https://github.com/Microsoft/CNTK
Revision 59a2c26d7d1c4bf0d577baa6b166fe5c17639ab6 authored by KeDengMS on 31 March 2017, 18:07:11 UTC, committed by KeDengMS on 31 March 2017, 18:07:11 UTC
When minibatch size is big (like 10000), the diagonal matrix in times node for gradient could be big. This change implements a ColumnwiseScaleAndWeightedAdd to reduce the cost in that case.
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Tip revision: 59a2c26d7d1c4bf0d577baa6b166fe5c17639ab6 authored by KeDengMS on 31 March 2017, 18:07:11 UTC
Make sparse label CE backprop faster
Tip revision: 59a2c26
CONTRIBUTING.md
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