org.uma.jmetal.qualityindicator.impl

Class InvertedGenerationalDistance<S extends Solution<?>>

java.lang.Object

org.uma.jmetal.util.naming.impl.SimpleDescribedEntity

org.uma.jmetal.qualityindicator.impl.GenericIndicator<S>

org.uma.jmetal.qualityindicator.impl.InvertedGenerationalDistance<S>

All Implemented Interfaces:

Serializable, QualityIndicator<List<S>,Double>, DescribedEntity

public class InvertedGenerationalDistance<S extends Solution<?>>
extends GenericIndicator<S>

This class implements the inverted generational distance metric. Reference: Van Veldhuizen, D.A., Lamont, G.B.: Multiobjective Evolutionary Algorithm Research: A History and Analysis. Technical Report TR-98-03, Dept. Elec. Comput. Eng., Air Force Inst. Technol. (1998)

Author:

Antonio J. Nebro , Juan J. Durillo

See Also:

Serialized Form

Field Summary

Fields inherited from class org.uma.jmetal.qualityindicator.impl.GenericIndicator

referenceParetoFront

Constructor Summary

Constructors

Constructor and Description
InvertedGenerationalDistance() Default constructor
InvertedGenerationalDistance(Front referenceParetoFront) Constructor
InvertedGenerationalDistance(String referenceParetoFrontFile) Constructor
InvertedGenerationalDistance(String referenceParetoFrontFile, double p) Constructor

Method Summary

Modifier and Type	Method and Description
Double	evaluate(List<S> solutionList) Evaluate() method
String	getDescription()
String	getName()
double	invertedGenerationalDistance(Front front, Front referenceFront) Returns the inverted generational distance value for a given front
boolean	isTheLowerTheIndicatorValueTheBetter() This method returns true if lower indicator values are preferred and false otherwise

Methods inherited from class org.uma.jmetal.qualityindicator.impl.GenericIndicator

setReferenceParetoFront, setReferenceParetoFront

Methods inherited from class org.uma.jmetal.util.naming.impl.SimpleDescribedEntity

setDescription, setName, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

InvertedGenerationalDistance

public InvertedGenerationalDistance()

Default constructor

InvertedGenerationalDistance

public InvertedGenerationalDistance(String referenceParetoFrontFile,
                                    double p)
                             throws FileNotFoundException

Constructor

Parameters:

referenceParetoFrontFile -

Throws:

FileNotFoundException

InvertedGenerationalDistance

public InvertedGenerationalDistance(String referenceParetoFrontFile)
                             throws FileNotFoundException

Constructor

Parameters:

referenceParetoFrontFile -

Throws:

FileNotFoundException

InvertedGenerationalDistance

public InvertedGenerationalDistance(Front referenceParetoFront)

Constructor

Parameters:

referenceParetoFront -

Throws:

FileNotFoundException

Method Detail

evaluate

public Double evaluate(List<S> solutionList)

Evaluate() method

Parameters:

solutionList -

Returns:

invertedGenerationalDistance

public double invertedGenerationalDistance(Front front,
                                           Front referenceFront)

Returns the inverted generational distance value for a given front

Parameters:

front - The front

referenceFront - The reference pareto front

getName

public String getName()

Specified by:

getName in interface DescribedEntity

Overrides:

getName in class SimpleDescribedEntity

Returns:

the name of the DescribedEntity

getDescription

public String getDescription()

Specified by:

getDescription in interface DescribedEntity

Overrides:

getDescription in class SimpleDescribedEntity

Returns:

the description of the DescribedEntity

isTheLowerTheIndicatorValueTheBetter

public boolean isTheLowerTheIndicatorValueTheBetter()

Description copied from class: GenericIndicator

This method returns true if lower indicator values are preferred and false otherwise

Specified by:

isTheLowerTheIndicatorValueTheBetter in class GenericIndicator<S extends Solution<?>>

Returns: