Package org.moeaframework.core.comparator

Class EpsilonBoxDominanceComparator

java.lang.Object

org.moeaframework.core.comparator.EpsilonBoxObjectiveComparator

org.moeaframework.core.comparator.EpsilonBoxDominanceComparator

All Implemented Interfaces:

DominanceComparator

public class EpsilonBoxDominanceComparator
extends EpsilonBoxObjectiveComparator

Compares two solutions using aggregate constraint violations and the additive ε-box objective comparator. This is similar to the method used in ParetoDominanceComparator, differing only in the use of ε-box dominance when comparing the objectives.

See Also:

• AggregateConstraintComparator
• EpsilonBoxObjectiveComparator

Field Summary

Fields inherited from class org.moeaframework.core.comparator.EpsilonBoxObjectiveComparator

epsilons, isSameBox

Constructor Summary

Constructors

Constructor	Description
EpsilonBoxDominanceComparator(double epsilon)	Constructs a dominance comparator for comparing solutions first using the AggregateConstraintComparator followed by the EpsilonBoxObjectiveComparator with the specified ε value.
EpsilonBoxDominanceComparator(double[] epsilons)	Constructs a dominance comparator for comparing solutions first using the AggregateConstraintComparator followed by the EpsilonBoxObjectiveComparator with the specified ε values.
EpsilonBoxDominanceComparator(Epsilons epsilons)	Constructs a dominance comparator for comparing solutions first using the AggregateConstraintComparator followed by the EpsilonBoxObjectiveComparator with the specified ε values.

Method Summary

Modifier and Type	Method	Description
int	compare(Solution solution1, Solution solution2)	Compares the two solutions using the additive ε-box dominance relation.

Methods inherited from class org.moeaframework.core.comparator.EpsilonBoxObjectiveComparator

getEpsilons, isSameBox, setSameBox

Methods inherited from class java.lang.Object

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

Constructor Details

EpsilonBoxDominanceComparator

public EpsilonBoxDominanceComparator(double epsilon)

Constructs a dominance comparator for comparing solutions first using the AggregateConstraintComparator followed by the EpsilonBoxObjectiveComparator with the specified ε value.

Parameters:

epsilon - the ε value used by this comparator

EpsilonBoxDominanceComparator

public EpsilonBoxDominanceComparator(double[] epsilons)

Constructs a dominance comparator for comparing solutions first using the AggregateConstraintComparator followed by the EpsilonBoxObjectiveComparator with the specified ε values.

Parameters:

epsilons - the ε values used by this comparator

EpsilonBoxDominanceComparator

public EpsilonBoxDominanceComparator(Epsilons epsilons)

Constructs a dominance comparator for comparing solutions first using the AggregateConstraintComparator followed by the EpsilonBoxObjectiveComparator with the specified ε values.

Parameters:

epsilons - the ε values used by this comparator

Method Details

compare

public int compare(Solution solution1,
 Solution solution2)

Description copied from class: EpsilonBoxObjectiveComparator

Compares the two solutions using the additive ε-box dominance relation.

Specified by:

compare in interface DominanceComparator

Overrides:

compare in class EpsilonBoxObjectiveComparator

Parameters:

solution1 - the first solution

solution2 - the second solution

Returns:

-1 if solution1 dominates solution2, 1 if solution2 dominates solution1, and 0 if the solutions are non-dominated