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source: trunk/sources/HeuristicLab.Algorithms.GeneticAlgorithm/3.3/GeneticAlgorithmMainLoop.cs @ 3265

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Last change on this file since 3265 was 3198, checked in by swagner, 14 years ago
Renamed files/classes (#945).
File size: 17.6 KB

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[2830]	1	#region License Information
	2	/* HeuristicLab
	3	* Copyright (C) 2002-2010 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
	4	*
	5	* This file is part of HeuristicLab.
	6	*
	7	* HeuristicLab is free software: you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published by
	9	* the Free Software Foundation, either version 3 of the License, or
	10	* (at your option) any later version.
	11	*
	12	* HeuristicLab is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
	19	*/
	20	#endregion
	21
[2891]	22	using HeuristicLab.Analysis;
[2830]	23	using HeuristicLab.Core;
	24	using HeuristicLab.Data;
	25	using HeuristicLab.Operators;
[3021]	26	using HeuristicLab.Optimization.Operators;
[2830]	27	using HeuristicLab.Parameters;
[3000]	28	using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
[2830]	29	using HeuristicLab.Selection;
	30
[3196]	31	namespace HeuristicLab.Algorithms.GeneticAlgorithm {
[2830]	32	/// <summary>
[3198]	33	/// An operator which represents the main loop of a genetic algorithm.
[2830]	34	/// </summary>
[3198]	35	[Item("GeneticAlgorithmMainLoop", "An operator which represents the main loop of a genetic algorithm.")]
[3017]	36	[StorableClass]
[3198]	37	public sealed class GeneticAlgorithmMainLoop : AlgorithmOperator {
[2830]	38	#region Parameter properties
	39	public ValueLookupParameter<IRandom> RandomParameter {
	40	get { return (ValueLookupParameter<IRandom>)Parameters["Random"]; }
	41	}
[3048]	42	public ValueLookupParameter<BoolValue> MaximizationParameter {
	43	get { return (ValueLookupParameter<BoolValue>)Parameters["Maximization"]; }
[2830]	44	}
[3048]	45	public SubScopesLookupParameter<DoubleValue> QualityParameter {
	46	get { return (SubScopesLookupParameter<DoubleValue>)Parameters["Quality"]; }
[2830]	47	}
[3080]	48	public ValueLookupParameter<DoubleValue> BestKnownQualityParameter {
	49	get { return (ValueLookupParameter<DoubleValue>)Parameters["BestKnownQuality"]; }
	50	}
[2882]	51	public ValueLookupParameter<IOperator> SelectorParameter {
	52	get { return (ValueLookupParameter<IOperator>)Parameters["Selector"]; }
[2830]	53	}
[2882]	54	public ValueLookupParameter<IOperator> CrossoverParameter {
	55	get { return (ValueLookupParameter<IOperator>)Parameters["Crossover"]; }
	56	}
[3095]	57	public ValueLookupParameter<PercentValue> MutationProbabilityParameter {
	58	get { return (ValueLookupParameter<PercentValue>)Parameters["MutationProbability"]; }
[2830]	59	}
[2882]	60	public ValueLookupParameter<IOperator> MutatorParameter {
	61	get { return (ValueLookupParameter<IOperator>)Parameters["Mutator"]; }
[2830]	62	}
[2882]	63	public ValueLookupParameter<IOperator> EvaluatorParameter {
	64	get { return (ValueLookupParameter<IOperator>)Parameters["Evaluator"]; }
[2830]	65	}
[3048]	66	public ValueLookupParameter<IntValue> ElitesParameter {
	67	get { return (ValueLookupParameter<IntValue>)Parameters["Elites"]; }
[2830]	68	}
[3048]	69	public ValueLookupParameter<IntValue> MaximumGenerationsParameter {
	70	get { return (ValueLookupParameter<IntValue>)Parameters["MaximumGenerations"]; }
[2830]	71	}
[2882]	72	public ValueLookupParameter<VariableCollection> ResultsParameter {
	73	get { return (ValueLookupParameter<VariableCollection>)Parameters["Results"]; }
	74	}
[3107]	75	public ValueLookupParameter<IOperator> VisualizerParameter {
