#region License Information
/* HeuristicLab
* Copyright (C) 2002-2010 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
*
* This file is part of HeuristicLab.
*
* HeuristicLab is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* HeuristicLab 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with HeuristicLab. If not, see .
*/
#endregion
using System;
using System.Collections.Generic;
using System.Linq;
using HeuristicLab.Common;
using HeuristicLab.Core;
using HeuristicLab.Data;
using HeuristicLab.Operators;
using HeuristicLab.Optimization;
using HeuristicLab.Optimization.Operators;
using HeuristicLab.Parameters;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
using HeuristicLab.PluginInfrastructure;
using HeuristicLab.Random;
using HeuristicLab.Selection;
namespace HeuristicLab.Algorithms.OffspringSelectionGeneticAlgorithm {
///
/// An offspring selection island genetic algorithm.
///
[Item("Island Offspring Selection Genetic Algorithm", "An island offspring selection genetic algorithm.")]
[Creatable("Algorithms")]
[StorableClass]
public sealed class IslandOffspringSelectionGeneticAlgorithm : EngineAlgorithm {
#region Problem Properties
public override Type ProblemType {
get { return typeof(ISingleObjectiveProblem); }
}
public new ISingleObjectiveProblem Problem {
get { return (ISingleObjectiveProblem)base.Problem; }
set { base.Problem = value; }
}
#endregion
#region Parameter Properties
private ValueParameter SeedParameter {
get { return (ValueParameter)Parameters["Seed"]; }
}
private ValueParameter SetSeedRandomlyParameter {
get { return (ValueParameter)Parameters["SetSeedRandomly"]; }
}
private ValueParameter NumberOfIslandsParameter {
get { return (ValueParameter)Parameters["NumberOfIslands"]; }
}
private ValueParameter MigrationIntervalParameter {
get { return (ValueParameter)Parameters["MigrationInterval"]; }
}
private ValueParameter MigrationRateParameter {
get { return (ValueParameter)Parameters["MigrationRate"]; }
}
private ConstrainedValueParameter MigratorParameter {
get { return (ConstrainedValueParameter)Parameters["Migrator"]; }
}
private ConstrainedValueParameter EmigrantsSelectorParameter {
get { return (ConstrainedValueParameter)Parameters["EmigrantsSelector"]; }
}
private ConstrainedValueParameter ImmigrationReplacerParameter {
get { return (ConstrainedValueParameter)Parameters["ImmigrationReplacer"]; }
}
private ValueParameter PopulationSizeParameter {
get { return (ValueParameter)Parameters["PopulationSize"]; }
}
private ValueParameter MaximumGenerationsParameter {
get { return (ValueParameter)Parameters["MaximumGenerations"]; }
}
private ConstrainedValueParameter SelectorParameter {
get { return (ConstrainedValueParameter)Parameters["Selector"]; }
}
private ConstrainedValueParameter CrossoverParameter {
get { return (ConstrainedValueParameter)Parameters["Crossover"]; }
}
private ValueParameter MutationProbabilityParameter {
get { return (ValueParameter)Parameters["MutationProbability"]; }
}
private OptionalConstrainedValueParameter MutatorParameter {
get { return (OptionalConstrainedValueParameter)Parameters["Mutator"]; }
}
private ValueParameter ElitesParameter {
get { return (ValueParameter)Parameters["Elites"]; }
}
private ValueParameter ParallelParameter {
get { return (ValueParameter)Parameters["Parallel"]; }
}
private ValueLookupParameter SuccessRatioParameter {
get { return (ValueLookupParameter)Parameters["SuccessRatio"]; }
}
private ValueLookupParameter ComparisonFactorLowerBoundParameter {
get { return (ValueLookupParameter)Parameters["ComparisonFactorLowerBound"]; }
}
private ValueLookupParameter ComparisonFactorUpperBoundParameter {
get { return (ValueLookupParameter)Parameters["ComparisonFactorUpperBound"]; }
}
private OptionalConstrainedValueParameter ComparisonFactorModifierParameter {
