org.uma.jmetal.operator.impl.crossover

Class PMXCrossover

java.lang.Object

org.uma.jmetal.operator.impl.crossover.PMXCrossover

All Implemented Interfaces:

Serializable, CrossoverOperator<PermutationSolution<Integer>>, Operator<List<PermutationSolution<Integer>>,List<PermutationSolution<Integer>>>

public class PMXCrossover
extends Object
implements CrossoverOperator<PermutationSolution<Integer>>

This class allows to apply a PMX crossover operator using two parent solutions.

Author:

Antonio J. Nebro , Juan J. Durillo

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
PMXCrossover(double crossoverProbability) Constructor

Method Summary

Modifier and Type	Method and Description
List<PermutationSolution<Integer>>	doCrossover(double probability, List<PermutationSolution<Integer>> parents) Perform the crossover operation
List<PermutationSolution<Integer>>	execute(List<PermutationSolution<Integer>> parents) Executes the operation
int	getNumberOfParents() Two parents are required to apply this operator.

Methods inherited from class java.lang.Object

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

Constructor Detail

PMXCrossover

public PMXCrossover(double crossoverProbability)

Constructor

Method Detail

execute

public List<PermutationSolution<Integer>> execute(List<PermutationSolution<Integer>> parents)

Executes the operation

Specified by:

execute in interface Operator<List<PermutationSolution<Integer>>,List<PermutationSolution<Integer>>>

Parameters:

parents - An object containing an array of two solutions

doCrossover

public List<PermutationSolution<Integer>> doCrossover(double probability,
                                                      List<PermutationSolution<Integer>> parents)

Perform the crossover operation

Parameters:

probability - Crossover probability

parents - Parents

Returns:

An array containing the two offspring

getNumberOfParents

public int getNumberOfParents()

Two parents are required to apply this operator.

Specified by:

getNumberOfParents in interface CrossoverOperator<PermutationSolution<Integer>>

Returns: