org.moeaframework.core
Interface FitnessEvaluator

All Known Implementing Classes:

AdditiveEpsilonIndicatorFitnessEvaluator, CrowdingDistanceFitnessEvaluator, HypervolumeContributionFitnessEvaluator, HypervolumeFitnessEvaluator, IndicatorFitnessEvaluator, SPEA2.StrengthFitnessEvaluator

public interface FitnessEvaluator

Evaluates a population and assigns fitness values to its solutions. This class is intended to be used by indicator-based algorithms.

Field Summary

static String

FITNESS_ATTRIBUTE Attribute key for the fitness of a solution.

Method Summary

boolean	areLargerValuesPreferred() Returns true if larger fitness values are preferred; otherwise smaller fitness values are preferred.
void	evaluate(Population population) Evaluates the solutions in the specified population assigning the FITNESS_ATTRIBUTE attribute.

Field Detail

FITNESS_ATTRIBUTE

static final String FITNESS_ATTRIBUTE

Attribute key for the fitness of a solution.

See Also:

Constant Field Values

Method Detail

evaluate

void evaluate(Population population)

Evaluates the solutions in the specified population assigning the FITNESS_ATTRIBUTE attribute.

Parameters:

population - the population to be evaluated

areLargerValuesPreferred

boolean areLargerValuesPreferred()

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