edu.indiana.iucbrf.feature.differentiator
Class TextTermVectorPairFeatureDifferentiator

java.lang.Object
  edu.indiana.iucbrf.feature.differentiator.AbstractFeatureDifferentiator
      edu.indiana.iucbrf.feature.differentiator.TermVectorFeatureDifferentiator
          edu.indiana.iucbrf.feature.differentiator.TextTermVectorPairFeatureDifferentiator

All Implemented Interfaces:

FeatureDifferentiator, Differentiator, java.io.Serializable

public class TextTermVectorPairFeatureDifferentiator
extends TermVectorFeatureDifferentiator

This feature differentiator assumes that the features contain TextTermVectorPair values. In calculating difference, if term vectors are present in both TextTermVectorPairs, a 1 - cosine similarity is returned. Otherwise the text is compared on an equal/not-equal basis.

See Also:

Serialized Form

Field Summary

Fields inherited from class edu.indiana.iucbrf.feature.differentiator.AbstractFeatureDifferentiator

normalizationValue

Constructor Summary

TextTermVectorPairFeatureDifferentiator()
Creates a new instance of TextTermVectorPairFeatureDifferentiator

TextTermVectorPairFeatureDifferentiator(double normalizationValue)

Method Summary

protected double

calcDifferenceImpl(Feature f1, Feature f2)

Methods inherited from class edu.indiana.iucbrf.feature.differentiator.AbstractFeatureDifferentiator

calcDifference, calcDifference

Methods inherited from class java.lang.Object

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

Constructor Detail

TextTermVectorPairFeatureDifferentiator

public TextTermVectorPairFeatureDifferentiator()

Creates a new instance of TextTermVectorPairFeatureDifferentiator

TextTermVectorPairFeatureDifferentiator

public TextTermVectorPairFeatureDifferentiator(double normalizationValue)

Method Detail

calcDifferenceImpl

protected double calcDifferenceImpl(Feature f1,
                                    Feature f2)

Overrides:

calcDifferenceImpl in class TermVectorFeatureDifferentiator