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comparison cost.py @ 496:f13847478c6d

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A few more ideas, in comments
author Joseph Turian <turian@gmail.com>
date Tue, 28 Oct 2008 12:09:49 -0400
parents 94a4c5b7293b
children
comparison
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495:7560817a07e8 496:f13847478c6d
1 """ 1 """
2 Cost functions. 2 Cost functions.
3 3
4 @note: All of these functions return one cost per example. So it is your 4 @note: All of these functions return one cost per example. So it is your
5 job to perform a tensor.sum over the individual example losses. 5 job to perform a tensor.sum over the individual example losses.
6
7 @todo: Make a Cost class, with a particular contract.
6 8
7 @todo: It would be nice to implement a hinge loss, with a particular margin. 9 @todo: It would be nice to implement a hinge loss, with a particular margin.
8 """ 10 """
9 11
10 import theano.tensor as T 12 import theano.tensor as T