org.uma.jmetal.qualityindicator.impl

Class GeneralizedSpread

java.lang.Object

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

org.uma.jmetal.qualityindicator.impl.GeneralizedSpread

All Implemented Interfaces:

Serializable, QualityIndicator, DescribedEntity

public class GeneralizedSpread
extends SimpleDescribedEntity
implements QualityIndicator

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.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
GeneralizedSpread() Constructor Creates a new instance of GeneralizedSpread

Method Summary

Modifier and Type	Method and Description
double	execute(Front paretoFrontApproximation, Front trueParetoFront)
double	execute(List<? extends Solution> paretoFrontApproximation, List<? extends Solution> trueParetoFront)
double	generalizedSpread(Front paretoFront, Front paretoTrueFront) 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()

Constructor Creates a new instance of GeneralizedSpread

Method Detail

execute

public double execute(Front paretoFrontApproximation,
                      Front trueParetoFront)

Specified by:

execute in interface QualityIndicator

execute

public double execute(List<? extends Solution> paretoFrontApproximation,
                      List<? extends Solution> trueParetoFront)

Specified by:

execute in interface QualityIndicator

generalizedSpread

public double generalizedSpread(Front paretoFront,
                                Front paretoTrueFront)

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:

paretoFront - The pareto front.

paretoTrueFront - The true pareto front.

Returns:

the value of the generalized spread metric

getName

public String getName()

Specified by:

getName in interface QualityIndicator

Specified by:

getName in interface DescribedEntity

Overrides:

getName in class SimpleDescribedEntity

Returns:

the name of the DescribedEntity