Package org.moeaframework.core.indicator

Class Hypervolume

java.lang.Object

org.moeaframework.core.indicator.Hypervolume

All Implemented Interfaces:

Indicator

public class Hypervolume
extends Object
implements Indicator

Hypervolume indicator. Represents the volume of objective space dominated by solutions in the approximation set. The hypervolume implementation can be configured using the Settings.getHypervolume().

Constructor Summary

Constructors

Constructor	Description
Hypervolume(Problem problem, double[] minimum, double[] maximum)	Constructs a hypervolume evaluator for the specified problem using the given minimum and maximum bounds.
Hypervolume(Problem problem, Normalizer normalizer)	Constructs a hypervolume evaluator with a user-provided normalizer.
Hypervolume(Problem problem, NondominatedPopulation referenceSet)	Constructs a hypervolume evaluator for the specified problem and reference set.
Hypervolume(Problem problem, NondominatedPopulation referenceSet, double[] referencePoint)	Constructs a hypervolume evaluator for the specified problem using the given reference set and reference point.

Method Summary

Modifier and Type	Method	Description
double	evaluate(NondominatedPopulation approximationSet)	Returns the value of this unary quality indicator given the specified non-dominated population.

Methods inherited from class java.lang.Object

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

Constructor Details

Hypervolume

public Hypervolume(Problem problem,
 NondominatedPopulation referenceSet)

Constructs a hypervolume evaluator for the specified problem and reference set. See DefaultNormalizer for details on configuring normalization.

Parameters:

problem - the problem

referenceSet - the reference set

Hypervolume

public Hypervolume(Problem problem,
 NondominatedPopulation referenceSet,
 double[] referencePoint)

Constructs a hypervolume evaluator for the specified problem using the given reference set and reference point.

Parameters:

problem - the problem

referenceSet - the reference set

referencePoint - the reference point

Hypervolume

public Hypervolume(Problem problem,
 double[] minimum,
 double[] maximum)

Constructs a hypervolume evaluator for the specified problem using the given minimum and maximum bounds.

Parameters:

problem - the problem

minimum - the minimum bounds of the set

maximum - the maximum bounds of the set

Hypervolume

public Hypervolume(Problem problem,
 Normalizer normalizer)

Constructs a hypervolume evaluator with a user-provided normalizer.

Parameters:

problem - the problem

normalizer - the user-provided normalizer

Method Details

evaluate

public double evaluate(NondominatedPopulation approximationSet)

Description copied from interface: Indicator

Returns the value of this unary quality indicator given the specified non-dominated population.

Specified by:

evaluate in interface Indicator

Parameters:

approximationSet - the non-dominated population to be evaluated

Returns:

the value of this quality indicator given the specified non-dominated population