org.uma.jmetal.qualityindicator.impl

Class Epsilon<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.Epsilon<S>

All Implemented Interfaces:

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

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

This class implements the unary epsilon additive indicator as proposed in E. Zitzler, E. Thiele, L. Laummanns, M., Fonseca, C., and Grunert da Fonseca. V (2003): Performance Assessment of Multiobjective Optimizers: An Analysis and Review. The code is the a Java version of the original metric implementation by Eckart Zitzler. It can be used also as a command line program just by typing $java org.uma.jmetal.qualityindicator.impl.Epsilon

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
Epsilon() Default constructor
Epsilon(Front referenceParetoFront) Constructor
Epsilon(String referenceParetoFrontFile) Constructor

Method Summary

Modifier and Type	Method and Description
Double	evaluate(List<S> solutionList) Evaluate() method
String	getDescription()
String	getName()
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

Epsilon

public Epsilon()

Default constructor

Epsilon

public Epsilon(String referenceParetoFrontFile)
        throws FileNotFoundException

Constructor

Parameters:

referenceParetoFrontFile -

Throws:

FileNotFoundException

Epsilon

public Epsilon(Front referenceParetoFront)

Constructor

Parameters:

referenceParetoFront -

Method Detail

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:

evaluate

public Double evaluate(List<S> solutionList)

Evaluate() method

Parameters:

solutionList -

Returns:

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