Package cc.mallet.fst

Class SumLatticeDefault

java.lang.Object

cc.mallet.fst.SumLatticeDefault

All Implemented Interfaces:

SumLattice

Direct Known Subclasses:

SumLatticeConstrained

public class SumLatticeDefault
extends java.lang.Object
implements SumLattice

Default, full dynamic programming implementation of the Forward-Backward "Sum-(Product)-Lattice" algorithm

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	SumLatticeDefault.Factory
protected class	SumLatticeDefault.LatticeNode

Field Summary

Fields

Modifier and Type	Field	Description
protected static boolean	saveXis

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	SumLatticeDefault()
	SumLatticeDefault(Transducer trans, Sequence input)
	SumLatticeDefault(Transducer trans, Sequence input, boolean saveXis)
	SumLatticeDefault(Transducer trans, Sequence input, Transducer.Incrementor incrementor)
	SumLatticeDefault(Transducer trans, Sequence input, Sequence output)
	SumLatticeDefault(Transducer trans, Sequence input, Sequence output, Transducer.Incrementor incrementor)
	SumLatticeDefault(Transducer trans, Sequence input, Sequence output, Transducer.Incrementor incrementor, boolean saveXis)
	SumLatticeDefault(Transducer trans, Sequence input, Sequence output, Transducer.Incrementor incrementor, boolean saveXis, LabelAlphabet outputAlphabet)
	SumLatticeDefault(Transducer trans, Sequence input, Sequence output, Transducer.Incrementor incrementor, LabelAlphabet outputAlphabet)

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 SumLatticeDefault.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

saveXis

protected static boolean saveXis

Constructor Detail

SumLatticeDefault

protected SumLatticeDefault()

SumLatticeDefault

public SumLatticeDefault(Transducer trans,
                         Sequence input)

SumLatticeDefault

public SumLatticeDefault(Transducer trans,
                         Sequence input,
                         boolean saveXis)

SumLatticeDefault

public SumLatticeDefault(Transducer trans,
                         Sequence input,
                         Transducer.Incrementor incrementor)

SumLatticeDefault

public SumLatticeDefault(Transducer trans,
                         Sequence input,
                         Sequence output)

SumLatticeDefault

public SumLatticeDefault(Transducer trans,
                         Sequence input,
                         Sequence output,
                         Transducer.Incrementor incrementor)

SumLatticeDefault

public SumLatticeDefault(Transducer trans,
                         Sequence input,
                         Sequence output,
                         Transducer.Incrementor incrementor,
                         LabelAlphabet outputAlphabet)

SumLatticeDefault

public SumLatticeDefault(Transducer trans,
                         Sequence input,
                         Sequence output,
                         Transducer.Incrementor incrementor,
                         boolean saveXis)

SumLatticeDefault

public SumLatticeDefault(Transducer trans,
                         Sequence input,
                         Sequence output,
                         Transducer.Incrementor incrementor,
                         boolean saveXis,
                         LabelAlphabet outputAlphabet)

Method Detail

getLatticeNode

protected SumLatticeDefault.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

getInput

public Sequence getInput()

Specified by:

getInput 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