org.uma.jmetal.runner.multiobjective.RandomSearchRunner Maven / Gradle / Ivy
package org.uma.jmetal.runner.multiobjective;
import org.uma.jmetal.algorithm.Algorithm;
import org.uma.jmetal.algorithm.multiobjective.randomsearch.RandomSearchBuilder;
import org.uma.jmetal.problem.Problem;
import org.uma.jmetal.runner.AbstractAlgorithmRunner;
import org.uma.jmetal.solution.DoubleSolution;
import org.uma.jmetal.util.AlgorithmRunner;
import org.uma.jmetal.util.JMetalException;
import org.uma.jmetal.util.JMetalLogger;
import org.uma.jmetal.util.ProblemUtils;
import java.io.FileNotFoundException;
import java.util.List;
/**
* Class for configuring and running the random search algorithm
*
* @author Antonio J. Nebro
*/
public class RandomSearchRunner extends AbstractAlgorithmRunner {
/**
* @param args Command line arguments.
* @throws SecurityException
* Invoking command:
java org.uma.jmetal.runner.multiobjective.RandomSearchRunner problemName [referenceFront]
*/
public static void main(String[] args) throws JMetalException, FileNotFoundException {
Problem problem;
Algorithm> algorithm;
String referenceParetoFront = "" ;
String problemName ;
if (args.length == 1) {
problemName = args[0];
} else if (args.length == 2) {
problemName = args[0] ;
referenceParetoFront = args[1] ;
} else {
problemName = "org.uma.jmetal.problem.multiobjective.zdt.ZDT1";
referenceParetoFront = "jmetal-problem/src/test/resources/pareto_fronts/ZDT1.pf" ;
}
problem = ProblemUtils.loadProblem(problemName);
algorithm = new RandomSearchBuilder(problem)
.setMaxEvaluations(2500000)
.build() ;
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) ;
}
}
}
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