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author | Chris Dyer <cdyer@allegro.clab.cs.cmu.edu> | 2012-11-18 13:35:42 -0500 |
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committer | Chris Dyer <cdyer@allegro.clab.cs.cmu.edu> | 2012-11-18 13:35:42 -0500 |
commit | 8aa29810bb77611cc20b7a384897ff6703783ea1 (patch) | |
tree | 8635daa8fffb3f2cd90e30b41e27f4f9e0909447 /training/utils/entropy.h | |
parent | fbdacabc85bea65d735f2cb7f92b98e08ce72d04 (diff) |
major restructure of the training code
Diffstat (limited to 'training/utils/entropy.h')
-rw-r--r-- | training/utils/entropy.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/training/utils/entropy.h b/training/utils/entropy.h new file mode 100644 index 00000000..796589ca --- /dev/null +++ b/training/utils/entropy.h @@ -0,0 +1,22 @@ +#ifndef _CSENTROPY_H_ +#define _CSENTROPY_H_ + +#include <vector> +#include "sparse_vector.h" + +namespace training { + class CandidateSet; + + class CandidateSetEntropy { + public: + explicit CandidateSetEntropy(const CandidateSet& cs) : cands_(cs) {} + // compute the entropy (expected log likelihood) of a CandidateSet + // (optional) the gradient of the entropy with respect to params + double operator()(const std::vector<double>& params, + SparseVector<double>* g = NULL) const; + private: + const CandidateSet& cands_; + }; +}; + +#endif |