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Implemented lookup for selection/mutation/crossover

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Implemented GeneticAlgorithm setup.
This commit is contained in:
Fabian Becker 2014-01-23 21:10:38 +01:00
parent 584adb91dc
commit 8bc1b0141d
1 changed files with 164 additions and 16 deletions
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180
src/eva2/cli/Main.java
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@ -8,6 +8,7 @@ import eva2.optimization.go.InterfacePopulationChangedEventListener;
import eva2.optimization.modules.OptimizationParameters;
import eva2.optimization.operator.crossover.InterfaceCrossover;
import eva2.optimization.operator.mutation.InterfaceMutation;
import eva2.optimization.operator.selection.InterfaceSelection;
import eva2.optimization.operator.terminators.CombinedTerminator;
import eva2.optimization.operator.terminators.FitnessValueTerminator;
import eva2.optimization.population.Population;
@ -56,6 +57,7 @@ public class Main implements OptimizationStateListener, InterfacePopulationChang
private InterfaceOptimizer optimizer;
private InterfaceMutation mutator;
private InterfaceCrossover crossover;
private InterfaceSelection selection;
private JsonObject jsonObject;
private JsonArray optimizationRuns;
@ -107,17 +109,17 @@ public class Main implements OptimizationStateListener, InterfacePopulationChang
@Override
public void performedStop() {
//To change body of implemented methods use File | Settings | File Templates.
LOGGER.info("Optimization stopped.");
}
@Override
public void performedStart(String infoString) {
//To change body of implemented methods use File | Settings | File Templates.
LOGGER.info("Optimization started.");
}
@Override
public void performedRestart(String infoString) {
//To change body of implemented methods use File | Settings | File Templates.
LOGGER.info("Optimization restarted.");
}
@Override
@ -171,9 +173,53 @@ public class Main implements OptimizationStateListener, InterfacePopulationChang
return problemList;
}
public static Map<String, Class<? extends InterfaceMutation>> createMutatorList() {
Map<String, Class<? extends InterfaceMutation>> mutationList = new TreeMap<String, Class<? extends InterfaceMutation>>();
Reflections reflections = new Reflections("eva2.optimization.operator.mutation");
Set<Class<? extends InterfaceMutation>> mutators = reflections.getSubTypesOf(InterfaceMutation.class);
for (Class<? extends InterfaceMutation> mutator : mutators) {
// We only want instantiable classes
if (mutator.isInterface() || Modifier.isAbstract(mutator.getModifiers())) {
continue;
}
mutationList.put(mutator.getSimpleName(), mutator);
}
return mutationList;
}
public static Map<String, Class<? extends InterfaceCrossover>> createCrossoverList() {
Map<String, Class<? extends InterfaceCrossover>> crossoverList = new TreeMap<String, Class<? extends InterfaceCrossover>>();
Reflections reflections = new Reflections("eva2.optimization.operator.crossover");
Set<Class<? extends InterfaceCrossover>> crossovers = reflections.getSubTypesOf(InterfaceCrossover.class);
for (Class<? extends InterfaceCrossover> crossover : crossovers) {
// We only want instantiable classes
if (crossover.isInterface() || Modifier.isAbstract(crossover.getModifiers())) {
continue;
}
crossoverList.put(crossover.getSimpleName(), crossover);
}
return crossoverList;
}
public static Map<String, Class<? extends InterfaceSelection>> createSelectionList() {
Map<String, Class<? extends InterfaceSelection>> selectionList = new TreeMap<String, Class<? extends InterfaceSelection>>();
Reflections reflections = new Reflections("eva2.optimization.operator.selection");
Set<Class<? extends InterfaceSelection>> selections = reflections.getSubTypesOf(InterfaceSelection.class);
for (Class<? extends InterfaceSelection> selection : selections) {
// We only want instantiable classes
if (selection.isInterface() || Modifier.isAbstract(selection.getModifiers())) {
continue;
}
selectionList.put(selection.getSimpleName(), selection);
}
return selectionList;
}
public static void showHelp(Options options) {
HelpFormatter helpFormatter = new HelpFormatter();
helpFormatter.printHelp("eva2", "", options, "", true);
helpFormatter.printHelp("java -jar EvA2.jar", "Global Parameters", options, "", true);
}
public static void main(String[] args) {
@ -221,16 +267,20 @@ public class Main implements OptimizationStateListener, InterfacePopulationChang
*/
if (commandLine.hasOption("help")) {
String helpOption = commandLine.getOptionValue("help");
switch (helpOption) {
case "optimizer":