get { return (OptionalConstrainedValueParameter)Parameters["ComparisonFactorModifier"]; }
}
private ValueLookupParameter MaximumSelectionPressureParameter {
get { return (ValueLookupParameter)Parameters["MaximumSelectionPressure"]; }
}
private ValueLookupParameter OffspringSelectionBeforeMutationParameter {
get { return (ValueLookupParameter)Parameters["OffspringSelectionBeforeMutation"]; }
}
#endregion
#region Properties
public IntValue Seed {
get { return SeedParameter.Value; }
set { SeedParameter.Value = value; }
}
public BoolValue SetSeedRandomly {
get { return SetSeedRandomlyParameter.Value; }
set { SetSeedRandomlyParameter.Value = value; }
}
public IntValue NumberOfIslands {
get { return NumberOfIslandsParameter.Value; }
set { NumberOfIslandsParameter.Value = value; }
}
public IntValue MigrationInterval {
get { return MigrationIntervalParameter.Value; }
set { MigrationIntervalParameter.Value = value; }
}
public PercentValue MigrationRate {
get { return MigrationRateParameter.Value; }
set { MigrationRateParameter.Value = value; }
}
public IMigrator Migrator {
get { return MigratorParameter.Value; }
set { MigratorParameter.Value = value; }
}
public ISelector EmigrantsSelector {
get { return EmigrantsSelectorParameter.Value; }
set { EmigrantsSelectorParameter.Value = value; }
}
public IReplacer ImmigrationReplacer {
get { return ImmigrationReplacerParameter.Value; }
set { ImmigrationReplacerParameter.Value = value; }
}
public IntValue PopulationSize {
get { return PopulationSizeParameter.Value; }
set { PopulationSizeParameter.Value = value; }
}
public IntValue MaximumGenerations {
get { return MaximumGenerationsParameter.Value; }
set { MaximumGenerationsParameter.Value = value; }
}
public ISelector Selector {
get { return SelectorParameter.Value; }
set { SelectorParameter.Value = value; }
}
public ICrossover Crossover {
get { return CrossoverParameter.Value; }
set { CrossoverParameter.Value = value; }
}
public PercentValue MutationProbability {
get { return MutationProbabilityParameter.Value; }
set { MutationProbabilityParameter.Value = value; }
}
public IManipulator Mutator {
get { return MutatorParameter.Value; }
set { MutatorParameter.Value = value; }
}
public IntValue Elites {
get { return ElitesParameter.Value; }
set { ElitesParameter.Value = value; }
}
public BoolValue Parallel {
get { return ParallelParameter.Value; }
set { ParallelParameter.Value = value; }
}
private DoubleValue SuccessRatio {
get { return SuccessRatioParameter.Value; }
set { SuccessRatioParameter.Value = value; }
}
private DoubleValue ComparisonFactorLowerBound {
get { return ComparisonFactorLowerBoundParameter.Value; }
set { ComparisonFactorLowerBoundParameter.Value = value; }
}
private DoubleValue ComparisonFactorUpperBound {
get { return ComparisonFactorUpperBoundParameter.Value; }
set { ComparisonFactorUpperBoundParameter.Value = value; }
}
private IDiscreteDoubleValueModifier ComparisonFactorModifier {
get { return ComparisonFactorModifierParameter.Value; }
set { ComparisonFactorModifierParameter.Value = value; }
}
private DoubleValue MaximumSelectionPressure {
get { return MaximumSelectionPressureParameter.Value; }
set { MaximumSelectionPressureParameter.Value = value; }
}
private BoolValue OffspringSelectionBeforeMutation {
get { return OffspringSelectionBeforeMutationParameter.Value; }
set { OffspringSelectionBeforeMutationParameter.Value = value; }
}
private List selectors;
private IEnumerable Selectors {
get { return selectors; }
}
private List comparisonFactorModifiers;
private List emigrantsSelectors;
private List immigrationReplacers;
private List migrators;
private RandomCreator RandomCreator {
get { return (RandomCreator)OperatorGraph.InitialOperator; }
}
private UniformSubScopesProcessor IslandProcessor {
get { return ((RandomCreator.Successor as SubScopesCreator).Successor as UniformSubScopesProcessor); }
}
