de.aitools.dm.clustering.validation.external
Class Homogeneity

java.lang.Object
  de.aitools.dm.clustering.validation.ExternalValidationMeasure
      de.aitools.dm.clustering.validation.external.Homogeneity

public class Homogeneity
extends ExternalValidationMeasure

References:

   A. Rosenberg and J. Hirschberg, 2007.
   V-Measure: A conditional entropy-based external cluster evaluation measure.
 

Version:

$Id: Homogeneity.java,v 1.6 2011/04/14 15:22:54 hoppe Exp $

Author:

dennis.hoppe(/\t)uni-weimar.de

Constructor Summary

Homogeneity()

Method Summary

static double	log2(double value)
double	measure(Matrix contingencyTable) Perform consecutive clustering evaluations in a more efficient manner.

Methods inherited from class de.aitools.dm.clustering.validation.ExternalValidationMeasure

measure

Methods inherited from class java.lang.Object

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

Constructor Detail

Homogeneity

public Homogeneity()

Method Detail

measure

public double measure(Matrix contingencyTable)

Description copied from class: ExternalValidationMeasure

Perform consecutive clustering evaluations in a more efficient manner.

Specified by:

measure in class ExternalValidationMeasure

Parameters:

contingencyTable - a precomputed contincengy table

Returns:

log2

public static double log2(double value)