6MatrixR8ArgumentR6Matrix">
<span id="paddle::RankingCost::backwardImp__MatrixR.ArgumentR.MatrixR"></span><span class="target" id="paddleclasspaddle_1_1RankingCost_1a08c342ec0dbad143bb1d3c224489e0f4"></span>void <code class="descname">backwardImp</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>outputValue</em>, <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>label</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>outputGrad</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11RankingCost11backwardImpER6MatrixR8ArgumentR6Matrix" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="softbinaryclasscrossentropy">
<h3>SoftBinaryClassCrossEntropy<a class="headerlink" href="#softbinaryclasscrossentropy" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="_CPPv2N6paddle27SoftBinaryClassCrossEntropyE">
<span id="paddle::SoftBinaryClassCrossEntropy"></span><span class="target" id="paddleclasspaddle_1_1SoftBinaryClassCrossEntropy"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">SoftBinaryClassCrossEntropy</code><a class="headerlink" href="#_CPPv2N6paddle27SoftBinaryClassCrossEntropyE" title="Permalink to this definition">¶</a></dt>
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<dd><p>The cross-entropy for soft binary class. <div class="math">
\[ L = \sum_i (\sum_j -y_j(i)*log(x_j(i))-(1-y_j(i))*log(1-x_j(i))) \]</div>
 </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1CostLayer"><span class="std std-ref">paddle::CostLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle27SoftBinaryClassCrossEntropy27SoftBinaryClassCrossEntropyERK11LayerConfig">
<span id="paddle::SoftBinaryClassCrossEntropy::SoftBinaryClassCrossEntropy__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1SoftBinaryClassCrossEntropy_1a72aced9c96b7291437e9dcfdb607f84a"></span><code class="descname">SoftBinaryClassCrossEntropy</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle27SoftBinaryClassCrossEntropy27SoftBinaryClassCrossEntropyERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle27SoftBinaryClassCrossEntropy4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::SoftBinaryClassCrossEntropy::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1SoftBinaryClassCrossEntropy_1af01df3b068f24bce65d2177698b9d6a1"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle27SoftBinaryClassCrossEntropy4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle27SoftBinaryClassCrossEntropy10forwardImpER6MatrixR8ArgumentR6Matrix">
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<span id="paddle::SoftBinaryClassCrossEntropy::forwardImp__MatrixR.ArgumentR.MatrixR"></span><span class="target" id="paddleclasspaddle_1_1SoftBinaryClassCrossEntropy_1abf462dacf92a74a55f631d8b96f7d131"></span>void <code class="descname">forwardImp</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>output</em>, <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>label</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>cost</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle27SoftBinaryClassCrossEntropy10forwardImpER6MatrixR8ArgumentR6Matrix" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle27SoftBinaryClassCrossEntropy11backwardImpER6MatrixR8ArgumentR6Matrix">
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<span id="paddle::SoftBinaryClassCrossEntropy::backwardImp__MatrixR.ArgumentR.MatrixR"></span><span class="target" id="paddleclasspaddle_1_1SoftBinaryClassCrossEntropy_1a961dd1d5268fdd58aa3747519a548160"></span>void <code class="descname">backwardImp</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>outputValue</em>, <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>label</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>outputGrad</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle27SoftBinaryClassCrossEntropy11backwardImpER6MatrixR8ArgumentR6Matrix" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle27SoftBinaryClassCrossEntropy13targetPerDim_E">
<span id="paddle::SoftBinaryClassCrossEntropy::targetPerDim___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1SoftBinaryClassCrossEntropy_1a05d14b088672538d2b3bc770a29ce247"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">targetPerDim_</code><a class="headerlink" href="#_CPPv2N6paddle27SoftBinaryClassCrossEntropy13targetPerDim_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="sumofsquarescostlayer">
<h3>SumOfSquaresCostLayer<a class="headerlink" href="#sumofsquarescostlayer" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="_CPPv2N6paddle21SumOfSquaresCostLayerE">
<span id="paddle::SumOfSquaresCostLayer"></span><span class="target" id="paddleclasspaddle_1_1SumOfSquaresCostLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">SumOfSquaresCostLayer</code><a class="headerlink" href="#_CPPv2N6paddle21SumOfSquaresCostLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>This cost layer compute Euclidean (L2) loss for real-valued regression tasks. <div class="math">
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\[ L = \sum_{i=1}^N {|| \hat{y}_i - y_i||_2^2} \]</div>
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 </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1CostLayer"><span class="std std-ref">paddle::CostLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle21SumOfSquaresCostLayer21SumOfSquaresCostLayerERK11LayerConfig">
<span id="paddle::SumOfSquaresCostLayer::SumOfSquaresCostLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1SumOfSquaresCostLayer_1a4974ce60286aae18b918eb7e8013c93d"></span><code class="descname">SumOfSquaresCostLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle21SumOfSquaresCostLayer21SumOfSquaresCostLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle21SumOfSquaresCostLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::SumOfSquaresCostLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1SumOfSquaresCostLayer_1a01fd9051ac0797704e9c7f0ae12a229b"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle21SumOfSquaresCostLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle21SumOfSquaresCostLayer10forwardImpER6MatrixR8ArgumentR6Matrix">
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<span id="paddle::SumOfSquaresCostLayer::forwardImp__MatrixR.ArgumentR.MatrixR"></span><span class="target" id="paddleclasspaddle_1_1SumOfSquaresCostLayer_1a7b1f0a2fe35b14de1f614a0346878724"></span>void <code class="descname">forwardImp</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>output</em>, <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>label</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>cost</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle21SumOfSquaresCostLayer10forwardImpER6MatrixR8ArgumentR6Matrix" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle21SumOfSquaresCostLayer11backwardImpER6MatrixR8ArgumentR6Matrix">
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<span id="paddle::SumOfSquaresCostLayer::backwardImp__MatrixR.ArgumentR.MatrixR"></span><span class="target" id="paddleclasspaddle_1_1SumOfSquaresCostLayer_1a3b3febac979259d6229b3db1b890ff22"></span>void <code class="descname">backwardImp</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>outputValue</em>, <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>label</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle6MatrixE" title="paddle::Matrix">Matrix</a> &amp;<em>outputGrad</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle21SumOfSquaresCostLayer11backwardImpER6MatrixR8ArgumentR6Matrix" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

</div>
</dd></dl>

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</div>
<div class="section" id="sumcostlayer">
<h3>SumCostLayer<a class="headerlink" href="#sumcostlayer" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="_CPPv2N6paddle12SumCostLayerE">
<span id="paddle::SumCostLayer"></span><span class="target" id="paddleclasspaddle_1_1SumCostLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">SumCostLayer</code><a class="headerlink" href="#_CPPv2N6paddle12SumCostLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>This cost layer compute the sum of its input as loss. <div class="math">
\[ o(i) = \sum_{j=1}^D y_{ij} \]</div>
 </p>
<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle12SumCostLayer12SumCostLayerERK11LayerConfig">
<span id="paddle::SumCostLayer::SumCostLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1SumCostLayer_1a2e8c01af3eb68218602d4c57e7f74ce8"></span><code class="descname">SumCostLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle12SumCostLayer12SumCostLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle12SumCostLayer4initERK8LayerMapRK12ParameterMap">
<span id="paddle::SumCostLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1SumCostLayer_1af052722073c3a6c22b89f66ae9eb7a32"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle12SumCostLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle12SumCostLayer7forwardE8PassType">
<span id="paddle::SumCostLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1SumCostLayer_1a4b03a061cf3ede0ace9a3d314717e006"></span><em class="property">virtual</em> void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle12SumCostLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle12SumCostLayer8backwardERK14UpdateCallback">
<span id="paddle::SumCostLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1SumCostLayer_1a80481d16acde623ba29afa74a8bdbc80"></span><em class="property">virtual</em> void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle12SumCostLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
</dd></dl>

