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

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

Method Summary

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 Detail

AdditiveEpsilonIndicatorFitnessEvaluator

public AdditiveEpsilonIndicatorFitnessEvaluator(Problem problem)

Constructs an additive ε-indicator fitness evaluator.

Parameters:

problem - the problem

Method Detail

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