From 0af1c4a9feed5a38f34e1ea5a44e3887f702059f Mon Sep 17 00:00:00 2001 From: guosheng Date: Mon, 21 Aug 2017 14:39:05 +0800 Subject: [PATCH] Follow comments and refine annotations on ScaleShiftLayer --- paddle/gserver/layers/ScaleShiftLayer.cpp | 8 ++++---- python/paddle/trainer_config_helpers/layers.py | 10 +++++++--- 2 files changed, 11 insertions(+), 7 deletions(-) diff --git a/paddle/gserver/layers/ScaleShiftLayer.cpp b/paddle/gserver/layers/ScaleShiftLayer.cpp index 06dcb409f8c..35fd038ab43 100644 --- a/paddle/gserver/layers/ScaleShiftLayer.cpp +++ b/paddle/gserver/layers/ScaleShiftLayer.cpp @@ -17,15 +17,15 @@ limitations under the License. */ namespace paddle { /** - * A layer applies a slope and an intercept to the input element-wise for - * scaling and shifting. Noting that this layer is trainable which differs - * from the SlopeInterceptLayer. + * A layer applies a linear transformation to each element in each row of + * the input matrix. For each element, the layer first re-scale it and then + * adds a bias to it. * * \f[ * y = wx + b * \f] * - * Here, w is scale and b is offset, which are scalars and trainable. + * Here, w is the scale and b is the bias. Both w and b are trainable scalars. * */ diff --git a/python/paddle/trainer_config_helpers/layers.py b/python/paddle/trainer_config_helpers/layers.py index ec3a87aa366..c9e3ded65cb 100755 --- a/python/paddle/trainer_config_helpers/layers.py +++ b/python/paddle/trainer_config_helpers/layers.py @@ -6219,9 +6219,13 @@ def kmax_sequence_score_layer(input, name=None, beam_size=1): @wrap_bias_attr_default() def scale_shift_layer(input, name=None, param_attr=None, bias_attr=None): """ - A layer applies a slope and an intercept to the input element-wise for - scaling and shifting. Noting that this layer is trainable which differs - from the slope_intercept_layer. + A layer applies a linear transformation to each element in each row of + the input matrix. For each element, the layer first re-scale it and then + adds a bias to it. + + This layer is very like the SlopeInterceptLayer, except the scale and + bias are trainable. + .. math:: y = w * x + b -- GitLab