</div>
</dd></dl>

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</div>
</div>
<div class="section" id="cossimlayer">
<h2>CosSimLayer<a class="headerlink" href="#cossimlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle11CosSimLayerE">
<span id="paddle::CosSimLayer"></span><span class="target" id="paddleclasspaddle_1_1CosSimLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">CosSimLayer</code><a class="headerlink" href="#_CPPv2N6paddle11CosSimLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>A layer for calculating cosine similarity between two vector <div class="math">
\[ f(x,y)=scale\frac{x_1y_1+x_2y_2+...+x_ny_n}{\sqrt{x_1^2+x_2^2+... +x_n^2}\sqrt{y_1^2+y_2^2+...+y_n^2}} \]</div>
. </p>
<p><ul class="simple">
<li>Input1: A vector (batchSize * dataDim) *</li>
<li>Input2: A vector (batchSize * dataDim) or (1 * dataDim) *</li>
<li>Output: A vector (dataDim * 1)</li>
</ul>
</p>
<p>The config file api is cos_sim. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle11CosSimLayer11CosSimLayerERK11LayerConfig">
<span id="paddle::CosSimLayer::CosSimLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1CosSimLayer_1abe62ee36afe97c72dd48e144f9cfff30"></span><code class="descname">CosSimLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11CosSimLayer11CosSimLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11CosSimLayerD0Ev">
<span id="paddle::CosSimLayer::~CosSimLayer"></span><span class="target" id="paddleclasspaddle_1_1CosSimLayer_1a022c6cd5763eb91a3a2041cee66b977a"></span><code class="descname">~CosSimLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11CosSimLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11CosSimLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::CosSimLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1CosSimLayer_1ab85e9e4671f62e3808a467b1f78323eb"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11CosSimLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11CosSimLayer7forwardE8PassType">
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<span id="paddle::CosSimLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1CosSimLayer_1ae95389edc5d51e9ff61976b42f86a1cb"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11CosSimLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle11CosSimLayer8backwardERK14UpdateCallback">
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<span id="paddle::CosSimLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1CosSimLayer_1a757cf8875e53fae7cb96b6b745038105"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle11CosSimLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="cossimvecmatlayer">
<h2>CosSimVecMatLayer<a class="headerlink" href="#cossimvecmatlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle17CosSimVecMatLayerE">
<span id="paddle::CosSimVecMatLayer"></span><span class="target" id="paddleclasspaddle_1_1CosSimVecMatLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">CosSimVecMatLayer</code><a class="headerlink" href="#_CPPv2N6paddle17CosSimVecMatLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>A layer for computing cosine similarity between a vector and each row of a matrix out[i] = cos_scale * cos(in1, in2(i,:));. </p>
<p>
Input1: a vector (batchSize * dataDim)<dl class="docutils">
<dt><strong>Note</strong></dt>
<dd>used in NEURAL TURING MACHINE</dd>
</dl>
</p>
<p>Input2: a matrix in vector form (batchSize * (weightDim*dataDim))</p>
<p>Output: a vector (batchSize * weightDim) </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle17CosSimVecMatLayer17CosSimVecMatLayerERK11LayerConfig">
<span id="paddle::CosSimVecMatLayer::CosSimVecMatLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1CosSimVecMatLayer_1ae28ab037a907cbcc9a42412232595570"></span><code class="descname">CosSimVecMatLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17CosSimVecMatLayer17CosSimVecMatLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17CosSimVecMatLayerD0Ev">
<span id="paddle::CosSimVecMatLayer::~CosSimVecMatLayer"></span><span class="target" id="paddleclasspaddle_1_1CosSimVecMatLayer_1a6dad786eed95390963e77c4a90c70407"></span><code class="descname">~CosSimVecMatLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17CosSimVecMatLayerD0Ev" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17CosSimVecMatLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::CosSimVecMatLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1CosSimVecMatLayer_1a1633ca5419e3cceefbe93b95075f00af"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17CosSimVecMatLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17CosSimVecMatLayer7forwardE8PassType">
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<span id="paddle::CosSimVecMatLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1CosSimVecMatLayer_1aacc834697a218f5e80646947063d1103"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17CosSimVecMatLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle17CosSimVecMatLayer8backwardERK14UpdateCallback">
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<span id="paddle::CosSimVecMatLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1CosSimVecMatLayer_1aa70b648bf7cf218e22b36b2bdbce4eba"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle17CosSimVecMatLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle17CosSimVecMatLayer7tmpMtx0E">
<span id="paddle::CosSimVecMatLayer::tmpMtx0__MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1CosSimVecMatLayer_1a445f167e50b67e1d63cda46bb827b0e9"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">tmpMtx0</code><a class="headerlink" href="#_CPPv2N6paddle17CosSimVecMatLayer7tmpMtx0E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle17CosSimVecMatLayer7tmpMtx1E">
<span id="paddle::CosSimVecMatLayer::tmpMtx1__MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1CosSimVecMatLayer_1a6b769845247aa893ef2ded0e68bf1a4f"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">tmpMtx1</code><a class="headerlink" href="#_CPPv2N6paddle17CosSimVecMatLayer7tmpMtx1E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle17CosSimVecMatLayer7tmpRow0E">
<span id="paddle::CosSimVecMatLayer::tmpRow0__MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1CosSimVecMatLayer_1abbe19bedb2695cfe96a391989248fcdb"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">tmpRow0</code><a class="headerlink" href="#_CPPv2N6paddle17CosSimVecMatLayer7tmpRow0E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle17CosSimVecMatLayer7tmpRow1E">
<span id="paddle::CosSimVecMatLayer::tmpRow1__MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1CosSimVecMatLayer_1a7b72932cbe2f940299dac4dee25ba140"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">tmpRow1</code><a class="headerlink" href="#_CPPv2N6paddle17CosSimVecMatLayer7tmpRow1E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle17CosSimVecMatLayer7tmpRow2E">
<span id="paddle::CosSimVecMatLayer::tmpRow2__MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1CosSimVecMatLayer_1a4698a61e9a7df1014ba0526e77bac407"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">tmpRow2</code><a class="headerlink" href="#_CPPv2N6paddle17CosSimVecMatLayer7tmpRow2E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle17CosSimVecMatLayer7tmpRow3E">
<span id="paddle::CosSimVecMatLayer::tmpRow3__MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1CosSimVecMatLayer_1adb8edee2170affd0a49efc62bf0b7f23"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">tmpRow3</code><a class="headerlink" href="#_CPPv2N6paddle17CosSimVecMatLayer7tmpRow3E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="crfdecodinglayer">
<h2>CRFDecodingLayer<a class="headerlink" href="#crfdecodinglayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle16CRFDecodingLayerE">
<span id="paddle::CRFDecodingLayer"></span><span class="target" id="paddleclasspaddle_1_1CRFDecodingLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">CRFDecodingLayer</code><a class="headerlink" href="#_CPPv2N6paddle16CRFDecodingLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>A layer for calculating the decoding sequence of sequential conditional random field model. The decoding sequence is stored in output_.ids It also calculate error, output_.value[i] is 1 for incorrect decoding or 0 for correct decoding) See LinearChainCRF.h for the detail of the CRF formulation. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1CRFLayer"><span class="std std-ref">paddle::CRFLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle16CRFDecodingLayer16CRFDecodingLayerERK11LayerConfig">
<span id="paddle::CRFDecodingLayer::CRFDecodingLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1CRFDecodingLayer_1abc435bbaad94d6cdf2760dec35e46815"></span><code class="descname">CRFDecodingLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16CRFDecodingLayer16CRFDecodingLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle16CRFDecodingLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::CRFDecodingLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1CRFDecodingLayer_1a14dc22599fae5a3cbfe2400ef5f9ca16"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16CRFDecodingLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle16CRFDecodingLayer7forwardE8PassType">
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<span id="paddle::CRFDecodingLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1CRFDecodingLayer_1a90e482e007423b002468a30d3c8694d3"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16CRFDecodingLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle16CRFDecodingLayer8backwardERK14UpdateCallback">
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<span id="paddle::CRFDecodingLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1CRFDecodingLayer_1a9d1a6137c887e4a002b421eb52fca9b6"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16CRFDecodingLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle16CRFDecodingLayer4crf_E">
<span id="paddle::CRFDecodingLayer::crf___std::unique_ptr:LinearChainCRF:"></span><span class="target" id="paddleclasspaddle_1_1CRFDecodingLayer_1aabdfed7cc9ac1bfb7afcea72fc52d317"></span>std::unique_ptr&lt;<a class="reference internal" href="#_CPPv2N6paddle14LinearChainCRFE" title="paddle::LinearChainCRF">LinearChainCRF</a>&gt; <code class="descname">crf_</code><a class="headerlink" href="#_CPPv2N6paddle16CRFDecodingLayer4crf_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="crflayer">
<h2>CRFLayer<a class="headerlink" href="#crflayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle8CRFLayerE">
<span id="paddle::CRFLayer"></span><span class="target" id="paddleclasspaddle_1_1CRFLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">CRFLayer</code><a class="headerlink" href="#_CPPv2N6paddle8CRFLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>A layer for calculating the cost of sequential conditional random field model. See class <a class="reference internal" href="#paddleclasspaddle_1_1LinearChainCRF"><span class="std std-ref">LinearChainCRF</span></a> for the detail of the CRF formulation. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
<p>Subclassed by <a class="reference internal" href="#paddleclasspaddle_1_1CRFDecodingLayer"><span class="std std-ref">paddle::CRFDecodingLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle8CRFLayer8CRFLayerERK11LayerConfig">
<span id="paddle::CRFLayer::CRFLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1CRFLayer_1a2ab2d3f595bda295c2bc27bc25cdffb0"></span><code class="descname">CRFLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8CRFLayer8CRFLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8CRFLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::CRFLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1CRFLayer_1ac1bf8c82c334b0dfeb8c9c68e3119350"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8CRFLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8CRFLayer7forwardE8PassType">
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<span id="paddle::CRFLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1CRFLayer_1aaeb4fdf8b7fc85a2346a213ec8677d6f"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8CRFLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8CRFLayer8backwardERK14UpdateCallback">
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<span id="paddle::CRFLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1CRFLayer_1aec04ca1c95e3f6a325c95d504dd188ec"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8CRFLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle8CRFLayer11numClasses_E">
<span id="paddle::CRFLayer::numClasses___s"></span><span class="target" id="paddleclasspaddle_1_1CRFLayer_1a46948d5d0f45db7d3a104975e8bf1122"></span>size_t <code class="descname">numClasses_</code><a class="headerlink" href="#_CPPv2N6paddle8CRFLayer11numClasses_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle8CRFLayer10parameter_E">
