Package cc.mallet.fst.semi_supervised.pr

Class SumLatticePR

java.lang.Object

cc.mallet.fst.semi_supervised.pr.SumLatticePR

All Implemented Interfaces:

SumLattice

public class SumLatticePR
extends java.lang.Object
implements SumLattice

Lattice for E-step/I-projection in PR.

Author:

Gregory Druck, Kedar Bellare

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected class	SumLatticePR.LatticeNode

Field Summary

Fields

Modifier and Type	Field	Description
protected double[][]	gammas
protected LabelVector[]	labelings
protected int	latticeLength
protected SumLatticePR.LatticeNode[][]	nodes
protected double	totalWeight
protected Transducer	transducer
protected double[][][]	xis

Constructor Summary

Constructors

Constructor	Description
SumLatticePR(Transducer trans, int index, Sequence input, Sequence output, PRAuxiliaryModel auxModel, double[][][] cachedDots, boolean incrementConstraints, Transducer.Incrementor incrementor, LabelAlphabet outputAlphabet, boolean saveXis)

Method Summary

Modifier and Type	Method	Description
double	getAlpha(int ip, Transducer.State s)
double	getBeta(int ip, Transducer.State s)
double	getGammaProbability(int inputPosition, int stateIndex)
double	getGammaProbability(int inputPosition, Transducer.State s)
double[][]	getGammas()
double	getGammaWeight(int inputPosition, int stateIndex)
double	getGammaWeight(int inputPosition, Transducer.State s)
Sequence	getInput()
LabelVector	getLabelingAtPosition(int outputPosition)
protected SumLatticePR.LatticeNode	getLatticeNode(int ip, int stateIndex)
double	getTotalWeight()
Transducer	getTransducer()
double	getXiProbability(int ip, Transducer.State s1, Transducer.State s2)
double[][][]	getXis()
double	getXiWeight(int ip, Transducer.State s1, Transducer.State s2)
int	length()

Methods inherited from class java.lang.Object

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

Field Detail

totalWeight

protected double totalWeight

latticeLength

protected int latticeLength

gammas

protected double[][] gammas

xis

protected double[][][] xis

labelings

protected LabelVector[] labelings

transducer

protected Transducer transducer

nodes

protected SumLatticePR.LatticeNode[][] nodes

Constructor Detail

SumLatticePR

public SumLatticePR(Transducer trans,
                    int index,
                    Sequence input,
                    Sequence output,
                    PRAuxiliaryModel auxModel,
                    double[][][] cachedDots,
                    boolean incrementConstraints,
                    Transducer.Incrementor incrementor,
                    LabelAlphabet outputAlphabet,
                    boolean saveXis)

Method Detail

getLatticeNode

protected SumLatticePR.LatticeNode getLatticeNode(int ip,
                                                  int stateIndex)

getXis

public double[][][] getXis()

Specified by:

getXis in interface SumLattice

getGammas

public double[][] getGammas()

Specified by:

getGammas in interface SumLattice

getTotalWeight

public double getTotalWeight()

Specified by:

getTotalWeight in interface SumLattice

getGammaWeight

public double getGammaWeight(int inputPosition,
                             Transducer.State s)

Specified by:

getGammaWeight in interface SumLattice

getGammaWeight

public double getGammaWeight(int inputPosition,
                             int stateIndex)

getGammaProbability

public double getGammaProbability(int inputPosition,
                                  Transducer.State s)

Specified by:

getGammaProbability in interface SumLattice

getGammaProbability

public double getGammaProbability(int inputPosition,
                                  int stateIndex)

getXiProbability

public double getXiProbability(int ip,
                               Transducer.State s1,
                               Transducer.State s2)

Specified by:

getXiProbability in interface SumLattice

getXiWeight

public double getXiWeight(int ip,
                          Transducer.State s1,
                          Transducer.State s2)

Specified by:

getXiWeight in interface SumLattice

length

public int length()

Specified by:

length in interface SumLattice

getAlpha

public double getAlpha(int ip,
                       Transducer.State s)

Specified by:

getAlpha in interface SumLattice

getBeta

public double getBeta(int ip,
                      Transducer.State s)

Specified by:

getBeta in interface SumLattice

getLabelingAtPosition

public LabelVector getLabelingAtPosition(int outputPosition)

Specified by:

getLabelingAtPosition in interface SumLattice

getTransducer

public Transducer getTransducer()

Specified by:

getTransducer in interface SumLattice

getInput

public Sequence getInput()

Specified by:

getInput in interface SumLattice