mosesdecoder/moses/FF/SpanLength.h

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2014-06-04 19:52:57 +04:00
#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
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, const TargetPhrase &targetPhrase
, ScoreComponentCollection &scoreBreakdown
, ScoreComponentCollection &estimatedFutureScore) const;
virtual void Evaluate(const InputType &input
, const InputPath &inputPath
, const TargetPhrase &targetPhrase
, const StackVec *stackVec
, ScoreComponentCollection &scoreBreakdown
, ScoreComponentCollection *estimatedFutureScore = NULL) const;
virtual void Evaluate(const Hypothesis& hypo,
ScoreComponentCollection* accumulator) const
{}
virtual void EvaluateChart(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;
};
}