<span id="paddle::CRFLayer::parameter___ParameterPtr"></span><span class="target" id="paddleclasspaddle_1_1CRFLayer_1a36c98113996e55b87b0385c244a561ee"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterPtrE" title="paddle::ParameterPtr">ParameterPtr</a> <code class="descname">parameter_</code><a class="headerlink" href="#_CPPv2N6paddle8CRFLayer10parameter_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle8CRFLayer5crfs_E">
<span id="paddle::CRFLayer::crfs___std::vector:LinearChainCRF:"></span><span class="target" id="paddleclasspaddle_1_1CRFLayer_1a2b2397ee324a7ff6a6ed7338f6e8a3a6"></span>std::vector&lt;<a class="reference internal" href="#_CPPv2N6paddle14LinearChainCRFE" title="paddle::LinearChainCRF">LinearChainCRF</a>&gt; <code class="descname">crfs_</code><a class="headerlink" href="#_CPPv2N6paddle8CRFLayer5crfs_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle8CRFLayer12weightLayer_E">
<span id="paddle::CRFLayer::weightLayer___LayerPtr"></span><span class="target" id="paddleclasspaddle_1_1CRFLayer_1aaeb038da54f58bbfcf2b84dd09c68ab9"></span>LayerPtr <code class="descname">weightLayer_</code><a class="headerlink" href="#_CPPv2N6paddle8CRFLayer12weightLayer_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle8CRFLayer6coeff_E">
<span id="paddle::CRFLayer::coeff___real"></span><span class="target" id="paddleclasspaddle_1_1CRFLayer_1af27685671d4f8397d8d5d234912c3cda"></span>real <code class="descname">coeff_</code><a class="headerlink" href="#_CPPv2N6paddle8CRFLayer6coeff_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="ctclayer">
<h2>CTCLayer<a class="headerlink" href="#ctclayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle8CTCLayerE">
<span id="paddle::CTCLayer"></span><span class="target" id="paddleclasspaddle_1_1CTCLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">CTCLayer</code><a class="headerlink" href="#_CPPv2N6paddle8CTCLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle8CTCLayer8CTCLayerERK11LayerConfig">
<span id="paddle::CTCLayer::CTCLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1CTCLayer_1a74fefc409308a07af914048f15c82e2b"></span><code class="descname">CTCLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8CTCLayer8CTCLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8CTCLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::CTCLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1CTCLayer_1aab66810edc8d379886ec070420c247ce"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8CTCLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8CTCLayer7forwardE8PassType">
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<span id="paddle::CTCLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1CTCLayer_1ad704585530fef3653ea213aa5343d671"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8CTCLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8CTCLayer10forwardImpERK8ArgumentRK8Argument">
<span id="paddle::CTCLayer::forwardImp__ArgumentCR.ArgumentCR"></span><span class="target" id="paddleclasspaddle_1_1CTCLayer_1aee67dc8ceb20bcf9fc899da49fdbbcb4"></span>void <code class="descname">forwardImp</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>softmaxSeqs</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>labelSeqs</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8CTCLayer10forwardImpERK8ArgumentRK8Argument" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8CTCLayer8backwardERK14UpdateCallback">
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<span id="paddle::CTCLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1CTCLayer_1a49c97ac69fd26d5505560fcffed8a756"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8CTCLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8CTCLayer11backwardImpERK14UpdateCallbackRK8ArgumentRK8Argument">
<span id="paddle::CTCLayer::backwardImp__UpdateCallbackCR.ArgumentCR.ArgumentCR"></span><span class="target" id="paddleclasspaddle_1_1CTCLayer_1ae3e707b1a9aefeeda6d3a2502b8852b5"></span>void <code class="descname">backwardImp</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>softmaxSeqs</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> &amp;<em>labelSeqs</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8CTCLayer11backwardImpERK14UpdateCallbackRK8ArgumentRK8Argument" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle8CTCLayer11numClasses_E">
<span id="paddle::CTCLayer::numClasses___s"></span><span class="target" id="paddleclasspaddle_1_1CTCLayer_1a3835c28d5182da3cc2d81ffee8b23b36"></span>size_t <code class="descname">numClasses_</code><a class="headerlink" href="#_CPPv2N6paddle8CTCLayer11numClasses_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle8CTCLayer12normByTimes_E">
<span id="paddle::CTCLayer::normByTimes___b"></span><span class="target" id="paddleclasspaddle_1_1CTCLayer_1ac2bae7786d8ee137e288d469b46c444c"></span>bool <code class="descname">normByTimes_</code><a class="headerlink" href="#_CPPv2N6paddle8CTCLayer12normByTimes_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle8CTCLayer5ctcs_E">
<span id="paddle::CTCLayer::ctcs___std::vector:LinearChainCTC:"></span><span class="target" id="paddleclasspaddle_1_1CTCLayer_1a5411226335df1567f1e553b5d2420a2d"></span>std::vector&lt;<a class="reference internal" href="#_CPPv2N6paddle14LinearChainCTCE" title="paddle::LinearChainCTC">LinearChainCTC</a>&gt; <code class="descname">ctcs_</code><a class="headerlink" href="#_CPPv2N6paddle8CTCLayer5ctcs_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle8CTCLayer12tmpCpuInput_E">
<span id="paddle::CTCLayer::tmpCpuInput___std::vector:Argument:"></span><span class="target" id="paddleclasspaddle_1_1CTCLayer_1a508f8b9e11e0b6d5158d7d80a42da2e1"></span>std::vector&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a>&gt; <code class="descname">tmpCpuInput_</code><a class="headerlink" href="#_CPPv2N6paddle8CTCLayer12tmpCpuInput_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="hierarchicalsigmoidlayer">
<h2>HierarchicalSigmoidLayer<a class="headerlink" href="#hierarchicalsigmoidlayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle24HierarchicalSigmoidLayerE">
<span id="paddle::HierarchicalSigmoidLayer"></span><span class="target" id="paddleclasspaddle_1_1HierarchicalSigmoidLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">HierarchicalSigmoidLayer</code><a class="headerlink" href="#_CPPv2N6paddle24HierarchicalSigmoidLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>Organize the classes into a binary tree. At each node, a sigmoid function is used to calculate the probability of belonging to the right branch. This idea is from &#8220;F. Morin, Y. Bengio (AISTATS 05): 
Hierarchical Probabilistic Neural Network Language Model.&#8221;</p>
<p>Here we uses a simple way of making the binary tree. Assuming the number of classes C = 6, The classes are organized as a binary tree in the following way:</p>
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<p><div class="highlight-default"><div class="highlight"><pre><span></span><span class="o">*-*-*-</span> <span class="mi">2</span>
<span class="o">|</span> <span class="o">|</span> <span class="o">|-</span> <span class="mi">3</span>
<span class="o">|</span> <span class="o">|</span>
<span class="o">|</span> <span class="o">|-*-</span> <span class="mi">4</span>
<span class="o">|</span>   <span class="o">|-</span> <span class="mi">5</span>
<span class="o">|</span>
<span class="o">|-*-</span> <span class="mi">0</span>
<span class="o">|-</span> <span class="mi">1</span>
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</pre></div>
</div>
</p>
<p>where * indicates an internal node, and each leaf node represents a class.<ul class="simple">
<li>Node 0 ... C-2 are internal nodes.</li>
<li>Node C-1 ... 2C-2 are leaf nodes.</li>
<li>Class c is represented by leaf node <span class="math">\(c+C-1\)</span>.</li>
</ul>
</p>
<p>We assign an id for each node:<ul class="simple">
<li>the id of root be 0.</li>
<li>the left child of a node i is 2*i+1.</li>
<li>the right child of a node i is 2*i+2.</li>
</ul>
</p>
<p>It&#8217;s easy to see that:<ul class="simple">
<li>the parent of node i is <span class="math">\(\left\lfloor(i-1)/2\right\rfloor\)</span>.</li>
<li>the j-th level ancestor of node i is <span class="math">\(\left\lfloor(i+1)/2^{j+1}\right\rfloor - 1\)</span>.</li>
<li>A node i is a left child of its parent if <span class="math">\((i-1)\%2==0\)</span>.</li>
</ul>
</p>
<p>The config file api is hsigmod_layer. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle24HierarchicalSigmoidLayer24HierarchicalSigmoidLayerERK11LayerConfig">
<span id="paddle::HierarchicalSigmoidLayer::HierarchicalSigmoidLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1HierarchicalSigmoidLayer_1a6a5d9d65a98e3b0ebedba9754885b491"></span><code class="descname">HierarchicalSigmoidLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle24HierarchicalSigmoidLayer24HierarchicalSigmoidLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle24HierarchicalSigmoidLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::HierarchicalSigmoidLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1HierarchicalSigmoidLayer_1a9130492516a3ad086fadd2a94dfbaa40"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle24HierarchicalSigmoidLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle24HierarchicalSigmoidLayer7forwardE8PassType">
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<span id="paddle::HierarchicalSigmoidLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1HierarchicalSigmoidLayer_1abda913a9bff557ab31f4fc00da44fac2"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle24HierarchicalSigmoidLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle24HierarchicalSigmoidLayer8backwardERK14UpdateCallback">
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<span id="paddle::HierarchicalSigmoidLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1HierarchicalSigmoidLayer_1a5b3dfb0fc1b53b12abd43db2a4e0d4b4"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle24HierarchicalSigmoidLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle24HierarchicalSigmoidLayer13getLabelLayerEv">
<span id="paddle::HierarchicalSigmoidLayer::getLabelLayer"></span><span class="target" id="paddleclasspaddle_1_1HierarchicalSigmoidLayer_1a3d60d77d73ccfe5c19cd42aefc010eab"></span>LayerPtr <code class="descname">getLabelLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle24HierarchicalSigmoidLayer13getLabelLayerEv" title="Permalink to this definition">¶</a></dt>
<dd><p>The last of inputs is label layer. </p>
</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle24HierarchicalSigmoidLayer8weights_E">
<span id="paddle::HierarchicalSigmoidLayer::weights___WeightList"></span><span class="target" id="paddleclasspaddle_1_1HierarchicalSigmoidLayer_1a35b5158733eb16df5017aabc5f03932a"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle10WeightListE" title="paddle::WeightList">WeightList</a> <code class="descname">weights_</code><a class="headerlink" href="#_CPPv2N6paddle24HierarchicalSigmoidLayer8weights_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle24HierarchicalSigmoidLayer7biases_E">
<span id="paddle::HierarchicalSigmoidLayer::biases___std::unique_ptr:Weight:"></span><span class="target" id="paddleclasspaddle_1_1HierarchicalSigmoidLayer_1a5cfb8239bf39a35de69ac0b8f2f4b0a1"></span>std::unique_ptr&lt;<a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle6WeightE" title="paddle::Weight">Weight</a>&gt; <code class="descname">biases_</code><a class="headerlink" href="#_CPPv2N6paddle24HierarchicalSigmoidLayer7biases_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle24HierarchicalSigmoidLayer11numClasses_E">
<span id="paddle::HierarchicalSigmoidLayer::numClasses___s"></span><span class="target" id="paddleclasspaddle_1_1HierarchicalSigmoidLayer_1ac4c3a9c3ab6dbbf2bd33bcffab52559f"></span>size_t <code class="descname">numClasses_</code><a class="headerlink" href="#_CPPv2N6paddle24HierarchicalSigmoidLayer11numClasses_E" title="Permalink to this definition">¶</a></dt>
<dd><p>number of classes </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle24HierarchicalSigmoidLayer11codeLength_E">
<span id="paddle::HierarchicalSigmoidLayer::codeLength___i"></span><span class="target" id="paddleclasspaddle_1_1HierarchicalSigmoidLayer_1adfb96e000ddf17b1f28a7710ee30d8ae"></span>int <code class="descname">codeLength_</code><a class="headerlink" href="#_CPPv2N6paddle24HierarchicalSigmoidLayer11codeLength_E" title="Permalink to this definition">¶</a></dt>
<dd><p>codeLength_ = <span class="math">\(1 + \left\lfloor log_{2}(numClasses-1)\right\rfloor\)</span> </p>
</dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle24HierarchicalSigmoidLayer10preOutput_E">
<span id="paddle::HierarchicalSigmoidLayer::preOutput___Argument"></span><span class="target" id="paddleclasspaddle_1_1HierarchicalSigmoidLayer_1a2e244c2c9b658eedfaae0bcc62f4f15c"></span><a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle8ArgumentE" title="paddle::Argument">Argument</a> <code class="descname">preOutput_</code><a class="headerlink" href="#_CPPv2N6paddle24HierarchicalSigmoidLayer10preOutput_E" title="Permalink to this definition">¶</a></dt>
<dd><p>temporary result of output_ </p>
</dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="linearchaincrf">
<h2>LinearChainCRF<a class="headerlink" href="#linearchaincrf" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle14LinearChainCRFE">
<span id="paddle::LinearChainCRF"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCRF"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">LinearChainCRF</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCRFE" title="Permalink to this definition">¶</a></dt>
<dd><div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle14LinearChainCRF14LinearChainCRFEiP4realP4real">
<span id="paddle::LinearChainCRF::LinearChainCRF__i.realP.realP"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCRF_1a091bf516302972b9259d77bcb3667783"></span><code class="descname">LinearChainCRF</code><span class="sig-paren">(</span>int <em>numClasses</em>, real *<em>para</em>, real *<em>grad</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCRF14LinearChainCRFEiP4realP4real" title="Permalink to this definition">¶</a></dt>
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<dd><p>The size of para and grad must be <span class="math">\((numClasses + 2) * numClasses\)</span>. The first numClasses values of para are for starting weights ( <span class="math">\(a\)</span>). The next numClasses values of para are for ending weights ( <span class="math">\(b\)</span>), The remaning values are for transition weights ( <span class="math">\(w\)</span>).</p>
<p>The probability of a state sequence s of length <span class="math">\(L\)</span> is defined as: <span class="math">\(P(s) = (1/Z) exp(a_{s_1} + b_{s_L} + \sum_{l=1}^L x_{s_l} + \sum_{l=2}^L w_{s_{l-1},s_l})\)</span> where <span class="math">\(Z\)</span> is a normalization value so that the sum of <span class="math">\(P(s)\)</span> over all possible sequences is <span class="math">\(1\)</span>, and <span class="math">\(x\)</span> is the input feature to the CRF. </p>
</dd></dl>
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<dl class="function">
<dt id="_CPPv2N6paddle14LinearChainCRF7forwardEP4realPii">
<span id="paddle::LinearChainCRF::forward__realP.iP.i"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCRF_1a1273df7f4b9bceb6eda9a5cf84825af3"></span>real <code class="descname">forward</code><span class="sig-paren">(</span>real *<em>x</em>, int *<em>s</em>, int <em>length</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCRF7forwardEP4realPii" title="Permalink to this definition">¶</a></dt>
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<dd><p>Calculate the negative log likelihood of s given x. The size of x must be length * numClasses. Each consecutive numClasses values are the features for one time step. </p>
</dd></dl>
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<dl class="function">
<dt id="_CPPv2N6paddle14LinearChainCRF8backwardEP4realP4realPii">
<span id="paddle::LinearChainCRF::backward__realP.realP.iP.i"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCRF_1a64da4f29ca7f1bbc47e754ce76dd54db"></span>void <code class="descname">backward</code><span class="sig-paren">(</span>real *<em>x</em>, real *<em>dx</em>, int *<em>s</em>, int <em>length</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCRF8backwardEP4realP4realPii" title="Permalink to this definition">¶</a></dt>
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<dd><p>Calculate the gradient with respect to x, a, b, and w. The gradient of x will be stored in dx. <a class="reference internal" href="#paddleclasspaddle_1_1LinearChainCRF_1a64da4f29ca7f1bbc47e754ce76dd54db"><span class="std std-ref">backward()</span></a> can only be called after a corresponding call to <a class="reference internal" href="#paddleclasspaddle_1_1LinearChainCRF_1a1273df7f4b9bceb6eda9a5cf84825af3"><span class="std std-ref">forward()</span></a> with the same x, s and length. <dl class="docutils">
<dt><strong>Note</strong></dt>
<dd>The gradient is added to dx and grad (provided at constructor). </dd>
</dl>
</p>
</dd></dl>
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<dl class="function">
<dt id="_CPPv2N6paddle14LinearChainCRF6decodeEP4realPii">
<span id="paddle::LinearChainCRF::decode__realP.iP.i"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCRF_1af1c5bb033d8709ae5e3e1ce36e367bd7"></span>void <code class="descname">decode</code><span class="sig-paren">(</span>real *<em>x</em>, int *<em>s</em>, int <em>length</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCRF6decodeEP4realPii" title="Permalink to this definition">¶</a></dt>
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<dd><p>Find the most probable sequence given x. The result will be stored in s. </p>
</dd></dl>
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</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle14LinearChainCRF11numClasses_E">
<span id="paddle::LinearChainCRF::numClasses___i"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCRF_1afffe7119475ca21c2cc299057540e876"></span>int <code class="descname">numClasses_</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCRF11numClasses_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14LinearChainCRF2a_E">
<span id="paddle::LinearChainCRF::a___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCRF_1a9a84c929c29ceb6015ca85e65fe05fd2"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">a_</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCRF2a_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14LinearChainCRF2b_E">
<span id="paddle::LinearChainCRF::b___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCRF_1ae3b48bac20edba9a34415a67c56d2895"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">b_</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCRF2b_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14LinearChainCRF2w_E">
<span id="paddle::LinearChainCRF::w___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCRF_1aa76c63f5c57200c8538f17a112e840f9"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">w_</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCRF2w_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14LinearChainCRF3da_E">
<span id="paddle::LinearChainCRF::da___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCRF_1a8f98769ae060889c5ca9e51e22490904"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">da_</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCRF3da_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14LinearChainCRF3db_E">
<span id="paddle::LinearChainCRF::db___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCRF_1a5adb0f77bb7b87fa38ac2c2d9749ff6a"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">db_</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCRF3db_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14LinearChainCRF3dw_E">
<span id="paddle::LinearChainCRF::dw___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCRF_1a4bd62ca03fced933f9595a7fadcb0c17"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">dw_</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCRF3dw_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14LinearChainCRF5ones_E">
<span id="paddle::LinearChainCRF::ones___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCRF_1adee6ca802e5a435d6bc33ca447a4fb0f"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">ones_</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCRF5ones_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14LinearChainCRF5expX_E">
<span id="paddle::LinearChainCRF::expX___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCRF_1a46fa104de51dc40ca84def97fc4f8229"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">expX_</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCRF5expX_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14LinearChainCRF6alpha_E">
<span id="paddle::LinearChainCRF::alpha___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCRF_1a4d09d9dcfcf9f104e1c91094f92508a8"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">alpha_</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCRF6alpha_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14LinearChainCRF5beta_E">
<span id="paddle::LinearChainCRF::beta___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCRF_1a80d4b4cf1604eb5511cd7b39cc9fb2d2"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">beta_</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCRF5beta_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14LinearChainCRF5maxX_E">
<span id="paddle::LinearChainCRF::maxX___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCRF_1a34d2ad8e8abe522b64b414621027267c"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">maxX_</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCRF5maxX_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14LinearChainCRF5expW_E">
<span id="paddle::LinearChainCRF::expW___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCRF_1a81f000163a043a61e661fbb5a44c12c6"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">expW_</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCRF5expW_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14LinearChainCRF6track_E">
<span id="paddle::LinearChainCRF::track___IVectorPtr"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCRF_1aadab94e0a9fcf5e10fe5f030cacb1874"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle10IVectorPtrE" title="paddle::IVectorPtr">IVectorPtr</a> <code class="descname">track_</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCRF6track_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="linearchainctc">
<h2>LinearChainCTC<a class="headerlink" href="#linearchainctc" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle14LinearChainCTCE">
<span id="paddle::LinearChainCTC"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCTC"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">LinearChainCTC</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCTCE" title="Permalink to this definition">¶</a></dt>
<dd><div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle14LinearChainCTC14LinearChainCTCEib">
<span id="paddle::LinearChainCTC::LinearChainCTC__i.b"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCTC_1a01ccd793a4467382c2e63972749a0fec"></span><code class="descname">LinearChainCTC</code><span class="sig-paren">(</span>int <em>numClasses</em>, bool <em>normByTimes</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCTC14LinearChainCTCEib" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14LinearChainCTC7forwardEP4realiPii">
<span id="paddle::LinearChainCTC::forward__realP.i.iP.i"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCTC_1a57d436a5b882b52094713be4050eaf5d"></span>real <code class="descname">forward</code><span class="sig-paren">(</span>real *<em>softmaxSeq</em>, int <em>softmaxSeqLen</em>, int *<em>labelSeq</em>, int <em>labelSeqLen</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCTC7forwardEP4realiPii" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle14LinearChainCTC8backwardEP4realP4realPii">
<span id="paddle::LinearChainCTC::backward__realP.realP.iP.i"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCTC_1a24a6a95176a7965814a8db3adafb128d"></span>void <code class="descname">backward</code><span class="sig-paren">(</span>real *<em>softmaxSeq</em>, real *<em>softmaxSeqGrad</em>, int *<em>labelSeq</em>, int <em>labelSeqLen</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCTC8backwardEP4realP4realPii" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle14LinearChainCTC12segmentRangeERiRii">
<span id="paddle::LinearChainCTC::segmentRange__iR.iR.i"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCTC_1a346328d7ce9057f8cf20e92ee4013f57"></span>void <code class="descname">segmentRange</code><span class="sig-paren">(</span>int &amp;<em>start</em>, int &amp;<em>end</em>, int <em>time</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCTC12segmentRangeERiRii" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Protected Attributes</p>
<dl class="member">
<dt id="_CPPv2N6paddle14LinearChainCTC11numClasses_E">
<span id="paddle::LinearChainCTC::numClasses___i"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCTC_1a12a1b6733e10445ee7d498fe2ac7391b"></span>int <code class="descname">numClasses_</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCTC11numClasses_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14LinearChainCTC6blank_E">
<span id="paddle::LinearChainCTC::blank___i"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCTC_1a188b44c342c6bdb989cfed4a906859b7"></span>int <code class="descname">blank_</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCTC6blank_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14LinearChainCTC14totalSegments_E">
<span id="paddle::LinearChainCTC::totalSegments___i"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCTC_1ae24df8a89d2e1529d3eb025bd92ffeb4"></span>int <code class="descname">totalSegments_</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCTC14totalSegments_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14LinearChainCTC10totalTime_E">
<span id="paddle::LinearChainCTC::totalTime___i"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCTC_1a27b32818456d4fa8d9474027179c7fdb"></span>int <code class="descname">totalTime_</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCTC10totalTime_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14LinearChainCTC12normByTimes_E">
<span id="paddle::LinearChainCTC::normByTimes___b"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCTC_1afcb88de7fa4c3e68396807ddc81aa917"></span>bool <code class="descname">normByTimes_</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCTC12normByTimes_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14LinearChainCTC10isInvalid_E">
<span id="paddle::LinearChainCTC::isInvalid___b"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCTC_1ad83b9b1fb7e080a90aebef01fbc14b46"></span>bool <code class="descname">isInvalid_</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCTC10isInvalid_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14LinearChainCTC8logActs_E">
<span id="paddle::LinearChainCTC::logActs___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCTC_1acf9fbd1dbb1798d0830a90d2e9ff9474"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">logActs_</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCTC8logActs_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14LinearChainCTC12forwardVars_E">
<span id="paddle::LinearChainCTC::forwardVars___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCTC_1aa1102cfd482f4247d44b42f510786e24"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">forwardVars_</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCTC12forwardVars_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14LinearChainCTC13backwardVars_E">
<span id="paddle::LinearChainCTC::backwardVars___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCTC_1a27b0181553e6519ae37be57b85201b3d"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">backwardVars_</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCTC13backwardVars_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14LinearChainCTC10gradTerms_E">
<span id="paddle::LinearChainCTC::gradTerms___MatrixPtr"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCTC_1a5c8a58279f2a7b51f9c411c9927e467c"></span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <code class="descname">gradTerms_</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCTC10gradTerms_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle14LinearChainCTC8logProb_E">
<span id="paddle::LinearChainCTC::logProb___real"></span><span class="target" id="paddleclasspaddle_1_1LinearChainCTC_1af46ca83de49e79ce5921a39b02be5b28"></span>real <code class="descname">logProb_</code><a class="headerlink" href="#_CPPv2N6paddle14LinearChainCTC8logProb_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
<div class="section" id="ncelayer">
<h2>NCELayer<a class="headerlink" href="#ncelayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle8NCELayerE">
<span id="paddle::NCELayer"></span><span class="target" id="paddleclasspaddle_1_1NCELayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">NCELayer</code><a class="headerlink" href="#_CPPv2N6paddle8NCELayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>Noise-contrastive estimation. Implements the method in the following paper: A fast and simple algorithm for training neural probabilistic language models.</p>
<p>The config file api is nce_layer. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle8NCELayer8NCELayerERK11LayerConfig">
<span id="paddle::NCELayer::NCELayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1NCELayer_1a55781bc0b031b513c332af6fe020f598"></span><code class="descname">NCELayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8NCELayer8NCELayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8NCELayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::NCELayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1NCELayer_1a6e6e482124dfe1c3a1cbf7e990d50981"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8NCELayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8NCELayer14prepareSamplesEv">
<span id="paddle::NCELayer::prepareSamples"></span><span class="target" id="paddleclasspaddle_1_1NCELayer_1af65dda7e3f3b3e1786859072b057daf9"></span>void <code class="descname">prepareSamples</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8NCELayer14prepareSamplesEv" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8NCELayer8prefetchEv">
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<span id="paddle::NCELayer::prefetch"></span><span class="target" id="paddleclasspaddle_1_1NCELayer_1ad6e9275101e24a20431f480cd7066b1f"></span>void <code class="descname">prefetch</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8NCELayer8prefetchEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>If use sparse row matrix as parameter, prefetch feature ids in input label. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8NCELayer7forwardE8PassType">
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<span id="paddle::NCELayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1NCELayer_1ad45bff983d4515def5fd1d4cbdc76a3f"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8NCELayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8NCELayer8backwardERK14UpdateCallback">
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<span id="paddle::NCELayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1NCELayer_1a0299a616dc5366e9f617cabe5185c0c0"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8NCELayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8NCELayer11forwardBiasEv">
<span id="paddle::NCELayer::forwardBias"></span><span class="target" id="paddleclasspaddle_1_1NCELayer_1a6965cbf8726f9b2ec3d6e6d7d3170276"></span>void <code class="descname">forwardBias</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8NCELayer11forwardBiasEv" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8NCELayer12backwardBiasERK14UpdateCallback">
<span id="paddle::NCELayer::backwardBias__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1NCELayer_1afbb2cb42e4fa019ce72c6651f33ddc3e"></span>void <code class="descname">backwardBias</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8NCELayer12backwardBiasERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8NCELayer15forwardOneInputEi">
<span id="paddle::NCELayer::forwardOneInput__i"></span><span class="target" id="paddleclasspaddle_1_1NCELayer_1ae234dd861b3b13e2b1582a8389121c8d"></span>void <code class="descname">forwardOneInput</code><span class="sig-paren">(</span>int <em>layerId</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8NCELayer15forwardOneInputEi" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8NCELayer16backwardOneInputEiRK14UpdateCallback">
<span id="paddle::NCELayer::backwardOneInput__i.UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1NCELayer_1a15923606caf578ded45cd0d02f4c8a63"></span>void <code class="descname">backwardOneInput</code><span class="sig-paren">(</span>int <em>layerId</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8NCELayer16backwardOneInputEiRK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8NCELayer11forwardCostEv">
<span id="paddle::NCELayer::forwardCost"></span><span class="target" id="paddleclasspaddle_1_1NCELayer_1a9b8b913621ec2eeade0b247fc557de19"></span>void <code class="descname">forwardCost</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8NCELayer11forwardCostEv" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle8NCELayer12backwardCostEv">
<span id="paddle::NCELayer::backwardCost"></span><span class="target" id="paddleclasspaddle_1_1NCELayer_1ac7f9bcd00dea1ce01e984281aae0a4d3"></span>void <code class="descname">backwardCost</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle8NCELayer12backwardCostEv" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</div>
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<div class="section" id="validation-layers">
<h2>Validation Layers<a class="headerlink" href="#validation-layers" title="Permalink to this headline">¶</a></h2>
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<div class="section" id="validationlayer">
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<h3>ValidationLayer<a class="headerlink" href="#validationlayer" title="Permalink to this headline">¶</a></h3>
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<dl class="class">
<dt id="_CPPv2N6paddle15ValidationLayerE">
<span id="paddle::ValidationLayer"></span><span class="target" id="paddleclasspaddle_1_1ValidationLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">ValidationLayer</code><a class="headerlink" href="#_CPPv2N6paddle15ValidationLayerE" title="Permalink to this definition">¶</a></dt>
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<dd><p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
<p>Subclassed by <a class="reference internal" href="#paddleclasspaddle_1_1AucValidation"><span class="std std-ref">paddle::AucValidation</span></a>, <a class="reference internal" href="#paddleclasspaddle_1_1PnpairValidation"><span class="std std-ref">paddle::PnpairValidation</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle15ValidationLayer15ValidationLayerERK11LayerConfig">
<span id="paddle::ValidationLayer::ValidationLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1ValidationLayer_1aedf307c0556e4afd0a28a43111fe3c9e"></span><code class="descname">ValidationLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15ValidationLayer15ValidationLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15ValidationLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::ValidationLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1ValidationLayer_1aa4c11d986c693c51c4d830795688de6c"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15ValidationLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15ValidationLayer14getOutputLayerEv">
<span id="paddle::ValidationLayer::getOutputLayer"></span><span class="target" id="paddleclasspaddle_1_1ValidationLayer_1ae78adbac2f398ee80073e7af4ad7d867"></span>LayerPtr <code class="descname">getOutputLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15ValidationLayer14getOutputLayerEv" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15ValidationLayer13getLabelLayerEv">
<span id="paddle::ValidationLayer::getLabelLayer"></span><span class="target" id="paddleclasspaddle_1_1ValidationLayer_1a7fdd92735bba6cf128dd79dd9b93717e"></span>LayerPtr <code class="descname">getLabelLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15ValidationLayer13getLabelLayerEv" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15ValidationLayer12getInfoLayerEv">
<span id="paddle::ValidationLayer::getInfoLayer"></span><span class="target" id="paddleclasspaddle_1_1ValidationLayer_1a019ed57b04d3672ea5a66e07158f7be4"></span>LayerPtr <code class="descname">getInfoLayer</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15ValidationLayer12getInfoLayerEv" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15ValidationLayer7forwardE8PassType">
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<span id="paddle::ValidationLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1ValidationLayer_1a525cd5c93fc409afa6ffc1790cf1ce02"></span>void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15ValidationLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15ValidationLayer8backwardERK14UpdateCallback">
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<span id="paddle::ValidationLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1ValidationLayer_1a69cbbf4de1075cdcf0a25276c2cc2a76"></span>void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em> = nullptr<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15ValidationLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15ValidationLayer13validationImpE9MatrixPtr10IVectorPtr">
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<span id="paddle::ValidationLayer::validationImp__MatrixPtr.IVectorPtr"></span><span class="target" id="paddleclasspaddle_1_1ValidationLayer_1adbb575f2ac7969ee0b5a1eb06a2a85fb"></span><em class="property">virtual</em> void <code class="descname">validationImp</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <em>outputValue</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle10IVectorPtrE" title="paddle::IVectorPtr">IVectorPtr</a> <em>label</em><span class="sig-paren">)</span> = 0<a class="headerlink" href="#_CPPv2N6paddle15ValidationLayer13validationImpE9MatrixPtr10IVectorPtr" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15ValidationLayer9onPassEndEv">
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<span id="paddle::ValidationLayer::onPassEnd"></span><span class="target" id="paddleclasspaddle_1_1ValidationLayer_1a2ebcb9d6396c441ce5f38b09ad169812"></span><em class="property">virtual</em> void <code class="descname">onPassEnd</code><span class="sig-paren">(</span><span class="sig-paren">)</span> = 0<a class="headerlink" href="#_CPPv2N6paddle15ValidationLayer9onPassEndEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>One pass is finished. </p>
</dd></dl>