private SolutionsCreator SolutionsCreator {
get { return (SolutionsCreator)IslandProcessor.Operator; }
}
private IslandOffspringSelectionGeneticAlgorithmMainLoop MainLoop {
get { return (IslandOffspringSelectionGeneticAlgorithmMainLoop)IslandProcessor.Successor; }
}
#endregion
[StorableConstructor]
private IslandOffspringSelectionGeneticAlgorithm(bool deserializing) : base(deserializing) { }
public IslandOffspringSelectionGeneticAlgorithm()
: base() {
Parameters.Add(new ValueParameter("Seed", "The random seed used to initialize the new pseudo random number generator.", new IntValue(0)));
Parameters.Add(new ValueParameter("SetSeedRandomly", "True if the random seed should be set to a random value, otherwise false.", new BoolValue(true)));
Parameters.Add(new ValueParameter("NumberOfIslands", "The number of islands.", new IntValue(5)));
Parameters.Add(new ValueParameter("MigrationInterval", "The number of generations that should pass between migration phases.", new IntValue(20)));
Parameters.Add(new ValueParameter("MigrationRate", "The proportion of individuals that should migrate between the islands.", new PercentValue(0.15)));
Parameters.Add(new ConstrainedValueParameter("Migrator", "The migration strategy."));
Parameters.Add(new ConstrainedValueParameter("EmigrantsSelector", "Selects the individuals that will be migrated."));
Parameters.Add(new ConstrainedValueParameter("ImmigrationReplacer", "Selects the population from the unification of the original population and the immigrants."));
Parameters.Add(new ValueParameter("PopulationSize", "The size of the population of solutions of each island.", new IntValue(100)));
Parameters.Add(new ValueParameter("MaximumGenerations", "The maximum number of generations that should be processed.", new IntValue(100)));
Parameters.Add(new ConstrainedValueParameter("Selector", "The operator used to select solutions for reproduction."));
Parameters.Add(new ConstrainedValueParameter("Crossover", "The operator used to cross solutions."));
Parameters.Add(new ValueParameter("MutationProbability", "The probability that the mutation operator is applied on a solution.", new PercentValue(0.05)));
Parameters.Add(new OptionalConstrainedValueParameter("Mutator", "The operator used to mutate solutions."));
Parameters.Add(new ValueParameter("Elites", "The numer of elite solutions which are kept in each generation.", new IntValue(1)));
Parameters.Add(new ValueParameter("Parallel", "True if the islands should be run in parallel (also requires a parallel engine)", new BoolValue(false)));
Parameters.Add(new ValueLookupParameter("SuccessRatio", "The ratio of successful to total children that should be achieved.", new DoubleValue(1)));
Parameters.Add(new ValueLookupParameter("ComparisonFactorLowerBound", "The lower bound of the comparison factor (start).", new DoubleValue(0)));
Parameters.Add(new ValueLookupParameter("ComparisonFactorUpperBound", "The upper bound of the comparison factor (end).", new DoubleValue(1)));
Parameters.Add(new OptionalConstrainedValueParameter("ComparisonFactorModifier", "The operator used to modify the comparison factor.", new ItemSet(new IDiscreteDoubleValueModifier[] { new LinearDiscreteDoubleValueModifier() }), new LinearDiscreteDoubleValueModifier()));
Parameters.Add(new ValueLookupParameter("MaximumSelectionPressure", "The maximum selection pressure that terminates the algorithm.", new DoubleValue(100)));
Parameters.Add(new ValueLookupParameter("OffspringSelectionBeforeMutation", "True if the offspring selection step should be applied before mutation, false if it should be applied after mutation.", new BoolValue(false)));
RandomCreator randomCreator = new RandomCreator();
SubScopesCreator populationCreator = new SubScopesCreator();
UniformSubScopesProcessor ussp1 = new UniformSubScopesProcessor();
SolutionsCreator solutionsCreator = new SolutionsCreator();