	76	get { return (ValueLookupParameter<IOperator>)Parameters["Visualizer"]; }
	77	}
	78	public LookupParameter<IItem> VisualizationParameter {
	79	get { return (LookupParameter<IItem>)Parameters["Visualization"]; }
	80	}
[2830]	81	private ScopeParameter CurrentScopeParameter {
	82	get { return (ScopeParameter)Parameters["CurrentScope"]; }
	83	}
	84
	85	public IScope CurrentScope {
	86	get { return CurrentScopeParameter.ActualValue; }
	87	}
	88	#endregion
	89
[3080]	90	[StorableConstructor]
[3198]	91	private GeneticAlgorithmMainLoop(bool deserializing) : base() { }
	92	public GeneticAlgorithmMainLoop()
[2830]	93	: base() {
[3080]	94	Initialize();
	95	}
	96
	97	private void Initialize() {
[2830]	98	#region Create parameters
	99	Parameters.Add(new ValueLookupParameter<IRandom>("Random", "A pseudo random number generator."));
[3048]	100	Parameters.Add(new ValueLookupParameter<BoolValue>("Maximization", "True if the problem is a maximization problem, otherwise false."));
	101	Parameters.Add(new SubScopesLookupParameter<DoubleValue>("Quality", "The value which represents the quality of a solution."));
[3080]	102	Parameters.Add(new ValueLookupParameter<DoubleValue>("BestKnownQuality", "The best known quality value found so far."));
[2882]	103	Parameters.Add(new ValueLookupParameter<IOperator>("Selector", "The operator used to select solutions for reproduction."));
	104	Parameters.Add(new ValueLookupParameter<IOperator>("Crossover", "The operator used to cross solutions."));
[3095]	105	Parameters.Add(new ValueLookupParameter<PercentValue>("MutationProbability", "The probability that the mutation operator is applied on a solution."));
[2882]	106	Parameters.Add(new ValueLookupParameter<IOperator>("Mutator", "The operator used to mutate solutions."));
	107	Parameters.Add(new ValueLookupParameter<IOperator>("Evaluator", "The operator used to evaluate solutions."));
[3048]	108	Parameters.Add(new ValueLookupParameter<IntValue>("Elites", "The numer of elite solutions which are kept in each generation."));
	109	Parameters.Add(new ValueLookupParameter<IntValue>("MaximumGenerations", "The maximum number of generations which should be processed."));
[2882]	110	Parameters.Add(new ValueLookupParameter<VariableCollection>("Results", "The variable collection where results should be stored."));
[3107]	111	Parameters.Add(new ValueLookupParameter<IOperator>("Visualizer", "The operator used to visualize solutions."));
	112	Parameters.Add(new LookupParameter<IItem>("Visualization", "The item which represents the visualization of solutions."));
[3198]	113	Parameters.Add(new ScopeParameter("CurrentScope", "The current scope which represents a population of solutions on which the genetic algorithm should be applied."));
[2830]	114	#endregion
	115
[3080]	116	#region Create operators
[2908]	117	VariableCreator variableCreator = new VariableCreator();
[3080]	118	BestQualityMemorizer bestQualityMemorizer1 = new BestQualityMemorizer();
[3095]	119	BestQualityMemorizer bestQualityMemorizer2 = new BestQualityMemorizer();
[3080]	120	BestAverageWorstQualityCalculator bestAverageWorstQualityCalculator1 = new BestAverageWorstQualityCalculator();
	121	DataTableValuesCollector dataTableValuesCollector1 = new DataTableValuesCollector();
[3095]	122	QualityDifferenceCalculator qualityDifferenceCalculator1 = new QualityDifferenceCalculator();
[3107]	123	Placeholder visualizer1 = new Placeholder();
[2924]	124	ResultsCollector resultsCollector = new ResultsCollector();
[2882]	125	Placeholder selector = new Placeholder();
[3193]	126	SubScopesProcessor subScopesProcessor1 = new SubScopesProcessor();
[2830]	127	ChildrenCreator childrenCreator = new ChildrenCreator();
