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#pragma once |
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#include <boost/shared_ptr.hpp> |
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#include <boost/bind.hpp> |
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#include <boost/thread.hpp> |
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#ifdef __linux |
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#include <pthread.h> |
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#endif |
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#include "../FF/StatefulFeatureFunction.h" |
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#include "lm/model.hh" |
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#include "../legacy/Factor.h" |
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#include "../legacy/Util2.h" |
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#include "../Word.h" |
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#include "../TypeDef.h" |
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namespace Moses2 |
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{ |
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class Word; |
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class KENLMBatch: public StatefulFeatureFunction |
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{ |
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public: |
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KENLMBatch(size_t startInd, const std::string &line); |
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virtual ~KENLMBatch(); |
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virtual void Load(System &system); |
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void SetParameter(const std::string& key, |
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const std::string& value); |
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virtual FFState* BlankState(MemPool &pool, const System &sys) const; |
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virtual void EmptyHypothesisState(FFState &state, const ManagerBase &mgr, |
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const InputType &input, const Hypothesis &hypo) const; |
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virtual void |
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EvaluateInIsolation(MemPool &pool, const System &system, const Phrase<Moses2::Word> &source, |
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const TargetPhraseImpl &targetPhrase, Scores &scores, |
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SCORE &estimatedScore) const; |
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virtual void |
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EvaluateInIsolation(MemPool &pool, const System &system, const Phrase<SCFG::Word> &source, |
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const TargetPhrase<SCFG::Word> &targetPhrase, Scores &scores, |
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SCORE &estimatedScore) const; |
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virtual void EvaluateWhenApplied(const ManagerBase &mgr, |
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const Hypothesis &hypo, const FFState &prevState, Scores &scores, |
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FFState &state) const; |
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virtual void EvaluateWhenApplied(const SCFG::Manager &mgr, |
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const SCFG::Hypothesis &hypo, int featureID, Scores &scores, |
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FFState &state) const; |
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virtual void EvaluateWhenAppliedBatch( |
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const Batch &batch) const; |
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protected: |
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std::string m_path; |
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FactorType m_factorType; |
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util::LoadMethod m_load_method; |
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const Factor *m_bos; |
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const Factor *m_eos; |
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typedef lm::ngram::ProbingModel Model; |
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boost::shared_ptr<Model> m_ngram; |
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void CalcScore(const Phrase<Moses2::Word> &phrase, float &fullScore, float &ngramScore, |
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std::size_t &oovCount) const; |
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inline lm::WordIndex TranslateID(const Word &word) const { |
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std::size_t factor = word[m_factorType]->GetId(); |
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return (factor >= m_lmIdLookup.size() ? 0 : m_lmIdLookup[factor]); |
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} |
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lm::WordIndex *LastIDs(const Hypothesis &hypo, lm::WordIndex *indices) const; |
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std::vector<lm::WordIndex> m_lmIdLookup; |
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mutable std::vector<const Batch*> m_batches; |
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mutable size_t m_numHypos; |
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mutable boost::shared_mutex m_accessLock; |
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mutable boost::mutex m_mutex; |
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mutable boost::condition_variable m_threadNeeded; |
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void EvaluateWhenAppliedBatch() const; |
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}; |
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} |
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