Package cc.mallet.fst.semi_supervised.pr

Class PRAuxiliaryModel

java.lang.Object

cc.mallet.fst.Transducer

cc.mallet.fst.semi_supervised.pr.PRAuxiliaryModel

All Implemented Interfaces:

java.io.Serializable

public class PRAuxiliaryModel
extends Transducer

Auxiliar model (q) for E-step/I-projection in Posterior Regularization (PR).

Author:

Gregory Druck

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class cc.mallet.fst.Transducer

Transducer.Incrementor, Transducer.State, Transducer.TransitionIterator

Field Summary

Fields inherited from class cc.mallet.fst.Transducer

CERTAIN_WEIGHT, IMPOSSIBLE_WEIGHT, inputPipe, outputPipe

Constructor Summary

Constructors

Constructor	Description
PRAuxiliaryModel(CRF baseModel, java.util.ArrayList<PRConstraint> constraints)

Method Summary

Modifier and Type	Method	Description
PRAuxiliaryModel	copy()
CRF	getBaseModel()
double	getCompleteValueContribution()
PRConstraint	getConstraint(int index)
double	getParameter(int index)
void	getParameters(double[] params)
Transducer.State	getState(int index)
double	getValue()
void	getValueGradient(double[] gradient)
double	getWeight(int index, int position, Sequence input, Transducer.TransitionIterator iter)
void	incrementTransition(int index, int position, Sequence input, Transducer.TransitionIterator iter, double prob)
java.util.Iterator	initialStateIterator()
int	numConstraints()
int	numParameters()
int	numStates()
void	preProcess(int index, int position, Sequence input)
void	setParameter(int index, double value)
void	setParameters(double[] params)
void	zeroExpectations()

Methods inherited from class cc.mallet.fst.Transducer

averageTokenAccuracy, canIterateAllTransitions, generatePath, getInputPipe, getMaxLatticeFactory, getOutputPipe, getSumLatticeFactory, isGenerative, label, less_efficient_sumLogProb, no_longer_needed_sumNegLogProb, print, setMaxLatticeFactory, setSumLatticeFactory, stateIndexOfString, sumLogProb, transduce, transduce

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PRAuxiliaryModel

public PRAuxiliaryModel(CRF baseModel,
                        java.util.ArrayList<PRConstraint> constraints)

Method Detail

copy

public PRAuxiliaryModel copy()

preProcess

public void preProcess(int index,
                       int position,
                       Sequence input)

getValue

public double getValue()

getCompleteValueContribution

public double getCompleteValueContribution()

getValueGradient

public void getValueGradient(double[] gradient)

getWeight

public double getWeight(int index,
                        int position,
                        Sequence input,
                        Transducer.TransitionIterator iter)

incrementTransition

public void incrementTransition(int index,
                                int position,
                                Sequence input,
                                Transducer.TransitionIterator iter,
                                double prob)

zeroExpectations

public void zeroExpectations()

numParameters

public int numParameters()

getParameters

public void getParameters(double[] params)

getParameter

public double getParameter(int index)

setParameters

public void setParameters(double[] params)

setParameter

public void setParameter(int index,
                         double value)

numConstraints

public int numConstraints()

getConstraint

public PRConstraint getConstraint(int index)

getBaseModel

public CRF getBaseModel()

numStates

public int numStates()

Specified by:

numStates in class Transducer

getState

public Transducer.State getState(int index)

Specified by:

getState in class Transducer

initialStateIterator

public java.util.Iterator initialStateIterator()

Specified by:

initialStateIterator in class Transducer