abstractagent.java

用java实现的改进粒子群算法

/**
 * Description: The description of social cognitive agent.
 *
 * @Information source: a) external library (L); b) the own memory: a point that
 * generated in the last learning cycle
 *
 * @Coefficients: TaoB and TaoW
 *
 * @ Author        Create/Modi     Note
 * Xiaofeng Xie    Mar 11, 2003
 * Xiaofeng Xie    May 11, 2004
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * Please acknowledge the author(s) if you use this code in any way.
 *
 * @version 1.0
 * @Since MAOS1.0
 *
 * @References:
 * [1] Xie X F, Zhang W J. Solving engineering design problems by social cognitive
 * optimization. Genetic and Evolutionary Computation Conference, 2004
 */
package agent;

import knowledge.*;
import goodness.*;
import problem.*;
import space.*;

abstract public class AbstractAgent {

  //Describes the problem to be solved
  protected ProblemEncoder problemEncoder;
  //Forms the goodness landscape
  protected IGoodnessCompareEngine specComparator;

  //store the point that generated in current learning cycle
  protected SearchPoint trailPoint;

  public void setProblemEncoder(ProblemEncoder encoder) {
    problemEncoder = encoder;
    trailPoint = problemEncoder.getEncodedSearchPoint();
  }

  public void setSpecComparator(IGoodnessCompareEngine comparer) {
    specComparator = comparer;
  }

  public SearchPoint generatePoint(int t) {
    generatePoint(trailPoint, t);
    //evalute into goodness information
    problemEncoder.evaluate(trailPoint);
    return trailPoint;
  }

  abstract protected void generatePoint(ILocationEngine tempPoint, int t);

  abstract public void updateInfo();
}