Package org.uma.jmetal.qualityindicator.impl

Class NormalizedHypervolume

java.lang.Object

org.uma.jmetal.qualityindicator.QualityIndicator

org.uma.jmetal.qualityindicator.impl.NormalizedHypervolume

public class NormalizedHypervolume
extends QualityIndicator

Class providing an implementation of the normalized hypervolume, which is calculated as follows: relative hypervolume = 1 - (HV of the front / HV of the reference front). Before computing this indicator it must be checked that the HV of the reference front is not zero.

Author:

Antonio J. Nebro

Field Summary

Fields inherited from class org.uma.jmetal.qualityindicator.QualityIndicator

referenceFront

Constructor Summary

Constructors

Constructor	Description
NormalizedHypervolume()
NormalizedHypervolume(double[] referencePoint)
NormalizedHypervolume(double[][] referenceFront)

Method Summary

Modifier and Type	Method	Description
double	compute(double[][] front)
String	description()
boolean	isTheLowerTheIndicatorValueTheBetter()	Returns true if lower indicator values are preferred and false otherwise
String	name()
QualityIndicator	newInstance()
void	referenceFront(double[][] referenceFront)

Methods inherited from class org.uma.jmetal.qualityindicator.QualityIndicator

referenceFront

Methods inherited from class java.lang.Object

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

Constructor Details

NormalizedHypervolume

public NormalizedHypervolume()

NormalizedHypervolume

public NormalizedHypervolume(double[] referencePoint)

NormalizedHypervolume

public NormalizedHypervolume(double[][] referenceFront)

Method Details

newInstance

public QualityIndicator newInstance()

Specified by:

newInstance in class QualityIndicator

referenceFront

public void referenceFront(double[][] referenceFront)

Overrides:

referenceFront in class QualityIndicator

name

public String name()

Specified by:

name in class QualityIndicator

description

public String description()

Specified by:

description in class QualityIndicator

isTheLowerTheIndicatorValueTheBetter

public boolean isTheLowerTheIndicatorValueTheBetter()

Description copied from class: QualityIndicator

Returns true if lower indicator values are preferred and false otherwise

Specified by:

isTheLowerTheIndicatorValueTheBetter in class QualityIndicator

compute

public double compute(double[][] front)

Specified by:

compute in class QualityIndicator