Package org.moeaframework.analysis

Class EpsilonHelper

java.lang.Object

org.moeaframework.analysis.EpsilonHelper

public class EpsilonHelper
extends Object

Provides ε values for algorithms using ε-dominance archives on the standard test problems.

Field Summary

Fields

Modifier and Type	Field	Description
static final double	DEFAULT	The default ε value that is returned for any problem without an explicitly configured value.

Method Summary

Modifier and Type	Method	Description
static EpsilonBoxDominanceArchive	convert(Population population, Epsilons epsilons)	Converts the population to an EpsilonBoxDominanceArchive with the given ε values.
static Epsilons	getEpsilons(Problem problem)	Returns the ε value used for the standard problems in sensitivity analysis.

Methods inherited from class java.lang.Object

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

Field Details

DEFAULT

public static final double DEFAULT

The default ε value that is returned for any problem without an explicitly configured value.

See Also:

• Constant Field Values

Method Details

getEpsilons

public static Epsilons getEpsilons(Problem problem)

Returns the ε value used for the standard problems in sensitivity analysis. If the problem is not recognized, the default ε value of 0.01 is returned.

Parameters:

problem - the problem

Returns:

the ε value used for the standard problems in sensitivity analysis

convert

public static EpsilonBoxDominanceArchive convert(Population population,
 Epsilons epsilons)

Converts the population to an EpsilonBoxDominanceArchive with the given ε values. To prevent unnecessary computations, this conversion only occurs if the original population is not an EpsilonBoxDominanceArchive and does not have matching ε values.

Parameters:

population - the population to convert

epsilons - the ε values

Returns:

the population converted to an EpsilonBoxDominanceArchive with the given ε values