Moses::SquareMatrix Class Reference

A square array of floats to store future costs. More...

#include <SquareMatrix.h>

List of all members.

Public Member Functions
	SquareMatrix (size_t size)
	~SquareMatrix ()
size_t	GetSize () const
float	GetScore (size_t startPos, size_t endPos) const
void	SetScore (size_t startPos, size_t endPos, float value)
float	CalcFutureScore (WordsBitmap const &) const
float	CalcFutureScore (WordsBitmap const &, size_t startPos, size_t endPos) const
	TO_STRING ()
Protected Member Functions
	SquareMatrix ()
	SquareMatrix (const SquareMatrix &copy)
Protected Attributes
const size_t	m_size
float *	m_array
Friends
std::ostream &	operator<< (std::ostream &out, const SquareMatrix &matrix)

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Detailed Description

A square array of floats to store future costs.

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Constructor & Destructor Documentation

Moses::SquareMatrix::SquareMatrix

(

)

[protected]

Moses::SquareMatrix::SquareMatrix

(

const SquareMatrix &

copy

)

[protected]

Moses::SquareMatrix::SquareMatrix

(

size_t

size

)

[inline]

References m_array.

Moses::SquareMatrix::~SquareMatrix

(

)

[inline]

References m_array.

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Member Function Documentation

float Moses::SquareMatrix::CalcFutureScore	(	WordsBitmap const &	bitmap,
		size_t	startPos,
		size_t	endPos
	)			const

Calculare future score estimate for a given coverage bitmap and an additional span that is also covered. This function is used to compute future score estimates for hypotheses that we may want build, but first want to check.

Note: this function is implemented a bit more complex than the basic one (w/o additional phrase) for speed reasons, which is probably overkill.

/param bitmap coverage bitmap /param startPos start of the span that is added to the coverage /param endPos end of the span that is added to the coverage

References Moses::WordsBitmap::GetFirstGapPos(), Moses::WordsBitmap::GetLastPos(), GetScore(), Moses::WordsBitmap::GetSize(), Moses::WordsBitmap::GetValue(), and NOT_FOUND.

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float Moses::SquareMatrix::CalcFutureScore

(

WordsBitmap const &

bitmap

)

const

Calculare future score estimate for a given coverage bitmap

/param bitmap coverage bitmap

References GetScore(), Moses::WordsBitmap::GetSize(), and Moses::WordsBitmap::GetValue().

Referenced by Moses::Hypothesis::CalcExpectedScore(), Moses::Hypothesis::CalcScore(), and Moses::SearchNormal::ExpandAllHypotheses().

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float Moses::SquareMatrix::GetScore	(	size_t	startPos,
		size_t	endPos
	)			const [inline]

Get a future cost score for a span

References m_array, and m_size.

Referenced by Moses::TranslationOptionCollection::CalcFutureScore(), CalcFutureScore(), and Moses::operator<<().

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size_t Moses::SquareMatrix::GetSize

(

)

const [inline]

Returns length of the square: typically the sentence length

References m_size.

Referenced by Moses::operator<<().

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void Moses::SquareMatrix::SetScore	(	size_t	startPos,
		size_t	endPos,
		float	value
	)			[inline]

Set a future cost score for a span

References m_array, and m_size.

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

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Moses::SquareMatrix::TO_STRING

(

)

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Friends And Related Function Documentation

std::ostream& operator<<	(	std::ostream &	out,
		const SquareMatrix &	matrix
	)			[friend]

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Member Data Documentation

float* Moses::SquareMatrix::m_array [protected]

two-dimensional array to store floats

Referenced by GetScore(), SetScore(), SquareMatrix(), and ~SquareMatrix().

const size_t Moses::SquareMatrix::m_size [protected]

length of the square (sentence length)

Referenced by GetScore(), GetSize(), and SetScore().

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

• moses/src/SquareMatrix.h
• moses/src/SquareMatrix.cpp