org.moeaframework.algorithm
Class GDE3

java.lang.Object
  org.moeaframework.algorithm.AbstractAlgorithm
      org.moeaframework.algorithm.AbstractEvolutionaryAlgorithm
          org.moeaframework.algorithm.GDE3

All Implemented Interfaces:

Algorithm, EvolutionaryAlgorithm

public class GDE3
extends AbstractEvolutionaryAlgorithm

Implementation of the Generalized Differential Evolution (GDE3) algorithm.

References:

1. Kukkonen and Lampinen (2005). "GDE3: The Third Evolution Step of Generalized Differential Evolution." KanGAL Report Number 2005013.

Field Summary

Fields inherited from class org.moeaframework.algorithm.AbstractEvolutionaryAlgorithm

archive, initialization, population

Fields inherited from class org.moeaframework.algorithm.AbstractAlgorithm

initialized, numberOfEvaluations, problem, terminated

Constructor Summary

GDE3(Problem problem, NondominatedSortingPopulation population, DominanceComparator comparator, DifferentialEvolutionSelection selection, DifferentialEvolution variation, Initialization initialization)
Constructs the GDE3 algorithm with the specified components.

Method Summary

NondominatedSortingPopulation	getPopulation() Returns the current population of this evolutionary algorithm.
void	iterate() Performs one iteration of the algorithm.

Methods inherited from class org.moeaframework.algorithm.AbstractEvolutionaryAlgorithm

getArchive, getResult, getState, initialize, setState

Methods inherited from class org.moeaframework.algorithm.AbstractAlgorithm

evaluate, evaluateAll, evaluateAll, finalize, getNumberOfEvaluations, getProblem, isInitialized, isTerminated, step, terminate

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.moeaframework.core.Algorithm

evaluate, getNumberOfEvaluations, getProblem, isTerminated, step, terminate

Constructor Detail

GDE3

public GDE3(Problem problem,
            NondominatedSortingPopulation population,
            DominanceComparator comparator,
            DifferentialEvolutionSelection selection,
            DifferentialEvolution variation,
            Initialization initialization)

Constructs the GDE3 algorithm with the specified components.

Parameters:

problem - the problem being solved

population - the population used to store solutions

comparator - the dominance comparator used to determine if offspring survive until the non-dominated sorting step

selection - the selection operator

variation - the variation operator

initialization - the initialization method

Method Detail

iterate

public void iterate()

Description copied from class: AbstractAlgorithm

Performs one iteration of the algorithm. This method should be overridden by implementations to perform each logical iteration of the algorithm.

Specified by:

iterate in class AbstractAlgorithm

getPopulation

public NondominatedSortingPopulation getPopulation()

Description copied from interface: EvolutionaryAlgorithm

Returns the current population of this evolutionary algorithm.

Specified by:

getPopulation in interface EvolutionaryAlgorithm

Overrides:

getPopulation in class AbstractEvolutionaryAlgorithm

Returns:

the current population of this evolutionary algorithm