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https://github.com/moses-smt/mosesdecoder.git
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79 lines
2.2 KiB
C++
79 lines
2.2 KiB
C++
#ifndef moses_LexicalReordering_h
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#define moses_LexicalReordering_h
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#include <string>
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#include <vector>
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#include "Factor.h"
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#include "Phrase.h"
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#include "TypeDef.h"
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#include "Util.h"
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#include "WordsRange.h"
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#include "ScoreProducer.h"
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#include "FeatureFunction.h"
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#include "LexicalReorderingState.h"
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#include "LexicalReorderingTable.h"
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namespace Moses
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{
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class Factor;
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class Phrase;
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class Hypothesis;
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class InputType;
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/** implementation of lexical reordering (Tilman ...) for phrase-based decoding
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*/
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class LexicalReordering : public StatefulFeatureFunction {
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public:
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LexicalReordering(std::vector<FactorType>& f_factors,
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std::vector<FactorType>& e_factors,
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const LexicalReorderingConfiguration& configuration,
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const std::string &filePath,
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const std::vector<float>& weights);
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virtual ~LexicalReordering();
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virtual FFState* Evaluate(const Hypothesis& cur_hypo,
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const FFState* prev_state,
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ScoreComponentCollection* accumulator) const;
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virtual const FFState* EmptyHypothesisState(const InputType &input) const;
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std::string GetScoreProducerWeightShortName(unsigned) const {
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return "d";
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};
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void InitializeForInput(const InputType& i){
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m_table->InitializeForInput(i);
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}
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Scores GetProb(const Phrase& f, const Phrase& e) const;
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virtual FFState* EvaluateChart(const ChartHypothesis&,
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int /* featureID */,
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ScoreComponentCollection*) const {
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CHECK(0); // not valid for chart decoder
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return NULL;
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}
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private:
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bool DecodeCondition(std::string s);
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bool DecodeDirection(std::string s);
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bool DecodeNumFeatureFunctions(std::string s);
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LexicalReorderingConfiguration m_configuration;
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std::string m_modelTypeString;
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std::vector<std::string> m_modelType;
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LexicalReorderingTable* m_table;
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//std::vector<Direction> m_direction;
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std::vector<LexicalReorderingConfiguration::Condition> m_condition;
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//std::vector<size_t> m_scoreOffset;
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//bool m_oneScorePerDirection;
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std::vector<FactorType> m_factorsE, m_factorsF;
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};
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}
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#endif
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