Package org.uma.jmetal.qualityindicator.impl

Class InvertedGenerationalDistancePlus

java.lang.Object

org.uma.jmetal.qualityindicator.QualityIndicator

org.uma.jmetal.qualityindicator.impl.InvertedGenerationalDistancePlus

public class InvertedGenerationalDistancePlus
extends QualityIndicator

This class implements the inverted generational distance metric plust (IGD+) Reference: Ishibuchi et al 2015, "A Study on Performance Evaluation Ability of a Modified Inverted Generational Distance Indicator", GECCO 2015

Author:

Antonio J. Nebro

Field Summary

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

referenceFront

Constructor Summary

Constructors

Constructor	Description
InvertedGenerationalDistancePlus()	Default constructor
InvertedGenerationalDistancePlus(double[][] referenceFront)	Constructor

Method Summary

Modifier and Type	Method	Description
double	compute(double[][] front)	Evaluate() method
String	description()
double	invertedGenerationalDistancePlus(double[][] front, double[][] referenceFront)	Returns the inverted generational distance plus value for a given front
boolean	isTheLowerTheIndicatorValueTheBetter()	Returns true if lower indicator values are preferred and false otherwise
String	name()
QualityIndicator	newInstance()

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

referenceFront, referenceFront

Methods inherited from class java.lang.Object

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

Constructor Details

InvertedGenerationalDistancePlus

public InvertedGenerationalDistancePlus()

Default constructor

InvertedGenerationalDistancePlus

public InvertedGenerationalDistancePlus(double[][] referenceFront)

Constructor

Parameters:

referenceFront -

Throws:

FileNotFoundException

Method Details

newInstance

public QualityIndicator newInstance()

Specified by:

newInstance in class QualityIndicator

compute

public double compute(double[][] front)

Evaluate() method

Specified by:

compute in class QualityIndicator

Parameters:

front -

Returns:

invertedGenerationalDistancePlus

public double invertedGenerationalDistancePlus(double[][] front,
 double[][] referenceFront)

Returns the inverted generational distance plus value for a given front

Parameters:

front - The front

referenceFront - The reference pareto front

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