Optimizer Class Reference

#include <Optimizer.h>

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List of all members.

Public Member Functions
	Optimizer (unsigned Pd, const std::vector< unsigned > &i2O, const std::vector< bool > &positive, const std::vector< parameter_t > &start, unsigned int nrandom)
void	SetScorer (Scorer *scorer)
void	SetFeatureData (FeatureDataHandle feature_data)
virtual	~Optimizer ()
unsigned	size () const
statscore_t	Run (Point &) const
virtual statscore_t	TrueRun (Point &) const =0
void	Get1bests (const Point &param, std::vector< unsigned > &bests) const
statscore_t	GetStatScore (const std::vector< unsigned > &nbests) const
statscore_t	GetStatScore (const Point &param) const
std::vector< statscore_t >	GetIncStatScore (const std::vector< unsigned > &ref, const std::vector< std::vector< std::pair< unsigned, unsigned > > > &diffs) const
statscore_t	LineOptimize (const Point &start, const Point &direction, Point &best) const
Protected Attributes
Scorer *	m_scorer
FeatureDataHandle	m_feature_data
unsigned int	m_num_random_directions
const std::vector< bool > &	m_positive

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Detailed Description

Abstract optimizer class.

Definition at line 18 of file Optimizer.h.

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Constructor & Destructor Documentation

Optimizer::Optimizer	(	unsigned	Pd,
		const std::vector< unsigned > &	i2O,
		const std::vector< bool > &	positive,
		const std::vector< parameter_t > &	start,
		unsigned int	nrandom
	)

Optimizer::~Optimizer

(

)

[virtual]

Definition at line 59 of file Optimizer.cpp.

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Member Function Documentation

void Optimizer::Get1bests	(	const Point &	param,
		std::vector< unsigned > &	bests
	)			const

Given a set of lambdas, get the nbest for each sentence.

Referenced by GetStatScore().

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std::vector<statscore_t> Optimizer::GetIncStatScore	(	const std::vector< unsigned > &	ref,
		const std::vector< std::vector< std::pair< unsigned, unsigned > > > &	diffs
	)			const

Referenced by LineOptimize().

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statscore_t Optimizer::GetStatScore

(

const Point &

param

)

const

Definition at line 61 of file Optimizer.cpp.

References Get1bests(), and GetStatScore().

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statscore_t Optimizer::GetStatScore

(

const std::vector< unsigned > &

nbests

)

const [inline]

Given a set of nbests, get the Statistical score.

Definition at line 56 of file Optimizer.h.

References m_scorer, and Scorer::score().

Referenced by GetStatScore(), Run(), and RandomOptimizer::TrueRun().

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statscore_t Optimizer::LineOptimize	(	const Point &	start,
		const Point &	direction,
		Point &	best
	)			const

Get the optimal Lambda and the best score in a particular direction from a given Point.

Definition at line 88 of file Optimizer.cpp.

References AddThreshold(), CHECK, Point::getdim(), GetIncStatScore(), m_feature_data, m_positive, Point::SetScore(), size(), and verboselevel().

Referenced by RandomDirectionOptimizer::TrueRun(), and SimpleOptimizer::TrueRun().

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statscore_t Optimizer::Run

(

Point &

P

)

const

Generic wrapper around TrueRun to check a few things. Non virtual.

Definition at line 330 of file Optimizer.cpp.

References Scorer::getReferenceSize(), Point::GetScore(), GetStatScore(), m_feature_data, m_scorer, Point::SetScore(), TrueRun(), and verboselevel().

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void Optimizer::SetFeatureData

(

FeatureDataHandle

feature_data

)

[inline]

Definition at line 31 of file Optimizer.h.

References m_feature_data.

Referenced by main().

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void Optimizer::SetScorer

(

Scorer *

scorer

)

[inline]

Definition at line 30 of file Optimizer.h.

References m_scorer.

Referenced by main().

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unsigned Optimizer::size

(

)

const [inline]

Definition at line 34 of file Optimizer.h.

References m_feature_data.

Referenced by LineOptimize().

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virtual statscore_t Optimizer::TrueRun

(

Point &

)

const [pure virtual]

Main function that performs an optimization.

Implemented in SimpleOptimizer, RandomDirectionOptimizer, and RandomOptimizer.

Referenced by Run().

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Member Data Documentation

FeatureDataHandle Optimizer::m_feature_data [protected]

Definition at line 22 of file Optimizer.h.

Referenced by LineOptimize(), Run(), SetFeatureData(), and size().

unsigned int Optimizer::m_num_random_directions [protected]

Definition at line 23 of file Optimizer.h.

Referenced by RandomDirectionOptimizer::TrueRun(), and SimpleOptimizer::TrueRun().

const std::vector<bool>& Optimizer::m_positive [protected]

Definition at line 25 of file Optimizer.h.

Referenced by LineOptimize().

Scorer* Optimizer::m_scorer [protected]

Definition at line 21 of file Optimizer.h.

Referenced by GetStatScore(), Run(), and SetScorer().

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

• mosesdecoder/mert/Optimizer.h
• mosesdecoder/mert/Optimizer.cpp