[3193]	128	UniformSubScopesProcessor uniformSubScopesProcessor = new UniformSubScopesProcessor();
[2830]	129	Placeholder crossover = new Placeholder();
	130	StochasticBranch stochasticBranch = new StochasticBranch();
	131	Placeholder mutator = new Placeholder();
	132	Placeholder evaluator = new Placeholder();
	133	SubScopesRemover subScopesRemover = new SubScopesRemover();
[3193]	134	SubScopesProcessor subScopesProcessor2 = new SubScopesProcessor();
[3096]	135	BestSelector bestSelector = new BestSelector();
[2830]	136	RightReducer rightReducer = new RightReducer();
	137	MergingReducer mergingReducer = new MergingReducer();
	138	IntCounter intCounter = new IntCounter();
	139	Comparator comparator = new Comparator();
[3095]	140	BestQualityMemorizer bestQualityMemorizer3 = new BestQualityMemorizer();
	141	BestQualityMemorizer bestQualityMemorizer4 = new BestQualityMemorizer();
[3080]	142	BestAverageWorstQualityCalculator bestAverageWorstQualityCalculator2 = new BestAverageWorstQualityCalculator();
	143	DataTableValuesCollector dataTableValuesCollector2 = new DataTableValuesCollector();
[3095]	144	QualityDifferenceCalculator qualityDifferenceCalculator2 = new QualityDifferenceCalculator();
[3107]	145	Placeholder visualizer2 = new Placeholder();
[2830]	146	ConditionalBranch conditionalBranch = new ConditionalBranch();
	147
[3048]	148	variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("Generations", new IntValue(0)));
[2908]	149
[3095]	150	bestQualityMemorizer1.BestQualityParameter.ActualName = "BestQuality";
[3080]	151	bestQualityMemorizer1.MaximizationParameter.ActualName = "Maximization";
	152	bestQualityMemorizer1.QualityParameter.ActualName = "Quality";
	153
[3095]	154	bestQualityMemorizer2.BestQualityParameter.ActualName = "BestKnownQuality";
	155	bestQualityMemorizer2.MaximizationParameter.ActualName = "Maximization";
	156	bestQualityMemorizer2.QualityParameter.ActualName = "Quality";
	157
	158	bestAverageWorstQualityCalculator1.AverageQualityParameter.ActualName = "CurrentAverageQuality";
	159	bestAverageWorstQualityCalculator1.BestQualityParameter.ActualName = "CurrentBestQuality";
[3080]	160	bestAverageWorstQualityCalculator1.MaximizationParameter.ActualName = "Maximization";
	161	bestAverageWorstQualityCalculator1.QualityParameter.ActualName = "Quality";
[3095]	162	bestAverageWorstQualityCalculator1.WorstQualityParameter.ActualName = "CurrentWorstQuality";
[3080]	163
[3095]	164	dataTableValuesCollector1.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Best Quality", null, "CurrentBestQuality"));
	165	dataTableValuesCollector1.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Average Quality", null, "CurrentAverageQuality"));
	166	dataTableValuesCollector1.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Worst Quality", null, "CurrentWorstQuality"));
	167	dataTableValuesCollector1.CollectedValues.Add(new LookupParameter<DoubleValue>("Best Quality", null, "BestQuality"));
[3080]	168	dataTableValuesCollector1.CollectedValues.Add(new LookupParameter<DoubleValue>("Best Known Quality", null, "BestKnownQuality"));
	169	dataTableValuesCollector1.DataTableParameter.ActualName = "Qualities";
	170
[3095]	171	qualityDifferenceCalculator1.AbsoluteDifferenceParameter.ActualName = "AbsoluteDifferenceBestKnownToBest";
	172	qualityDifferenceCalculator1.FirstQualityParameter.ActualName = "BestKnownQuality";
	173	qualityDifferenceCalculator1.RelativeDifferenceParameter.ActualName = "RelativeDifferenceBestKnownToBest";
	174	qualityDifferenceCalculator1.SecondQualityParameter.ActualName = "BestQuality";
	175
[3107]	176	visualizer1.Name = "Visualizer";
	177	visualizer1.OperatorParameter.ActualName = "Visualizer";
	178
