Package org.moeaframework.core.fitness

Class AdditiveEpsilonIndicatorFitnessEvaluator

java.lang.Object

org.moeaframework.core.fitness.IndicatorFitnessEvaluator

org.moeaframework.core.fitness.AdditiveEpsilonIndicatorFitnessEvaluator

All Implemented Interfaces:

FitnessEvaluator

public class AdditiveEpsilonIndicatorFitnessEvaluator
extends IndicatorFitnessEvaluator

Indicator-based fitness using the additive ε-indicator.

Field Summary

Fields inherited from interface org.moeaframework.core.FitnessEvaluator

FITNESS_ATTRIBUTE

Constructor Summary

Constructors

Constructor	Description
AdditiveEpsilonIndicatorFitnessEvaluator(Problem problem)	Constructs an additive ε-indicator fitness evaluator.

Method Summary

Modifier and Type	Method	Description
boolean	areLargerValuesPreferred()	Returns true if larger fitness values are preferred; otherwise smaller fitness values are preferred.
protected double	calculateIndicator(Solution solution1, Solution solution2)	Returns the indicator value relative to the two solutions.

Methods inherited from class org.moeaframework.core.fitness.IndicatorFitnessEvaluator

evaluate, getProblem, removeAndUpdate

Methods inherited from class java.lang.Object

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

Constructor Details

AdditiveEpsilonIndicatorFitnessEvaluator

public AdditiveEpsilonIndicatorFitnessEvaluator(Problem problem)

Constructs an additive ε-indicator fitness evaluator.

Parameters:

problem - the problem

Method Details

calculateIndicator

protected double calculateIndicator(Solution solution1,
 Solution solution2)

Description copied from class: IndicatorFitnessEvaluator

Returns the indicator value relative to the two solutions.

Specified by:

calculateIndicator in class IndicatorFitnessEvaluator

Parameters:

solution1 - the first solution

solution2 - the second solution

Returns:

the indicator value relative to the two solutions

areLargerValuesPreferred

public boolean areLargerValuesPreferred()

Description copied from interface: FitnessEvaluator

Returns true if larger fitness values are preferred; otherwise smaller fitness values are preferred.

Returns:

true if larger fitness values are preferred; otherwise smaller fitness values are preferred