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/*
* File: lexdecom.h
* Author: Felipe Sánchez-Martínez, Universitat d'Alacant <fsanchez@dlsi.ua.es>
*
* Created on 2010/01/27
*/
#ifndef _LEXDECOM_H
#define _LEXDECOM_H
#include "phrasetable.h"
#include "scorer.h"
class LexicalDecompositionPhraseScorer : public PhraseScorer
{
private:
explicit LexicalDecompositionPhraseScorer(PhraseTable &pd, bool reverse, const String &lwfile,
const char *argv[], int &argp, const PhraseScorerFactory &ptf);
virtual void do_score_phrases();
virtual Score do_get_score(const PhraseTable::const_iterator &it);
Score get_weight(const String &s_src, const String &s_tgt) const;
Score get_weight(Count src, Count tgt) const;
typedef std::map<std::pair<Count,Count>, Score> WeightMapType_;
WeightMapType_ weight_map_;
// p(J|I) = probability of source-length J given target-length I
std::map<unsigned, std::map<unsigned, Score> > prob_srclen_tgtlen_;
Score get_noisy_or_combination(Count src_word, PhraseInfo &tgt_phrase);
PhraseScorer* black_box_scorer;
public:
static PhraseScorer *create_scorer(const char *argv[], int &argp, bool reverse, const PhraseScorerFactory &ptf);
};
#endif /* _LEXDECOM_H */
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