arrayselectionalgorithm.java

来自「遗传算法源代码,实现了选择操作、交叉操作和变异操作」· Java 代码 · 共 59 行

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/**
 * ArraySelectionAlgorithm Class
 *
 * location: net.openai.ai.ga.selection.ArraySelectionAlgorithm
 *
 */
package net.openai.ai.ga.selection;

import net.openai.ai.ga.population.*;

/**
 * <code>ArraySelectionAlgorithm</code> is a method by which <code>
 * Population</code> members are created and chosen from a
 * <code>Population</code>. This algorithm is used for the selection of
 * parents for recombination (reproduction).
 *
 * @author	Jared Grubb
 * @version	%I%, %G%
 * @since	JDK1.3
 */
public interface ArraySelectionAlgorithm {
    /**
     * Creates a <code>PopulationArray</code> according to a given algorithm
     * or rule. The initial <code>Population</code> is passed and a selection
     * from it is chosen and returned.
     *
     * <p>This function is passed a shallow clone of the original population,
     * therefore allowing additions and deletions to the passed population
     * without worry about how it affects the original. Any changes meant for
     * the original <code>Population</code> should be handled through the
     * recombination and survival implementations of this algorithm.
     *
     * <p>The returned <code>PopulationArray</code> should not be considered
     * crucial to any internal functions of this implementation of the <code>
     * ArraySelectionAlgorithm</code>, since the genetic algorithm may make
     * changes directly onto this structure and may make the structure
     * available for others to make changes to. If the structure is needed
     * internally and such behavior could be detrimental to this
     * implementation's function, then it is recommended that a shallow
     * clone be returned via a <code>return new
     * PopulationArray(returnPopulationArray)</code> rather than a plain
     * <code>return returnPopulationArray</code>. This allows for this
     * additional overhead to be avoided in cases where it not needed.
     *
     * @param pop  the <code>Population</code> to choose from
     * @return a <code>PopulationArray</code> derived from the passed
     * 		<code>Population</code>
     *
     */
    public PopulationArray selectFromPopulation(Population pop);
}



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