showOptimizerHelp();
break;
case "problem":
listProblems();
break;
default:
showHelp(defaultOptions);
break;
if (helpOption == null) {
showHelp(defaultOptions);
} else {
switch (helpOption) {
case "optimizer":
showOptimizerHelp();
break;
case "problem":
listProblems();
break;
default:
showHelp(defaultOptions);
break;
}
}
System.exit(0);
@ -254,6 +304,37 @@ public class Main implements OptimizationStateListener, InterfacePopulationChang
setProblemFromName(problemName);
}
if (commandLine.hasOption("mutator")) {
String mutatorName = commandLine.getOptionValue("mutator");
try {
setMutatorFromName(mutatorName);
} catch (Exception ex) {
System.out.println(ex.getMessage());
System.exit(-1);
}
}
if (commandLine.hasOption("crossover")) {
String crossoverName = commandLine.getOptionValue("crossover");
try {
setCrossoverFromName(crossoverName);
} catch (Exception ex) {
System.out.println(ex.getMessage());
System.exit(-1);
}
}
if (commandLine.hasOption("selection")) {
String selectionName = commandLine.getOptionValue("selection");
try {
setSelectionFromName(selectionName);
} catch (Exception ex) {
System.out.println(ex.getMessage());
System.exit(-1);
}
}
// Depends on mutator/crossover/selection being set
if (commandLine.hasOption("optimizer")) {
String optimizerName = commandLine.getOptionValue("optimizer");
try {
@ -274,6 +355,45 @@ public class Main implements OptimizationStateListener, InterfacePopulationChang
this.jsonObject.add("problem", problemObject);
}
private void setMutatorFromName(String mutatorName) {
Map<String, Class<? extends InterfaceMutation>> mutatorList = createMutatorList();
Class<? extends InterfaceMutation> mutator = mutatorList.get(mutatorName);
try {
this.mutator = mutator.newInstance();
} catch (InstantiationException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
}
private void setCrossoverFromName(String crossoverName) {
Map<String, Class<? extends InterfaceCrossover>> crossoverList = createCrossoverList();
Class<? extends InterfaceCrossover> crossover = crossoverList.get(crossoverName);
try {
this.crossover = crossover.newInstance();
} catch (InstantiationException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
}
private void setSelectionFromName(String selectionName) {
Map<String, Class<? extends InterfaceSelection>> selectionList = createSelectionList();
Class<? extends InterfaceSelection> selection = selectionList.get(selectionName);
try {
this.selection = selection.newInstance();
} catch (InstantiationException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
}
/**
* This method will create the various optimizers that are supported on the CLI.
* It's a really messy process since neither Java nor args4j/apache-cli can handle
@ -327,9 +447,33 @@ public class Main implements OptimizationStateListener, InterfacePopulationChang
break;
}
case "GeneticAlgorithm":
case "GeneticAlgorithm": {
System.out.println("Genetic Algorithm");
double pm = 0.01, pc = 0.5;
opt.addOption("pm", true, "Mutation Probability");
opt.addOption("pc", true, "Crossover Probability");
/**
* Parse default options.
*/
try {
commandLine = cliParser.parse(opt, optimizerParams);
} catch (ParseException e) {
showHelp(opt);
System.exit(-1);
}
if (commandLine.hasOption("pm")) {
pm = Double.parseDouble(commandLine.getOptionValue("pm"));
}
if (commandLine.hasOption("pc")) {
pc = Double.parseDouble(commandLine.getOptionValue("pc"));
}
this.optimizer = OptimizerFactory.createGeneticAlgorithm(mutator, pm, crossover, pc, selection, this.populationSize, this.problem, this);
break;
}
case "ParticleSwarmOptimization": {
opt.addOption("initialVelocity", true, "Initial Velocity");
opt.addOption("speedLimit", true, "Speed Limit");
@ -367,6 +511,10 @@ public class Main implements OptimizationStateListener, InterfacePopulationChang
}
}
/**
* Executes the optimization and outputs a JSON document to the command line
* with the statistics of the optimization run(s).
*/
private void runOptimization() {
for(int i = 0; i < this.numberOfRuns; i++) {
// Terminate after 10000 function evaluations OR after reaching a fitness < 0.1
@ -375,7 +523,7 @@ public class Main implements OptimizationStateListener, InterfacePopulationChang
LOGGER.log(Level.INFO, "Running {0}", optimizer.getName());
OptimizationParameters params = OptimizerFactory.makeParams(optimizer, this.populationSize, this.problem);
OptimizationParameters params = OptimizerFactory.makeParams(optimizer, this.populationSize, this.problem, this.seed, OptimizerFactory.getTerminator());
double[] result = OptimizerFactory.optimizeToDouble(params);
JsonObject optimizationDetails = new JsonObject();