edu.udo.cs.yale.operator.features.weighting
Class WeightingCrossover

java.lang.Object
  edu.udo.cs.yale.operator.features.weighting.WeightingCrossover

All Implemented Interfaces:

PopulationOperator

public class WeightingCrossover
extends java.lang.Object
implements PopulationOperator

Crossover operator for the used weights of example sets. An example set is selected with a given fixed propability and a mating partner is determined randomly. Crossover can be either one point, uniform, or shuffle. Only useful if all example sets have the same attributes and do not contain value series.

Version:

$Id: WeightingCrossover.java,v 1.15 2006/04/14 07:47:17 ingomierswa Exp $

Author:

Ingo Mierswa

Field Summary

private double	prob
private java.util.Random	random
private int	type

Constructor Summary

WeightingCrossover(int type, double prob, java.util.Random random)

Method Summary

void	crossover(AttributeWeightedExampleSet es1, AttributeWeightedExampleSet es2)
void	operate(Population population) Modifies the population.
boolean	performOperation(int generation) The default implementation returns true for every generation.
private void	swapWeights(AttributeWeightedExampleSet es1, AttributeWeightedExampleSet es2, boolean[] swap)

Methods inherited from class java.lang.Object

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

Field Detail

type

private int type

prob

private double prob

random

private java.util.Random random

Constructor Detail

WeightingCrossover

public WeightingCrossover(int type,
                          double prob,
                          java.util.Random random)

Method Detail

performOperation

public boolean performOperation(int generation)

The default implementation returns true for every generation.

Specified by:

performOperation in interface PopulationOperator

crossover

public void crossover(AttributeWeightedExampleSet es1,
                      AttributeWeightedExampleSet es2)

swapWeights

private void swapWeights(AttributeWeightedExampleSet es1,
                         AttributeWeightedExampleSet es2,
                         boolean[] swap)

operate

public void operate(Population population)

Description copied from interface: PopulationOperator

Modifies the population.

Specified by:

operate in interface PopulationOperator