</div>
</dd></dl>

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</div>
<div class="section" id="aucvalidation">
<h3>AucValidation<a class="headerlink" href="#aucvalidation" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="_CPPv2N6paddle13AucValidationE">
<span id="paddle::AucValidation"></span><span class="target" id="paddleclasspaddle_1_1AucValidation"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">AucValidation</code><a class="headerlink" href="#_CPPv2N6paddle13AucValidationE" title="Permalink to this definition">¶</a></dt>
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<dd><p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1ValidationLayer"><span class="std std-ref">paddle::ValidationLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle13AucValidation13AucValidationERK11LayerConfig">
<span id="paddle::AucValidation::AucValidation__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1AucValidation_1afc8ee436b2906dc3bec4950197a40e79"></span><code class="descname">AucValidation</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13AucValidation13AucValidationERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13AucValidation4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::AucValidation::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1AucValidation_1a8d1985b739e28ee3b4e3a905243fcf61"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13AucValidation4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13AucValidation13validationImpE9MatrixPtr10IVectorPtr">
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<span id="paddle::AucValidation::validationImp__MatrixPtr.IVectorPtr"></span><span class="target" id="paddleclasspaddle_1_1AucValidation_1a3b7ed03093fd82f7418fb36175709a56"></span>void <code class="descname">validationImp</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <em>outputValue</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle10IVectorPtrE" title="paddle::IVectorPtr">IVectorPtr</a> <em>label</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13AucValidation13validationImpE9MatrixPtr10IVectorPtr" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle13AucValidation9onPassEndEv">
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<span id="paddle::AucValidation::onPassEnd"></span><span class="target" id="paddleclasspaddle_1_1AucValidation_1ab5c33c98be49d4593618c7876d51fe97"></span>void <code class="descname">onPassEnd</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13AucValidation9onPassEndEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>One pass is finished. </p>
</dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Members</p>
<dl class="member">
<dt id="_CPPv2N6paddle13AucValidation13predictArray_E">
<span id="paddle::AucValidation::predictArray___std::vector:PredictionResult:"></span><span class="target" id="paddleclasspaddle_1_1AucValidation_1a34c92bca07cb73f2691b79bd7c938004"></span>std::vector&lt;<a class="reference internal" href="#_CPPv2N6paddle13AucValidation16PredictionResultE" title="paddle::AucValidation::PredictionResult">PredictionResult</a>&gt; <code class="descname">predictArray_</code><a class="headerlink" href="#_CPPv2N6paddle13AucValidation13predictArray_E" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
<dl class="class">
<dt id="_CPPv2N6paddle13AucValidation16PredictionResultE">
<span id="paddle::AucValidation::PredictionResult"></span><span class="target" id="paddlestructpaddle_1_1AucValidation_1_1PredictionResult"></span><em class="property">struct </em><code class="descname">PredictionResult</code><a class="headerlink" href="#_CPPv2N6paddle13AucValidation16PredictionResultE" title="Permalink to this definition">¶</a></dt>
<dd><div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle13AucValidation16PredictionResult16PredictionResultE4reali">
<span id="paddle::AucValidation::PredictionResult::PredictionResult__real.i"></span><span class="target" id="paddlestructpaddle_1_1AucValidation_1_1PredictionResult_1ae27289cfc875cf96c89ae25823281942"></span><code class="descname">PredictionResult</code><span class="sig-paren">(</span>real <em>__out</em>, int <em>__label</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle13AucValidation16PredictionResult16PredictionResultE4reali" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Members</p>
<dl class="member">
<dt id="_CPPv2N6paddle13AucValidation16PredictionResult3outE">
<span id="paddle::AucValidation::PredictionResult::out__real"></span><span class="target" id="paddlestructpaddle_1_1AucValidation_1_1PredictionResult_1a2f138da3c004dd5d647ec5efc2b913a4"></span>real <code class="descname">out</code><a class="headerlink" href="#_CPPv2N6paddle13AucValidation16PredictionResult3outE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="member">
<dt id="_CPPv2N6paddle13AucValidation16PredictionResult5labelE">
<span id="paddle::AucValidation::PredictionResult::label__i"></span><span class="target" id="paddlestructpaddle_1_1AucValidation_1_1PredictionResult_1af72ed4c24e02153e632fc20aca97c0e7"></span>int <code class="descname">label</code><a class="headerlink" href="#_CPPv2N6paddle13AucValidation16PredictionResult5labelE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</div>
</dd></dl>

