#include <ViterbiAccum.h>

Inheritance diagram for alize::ViterbiAccum:

Collaboration diagram for alize::ViterbiAccum:

Public Member Functions
void	addState (Mixture &m)
real_t &	logTransition (unsigned long i1, unsigned long i2)
real_t	logTransition (unsigned long i1, unsigned long i2) const
Mixture &	getState (unsigned long i) const
unsigned long	getStateCount () const
void	reset ()
void	computeAndAccumulate (const Feature &f, double llkW=0)
void	computeAndAccumulate (FeatureServer &fs, unsigned long start, unsigned long count, double fudge)
void	computeAndAccumulate (FeatureServer &fs, DoubleVector &llk, unsigned long start, unsigned long count)
void	computeAndAccumulate (const Feature &f, double fudge, double penality)
unsigned long	getFeatureCount () const
const ULongVector &	getPath ()
real_t	getLlp () const
virtual String	getClassName () const
virtual String	toString () const
virtual	~ViterbiAccum ()
Static Public Member Functions
static ViterbiAccum &	create (StatServer &, const Config &, const K &)
Private Member Functions
lk_t	computeStateLLK (unsigned long stateIndex, const Feature &) const
	ViterbiAccum (StatServer &, const Config &)
	ViterbiAccum (const ViterbiAccum &)
const ViterbiAccum &	operator= (const ViterbiAccum &c)
bool	operator== (const ViterbiAccum &c) const
bool	operator!= (const ViterbiAccum &c) const
Private Attributes
const Config *	_pConfig
RefVector< Mixture >	_stateVect
DoubleVector	_transMatrix
DoubleVector	_llpVect
DoubleVector	_tmpLLKVect
DoubleVector	_tmpllpVect
ULongVector	_tmpTab
unsigned long	_featureCount
ULongVector	_path
bool	_pathDefined
real_t	_llp
bool	_llpDefined
StatServer *	_pStatServer
Friends
class	TestViterbiAccum

Detailed Description

Class used to determine the Viterbi path. Only the Stat server can create this king of object

<FRANCAIS>Le modele ergodique est sans constrainte : toutes les transitions d'un etat vers l'autre sont possibles

Author:: Frederic Wils frederic.wils@lia.univ-avignon.fr

Version:: 1.0

Date:: 2004

Definition at line 95 of file ViterbiAccum.h.

Constructor & Destructor Documentation

ViterbiAccum::~ViterbiAccum ( ) [virtual]

Definition at line 528 of file ViterbiAccum.cpp.

ViterbiAccum::ViterbiAccum	(	StatServer &	ss,
		const Config &	c
	)		`[private]`

Definition at line 72 of file ViterbiAccum.cpp.

References reset().

Referenced by create().

alize::ViterbiAccum::ViterbiAccum ( const ViterbiAccum & ) [private]

Member Function Documentation

void ViterbiAccum::addState ( Mixture & m )

Adds a state (a mixture)

Parameters:

m	the mixture to add

Definition at line 83 of file ViterbiAccum.cpp.

References _stateVect, _transMatrix, alize::RefVector< T >::addObject(), alize::RealVector< T >::setSize(), and alize::RefVector< T >::size().

void ViterbiAccum::computeAndAccumulate	(	FeatureServer &	fs,
		unsigned long	start,
		unsigned long	count,
		double	fudge
	)

New method from Corinne Fredouille (corinne.fredouille@lia.univ-avignon.fr)

Definition at line 223 of file ViterbiAccum.cpp.

References _featureCount, _llpDefined, _llpVect, _pathDefined, _stateVect, _tmpLLKVect, _tmpllpVect, _tmpTab, alize::ULongVector::addValue(), alize::RealVector< T >::addValue(), alize::RealVector< T >::clear(), computeStateLLK(), logTransition(), alize::FeatureServer::readFeature(), alize::FeatureServer::seekFeature(), and alize::RefVector< T >::size().

void ViterbiAccum::computeAndAccumulate	(	FeatureServer &	fs,
		DoubleVector &	llk,
		unsigned long	start,
		unsigned long	count
	)

New method from Corinne Fredouille (corinne.fredouille@lia.univ-avignon.fr)

Definition at line 163 of file ViterbiAccum.cpp.

References _featureCount, _llpDefined, _llpVect, _pathDefined, _stateVect, _tmpLLKVect, _tmpllpVect, _tmpTab, alize::ULongVector::addValue(), alize::RealVector< T >::addValue(), alize::RealVector< T >::clear(), computeStateLLK(), logTransition(), alize::FeatureServer::readFeature(), alize::FeatureServer::seekFeature(), and alize::RefVector< T >::size().

void ViterbiAccum::computeAndAccumulate	(	const Feature &	f,
		double	fudge,
		double	penality
	)

New method from Corinne Fredouille (corinne.fredouille@lia.univ-avignon.fr)

Definition at line 409 of file ViterbiAccum.cpp.

