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体验新版 GitCode,发现更多精彩内容 >>
提交
16b2c6dc
编写于
10月 15, 2018
作者:
Y
Yibing Liu
浏览文件
操作
浏览文件
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电子邮件补丁
差异文件
Add py api for sequence_slice_op
test=develop
上级
2c9839c8
变更
3
隐藏空白更改
内联
并排
Showing
3 changed file
with
82 addition
and
2 deletion
+82
-2
paddle/fluid/platform/profiler.cc
paddle/fluid/platform/profiler.cc
+2
-2
python/paddle/fluid/layers/nn.py
python/paddle/fluid/layers/nn.py
+67
-0
python/paddle/fluid/tests/unittests/test_layers.py
python/paddle/fluid/tests/unittests/test_layers.py
+13
-0
未找到文件。
paddle/fluid/platform/profiler.cc
浏览文件 @
16b2c6dc
...
...
@@ -370,8 +370,8 @@ void ParseEvents(const std::vector<std::vector<Event>>& events,
std
::
vector
<
std
::
vector
<
Event
>>
merged_events_list
;
if
(
merge_thread
)
{
std
::
vector
<
Event
>
merged_events
;
for
(
in
t
i
=
0
;
i
<
events
.
size
();
++
i
)
{
for
(
in
t
j
=
0
;
j
<
events
[
i
].
size
();
++
j
)
{
for
(
size_
t
i
=
0
;
i
<
events
.
size
();
++
i
)
{
for
(
size_
t
j
=
0
;
j
<
events
[
i
].
size
();
++
j
)
{
merged_events
.
push_back
(
events
[
i
][
j
]);
}
}
...
...
python/paddle/fluid/layers/nn.py
浏览文件 @
16b2c6dc
...
...
@@ -64,6 +64,7 @@ __all__ = [
'reduce_prod'
,
'sequence_first_step'
,
'sequence_last_step'
,
'sequence_slice'
,
'dropout'
,
'split'
,
'ctc_greedy_decoder'
,
...
...
@@ -1901,6 +1902,72 @@ def sequence_last_step(input):
return
sequence_pool
(
input
=
input
,
pool_type
=
"last"
)
def
sequence_slice
(
input
,
offset
,
length
,
name
=
None
):
"""
**Sequence Slice Layer**
The layer crops a subsequence from given sequence with given start
offset and subsequence length.
It only supports sequence data (LoDTensor with lod_level equal to 1).
.. code-block:: text
- Case:
Given the input Variable **input**,
input.data = [[a1, a2], [b1, b2], [c1, c2], [d1, d2], [e1, e2]],
input.lod = [[0, 3, 5]], input.dims = (5, 2)
with offset.data = [[0], [1]], length.data = [[2], [1]],
the output Variable will be
out.data = [[a1, a2], [b1, b2], [e1, e2]],
out.lod = [[0, 2, 3]], out.dims = (3, 2)
NOTE: The first dimension size of input, the size of offset and Length,
should be equal. The offset start from 0.
Args:
input(Variable): The input Variable which consists of the complete
sentences.
offset(Variable): The offset to slice each sequence.
length(Variable): The length of each subsequence.
name(str|None): A name for this layer(optional). If set None, the
layer will be named automatically.
Returns:
Variable: The subsequences.
Examples:
.. code-block:: python
import numpy as np
seqs = fluid.layers.data(name='x', shape=[10, 5],
dtype='float32', lod_level=1)
offset = fluid.layers.assign(input=np.array([[0, 1]]).astype("int32"))
length = fluid.layers.assign(input=np.array([[2, 1]]).astype("int32"))
subseqs = fluid.layers.sequence_slice(input=seqs, offset=offset,
length=length)
"""
helper
=
LayerHelper
(
"sequence_slice"
,
**
locals
())
dtype
=
helper
.
input_dtype
()
out
=
helper
.
create_tmp_variable
(
dtype
)
offset
.
stop_gradient
=
True
length
.
stop_gradient
=
True
helper
.
append_op
(
type
=
"sequence_slice"
,
inputs
=
{
"X"
:
input
,
"Offset"
:
offset
,
"Length"
:
length
},
outputs
=
{
"Out"
:
out
})
return
out
@
templatedoc
()
def
pool2d
(
input
,
pool_size
=-
1
,
...
...
python/paddle/fluid/tests/unittests/test_layers.py
浏览文件 @
16b2c6dc
...
...
@@ -406,6 +406,19 @@ class TestBook(unittest.TestCase):
self
.
assertIsNotNone
(
out
)
print
(
str
(
program
))
def
test_sequence_slice
(
self
):
program
=
Program
()
with
program_guard
(
program
):
import
numpy
as
np
seqs
=
layers
.
data
(
name
=
'x'
,
shape
=
[
10
,
5
],
dtype
=
'float32'
,
lod_level
=
1
)
offset
=
layers
.
assign
(
input
=
np
.
array
([[
0
,
1
]]).
astype
(
'int32'
))
length
=
layers
.
assign
(
input
=
np
.
array
([[
2
,
1
]]).
astype
(
'int32'
))
out
=
layers
.
sequence_slice
(
input
=
seqs
,
offset
=
offset
,
length
=
length
)
self
.
assertIsNotNone
(
out
)
print
(
str
(
program
))
def
test_lod_reset
(
self
):
program
=
Program
()
with
program_guard
(
program
):
...
...
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