edu.indiana.iucbrf.problem.differentiator
Class NormalizedEuclideanProblemDifferentiator

java.lang.Object
  edu.indiana.iucbrf.problem.differentiator.AbstractProblemDifferentiator
      edu.indiana.iucbrf.problem.differentiator.EuclideanProblemDifferentiator
          edu.indiana.iucbrf.problem.differentiator.NormalizedEuclideanProblemDifferentiator

All Implemented Interfaces:

ProblemDifferentiator, Differentiator, java.io.Serializable

public class NormalizedEuclideanProblemDifferentiator
extends EuclideanProblemDifferentiator

Assuming that all feature differentiators in use return a difference in [0,1], this problem differentiator will also return a difference in [0,1].

Some initialization modifications by Florian Hartge.

See Also:

Serialized Form

Field Summary

protected boolean	initialized
protected double	sqrtSimWtsSum

Fields inherited from class edu.indiana.iucbrf.problem.differentiator.AbstractProblemDifferentiator

defaultIndices, keyToFeatureDifferentiator, similarityWts, unknownFeatureHandler

Constructor Summary

NormalizedEuclideanProblemDifferentiator(DoubleCollection similarityWts, java.util.HashSet defaultIndices, Domain domain)
Creates a new instance of NormalizedEuclideanProblemDifferentiator

NormalizedEuclideanProblemDifferentiator(DoubleCollection similarityWts, java.util.HashSet defaultIndices, UnknownFeatureHandler unknownFeatureHandler, Domain domain)
Creates a new instance of NormalizedEuclideanProblemDifferentiator

Method Summary

protected double	calcDifference(Problem p1, Problem p2, java.util.Collection indicesToUse)
protected void	init()
java.lang.String	toString()

Methods inherited from class edu.indiana.iucbrf.problem.differentiator.AbstractProblemDifferentiator

addSimilarityWeight, calcDifference, calcDifference, defaultIndicesIterator, equals, getDefaultIndices, getFeatureDifferentiator, getIndexCount, getSimilarityWeights, getUnknownFeatureHandler, hashCode, isIndex, removeFeature, setIsIndex, setOverridingFeatureDifferentiator, setToDefaultFeatureDifferentiator, setToDefaultFeatureDifferentiator, setUnknownFeatureHandler, setupDefaultFeatureDifferentiators

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

sqrtSimWtsSum

protected double sqrtSimWtsSum

initialized

protected boolean initialized

Constructor Detail

NormalizedEuclideanProblemDifferentiator

public NormalizedEuclideanProblemDifferentiator(DoubleCollection similarityWts,
                                                java.util.HashSet defaultIndices,
                                                Domain domain)

Creates a new instance of NormalizedEuclideanProblemDifferentiator

NormalizedEuclideanProblemDifferentiator

public NormalizedEuclideanProblemDifferentiator(DoubleCollection similarityWts,
                                                java.util.HashSet defaultIndices,
                                                UnknownFeatureHandler unknownFeatureHandler,
                                                Domain domain)

Creates a new instance of NormalizedEuclideanProblemDifferentiator

Method Detail

init

protected void init()

calcDifference

protected double calcDifference(Problem p1,
                                Problem p2,
                                java.util.Collection indicesToUse)

Overrides:

calcDifference in class EuclideanProblemDifferentiator

toString

public java.lang.String toString()

Overrides:

toString in class EuclideanProblemDifferentiator