mirror of
https://github.com/moses-smt/mosesdecoder.git
synced 2024-11-10 10:59:21 +03:00
59 lines
1.7 KiB
C++
59 lines
1.7 KiB
C++
#pragma once
|
|
|
|
#include <stdexcept>
|
|
#include <string>
|
|
#include "StatefulFeatureFunction.h"
|
|
|
|
namespace Moses
|
|
{
|
|
class FFState;
|
|
class ScoreComponentCollection;
|
|
class Hypothesis;
|
|
class ChartHypothesis;
|
|
class WordsRange;
|
|
|
|
/** Calculates Distortion scores
|
|
*/
|
|
class DistortionScoreProducer : public StatefulFeatureFunction
|
|
{
|
|
public:
|
|
DistortionScoreProducer(const std::string &line);
|
|
|
|
bool IsUseable(const FactorMask &mask) const {
|
|
return true;
|
|
}
|
|
|
|
static float CalculateDistortionScore(const Hypothesis& hypo,
|
|
const WordsRange &prev, const WordsRange &curr, const int FirstGapPosition);
|
|
|
|
virtual const FFState* EmptyHypothesisState(const InputType &input) const;
|
|
|
|
virtual FFState* EvaluateWhenApplied(
|
|
const Hypothesis& cur_hypo,
|
|
const FFState* prev_state,
|
|
ScoreComponentCollection* accumulator) const;
|
|
|
|
virtual FFState* EvaluateWhenApplied(
|
|
const ChartHypothesis& /* cur_hypo */,
|
|
int /* featureID - used to index the state in the previous hypotheses */,
|
|
ScoreComponentCollection*) const {
|
|
throw std::logic_error("DistortionScoreProducer not supported in chart decoder, yet");
|
|
}
|
|
|
|
void EvaluateWithSourceContext(const InputType &input
|
|
, const InputPath &inputPath
|
|
, const TargetPhrase &targetPhrase
|
|
, const StackVec *stackVec
|
|
, ScoreComponentCollection &scoreBreakdown
|
|
, ScoreComponentCollection *estimatedFutureScore = NULL) const
|
|
{}
|
|
void EvaluateInIsolation(const Phrase &source
|
|
, const TargetPhrase &targetPhrase
|
|
, ScoreComponentCollection &scoreBreakdown
|
|
, ScoreComponentCollection &estimatedFutureScore) const
|
|
{}
|
|
|
|
};
|
|
}
|
|
|