org.uma.jmetal.qualityindicator.impl

Class GeneralizedSpread<Evaluate extends List<? extends Solution<?>>>

java.lang.Object

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

org.uma.jmetal.qualityindicator.impl.GeneralizedSpread<Evaluate>

All Implemented Interfaces:

QualityIndicator<Evaluate,Double>, DescribedEntity

public class GeneralizedSpread<Evaluate extends List<? extends Solution<?>>>
extends SimpleDescribedEntity
implements QualityIndicator<Evaluate,Double>

This class implements the generalized spread metric for two or more dimensions. Reference: A. Zhou, Y. Jin, Q. Zhang, B. Sendhoff, and E. Tsang Combining model-based and genetics-based offspring generation for multi-objective optimization using a convergence criterion, 2006 IEEE Congress on Evolutionary Computation, 2006, pp. 3234-3241.

Author:

Antonio J. Nebro , Juan J. Durillo

Constructor Summary

Constructors

Constructor and Description
GeneralizedSpread(Front referenceParetoFront) Constructor
GeneralizedSpread(String referenceParetoFrontFile) Constructor

Method Summary

Modifier and Type	Method and Description
Double	evaluate(Evaluate solutionList) Evaluate() method
double	generalizedSpread(Front front, Front referenceFront) Calculates the generalized spread metric.
String	getName()

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

getDescription, setDescription, setName, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.uma.jmetal.util.naming.DescribedEntity

getDescription

Constructor Detail

GeneralizedSpread

public GeneralizedSpread(String referenceParetoFrontFile)
                  throws FileNotFoundException

Constructor

Parameters:

referenceParetoFrontFile -

Throws:

FileNotFoundException

GeneralizedSpread

public GeneralizedSpread(Front referenceParetoFront)

Constructor

Parameters:

referenceParetoFront -

Throws:

FileNotFoundException

Method Detail

evaluate

public Double evaluate(Evaluate solutionList)

Evaluate() method

Specified by:

evaluate in interface QualityIndicator<Evaluate extends List<? extends Solution<?>>,Double>

Parameters:

solutionList -

Returns:

generalizedSpread

public double generalizedSpread(Front front,
                                Front referenceFront)

Calculates the generalized spread metric. Given the pareto front, the true pareto front as double [] and the number of objectives, the method return the value for the metric.

Parameters:

front - The front.

referenceFront - The reference pareto front.

Returns:

the value of the generalized spread metric

getName

public String getName()

Specified by:

getName in interface QualityIndicator<Evaluate extends List<? extends Solution<?>>,Double>

Specified by:

getName in interface DescribedEntity

Overrides:

getName in class SimpleDescribedEntity

Returns:

the name of the DescribedEntity