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Feature/softmax unfold #166

Merged
merged 6 commits into from
Aug 2, 2013
Merged

Feature/softmax unfold #166

merged 6 commits into from
Aug 2, 2013

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bob-carpenter
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Bunch of changes, all with tests:

  • unfolded the derivatives for softmax
  • added log_softmax
  • vectorized categorical_log and optimized
  • added categorical_logit
  • added log_sum_exp for vector, row vector and matrix with unfolded derivatives
  • added op_matrix_vari class to support log_sum_exp

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Test PASSed.
Refer to this link for build results: http://d1m1s1b1.stat.columbia.edu:8080/job/Stan%20Github%20Pull%20Requests/155/

@syclik
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syclik commented Aug 2, 2013

The pull request looks good to me.

syclik added a commit that referenced this pull request Aug 2, 2013
@syclik
Merge pull request #166 from stan-dev/feature/softmax-unfold
5f862ab 
Feature/softmax unfold
@syclik syclik merged commit 5f862ab into develop Aug 2, 2013
@syclik syclik deleted the feature/softmax-unfold branch August 2, 2013 12:32
@betanalpha betanalpha mentioned this pull request Apr 29, 2015
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@dustinvtran dustinvtran mentioned this pull request Oct 13, 2015
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@bob-carpenter @stan-buildbot @syclik