Fix a critical bug in softmax_with_cross_entropy_op backward.#9120

Merged

qingqing01 merged 3 commits intoPaddlePaddle:developfrom qingqing01:softmax_with_cross_entropy_op

Mar 15, 2018

+26-26

Commits on Mar 15, 2018

Fix a critical bug in softmax_with_cross_entropy_op, which will lead to the wrong gradients.
qingqing01
committed
Merge branch 'develop' of https://github.com/PaddlePaddle/Paddle into softmax_with_cross_entropy_op
qingqing01
committed
Enhance unit testing.
qingqing01
committed