edu.indiana.iucbrf.feature.differentiator
Class AbstractFeatureDifferentiator

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

All Implemented Interfaces:

FeatureDifferentiator, Differentiator, java.io.Serializable

Direct Known Subclasses:

EqualityFeatureDifferentiator, NeighborhoodFeatureDifferentiator, SubtractionFeatureDifferentiator, TermVectorFeatureDifferentiator

public abstract class AbstractFeatureDifferentiator
extends java.lang.Object
implements FeatureDifferentiator

See Also:

Serialized Form

Field Summary

protected double

normalizationValue The calculated difference is normalized (divided by) this value.

Constructor Summary

AbstractFeatureDifferentiator()
Creates a new instance of AbstractFeatureDifferentiator

AbstractFeatureDifferentiator(double normalizationValue)

Method Summary

double	calcDifference(Feature f1, Feature f2) Normalizes the result of calcDifferenceImpl, according to normalizationValue.
double	calcDifference(java.lang.Object obj1, java.lang.Object obj2)
protected abstract double	calcDifferenceImpl(Feature f1, Feature f2)

Methods inherited from class java.lang.Object

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

Field Detail

normalizationValue

protected double normalizationValue

The calculated difference is normalized (divided by) this value. Default is 1.0 (hence no normalization).

Constructor Detail

AbstractFeatureDifferentiator

public AbstractFeatureDifferentiator()

Creates a new instance of AbstractFeatureDifferentiator

AbstractFeatureDifferentiator

public AbstractFeatureDifferentiator(double normalizationValue)

Method Detail

calcDifference

public double calcDifference(java.lang.Object obj1,
                             java.lang.Object obj2)

Specified by:

calcDifference in interface Differentiator

calcDifference

public double calcDifference(Feature f1,
                             Feature f2)

Normalizes the result of calcDifferenceImpl, according to normalizationValue.

Specified by:

calcDifference in interface FeatureDifferentiator

calcDifferenceImpl

protected abstract double calcDifferenceImpl(Feature f1,
                                             Feature f2)