IslandOffspringSelectionGeneticAlgorithmMainLoop mainLoop = new IslandOffspringSelectionGeneticAlgorithmMainLoop();
OperatorGraph.InitialOperator = randomCreator;
randomCreator.RandomParameter.ActualName = "Random";
randomCreator.SeedParameter.ActualName = SeedParameter.Name;
randomCreator.SeedParameter.Value = null;
randomCreator.SetSeedRandomlyParameter.ActualName = SetSeedRandomlyParameter.Name;
randomCreator.SetSeedRandomlyParameter.Value = null;
randomCreator.Successor = populationCreator;
populationCreator.NumberOfSubScopesParameter.ActualName = NumberOfIslandsParameter.Name;
populationCreator.Successor = ussp1;
ussp1.Parallel = null;
ussp1.ParallelParameter.ActualName = ParallelParameter.Name;
ussp1.Operator = solutionsCreator;
ussp1.Successor = mainLoop;
solutionsCreator.NumberOfSolutionsParameter.ActualName = PopulationSizeParameter.Name;
solutionsCreator.Successor = null;
mainLoop.EmigrantsSelectorParameter.ActualName = EmigrantsSelectorParameter.Name;
mainLoop.ImmigrationReplacerParameter.ActualName = ImmigrationReplacerParameter.Name;
mainLoop.MaximumGenerationsParameter.ActualName = MaximumGenerationsParameter.Name;
mainLoop.MigrationIntervalParameter.ActualName = MigrationIntervalParameter.Name;
mainLoop.MigrationRateParameter.ActualName = MigrationRateParameter.Name;
mainLoop.MigratorParameter.ActualName = MigratorParameter.Name;
mainLoop.NumberOfIslandsParameter.ActualName = NumberOfIslandsParameter.Name;
mainLoop.SelectorParameter.ActualName = SelectorParameter.Name;
mainLoop.CrossoverParameter.ActualName = CrossoverParameter.Name;
mainLoop.ElitesParameter.ActualName = ElitesParameter.Name;
mainLoop.MutatorParameter.ActualName = MutatorParameter.Name;
mainLoop.MutationProbabilityParameter.ActualName = MutationProbabilityParameter.Name;
mainLoop.RandomParameter.ActualName = randomCreator.RandomParameter.ActualName;
mainLoop.ResultsParameter.ActualName = "Results";
mainLoop.SuccessRatioParameter.ActualName = SuccessRatioParameter.Name;
mainLoop.ComparisonFactorParameter.ActualName = "ComparisonFactor";
mainLoop.ComparisonFactorLowerBoundParameter.ActualName = ComparisonFactorLowerBoundParameter.Name;
mainLoop.ComparisonFactorModifierParameter.ActualName = ComparisonFactorModifierParameter.Name;
mainLoop.ComparisonFactorUpperBoundParameter.ActualName = ComparisonFactorUpperBoundParameter.Name;
mainLoop.MaximumSelectionPressureParameter.ActualName = MaximumSelectionPressureParameter.Name;
mainLoop.OffspringSelectionBeforeMutationParameter.ActualName = OffspringSelectionBeforeMutationParameter.Name;
mainLoop.Successor = null;
Initialize();
}
public override IDeepCloneable Clone(Cloner cloner) {
IslandOffspringSelectionGeneticAlgorithm clone = (IslandOffspringSelectionGeneticAlgorithm)base.Clone(cloner);
clone.Initialize();
return clone;
}
public override void Prepare() {
if (Problem != null) base.Prepare();
}
#region Events
protected override void OnProblemChanged() {
ParameterizeStochasticOperator(Problem.SolutionCreator);
ParameterizeStochasticOperator(Problem.Evaluator);
ParameterizeStochasticOperator(Problem.Visualizer);
foreach (IOperator op in Problem.Operators) ParameterizeStochasticOperator(op);
ParameterizeSolutionsCreator();
ParameterizeMainLoop();
ParameterizeSelectors();
UpdateCrossovers();
UpdateMutators();
Problem.Evaluator.QualityParameter.ActualNameChanged += new EventHandler(Evaluator_QualityParameter_ActualNameChanged);
if (Problem.Visualizer != null) Problem.Visualizer.VisualizationParameter.ActualNameChanged += new EventHandler(Visualizer_VisualizationParameter_ActualNameChanged);
base.OnProblemChanged();
}
protected override void Problem_SolutionCreatorChanged(object sender, EventArgs e) {
ParameterizeStochasticOperator(Problem.SolutionCreator);
ParameterizeSolutionsCreator();
base.Problem_SolutionCreatorChanged(sender, e);