</dd></dl>

</div>
<div class="section" id="pnpairvalidation">
<h3>PnpairValidation<a class="headerlink" href="#pnpairvalidation" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="_CPPv2N6paddle16PnpairValidationE">
<span id="paddle::PnpairValidation"></span><span class="target" id="paddleclasspaddle_1_1PnpairValidation"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">PnpairValidation</code><a class="headerlink" href="#_CPPv2N6paddle16PnpairValidationE" title="Permalink to this definition">¶</a></dt>
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<dd><p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1ValidationLayer"><span class="std std-ref">paddle::ValidationLayer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle16PnpairValidation16PnpairValidationERK11LayerConfig">
<span id="paddle::PnpairValidation::PnpairValidation__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1PnpairValidation_1a59e70ed9fcf8576cabf3c9567ed3ec4b"></span><code class="descname">PnpairValidation</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16PnpairValidation16PnpairValidationERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle16PnpairValidation4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::PnpairValidation::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1PnpairValidation_1a22a5060a3195cab77d10935bb947c23c"></span>bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16PnpairValidation4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle16PnpairValidation13validationImpE9MatrixPtr10IVectorPtr">
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<span id="paddle::PnpairValidation::validationImp__MatrixPtr.IVectorPtr"></span><span class="target" id="paddleclasspaddle_1_1PnpairValidation_1a5188effac9380869ce4fa4255201f2e0"></span>void <code class="descname">validationImp</code><span class="sig-paren">(</span><a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle9MatrixPtrE" title="paddle::MatrixPtr">MatrixPtr</a> <em>outputValue</em>, <a class="reference internal" href="../../math/matrix/matrix.html#_CPPv2N6paddle10IVectorPtrE" title="paddle::IVectorPtr">IVectorPtr</a> <em>label</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16PnpairValidation13validationImpE9MatrixPtr10IVectorPtr" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle16PnpairValidation9onPassEndEv">
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<span id="paddle::PnpairValidation::onPassEnd"></span><span class="target" id="paddleclasspaddle_1_1PnpairValidation_1ab31aac8c054509be90377232ffe1321e"></span>void <code class="descname">onPassEnd</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle16PnpairValidation9onPassEndEv" title="Permalink to this definition">¶</a></dt>
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<dd><p>One pass is finished. </p>
</dd></dl>

</div>
</dd></dl>

</div>
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</div>
</div>
<div class="section" id="check-layers">
<h1>Check Layers<a class="headerlink" href="#check-layers" title="Permalink to this headline">¶</a></h1>
<div class="section" id="eosidchecklayer">
<h2>EosIdCheckLayer<a class="headerlink" href="#eosidchecklayer" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="_CPPv2N6paddle15EosIdCheckLayerE">
<span id="paddle::EosIdCheckLayer"></span><span class="target" id="paddleclasspaddle_1_1EosIdCheckLayer"></span><em class="property">class </em><code class="descclassname">paddle::</code><code class="descname">EosIdCheckLayer</code><a class="headerlink" href="#_CPPv2N6paddle15EosIdCheckLayerE" title="Permalink to this definition">¶</a></dt>
<dd><p>A layer for checking EOS for each sample:<ul class="simple">
<li>output_id = (input_id == conf.eos_id)</li>
</ul>
</p>
<p>The result is stored in output_.ids. It is used by recurrent layer group. </p>
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<p>Inherits from <a class="reference internal" href="#paddleclasspaddle_1_1Layer"><span class="std std-ref">paddle::Layer</span></a></p>
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<div class="breathe-sectiondef container">
<p class="breathe-sectiondef-title rubric">Public Functions</p>
<dl class="function">
<dt id="_CPPv2N6paddle15EosIdCheckLayer15EosIdCheckLayerERK11LayerConfig">
<span id="paddle::EosIdCheckLayer::EosIdCheckLayer__LayerConfigCR"></span><span class="target" id="paddleclasspaddle_1_1EosIdCheckLayer_1ac90fa6d4d6cc152ac76109f6d5c9f84f"></span><code class="descname">EosIdCheckLayer</code><span class="sig-paren">(</span><em class="property">const</em> LayerConfig &amp;<em>config</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15EosIdCheckLayer15EosIdCheckLayerERK11LayerConfig" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15EosIdCheckLayer4initERK8LayerMapRK12ParameterMap">
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<span id="paddle::EosIdCheckLayer::init__LayerMapCR.ParameterMapCR"></span><span class="target" id="paddleclasspaddle_1_1EosIdCheckLayer_1a1a402b9dedcffaf22252d741190271fa"></span><em class="property">virtual</em> bool <code class="descname">init</code><span class="sig-paren">(</span><em class="property">const</em> LayerMap &amp;<em>layerMap</em>, <em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle12ParameterMapE" title="paddle::ParameterMap">ParameterMap</a> &amp;<em>parameterMap</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15EosIdCheckLayer4initERK8LayerMapRK12ParameterMap" title="Permalink to this definition">¶</a></dt>
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<dd><p>Intialization. For example, adding input layers from layerMap and parameterMap. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15EosIdCheckLayer7forwardE8PassType">
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<span id="paddle::EosIdCheckLayer::forward__PassType"></span><span class="target" id="paddleclasspaddle_1_1EosIdCheckLayer_1a72fdacc24a2061fcdb79a252a2498841"></span><em class="property">virtual</em> void <code class="descname">forward</code><span class="sig-paren">(</span>PassType <em>passType</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15EosIdCheckLayer7forwardE8PassType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Forward propagation. All inherited implementation should call Layer::foward() function. </p>
</dd></dl>

<dl class="function">
<dt id="_CPPv2N6paddle15EosIdCheckLayer8backwardERK14UpdateCallback">
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<span id="paddle::EosIdCheckLayer::backward__UpdateCallbackCR"></span><span class="target" id="paddleclasspaddle_1_1EosIdCheckLayer_1ae642cedbb53784916e0242ef0db8e1a7"></span><em class="property">virtual</em> void <code class="descname">backward</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="../../parameter/parameter/parameter.html#_CPPv2N6paddle14UpdateCallbackE" title="paddle::UpdateCallback">UpdateCallback</a> &amp;<em>callback</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv2N6paddle15EosIdCheckLayer8backwardERK14UpdateCallback" title="Permalink to this definition">¶</a></dt>
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<dd><p>Backward propagation. Should only be called after <a class="reference internal" href="#paddleclasspaddle_1_1Layer_1a12386b3f20dd731e7ceaa2c61667cbe1"><span class="std std-ref">Layer::forward()</span></a> function. </p>
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</dd></dl>

