Moses::PartialTranslOptColl Class Reference

#include <PartialTranslOptColl.h>

List of all members.

Public Member Functions
	PartialTranslOptColl ()
	~PartialTranslOptColl ()
void	AddNoPrune (const TranslationSystem *system, TranslationOption *partialTranslOpt)
void	Add (const TranslationSystem *system, TranslationOption *partialTranslOpt)
void	Prune ()
const std::vector < TranslationOption * > &	GetList () const
void	DetachAll ()
size_t	GetPrunedCount ()
Protected Attributes
std::vector< TranslationOption * >	m_list
float	m_bestScore
float	m_worstScore
size_t	m_maxSize
size_t	m_totalPruned

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Detailed Description

Contains partial translation options, while these are constructed in the class TranslationOption. The factored translation model allows for multiple translation and generation steps during a single Hypothesis expansion. For efficiency, all these expansions are precomputed and stored as TranslationOption. The expansion process itself may be still explode, so efficient handling of partial translation options during expansion is required. This class assists in this tasks by implementing pruning. This implementation is similar to the one in HypothesisStack.

Definition at line 44 of file PartialTranslOptColl.h.

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Constructor & Destructor Documentation

Moses::PartialTranslOptColl::PartialTranslOptColl

(

)

constructor, intializes counters and thresholds

Definition at line 28 of file PartialTranslOptColl.cpp.

References Moses::StaticData::GetMaxNoPartTransOpt(), Moses::StaticData::Instance(), m_bestScore, m_maxSize, m_totalPruned, and m_worstScore.

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Moses::PartialTranslOptColl::~PartialTranslOptColl

(

)

[inline]

destructor, cleans out list

Definition at line 57 of file PartialTranslOptColl.h.

References m_list, and Moses::RemoveAllInColl().

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Member Function Documentation

void Moses::PartialTranslOptColl::Add	(	const TranslationSystem *	system,
		TranslationOption *	partialTranslOpt
	)

add a partial translation option to the collection, prune if necessary. This is done similar to the Prune() in TranslationOptionCollection

Definition at line 54 of file PartialTranslOptColl.cpp.

References AddNoPrune(), m_list, m_maxSize, and Prune().

Referenced by Moses::DecodeStepTranslation::Process(), Moses::DecodeStepGeneration::Process(), and Moses::DecodeStepTranslation::ProcessInitialTranslation().

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void Moses::PartialTranslOptColl::AddNoPrune	(	const TranslationSystem *	system,
		TranslationOption *	partialTranslOpt
	)

add a partial translation option to the collection (without pruning)

Definition at line 38 of file PartialTranslOptColl.cpp.

References Moses::TranslationOption::CalcScore(), Moses::TranslationOption::GetFutureScore(), m_bestScore, m_list, m_totalPruned, and m_worstScore.

Referenced by Add().

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void Moses::PartialTranslOptColl::DetachAll

(

)

[inline]

clear out the list

Definition at line 71 of file PartialTranslOptColl.h.

References m_list.

Referenced by Moses::TranslationOptionCollection::CreateTranslationOptionsForRange().

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const std::vector<TranslationOption*>& Moses::PartialTranslOptColl::GetList

(

)

const [inline]

returns list of translation options

Definition at line 66 of file PartialTranslOptColl.h.

References m_list.

Referenced by Moses::TranslationOptionCollection::CreateTranslationOptionsForRange().

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size_t Moses::PartialTranslOptColl::GetPrunedCount

(

)

[inline]

return number of pruned partial hypotheses

Definition at line 76 of file PartialTranslOptColl.h.

References m_totalPruned.

Referenced by Moses::TranslationOptionCollection::CreateTranslationOptionsForRange().

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void Moses::PartialTranslOptColl::Prune

(

)

pruning, remove partial translation options, if list too big

Definition at line 73 of file PartialTranslOptColl.cpp.

References Moses::ComparePartialTranslationOption(), m_list, m_maxSize, m_totalPruned, and m_worstScore.

Referenced by Add().

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Member Data Documentation

float Moses::PartialTranslOptColl::m_bestScore [protected]

score of the best translation option

Definition at line 48 of file PartialTranslOptColl.h.

Referenced by AddNoPrune(), and PartialTranslOptColl().

std::vector<TranslationOption*> Moses::PartialTranslOptColl::m_list [protected]

Definition at line 47 of file PartialTranslOptColl.h.

Referenced by Add(), AddNoPrune(), DetachAll(), GetList(), Prune(), and ~PartialTranslOptColl().

size_t Moses::PartialTranslOptColl::m_maxSize [protected]

maximum number of translation options allowed

Definition at line 50 of file PartialTranslOptColl.h.

Referenced by Add(), PartialTranslOptColl(), and Prune().

size_t Moses::PartialTranslOptColl::m_totalPruned [protected]

number of options pruned

Definition at line 51 of file PartialTranslOptColl.h.

Referenced by AddNoPrune(), GetPrunedCount(), PartialTranslOptColl(), and Prune().

float Moses::PartialTranslOptColl::m_worstScore [protected]

score of the worse translation option

Definition at line 49 of file PartialTranslOptColl.h.

Referenced by AddNoPrune(), PartialTranslOptColl(), and Prune().

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

• mosesdecoder/moses/src/PartialTranslOptColl.h
• mosesdecoder/moses/src/PartialTranslOptColl.cpp