org.uma.jmetal.runner.multiobjective.WASFGARunner Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of jmetal-exec Show documentation
Runners classes
There is a newer version: 5.9
package org.uma.jmetal.runner.multiobjective;

import org.uma.jmetal.algorithm.Algorithm;
import org.uma.jmetal.algorithm.multiobjective.wasfga.WASFGA;
import org.uma.jmetal.operator.CrossoverOperator;
import org.uma.jmetal.operator.MutationOperator;
import org.uma.jmetal.operator.SelectionOperator;
import org.uma.jmetal.operator.impl.crossover.PMXCrossover;
import org.uma.jmetal.operator.impl.mutation.PermutationSwapMutation;
import org.uma.jmetal.operator.impl.selection.BinaryTournamentSelection;
import org.uma.jmetal.problem.PermutationProblem;
import org.uma.jmetal.problem.multiobjective.MultiobjectiveTSP;
import org.uma.jmetal.solution.PermutationSolution;
import org.uma.jmetal.util.AbstractAlgorithmRunner;
import org.uma.jmetal.util.AlgorithmRunner;
import org.uma.jmetal.util.JMetalException;
import org.uma.jmetal.util.JMetalLogger;
import org.uma.jmetal.util.comparator.RankingAndCrowdingDistanceComparator;
import org.uma.jmetal.util.evaluator.impl.SequentialSolutionListEvaluator;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

public class WASFGARunner extends AbstractAlgorithmRunner {
  /**
   * @param args Command line arguments.
   * @throws JMetalException
   * @throws FileNotFoundException
   * Invoking command:
  java org.uma.jmetal.runner.multiobjective.WASFGABinaryRunner problemName [referenceFront]
   */
  public static void main(String[] args) throws JMetalException, IOException {
    /*Problem problem;
    PermutationProblem> problem;
    Algorithm> algorithm;
    CrossoverOperator crossover;
    MutationOperator mutation;
    SelectionOperator, DoubleSolution> selection;*/
    Algorithm>> algorithm;
    PermutationProblem> problem;
    CrossoverOperator> crossover;
    MutationOperator> mutation;
    SelectionOperator>, PermutationSolution> selection;

    problem = new MultiobjectiveTSP("/tspInstances/kroA100.tsp", "/tspInstances/kroB100.tsp");

    crossover = new PMXCrossover(0.9) ;

    double mutationProbability = 0.2 ;
    mutation = new PermutationSwapMutation(mutationProbability) ;

    selection = new BinaryTournamentSelection>(new RankingAndCrowdingDistanceComparator>());
    String referenceParetoFront = "" ;
    List referencePoint = null;

    //problem = ProblemUtils. loadProblem(problemName);
    problem = new MultiobjectiveTSP("/tspInstances/kroA100.tsp", "/tspInstances/kroB100.tsp");

    referencePoint = new ArrayList<>();
    referencePoint.add(0.0);
    referencePoint.add(0.0);
/*
    double crossoverProbability = 0.9 ;
    double crossoverDistributionIndex = 20.0 ;
    crossover = new SBXCrossover(crossoverProbability, crossoverDistributionIndex) ;

    double mutationProbability = 1.0 / problem.getNumberOfVariables() ;
    double mutationDistributionIndex = 20.0 ;
    mutation = new PolynomialMutation(mutationProbability, mutationDistributionIndex) ;

    selection = new BinaryTournamentSelection(new RankingAndCrowdingDistanceComparator());*/

double epsilon = 0.01 ;
    algorithm = new WASFGA>(problem, 100, 250, crossover, mutation, selection,
            new SequentialSolutionListEvaluator>(),epsilon, referencePoint) ;

    AlgorithmRunner algorithmRunner = new AlgorithmRunner.Executor(algorithm)
            .execute() ;

    List> population = algorithm.getResult() ;
    long computingTime = algorithmRunner.getComputingTime() ;

    JMetalLogger.logger.info("Total execution time: " + computingTime + "ms");

    printFinalSolutionSet(population);
    if (!referenceParetoFront.equals("")) {
      printQualityIndicators(population, referenceParetoFront) ;
    }
  }
}