[3048]	179	resultsCollector.CollectedValues.Add(new LookupParameter<IntValue>("Generations"));
[3095]	180	resultsCollector.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Best Quality", null, "CurrentBestQuality"));
	181	resultsCollector.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Average Quality", null, "CurrentAverageQuality"));
	182	resultsCollector.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Worst Quality", null, "CurrentWorstQuality"));
	183	resultsCollector.CollectedValues.Add(new LookupParameter<DoubleValue>("Best Quality", null, "BestQuality"));
[3080]	184	resultsCollector.CollectedValues.Add(new LookupParameter<DoubleValue>("Best Known Quality", null, "BestKnownQuality"));
[3095]	185	resultsCollector.CollectedValues.Add(new LookupParameter<DoubleValue>("Absolute Difference of Best Known Quality to Best Quality", null, "AbsoluteDifferenceBestKnownToBest"));
	186	resultsCollector.CollectedValues.Add(new LookupParameter<DoubleValue>("Relative Difference of Best Known Quality to Best Quality", null, "RelativeDifferenceBestKnownToBest"));
[3107]	187	resultsCollector.CollectedValues.Add(new LookupParameter<IItem>("Solution Visualization", null, "Visualization"));
[2924]	188	resultsCollector.CollectedValues.Add(new LookupParameter<DataTable>("Qualities"));
	189	resultsCollector.ResultsParameter.ActualName = "Results";
[2908]	190
[2882]	191	selector.Name = "Selector";
	192	selector.OperatorParameter.ActualName = "Selector";
[2830]	193
[3048]	194	childrenCreator.ParentsPerChild = new IntValue(2);
[2830]	195
[2882]	196	crossover.Name = "Crossover";
	197	crossover.OperatorParameter.ActualName = "Crossover";
[2830]	198
	199	stochasticBranch.ProbabilityParameter.ActualName = "MutationProbability";
	200	stochasticBranch.RandomParameter.ActualName = "Random";
	201
[2882]	202	mutator.Name = "Mutator";
	203	mutator.OperatorParameter.ActualName = "Mutator";
[2830]	204
[2882]	205	evaluator.Name = "Evaluator";
	206	evaluator.OperatorParameter.ActualName = "Evaluator";
[2830]	207
	208	subScopesRemover.RemoveAllSubScopes = true;
	209
[3096]	210	bestSelector.CopySelected = new BoolValue(false);
	211	bestSelector.MaximizationParameter.ActualName = "Maximization";
	212	bestSelector.NumberOfSelectedSubScopesParameter.ActualName = "Elites";
	213	bestSelector.QualityParameter.ActualName = "Quality";
[2830]	214
[3048]	215	intCounter.Increment = new IntValue(1);
[2830]	216	intCounter.ValueParameter.ActualName = "Generations";
	217
[3048]	218	comparator.Comparison = new Comparison(ComparisonType.GreaterOrEqual);
[2830]	219	comparator.LeftSideParameter.ActualName = "Generations";
	220	comparator.ResultParameter.ActualName = "Terminate";
	221	comparator.RightSideParameter.ActualName = "MaximumGenerations";
	222
[3095]	223	bestQualityMemorizer3.BestQualityParameter.ActualName = "BestQuality";
	224	bestQualityMemorizer3.MaximizationParameter.ActualName = "Maximization";
	225	bestQualityMemorizer3.QualityParameter.ActualName = "Quality";
[2891]	226
[3095]	227	bestQualityMemorizer4.BestQualityParameter.ActualName = "BestKnownQuality";
	228	bestQualityMemorizer4.MaximizationParameter.ActualName = "Maximization";
	229	bestQualityMemorizer4.QualityParameter.ActualName = "Quality";
	230
	231	bestAverageWorstQualityCalculator2.AverageQualityParameter.ActualName = "CurrentAverageQuality";
	232	bestAverageWorstQualityCalculator2.BestQualityParameter.ActualName = "CurrentBestQuality";
[3080]	233	bestAverageWorstQualityCalculator2.MaximizationParameter.ActualName = "Maximization";
	234	bestAverageWorstQualityCalculator2.QualityParameter.ActualName = "Quality";
[3095]	235	bestAverageWorstQualityCalculator2.WorstQualityParameter.ActualName = "CurrentWorstQuality";
[2882]	236
