Package ch.idsia.scenarios

Source Code of ch.idsia.scenarios.EvolveIncrementally

package ch.idsia.scenarios;

import wox.serial.Easy;
import ch.idsia.ai.Evolvable;
import ch.idsia.ai.agents.Agent;
import ch.idsia.ai.agents.RegisterableAgent;
import ch.idsia.ai.agents.ai.SimpleMLPAgent;
import ch.idsia.ai.ea.ES;
import ch.idsia.ai.tasks.MultiSeedProgressTask;
import ch.idsia.tools.CmdLineOptions;
import ch.idsia.tools.EvaluationOptions;

/**
* Created by IntelliJ IDEA.
* User: julian
* Date: May 4, 2009
* Time: 4:33:25 PM
*/
public class EvolveIncrementally {

    final static int generations = 100;
    final static int populationSize = 100;


    public static void main(String[] args) {
        EvaluationOptions options = new CmdLineOptions(new String[0]);
        options.setMaxAttempts(1);
        options.setPauseWorld(true);
        Evolvable initial = new SimpleMLPAgent();
        if (args.length > 0) {
            initial = (Evolvable) RegisterableAgent.load (args[0]);           
        }
        RegisterableAgent.registerAgent ((Agent) initial);
        for (int difficulty = 0; difficulty < 11; difficulty++)
        {
            System.out.println("New EvolveIncrementally phase with difficulty = " + difficulty + " started.");
            options.setLevelDifficulty(difficulty);
            options.setMaxFPS(true);
            options.setVisualization(false);
            //Task task = new ProgressTask(options);
            MultiSeedProgressTask task = new MultiSeedProgressTask(options);
            task.setNumberOfSeeds(3);
            task.setStartingSeed(0);
            ES es = new ES (task, initial, populationSize);
            System.out.println("Evolving " + initial + " with task " + task);
            for (int gen = 0; gen < generations; gen++) {
                es.nextGeneration();
                double bestResult = es.getBestFitnesses()[0];
                System.out.println("Generation " + gen + " best " + bestResult);
                options.setVisualization(gen % 5 == 0 || bestResult > 4000);
                options.setMaxFPS(true);
                Agent a = (Agent) es.getBests()[0];
                a.setName(((Agent)initial).getName() + gen);
                RegisterableAgent.registerAgent(a);
                double result = task.evaluate(a)[0];
                options.setVisualization(false);
                options.setMaxFPS(true);
                Easy.save (es.getBests()[0], "evolved.xml");
                if (result > 4000) {
                    initial = es.getBests()[0];
                    break; // Go to next difficulty.
                }
            }
        }
        System.exit(0);
    }
}
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