}
protected override void Problem_EvaluatorChanged(object sender, EventArgs e) {
ParameterizeStochasticOperator(Problem.Evaluator);
ParameterizeSolutionsCreator();
ParameterizeMainLoop();
ParameterizeSelectors();
Problem.Evaluator.QualityParameter.ActualNameChanged += new EventHandler(Evaluator_QualityParameter_ActualNameChanged);
base.Problem_EvaluatorChanged(sender, e);
}
protected override void Problem_VisualizerChanged(object sender, EventArgs e) {
ParameterizeStochasticOperator(Problem.Visualizer);
ParameterizeMainLoop();
if (Problem.Visualizer != null) Problem.Visualizer.VisualizationParameter.ActualNameChanged += new EventHandler(Visualizer_VisualizationParameter_ActualNameChanged);
base.Problem_VisualizerChanged(sender, e);
}
protected override void Problem_OperatorsChanged(object sender, EventArgs e) {
foreach (IOperator op in Problem.Operators) ParameterizeStochasticOperator(op);
UpdateCrossovers();
UpdateMutators();
base.Problem_OperatorsChanged(sender, e);
}
private void ElitesParameter_ValueChanged(object sender, EventArgs e) {
Elites.ValueChanged += new EventHandler(Elites_ValueChanged);
ParameterizeSelectors();
}
private void Elites_ValueChanged(object sender, EventArgs e) {
ParameterizeSelectors();
}
private void PopulationSizeParameter_ValueChanged(object sender, EventArgs e) {
NumberOfIslands.ValueChanged += new EventHandler(PopulationSize_ValueChanged);
ParameterizeSelectors();
}
private void PopulationSize_ValueChanged(object sender, EventArgs e) {
ParameterizeSelectors();
}
private void Evaluator_QualityParameter_ActualNameChanged(object sender, EventArgs e) {
ParameterizeMainLoop();
ParameterizeSelectors();
}
private void Visualizer_VisualizationParameter_ActualNameChanged(object sender, EventArgs e) {
ParameterizeMainLoop();
}
private void MigrationRateParameter_ValueChanged(object sender, EventArgs e) {
MigrationRate.ValueChanged += new EventHandler(MigrationRate_ValueChanged);
ParameterizeSelectors();
}
private void MigrationRate_ValueChanged(object sender, EventArgs e) {
ParameterizeSelectors();
}
private void MaximumMigrationsParameter_ValueChanged(object sender, EventArgs e) {
MaximumGenerations.ValueChanged += new EventHandler(MaximumMigrations_ValueChanged);
ParameterizeComparisonFactorModifiers();
}
private void MaximumMigrations_ValueChanged(object sender, EventArgs e) {
ParameterizeComparisonFactorModifiers();
}
private void MigrationIntervalParameter_ValueChanged(object sender, EventArgs e) {
MigrationInterval.ValueChanged += new EventHandler(MigrationInterval_ValueChanged);
ParameterizeComparisonFactorModifiers();
}
private void MigrationInterval_ValueChanged(object sender, EventArgs e) {
ParameterizeComparisonFactorModifiers();
}
#endregion
#region Helpers
[StorableHook(HookType.AfterDeserialization)]
private void Initialize() {
InitializeSelectors();
UpdateSelectors();
InitializeComparisonFactorModifiers();
UpdateComparisonFactorModifiers();
InitializeMigrators();
UpdateMigrators();
PopulationSizeParameter.ValueChanged += new EventHandler(PopulationSizeParameter_ValueChanged);
PopulationSize.ValueChanged += new EventHandler(PopulationSize_ValueChanged);
MigrationRateParameter.ValueChanged += new EventHandler(MigrationRateParameter_ValueChanged);
MigrationRate.ValueChanged += new EventHandler(MigrationRate_ValueChanged);
ElitesParameter.ValueChanged += new EventHandler(ElitesParameter_ValueChanged);
Elites.ValueChanged += new EventHandler(Elites_ValueChanged);
MigrationIntervalParameter.ValueChanged += new EventHandler(MigrationIntervalParameter_ValueChanged);
MigrationInterval.ValueChanged += new EventHandler(MigrationInterval_ValueChanged);
MaximumGenerationsParameter.ValueChanged += new EventHandler(MaximumMigrationsParameter_ValueChanged);
MaximumGenerations.ValueChanged += new EventHandler(MaximumMigrations_ValueChanged);