</div>
</dd></dl>

</div>
</div>


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  <h3><a href="../../../index.html">Table Of Contents</a></h3>
  <ul>
<li><a class="reference internal" href="#">Base</a><ul>
<li><a class="reference internal" href="#layer">Layer</a></li>
<li><a class="reference internal" href="#projection">Projection</a></li>
<li><a class="reference internal" href="#operator">Operator</a></li>
</ul>
</li>
<li><a class="reference internal" href="#data-layer">Data Layer</a></li>
<li><a class="reference internal" href="#fully-connected-layers">Fully Connected Layers</a><ul>
<li><a class="reference internal" href="#fullyconnectedlayer">FullyConnectedLayer</a></li>
<li><a class="reference internal" href="#selectivefullyconnectedlayer">SelectiveFullyConnectedLayer</a></li>
</ul>
</li>
<li><a class="reference internal" href="#conv-layers">Conv Layers</a><ul>
<li><a class="reference internal" href="#convbaselayer">ConvBaseLayer</a></li>
<li><a class="reference internal" href="#convoperator">ConvOperator</a></li>
<li><a class="reference internal" href="#convshiftlayer">ConvShiftLayer</a></li>
<li><a class="reference internal" href="#cudnnconvlayer">CudnnConvLayer</a></li>
<li><a class="reference internal" href="#expandconvlayer">ExpandConvLayer</a></li>
<li><a class="reference internal" href="#contextprojection">ContextProjection</a></li>
</ul>
</li>
<li><a class="reference internal" href="#pooling-layers">Pooling Layers</a><ul>
<li><a class="reference internal" href="#poollayer">PoolLayer</a></li>
<li><a class="reference internal" href="#poolprojectionlayer">PoolProjectionLayer</a></li>
<li><a class="reference internal" href="#cudnnpoollayer">CudnnPoolLayer</a></li>
</ul>
</li>
<li><a class="reference internal" href="#norm-layers">Norm Layers</a><ul>
<li><a class="reference internal" href="#normlayer">NormLayer</a></li>
<li><a class="reference internal" href="#cmrprojectionnormlayer">CMRProjectionNormLayer</a></li>
<li><a class="reference internal" href="#datanormlayer">DataNormLayer</a></li>
<li><a class="reference internal" href="#responsenormlayer">ResponseNormLayer</a></li>
<li><a class="reference internal" href="#batchnormbaselayer">BatchNormBaseLayer</a></li>
<li><a class="reference internal" href="#batchnormalizationlayer">BatchNormalizationLayer</a></li>
<li><a class="reference internal" href="#cudnnbatchnormlayer">CudnnBatchNormLayer</a></li>
<li><a class="reference internal" href="#sumtoonenormlayer">SumToOneNormLayer</a></li>
</ul>
</li>
<li><a class="reference internal" href="#activation-layer">Activation Layer</a><ul>
<li><a class="reference internal" href="#parameterrelulayer">ParameterReluLayer</a></li>
</ul>
</li>
<li><a class="reference internal" href="#recurrent-layers">Recurrent Layers</a><ul>
<li><a class="reference internal" href="#recurrentlayer">RecurrentLayer</a></li>
<li><a class="reference internal" href="#sequencetobatch">SequenceToBatch</a></li>
<li><a class="reference internal" href="#lstm">LSTM</a><ul>
<li><a class="reference internal" href="#lstmlayer">LstmLayer</a></li>
<li><a class="reference internal" href="#lstmsteplayer">LstmStepLayer</a></li>
<li><a class="reference internal" href="#lstmcompute">LstmCompute</a></li>
</ul>
</li>
<li><a class="reference internal" href="#mdlstm">MDLSTM</a><ul>
<li><a class="reference internal" href="#mdlstmlayer">MDLstmLayer</a></li>
<li><a class="reference internal" href="#coorditerator">CoordIterator</a></li>
</ul>
</li>
<li><a class="reference internal" href="#gru">GRU</a><ul>
<li><a class="reference internal" href="#gatedrecurrentlayer">GatedRecurrentLayer</a></li>
<li><a class="reference internal" href="#grusteplayer">GruStepLayer</a></li>
<li><a class="reference internal" href="#grucompute">GruCompute</a></li>
</ul>
</li>
</ul>
</li>
<li><a class="reference internal" href="#recurrent-layer-group">Recurrent Layer Group</a><ul>
<li><a class="reference internal" href="#agentlayer">AgentLayer</a></li>
<li><a class="reference internal" href="#sequenceagentlayer">SequenceAgentLayer</a></li>
<li><a class="reference internal" href="#gatheragentlayer">GatherAgentLayer</a></li>
<li><a class="reference internal" href="#sequencegatheragentlayer">SequenceGatherAgentLayer</a></li>
<li><a class="reference internal" href="#scatteragentlayer">ScatterAgentLayer</a></li>
<li><a class="reference internal" href="#sequencescatteragentlayer">SequenceScatterAgentLayer</a></li>
<li><a class="reference internal" href="#getoutputlayer">GetOutputLayer</a></li>
</ul>
</li>
<li><a class="reference internal" href="#mixed-layer">Mixed Layer</a><ul>
<li><a class="reference internal" href="#dotmulprojection">DotMulProjection</a></li>
<li><a class="reference internal" href="#dotmuloperator">DotMulOperator</a></li>
<li><a class="reference internal" href="#fullmatrixprojection">FullMatrixProjection</a></li>
<li><a class="reference internal" href="#identityprojection">IdentityProjection</a></li>
<li><a class="reference internal" href="#identityoffsetprojection">IdentityOffsetProjection</a></li>
<li><a class="reference internal" href="#tableprojection">TableProjection</a></li>
<li><a class="reference internal" href="#transposedfullmatrixprojection">TransposedFullMatrixProjection</a></li>
</ul>
</li>
<li><a class="reference internal" href="#aggregate-layers">Aggregate Layers</a><ul>
<li><a class="reference internal" href="#aggregate">Aggregate</a><ul>
<li><a class="reference internal" href="#averagelayer">AverageLayer</a></li>
<li><a class="reference internal" href="#maxlayer">MaxLayer</a></li>
<li><a class="reference internal" href="#sequencelastinstancelayer">SequenceLastInstanceLayer</a></li>
</ul>
</li>
<li><a class="reference internal" href="#concat">Concat</a><ul>
<li><a class="reference internal" href="#concatenatelayer">ConcatenateLayer</a></li>
<li><a class="reference internal" href="#concatenatelayer2">ConcatenateLayer2</a></li>
<li><a class="reference internal" href="#sequenceconcatlayer">SequenceConcatLayer</a></li>
</ul>
</li>
<li><a class="reference internal" href="#subset">Subset</a><ul>
<li><a class="reference internal" href="#subsequencelayer">SubSequenceLayer</a></li>
</ul>
</li>
</ul>
</li>
<li><a class="reference internal" href="#reshaping-layers">Reshaping Layers</a><ul>
<li><a class="reference internal" href="#blockexpandlayer">BlockExpandLayer</a></li>
<li><a class="reference internal" href="#expandlayer">ExpandLayer</a></li>
<li><a class="reference internal" href="#featuremapexpandlayer">FeatureMapExpandLayer</a></li>
<li><a class="reference internal" href="#resizelayer">ResizeLayer</a></li>
<li><a class="reference internal" href="#sequencereshapelayer">SequenceReshapeLayer</a></li>
</ul>
</li>
<li><a class="reference internal" href="#math-layers">Math Layers</a><ul>
<li><a class="reference internal" href="#addtolayer">AddtoLayer</a></li>
<li><a class="reference internal" href="#convexcombinationlayer">ConvexCombinationLayer</a></li>
<li><a class="reference internal" href="#interpolationlayer">InterpolationLayer</a></li>
<li><a class="reference internal" href="#multiplexlayer">MultiplexLayer</a></li>
<li><a class="reference internal" href="#outerprodlayer">OuterProdLayer</a></li>
<li><a class="reference internal" href="#powerlayer">PowerLayer</a></li>
<li><a class="reference internal" href="#scalinglayer">ScalingLayer</a></li>
<li><a class="reference internal" href="#slopeinterceptlayer">SlopeInterceptLayer</a></li>
<li><a class="reference internal" href="#tensorlayer">TensorLayer</a></li>
<li><a class="reference internal" href="#translayer">TransLayer</a></li>
</ul>
</li>
<li><a class="reference internal" href="#sampling-layers">Sampling Layers</a><ul>
<li><a class="reference internal" href="#multinomialsampler">MultinomialSampler</a></li>
<li><a class="reference internal" href="#maxidlayer">MaxIdLayer</a></li>
<li><a class="reference internal" href="#samplingidlayer">SamplingIdLayer</a></li>
</ul>
</li>
<li><a class="reference internal" href="#cost-layers">Cost Layers</a><ul>
<li><a class="reference internal" href="#costlayer">CostLayer</a><ul>
<li><a class="reference internal" href="#hubertwoclass">HuberTwoClass</a></li>
<li><a class="reference internal" href="#lambdacost">LambdaCost</a></li>
<li><a class="reference internal" href="#multibinarylabelcrossentropy">MultiBinaryLabelCrossEntropy</a></li>
<li><a class="reference internal" href="#multiclasscrossentropy">MultiClassCrossEntropy</a></li>
<li><a class="reference internal" href="#multiclasscrossentropywithselfnorm">MultiClassCrossEntropyWithSelfNorm</a></li>
<li><a class="reference internal" href="#rankingcost">RankingCost</a></li>
<li><a class="reference internal" href="#softbinaryclasscrossentropy">SoftBinaryClassCrossEntropy</a></li>
<li><a class="reference internal" href="#sumofsquarescostlayer">SumOfSquaresCostLayer</a></li>
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<li><a class="reference internal" href="#sumcostlayer">SumCostLayer</a></li>
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</ul>
</li>
<li><a class="reference internal" href="#cossimlayer">CosSimLayer</a></li>
<li><a class="reference internal" href="#cossimvecmatlayer">CosSimVecMatLayer</a></li>
<li><a class="reference internal" href="#crfdecodinglayer">CRFDecodingLayer</a></li>
<li><a class="reference internal" href="#crflayer">CRFLayer</a></li>
<li><a class="reference internal" href="#ctclayer">CTCLayer</a></li>
<li><a class="reference internal" href="#hierarchicalsigmoidlayer">HierarchicalSigmoidLayer</a></li>
<li><a class="reference internal" href="#linearchaincrf">LinearChainCRF</a></li>
<li><a class="reference internal" href="#linearchainctc">LinearChainCTC</a></li>
<li><a class="reference internal" href="#ncelayer">NCELayer</a></li>
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<li><a class="reference internal" href="#validation-layers">Validation Layers</a><ul>
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<li><a class="reference internal" href="#validationlayer">ValidationLayer</a></li>
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<li><a class="reference internal" href="#aucvalidation">AucValidation</a></li>
<li><a class="reference internal" href="#pnpairvalidation">PnpairValidation</a></li>
</ul>
</li>
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</ul>
</li>
<li><a class="reference internal" href="#check-layers">Check Layers</a><ul>
<li><a class="reference internal" href="#eosidchecklayer">EosIdCheckLayer</a></li>
</ul>
</li>
</ul>

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