00001
00002
00003 #ifndef moses_DummyScoreProducers_h
00004 #define moses_DummyScoreProducers_h
00005
00006 #include "StatelessFeatureFunction.h"
00007 #include "StatefulFeatureFunction.h"
00008 #include "util/check.hh"
00009
00010 namespace Moses
00011 {
00012
00013 class WordsRange;
00014
00017 class DistortionScoreProducer : public StatefulFeatureFunction
00018 {
00019 public:
00020 DistortionScoreProducer(const std::string &line)
00021 : StatefulFeatureFunction("Distortion", 1, line)
00022 {}
00023
00024 static float CalculateDistortionScore(const Hypothesis& hypo,
00025 const WordsRange &prev, const WordsRange &curr, const int FirstGapPosition);
00026
00027 virtual const FFState* EmptyHypothesisState(const InputType &input) const;
00028
00029 virtual FFState* Evaluate(
00030 const Hypothesis& cur_hypo,
00031 const FFState* prev_state,
00032 ScoreComponentCollection* accumulator) const;
00033
00034 virtual FFState* EvaluateChart(
00035 const ChartHypothesis& ,
00036 int ,
00037 ScoreComponentCollection*) const {
00038 CHECK(0);
00039 return NULL;
00040 }
00041 };
00042
00046 class WordPenaltyProducer : public StatelessFeatureFunction
00047 {
00048 public:
00049 WordPenaltyProducer(const std::string &line) : StatelessFeatureFunction("WordPenalty",1, line) {}
00050
00051 virtual void Evaluate(
00052 const PhraseBasedFeatureContext& context,
00053 ScoreComponentCollection* accumulator) const
00054 {}
00055
00056 virtual void EvaluateChart(
00057 const ChartBasedFeatureContext& context,
00058 ScoreComponentCollection* accumulator) const
00059 {
00060
00061 }
00062
00063 virtual void Evaluate(const TargetPhrase &targetPhrase
00064 , ScoreComponentCollection &scoreBreakdown
00065 , ScoreComponentCollection &estimatedFutureScore) const;
00066
00067 };
00068
00070 class UnknownWordPenaltyProducer : public StatelessFeatureFunction
00071 {
00072 public:
00073 UnknownWordPenaltyProducer(const std::string &line)
00074 : StatelessFeatureFunction("UnknownWordPenalty",1, line)
00075 {
00076 m_tuneable = false;
00077 }
00078
00079 };
00080
00081 }
00082
00083 #endif