if (Problem != null) {
UpdateCrossovers();
UpdateMutators();
Problem.Evaluator.QualityParameter.ActualNameChanged += new EventHandler(Evaluator_QualityParameter_ActualNameChanged);
if (Problem.Visualizer != null) Problem.Visualizer.VisualizationParameter.ActualNameChanged += new EventHandler(Visualizer_VisualizationParameter_ActualNameChanged);
}
}
private void ParameterizeSolutionsCreator() {
SolutionsCreator.EvaluatorParameter.ActualName = Problem.EvaluatorParameter.Name;
SolutionsCreator.SolutionCreatorParameter.ActualName = Problem.SolutionCreatorParameter.Name;
}
private void ParameterizeMainLoop() {
MainLoop.BestKnownQualityParameter.ActualName = Problem.BestKnownQualityParameter.Name;
MainLoop.EvaluatorParameter.ActualName = Problem.EvaluatorParameter.Name;
MainLoop.MaximizationParameter.ActualName = Problem.MaximizationParameter.Name;
MainLoop.QualityParameter.ActualName = Problem.Evaluator.QualityParameter.ActualName;
MainLoop.VisualizerParameter.ActualName = Problem.VisualizerParameter.Name;
if (Problem.Visualizer != null)
MainLoop.VisualizationParameter.ActualName = Problem.Visualizer.VisualizationParameter.ActualName;
}
private void ParameterizeStochasticOperator(IOperator op) {
if (op is IStochasticOperator)
((IStochasticOperator)op).RandomParameter.ActualName = RandomCreator.RandomParameter.ActualName;
}
private void InitializeSelectors() {
selectors = new List();
selectors.AddRange(ApplicationManager.Manager.GetInstances().Where(x => !(x is IMultiObjectiveSelector)).OrderBy(x => x.Name));
emigrantsSelectors = new List();
emigrantsSelectors.AddRange(ApplicationManager.Manager.GetInstances().Where(x => !(x is IMultiObjectiveSelector)).OrderBy(x => x.Name));
immigrationReplacers = new List();
immigrationReplacers.AddRange(ApplicationManager.Manager.GetInstances().OrderBy(x => x.Name));
ParameterizeSelectors();
}
private void InitializeComparisonFactorModifiers() {
comparisonFactorModifiers = new List();
comparisonFactorModifiers.AddRange(ApplicationManager.Manager.GetInstances().OrderBy(x => x.Name));
ParameterizeComparisonFactorModifiers();
}
private void InitializeMigrators() {
migrators = new List();
migrators.AddRange(ApplicationManager.Manager.GetInstances().OrderBy(x => x.Name));
UpdateMigrators();
}
private void ParameterizeSelectors() {
foreach (ISelector selector in Selectors) {
selector.CopySelected = new BoolValue(true);
selector.NumberOfSelectedSubScopesParameter.Value = new IntValue(2 * (PopulationSize.Value - Elites.Value));
ParameterizeStochasticOperator(selector);
}
foreach (ISelector selector in emigrantsSelectors) {
selector.CopySelected = new BoolValue(true);
selector.NumberOfSelectedSubScopesParameter.Value = new IntValue((int)Math.Ceiling(PopulationSize.Value * MigrationRate.Value));
ParameterizeStochasticOperator(selector);
}
foreach (IReplacer selector in immigrationReplacers) {
ParameterizeStochasticOperator(selector);
}
if (Problem != null) {
foreach (ISingleObjectiveSelector selector in Selectors.OfType()) {
selector.MaximizationParameter.ActualName = Problem.MaximizationParameter.Name;
selector.QualityParameter.ActualName = Problem.Evaluator.QualityParameter.ActualName;
}
foreach (ISingleObjectiveSelector selector in emigrantsSelectors.OfType()) {
selector.MaximizationParameter.ActualName = Problem.MaximizationParameter.Name;
selector.QualityParameter.ActualName = Problem.Evaluator.QualityParameter.ActualName;
}
foreach (ISingleObjectiveReplacer replacer in immigrationReplacers.OfType()) {
replacer.MaximizationParameter.ActualName = Problem.MaximizationParameter.Name;
replacer.QualityParameter.ActualName = Problem.Evaluator.QualityParameter.ActualName;
}
}
}
private void ParameterizeComparisonFactorModifiers() {
foreach (IDiscreteDoubleValueModifier modifier in comparisonFactorModifiers) {
modifier.IndexParameter.ActualName = "Generations";
