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#pragma once
#include <string>
#include "StatelessFeatureFunction.h"
namespace Moses
{
// Rule Scope - not quite completely implemented yet
class SpanLength : public StatelessFeatureFunction
{
public:
SpanLength(const std::string &line);
virtual bool IsUseable(const FactorMask &mask) const {
return true;
}
virtual void EvaluateInIsolation(const Phrase &source
, const TargetPhrase &targetPhrase
, ScoreComponentCollection &scoreBreakdown
, ScoreComponentCollection &estimatedScores) const;
virtual void EvaluateWithSourceContext(const InputType &input
, const InputPath &inputPath
, const TargetPhrase &targetPhrase
, const StackVec *stackVec
, ScoreComponentCollection &scoreBreakdown
, ScoreComponentCollection *estimatedScores = NULL) const;
void EvaluateTranslationOptionListWithSourceContext(const InputType &input
, const TranslationOptionList &translationOptionList) const {
}
virtual void EvaluateWhenApplied(const Hypothesis& hypo,
ScoreComponentCollection* accumulator) const {
}
virtual void EvaluateWhenApplied(const ChartHypothesis &hypo,
ScoreComponentCollection* accumulator) const {
}
void SetParameter(const std::string& key, const std::string& value);
protected:
enum SmoothingMethod {
None,
PlusConst,
};
SmoothingMethod m_smoothingMethod;
float m_const;
};
}
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