edu.indiana.iucbrf.problem.differentiator
Class AverageIgnoreProblemDifferentiator

java.lang.Object
  edu.indiana.iucbrf.problem.differentiator.AbstractProblemDifferentiator
      edu.indiana.iucbrf.problem.differentiator.AverageProblemDifferentiator
          edu.indiana.iucbrf.problem.differentiator.AverageIgnoreProblemDifferentiator

All Implemented Interfaces:

ProblemDifferentiator, Differentiator, java.io.Serializable

public class AverageIgnoreProblemDifferentiator
extends AverageProblemDifferentiator

Calculates a weighted average difference between two features, where unknown values are not considered in the average.

See Also:

Serialized Form

Field Summary

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

defaultIndices, keyToFeatureDifferentiator, similarityWts, unknownFeatureHandler

Constructor Summary

AverageIgnoreProblemDifferentiator(DoubleCollection similarityWts, java.util.HashSet defaultIndices)
Creates a new instance of AverageIgnoreProblemDifferentiator

Method Summary

protected double	calcDifference(Problem p1, Problem p2, java.util.Collection indicesToUse) Calculates a weighted average difference between features
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

Constructor Detail

AverageIgnoreProblemDifferentiator

public AverageIgnoreProblemDifferentiator(DoubleCollection similarityWts,
                                          java.util.HashSet defaultIndices)

Creates a new instance of AverageIgnoreProblemDifferentiator

Method Detail

calcDifference

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

Calculates a weighted average difference between features

Overrides:

calcDifference in class AverageProblemDifferentiator

Parameters:

indicesToUse - A Collection of FeatureKeys to be used in difference measures.

toString

public java.lang.String toString()

Overrides:

toString in class AverageProblemDifferentiator