net.sourceforge.cilib.functions.clustering.validityindices
Class GeneralisedDunnIndex

java.lang.Object
  net.sourceforge.cilib.functions.Function
      net.sourceforge.cilib.functions.ContinuousFunction
          net.sourceforge.cilib.functions.clustering.ClusteringFitnessFunction
              net.sourceforge.cilib.functions.clustering.validityindices.ScatterSeperationRatio
                  net.sourceforge.cilib.functions.clustering.validityindices.GeneralisedDunnIndex

All Implemented Interfaces:

Serializable, Cloneable

Direct Known Subclasses:

DunnIndex, DunnIndex33

public abstract class GeneralisedDunnIndex
extends ScatterSeperationRatio

This is the Generalised Dunn Index. Illustrated in:

Author:

Theuns Cloete

See Also:

Serialized Form

Field Summary

Fields inherited from class net.sourceforge.cilib.functions.clustering.validityindices.ScatterSeperationRatio

betweenClusterSeperationCache, withinClusterScatterCache

Fields inherited from class net.sourceforge.cilib.functions.clustering.ClusteringFitnessFunction

arrangedCentroids, arrangedClusters, clusterCenterStrategy, clustersFormed, helper

Constructor Summary

GeneralisedDunnIndex()

Method Summary

double	calculateFitness() This is a template method.
protected Double	worstFitness()

Methods inherited from class net.sourceforge.cilib.functions.clustering.validityindices.ScatterSeperationRatio

cacheBetweenClusterSeperation, cacheWithinClusterScatter, calculateBetweenClusterSeperation, calculateWithinClusterScatter, getBetweenClusterSeperation, getWithinClusterScatter

Methods inherited from class net.sourceforge.cilib.functions.clustering.ClusteringFitnessFunction

calculateAverageIntraClusterDistance, calculateAverageSetDistance, calculateClusterDiameter, calculateIntraClusterDistance, calculateMaximumAverageDistance, calculateMaximumInterClusterDistance, calculateMaximumSetDistance, calculateMinimumInterClusterDistance, calculateMinimumSetDistance, calculateQuantisationError, evaluate, getClone, getMaximum, getMinimum, setClusterCenterStrategy, validateFitness

Methods inherited from class net.sourceforge.cilib.functions.ContinuousFunction

evaluate

Methods inherited from class net.sourceforge.cilib.functions.Function

getBehavioralDomainRegistry, getDimension, getDomain, getDomainRegistry, setBehavioralDomain, setBehaviouralDomainRegistry, setDomain

Methods inherited from class java.lang.Object

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

Constructor Detail

GeneralisedDunnIndex

public GeneralisedDunnIndex()

Method Detail

calculateFitness

public double calculateFitness()

This is a template method. It calls the calculateWithinClusterScatter and calculateBetweenClusterSeperation methods defined in ScatterSeperationRatio that should be implemented by sub-classes.

Specified by:

calculateFitness in class ClusteringFitnessFunction

worstFitness

protected Double worstFitness()

Overrides:

worstFitness in class ClusteringFitnessFunction