Moses::LanguageModel Class Reference

Abstract base class which represent a language model on a contiguous phrase. More...

#include <Base.h>

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List of all members.

Public Member Functions
virtual	~LanguageModel ()
virtual LanguageModel *	Duplicate (ScoreIndexManager &scoreIndexManager) const =0
std::size_t	GetNumScoreComponents () const
	see ScoreProducer.h
bool	OOVFeatureEnabled () const
float	GetWeight () const
float	GetOOVWeight () const
std::string	GetScoreProducerWeightShortName (unsigned) const
	returns the weight parameter name of this producer (used in n-best list)
virtual void	InitializeBeforeSentenceProcessing ()
virtual void	CleanUpAfterSentenceProcessing ()
virtual const FFState *	EmptyHypothesisState (const InputType &input) const =0
	return the state associated with the empty hypothesis for a given sentence
virtual bool	Useable (const Phrase &phrase) const =0
virtual void	CalcScore (const Phrase &phrase, float &fullScore, float &ngramScore, std::size_t &oovCount) const =0
Protected Member Functions
	LanguageModel ()
void	Init (ScoreIndexManager &scoreIndexManager)
Protected Attributes
bool	m_enableOOVFeature

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Detailed Description

Abstract base class which represent a language model on a contiguous phrase.

Definition at line 38 of file Base.h.

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Constructor & Destructor Documentation

Moses::LanguageModel::LanguageModel

(

)

[protected]

Definition at line 35 of file Base.cpp.

References Moses::StaticData::GetLMEnableOOVFeature(), Moses::StaticData::Instance(), and m_enableOOVFeature.

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Moses::LanguageModel::~LanguageModel

(

)

[virtual]

Definition at line 43 of file Base.cpp.

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Member Function Documentation

virtual void Moses::LanguageModel::CalcScore	(	const Phrase &	phrase,
		float &	fullScore,
		float &	ngramScore,
		std::size_t &	oovCount
	)			const [pure virtual]

Referenced by Moses::LMList::CalcScore().

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virtual void Moses::LanguageModel::CleanUpAfterSentenceProcessing

(

)

[inline, virtual]

Reimplemented in Moses::LMRefCount.

Definition at line 69 of file Base.h.

Referenced by Moses::TranslationSystem::CleanUpAfterSentenceProcessing().

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virtual LanguageModel* Moses::LanguageModel::Duplicate

(

ScoreIndexManager &

scoreIndexManager

)

const [pure virtual]

Implemented in Moses::LMRefCount.

Referenced by Moses::StaticData::LoadLanguageModels().

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virtual const FFState* Moses::LanguageModel::EmptyHypothesisState

(

const InputType &

input

)

const [pure virtual]

return the state associated with the empty hypothesis for a given sentence

Implements Moses::StatefulFeatureFunction.

Implemented in Moses::LMRefCount.

size_t Moses::LanguageModel::GetNumScoreComponents

(

)

const [virtual]

see ScoreProducer.h

Implements Moses::ScoreProducer.

Definition at line 46 of file Base.cpp.

References m_enableOOVFeature.

float Moses::LanguageModel::GetOOVWeight

(

)

const

Definition at line 60 of file Base.cpp.

References Moses::StaticData::GetAllWeights(), Moses::ScoreProducer::GetScoreBookkeepingID(), Moses::StaticData::GetScoreIndexManager(), Moses::StaticData::Instance(), and m_enableOOVFeature.

Referenced by Moses::LMList::CalcScore().

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std::string Moses::LanguageModel::GetScoreProducerWeightShortName

(

unsigned

idx

)

const [inline, virtual]

returns the weight parameter name of this producer (used in n-best list)

Implements Moses::ScoreProducer.

Definition at line 63 of file Base.h.

float Moses::LanguageModel::GetWeight

(

)

const

Definition at line 54 of file Base.cpp.

References Moses::StaticData::GetAllWeights(), Moses::ScoreProducer::GetScoreBookkeepingID(), Moses::StaticData::GetScoreIndexManager(), and Moses::StaticData::Instance().

Referenced by Moses::LMList::CalcScore().

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void Moses::LanguageModel::Init

(

ScoreIndexManager &

scoreIndexManager

)

[protected]

Definition at line 39 of file Base.cpp.

References Moses::ScoreIndexManager::AddScoreProducer().

Referenced by Moses::LMRefCount::LMRefCount().

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virtual void Moses::LanguageModel::InitializeBeforeSentenceProcessing

(

)

[inline, virtual]

Reimplemented in Moses::LMRefCount.

Definition at line 67 of file Base.h.

Referenced by Moses::TranslationSystem::InitializeBeforeSentenceProcessing().

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bool Moses::LanguageModel::OOVFeatureEnabled

(

)

const [inline]

Definition at line 56 of file Base.h.

References m_enableOOVFeature.

Referenced by Moses::LanguageModelImplementation::Evaluate().

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virtual bool Moses::LanguageModel::Useable

(

const Phrase &

phrase

)

const [pure virtual]

Implemented in Moses::LMRefCount.

Referenced by Moses::LMList::CalcScore().

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Member Data Documentation

bool Moses::LanguageModel::m_enableOOVFeature [protected]

Definition at line 45 of file Base.h.

Referenced by GetNumScoreComponents(), GetOOVWeight(), LanguageModel(), and OOVFeatureEnabled().

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The documentation for this class was generated from the following files:

• mosesdecoder/moses/src/LM/Base.h
• mosesdecoder/moses/src/LM/Base.cpp