Mercurial > pylearn

diff nnet_ops.py @ 448:0961d4b56ec5

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Added some documentation
author Joseph Turian <turian@gmail.com>
date Wed, 03 Sep 2008 17:08:54 -0400
parents 0392b666320a
children 2bb67e978c28
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--- a/nnet_ops.py	Wed Aug 27 17:08:33 2008 -0400
+++ b/nnet_ops.py	Wed Sep 03 17:08:54 2008 -0400
@@ -610,6 +610,7 @@
     Compute the crossentropy of binary output wrt binary target.
     @note: We do not sum, crossentropy is computed by component.
     @todo: Rewrite as a scalar, and then broadcast to tensor.
+    @todo: This is essentially duplicated as cost.cross_entropy
     """
     return -(target * tensor.log(output) + (1 - target) * tensor.log(1 - output))