2013-05-25 02:57:06 +04:00
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#pragma once
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#include <string>
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#include "StatefulFeatureFunction.h"
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2016-03-17 19:10:49 +03:00
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#include "moses/Range.h"
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2013-05-25 02:57:06 +04:00
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namespace Moses
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{
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/** Calculates Distortion scores
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*/
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class DistortionScoreProducer : public StatefulFeatureFunction
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{
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2014-12-14 02:19:09 +03:00
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protected:
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static std::vector<const DistortionScoreProducer*> s_staticColl;
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2016-03-17 19:10:49 +03:00
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FactorType m_sparseFactorTypeSource;
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FactorType m_sparseFactorTypeTarget;
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bool m_useSparse;
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bool m_sparseDistance;
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bool m_sparseSubordinate;
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FactorType m_sparseFactorTypeTargetSubordinate;
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const Factor* m_subordinateConjunctionTagFactor;
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2013-05-25 02:57:06 +04:00
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public:
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2014-12-14 02:19:09 +03:00
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static const std::vector<const DistortionScoreProducer*>& GetDistortionFeatureFunctions() {
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return s_staticColl;
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}
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2013-06-20 15:50:41 +04:00
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DistortionScoreProducer(const std::string &line);
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2013-05-25 02:57:06 +04:00
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2016-03-17 19:10:49 +03:00
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void SetParameter(const std::string& key, const std::string& value);
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2013-05-30 15:51:40 +04:00
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bool IsUseable(const FactorMask &mask) const {
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return true;
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}
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2013-05-30 15:41:08 +04:00
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2013-05-25 02:57:06 +04:00
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static float CalculateDistortionScore(const Hypothesis& hypo,
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2015-10-25 16:37:59 +03:00
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const Range &prev, const Range &curr, const int FirstGapPosition);
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2013-05-25 02:57:06 +04:00
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virtual const FFState* EmptyHypothesisState(const InputType &input) const;
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2014-07-10 02:41:08 +04:00
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virtual FFState* EvaluateWhenApplied(
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2013-05-25 02:57:06 +04:00
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const Hypothesis& cur_hypo,
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const FFState* prev_state,
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ScoreComponentCollection* accumulator) const;
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2014-07-10 02:54:16 +04:00
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virtual FFState* EvaluateWhenApplied(
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2013-05-25 02:57:06 +04:00
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const ChartHypothesis& /* cur_hypo */,
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int /* featureID - used to index the state in the previous hypotheses */,
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ScoreComponentCollection*) const {
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2016-03-17 19:10:49 +03:00
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UTIL_THROW(util::Exception, "DIstortion not implemented in chart decoder");
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2013-05-29 21:16:15 +04:00
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}
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2013-08-30 18:49:00 +04:00
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2013-05-25 02:57:06 +04:00
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};
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}
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