diff options
author | Victor Chahuneau <vchahune@cs.cmu.edu> | 2012-10-16 01:27:30 -0400 |
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committer | Victor Chahuneau <vchahune@cs.cmu.edu> | 2012-10-16 01:27:30 -0400 |
commit | 62bf03f0ec79b658c9208f0ae8976397e64a7dee (patch) | |
tree | d95676017f04b2abb6315c5f550064c03aeda702 /decoder/ff_basic.h | |
parent | 501c0419200234f4ff6b8c3d9f9602596a96c28e (diff) | |
parent | 51b5c16c9110999ac573bd3383d7eb0e3f10fc37 (diff) |
Merge branch 'master' of github.com:redpony/cdec
Diffstat (limited to 'decoder/ff_basic.h')
-rw-r--r-- | decoder/ff_basic.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/decoder/ff_basic.h b/decoder/ff_basic.h new file mode 100644 index 00000000..901c0110 --- /dev/null +++ b/decoder/ff_basic.h @@ -0,0 +1,68 @@ +#ifndef _FF_BASIC_H_ +#define _FF_BASIC_H_ + +#include "ff.h" + +// word penalty feature, for each word on the E side of a rule, +// add value_ +class WordPenalty : public FeatureFunction { + public: + WordPenalty(const std::string& param); + static std::string usage(bool p,bool d) { + return usage_helper("WordPenalty","","number of target words (local feature)",p,d); + } + protected: + virtual void TraversalFeaturesImpl(const SentenceMetadata& smeta, + const HG::Edge& edge, + const std::vector<const void*>& ant_contexts, + SparseVector<double>* features, + SparseVector<double>* estimated_features, + void* context) const; + private: + const int fid_; + const double value_; +}; + +class SourceWordPenalty : public FeatureFunction { + public: + SourceWordPenalty(const std::string& param); + static std::string usage(bool p,bool d) { + return usage_helper("SourceWordPenalty","","number of source words (local feature, and meaningless except when input has non-constant number of source words, e.g. segmentation/morphology/speech recognition lattice)",p,d); + } + protected: + virtual void TraversalFeaturesImpl(const SentenceMetadata& smeta, + const HG::Edge& edge, + const std::vector<const void*>& ant_contexts, + SparseVector<double>* features, + SparseVector<double>* estimated_features, + void* context) const; + private: + const int fid_; + const double value_; +}; + +#define DEFAULT_MAX_ARITY 9 +#define DEFAULT_MAX_ARITY_STRINGIZE(x) #x +#define DEFAULT_MAX_ARITY_STRINGIZE_EVAL(x) DEFAULT_MAX_ARITY_STRINGIZE(x) +#define DEFAULT_MAX_ARITY_STR DEFAULT_MAX_ARITY_STRINGIZE_EVAL(DEFAULT_MAX_ARITY) + +class ArityPenalty : public FeatureFunction { + public: + ArityPenalty(const std::string& param); + static std::string usage(bool p,bool d) { + return usage_helper("ArityPenalty","[MaxArity(default " DEFAULT_MAX_ARITY_STR ")]","Indicator feature Arity_N=1 for rule of arity N (local feature). 0<=N<=MaxArity(default " DEFAULT_MAX_ARITY_STR ")",p,d); + } + + protected: + virtual void TraversalFeaturesImpl(const SentenceMetadata& smeta, + const HG::Edge& edge, + const std::vector<const void*>& ant_contexts, + SparseVector<double>* features, + SparseVector<double>* estimated_features, + void* context) const; + private: + std::vector<WordID> fids_; + const double value_; +}; + +#endif |