modifier.EndIndexParameter.Value = new IntValue(MigrationInterval.Value * MaximumGenerations.Value);
modifier.EndValueParameter.ActualName = ComparisonFactorUpperBoundParameter.Name;
modifier.StartIndexParameter.Value = new IntValue(0);
modifier.StartValueParameter.ActualName = ComparisonFactorLowerBoundParameter.Name;
modifier.ValueParameter.ActualName = "ComparisonFactor";
}
}
private void UpdateSelectors() {
ISelector oldSelector = SelectorParameter.Value;
SelectorParameter.ValidValues.Clear();
foreach (ISelector selector in Selectors.OrderBy(x => x.Name))
SelectorParameter.ValidValues.Add(selector);
ISelector proportionalSelector = SelectorParameter.ValidValues.FirstOrDefault(x => x.GetType().Name.Equals("ProportionalSelector"));
if (proportionalSelector != null) SelectorParameter.Value = proportionalSelector;
if (oldSelector != null) {
ISelector selector = SelectorParameter.ValidValues.FirstOrDefault(x => x.GetType() == oldSelector.GetType());
if (selector != null) SelectorParameter.Value = selector;
}
oldSelector = EmigrantsSelector;
EmigrantsSelectorParameter.ValidValues.Clear();
foreach (ISelector selector in emigrantsSelectors)
EmigrantsSelectorParameter.ValidValues.Add(selector);
if (oldSelector != null) {
ISelector selector = EmigrantsSelectorParameter.ValidValues.FirstOrDefault(x => x.GetType() == oldSelector.GetType());
if (selector != null) EmigrantsSelectorParameter.Value = selector;
}
IReplacer oldReplacer = ImmigrationReplacerParameter.Value;
ImmigrationReplacerParameter.ValidValues.Clear();
foreach (IReplacer replacer in immigrationReplacers)
ImmigrationReplacerParameter.ValidValues.Add(replacer);
if (oldSelector != null) {
IReplacer replacer = ImmigrationReplacerParameter.ValidValues.FirstOrDefault(x => x.GetType() == oldSelector.GetType());
if (replacer != null) ImmigrationReplacerParameter.Value = replacer;
}
}
private void UpdateComparisonFactorModifiers() {
IDiscreteDoubleValueModifier oldModifier = ComparisonFactorModifier;
ComparisonFactorModifierParameter.ValidValues.Clear();
foreach (IDiscreteDoubleValueModifier modifier in comparisonFactorModifiers)
ComparisonFactorModifierParameter.ValidValues.Add(modifier);
if (oldModifier != null) {
IDiscreteDoubleValueModifier mod = ComparisonFactorModifierParameter.ValidValues.FirstOrDefault(x => x.GetType() == oldModifier.GetType());
if (mod != null) ComparisonFactorModifierParameter.Value = mod;
}
}
private void UpdateMigrators() {
IMigrator oldMigrator = Migrator;
MigratorParameter.ValidValues.Clear();
foreach (IMigrator migrator in migrators)
MigratorParameter.ValidValues.Add(migrator);
if (oldMigrator != null) {
IMigrator migrator = MigratorParameter.ValidValues.FirstOrDefault(x => x.GetType() == oldMigrator.GetType());
if (migrator != null) MigratorParameter.Value = migrator;
} else if (MigratorParameter.ValidValues.Count > 0) MigratorParameter.Value = MigratorParameter.ValidValues.First();
}
private void UpdateCrossovers() {
ICrossover oldCrossover = CrossoverParameter.Value;
CrossoverParameter.ValidValues.Clear();
foreach (ICrossover crossover in Problem.Operators.OfType().OrderBy(x => x.Name))
CrossoverParameter.ValidValues.Add(crossover);
if (oldCrossover != null) {
ICrossover crossover = CrossoverParameter.ValidValues.FirstOrDefault(x => x.GetType() == oldCrossover.GetType());
if (crossover != null) CrossoverParameter.Value = crossover;
}
}
private void UpdateMutators() {
IManipulator oldMutator = MutatorParameter.Value;
MutatorParameter.ValidValues.Clear();
foreach (IManipulator mutator in Problem.Operators.OfType().OrderBy(x => x.Name))
MutatorParameter.ValidValues.Add(mutator);
if (oldMutator != null) {
IManipulator mutator = MutatorParameter.ValidValues.FirstOrDefault(x => x.GetType() == oldMutator.GetType());
if (mutator != null) MutatorParameter.Value = mutator;
}
}
#endregion
}
}