kli-nlpr commented on a change in pull request #7944: Update softmax_output.cc
URL: https://github.com/apache/incubator-mxnet/pull/7944#discussion_r141514319
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File path: src/operator/softmax_output.cc
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@@ -62,7 +62,7 @@ MXNET_REGISTER_OP_PROPERTY(SoftmaxOutput, SoftmaxOutputProp)
.. math:: \text{CE(label, output)} = - \sum_i \text{label}_i
\log(\text{output}_i)
- - The gradient of cross entropy loss w.r.t softmax output:
+ - The gradient of cross entropy loss w.r.t the input array:
.. math:: \text{gradient} = \text{output} - \text{label}
Review comment:
@piiswrong As @chinakook said, I think it is the gradient of the loss wrt
the input of the softmax activation function (i.e. the input array)
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