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#ifndef _FF_CSPLIT_H_
#define _FF_CSPLIT_H_
#include <boost/shared_ptr.hpp>
#include "ff.h"
#include "klm/lm/model.hh"
class BasicCSplitFeaturesImpl;
class BasicCSplitFeatures : public FeatureFunction {
public:
BasicCSplitFeatures(const std::string& param);
virtual void PrepareForInput(const SentenceMetadata& smeta);
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* out_context) const;
private:
boost::shared_ptr<BasicCSplitFeaturesImpl> pimpl_;
};
template <class M> class ReverseCharLMCSplitFeatureImpl;
class ReverseCharLMCSplitFeature : public FeatureFunction {
public:
ReverseCharLMCSplitFeature(const std::string& param);
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* out_context) const;
private:
boost::shared_ptr<ReverseCharLMCSplitFeatureImpl<lm::ngram::ProbingModel> > pimpl_;
const int fid_;
};
#endif
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