sequence
Class TwoYwithXFeatureFunction

java.lang.Object
  sequence.TwoYwithXFeatureFunction

All Implemented Interfaces:

Serializable, SequenceFeatureFunction

public class TwoYwithXFeatureFunction
extends Object
implements SequenceFeatureFunction

See Also:

Serialized Form

Field Summary

int	numInputs
int	xAsize
int	yAsize

Constructor Summary

TwoYwithXFeatureFunction(Alphabet xAlphabet, Alphabet yAlphabet)

Method Summary

SparseVector	apply(SparseVector[] x, int[] y) apply the feature function to an entire sequence of y's
SparseVector	apply(SparseVector[] xseq, int ytm1, int yt, int t) apply the feature function to a pair of tags (label positions)
int	wSize()

Methods inherited from class java.lang.Object

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

Field Detail

xAsize

public int xAsize

yAsize

public int yAsize

numInputs

public int numInputs

Constructor Detail

TwoYwithXFeatureFunction

public TwoYwithXFeatureFunction(Alphabet xAlphabet,
                                Alphabet yAlphabet)

Method Detail

apply

public SparseVector apply(SparseVector[] x,
                          int[] y)

Description copied from interface: SequenceFeatureFunction

apply the feature function to an entire sequence of y's

Specified by:

apply in interface SequenceFeatureFunction

wSize

public int wSize()

Specified by:

wSize in interface SequenceFeatureFunction

apply

public SparseVector apply(SparseVector[] xseq,
                          int ytm1,
                          int yt,
                          int t)

Description copied from interface: SequenceFeatureFunction

apply the feature function to a pair of tags (label positions)

Specified by:

apply in interface SequenceFeatureFunction

Parameters:

xseq - entire input sequence

yt - label at position t

t - position of interest. Should be 0<=t