[3095]	237	dataTableValuesCollector2.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Best Quality", null, "CurrentBestQuality"));
	238	dataTableValuesCollector2.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Average Quality", null, "CurrentAverageQuality"));
	239	dataTableValuesCollector2.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Worst Quality", null, "CurrentWorstQuality"));
	240	dataTableValuesCollector2.CollectedValues.Add(new LookupParameter<DoubleValue>("Best Quality", null, "BestQuality"));
[3080]	241	dataTableValuesCollector2.CollectedValues.Add(new LookupParameter<DoubleValue>("Best Known Quality", null, "BestKnownQuality"));
	242	dataTableValuesCollector2.DataTableParameter.ActualName = "Qualities";
	243
[3095]	244	qualityDifferenceCalculator2.AbsoluteDifferenceParameter.ActualName = "AbsoluteDifferenceBestKnownToBest";
	245	qualityDifferenceCalculator2.FirstQualityParameter.ActualName = "BestKnownQuality";
	246	qualityDifferenceCalculator2.RelativeDifferenceParameter.ActualName = "RelativeDifferenceBestKnownToBest";
	247	qualityDifferenceCalculator2.SecondQualityParameter.ActualName = "BestQuality";
	248
[3107]	249	visualizer2.Name = "Visualizer";
	250	visualizer2.OperatorParameter.ActualName = "Visualizer";
	251
[2830]	252	conditionalBranch.ConditionParameter.ActualName = "Terminate";
[3080]	253	#endregion
	254
	255	#region Create operator graph
	256	OperatorGraph.InitialOperator = variableCreator;
	257	variableCreator.Successor = bestQualityMemorizer1;
[3095]	258	bestQualityMemorizer1.Successor = bestQualityMemorizer2;
	259	bestQualityMemorizer2.Successor = bestAverageWorstQualityCalculator1;
[3080]	260	bestAverageWorstQualityCalculator1.Successor = dataTableValuesCollector1;
[3095]	261	dataTableValuesCollector1.Successor = qualityDifferenceCalculator1;
[3107]	262	qualityDifferenceCalculator1.Successor = visualizer1;
	263	visualizer1.Successor = resultsCollector;
[3096]	264	resultsCollector.Successor = selector;
[3193]	265	selector.Successor = subScopesProcessor1;
	266	subScopesProcessor1.Operators.Add(new EmptyOperator());
	267	subScopesProcessor1.Operators.Add(childrenCreator);
	268	subScopesProcessor1.Successor = subScopesProcessor2;
	269	childrenCreator.Successor = uniformSubScopesProcessor;
	270	uniformSubScopesProcessor.Operator = crossover;
	271	uniformSubScopesProcessor.Successor = null;
[3080]	272	crossover.Successor = stochasticBranch;
	273	stochasticBranch.FirstBranch = mutator;
	274	stochasticBranch.SecondBranch = null;
	275	stochasticBranch.Successor = evaluator;
	276	mutator.Successor = null;
	277	evaluator.Successor = subScopesRemover;
	278	subScopesRemover.Successor = null;
[3193]	279	subScopesProcessor2.Operators.Add(bestSelector);
	280	subScopesProcessor2.Operators.Add(new EmptyOperator());
	281	subScopesProcessor2.Successor = mergingReducer;
[3096]	282	bestSelector.Successor = rightReducer;
[3080]	283	rightReducer.Successor = null;
	284	mergingReducer.Successor = intCounter;
	285	intCounter.Successor = comparator;
[3095]	286	comparator.Successor = bestQualityMemorizer3;
	287	bestQualityMemorizer3.Successor = bestQualityMemorizer4;
	288	bestQualityMemorizer4.Successor = bestAverageWorstQualityCalculator2;
[3080]	289	bestAverageWorstQualityCalculator2.Successor = dataTableValuesCollector2;
[3095]	290	dataTableValuesCollector2.Successor = qualityDifferenceCalculator2;
[3107]	291	qualityDifferenceCalculator2.Successor = visualizer2;
	292	visualizer2.Successor = conditionalBranch;
[3096]	293	conditionalBranch.FalseBranch = selector;
[2830]	294	conditionalBranch.TrueBranch = null;
	295	conditionalBranch.Successor = null;
	296	#endregion
	297	}
	298	}
	299	}

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