References _featureCount, _llpDefined, _llpVect, _pathDefined, _stateVect, _tmpLLKVect, _tmpllpVect, _tmpTab, alize::ULongVector::addValue(), alize::RealVector< T >::addValue(), alize::RealVector< T >::clear(), computeStateLLK(), logTransition(), and alize::RefVector< T >::size().

void ViterbiAccum::computeAndAccumulate	(	const Feature &	f,
		double	llkW = `0`
	)

Updates the internal accumulators with the feature

Parameters:

f	the feature
llkW	new parameter : contact corinne.fredouille@lia.univ-avignon.fr

Definition at line 123 of file ViterbiAccum.cpp.

References _featureCount, _llpDefined, _llpVect, _pathDefined, _stateVect, _tmpLLKVect, _tmpllpVect, _tmpTab, alize::ULongVector::addValue(), alize::RealVector< T >::addValue(), alize::RealVector< T >::clear(), computeStateLLK(), logTransition(), and alize::RefVector< T >::size().

lk_t ViterbiAccum::computeStateLLK	(	unsigned long	stateIndex,
		const Feature &	f
	)		const `[private]`

Definition at line 489 of file ViterbiAccum.cpp.

References _pStatServer, _stateVect, alize::StatServer::computeLLK(), and alize::RefVector< T >::getObject().

Referenced by computeAndAccumulate().

ViterbiAccum & ViterbiAccum::create	(	StatServer &	ss,
		const Config &	c,
		const K &
	)		`[static]`

Definition at line 75 of file ViterbiAccum.cpp.

References alize::Object::assertMemoryIsAllocated(), and ViterbiAccum().

String ViterbiAccum::getClassName ( ) const [virtual]

Returns the name of the class

Returns:: the name of the class of the object as a String

Implements alize::Object.

Definition at line 499 of file ViterbiAccum.cpp.

unsigned long ViterbiAccum::getFeatureCount ( ) const

Returns the number of features accumulated

Definition at line 450 of file ViterbiAccum.cpp.

References _featureCount.

real_t ViterbiAccum::getLlp ( ) const

Returns the maximum log-probability value. You must call getPath() beforehand to compute the value

Exceptions:

Exception if the value is not computed

Definition at line 482 of file ViterbiAccum.cpp.

References _llp, and _llpDefined.

const ULongVector & ViterbiAccum::getPath ( )

Computes and returns the Viterbi path

Returns:: the path (a constant reference to an ULongVector object)

Definition at line 452 of file ViterbiAccum.cpp.

References _featureCount, _llp, _llpDefined, _llpVect, _path, _pathDefined, _stateVect, _tmpTab, alize::Object::max(), alize::ULongVector::setSize(), and alize::RefVector< T >::size().

Mixture & ViterbiAccum::getState ( unsigned long i ) const

Returns the state (Mixture object) of index i

Parameters:

i index

Returns:: a reference to the Mixture object

Exceptions:

IndexOutOfBoundException

Definition at line 103 of file ViterbiAccum.cpp.

References _stateVect, and alize::RefVector< T >::getObject().

unsigned long ViterbiAccum::getStateCount ( ) const

Returns the number of states

Returns:: the number of states

Definition at line 106 of file ViterbiAccum.cpp.

References _stateVect, and alize::RefVector< T >::size().

Referenced by toString().

real_t & ViterbiAccum::logTransition	(	unsigned long	i1,
		unsigned long	i2
	)

Sets or gets a log-probability transition between two states

Parameters:

i1	index of the first state
i2	index of the second state

Returns:: a reference to the value of the log-probability

Exceptions:

IndexOutOfBoundException

Definition at line 90 of file ViterbiAccum.cpp.

References _stateVect, _transMatrix, and alize::RefVector< T >::size().

Referenced by computeAndAccumulate(), logTransition(), and toString().

real_t ViterbiAccum::logTransition	(	unsigned long	i1,
		unsigned long	i2
	)		const

Definition at line 100 of file ViterbiAccum.cpp.

References logTransition().

bool alize::ViterbiAccum::operator!= ( const ViterbiAccum & c ) const [private]

not implemented

const ViterbiAccum& alize::ViterbiAccum::operator= ( const ViterbiAccum & c ) [private]

not implemented

bool alize::ViterbiAccum::operator== ( const ViterbiAccum & c ) const [private]

not implemented

void ViterbiAccum::reset ( )

Resets the accumulators

Definition at line 114 of file ViterbiAccum.cpp.

References _featureCount, _llpDefined, _llpVect, _pathDefined, _tmpTab, alize::RealVector< T >::clear(), and alize::ULongVector::clear().

Referenced by ViterbiAccum().

String ViterbiAccum::toString ( ) const [virtual]

This method is frequently overridden in the derived classes. If it is not, it returns the name of the class of the object and the address of the object