| 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2013 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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| 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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| 22 | using System.Linq;
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| 23 | using HeuristicLab.Common;
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| 24 | using HeuristicLab.Core;
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| 25 | using HeuristicLab.Data;
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| 26 | using HeuristicLab.Operators;
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| 27 | using HeuristicLab.Optimization;
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| 28 | using HeuristicLab.Optimization.Operators;
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| 29 | using HeuristicLab.Parameters;
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| 30 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 31 | using HeuristicLab.Selection;
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| 32 |
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| 33 | namespace HeuristicLab.Algorithms.OffspringSelectionGeneticAlgorithm {
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| 34 | /// <summary>
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| 35 | /// An island offspring selection genetic algorithm main loop operator.
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| 36 | /// </summary>
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| 37 | [Item("IslandOffspringSelectionGeneticAlgorithmMainLoop", "An island offspring selection genetic algorithm main loop operator.")]
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| 38 | [StorableClass]
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| 39 | public sealed class IslandOffspringSelectionGeneticAlgorithmMainLoop : AlgorithmOperator {
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| 40 | #region Parameter Properties
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| 41 | public ValueLookupParameter<IRandom> RandomParameter {
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| 42 | get { return (ValueLookupParameter<IRandom>)Parameters["Random"]; }
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| 43 | }
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| 44 | public ValueLookupParameter<BoolValue> MaximizationParameter {
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| 45 | get { return (ValueLookupParameter<BoolValue>)Parameters["Maximization"]; }
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| 46 | }
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| 47 | public ScopeTreeLookupParameter<DoubleValue> QualityParameter {
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| 48 | get { return (ScopeTreeLookupParameter<DoubleValue>)Parameters["Quality"]; }
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| 49 | }
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| 50 | public ValueLookupParameter<DoubleValue> BestKnownQualityParameter {
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| 51 | get { return (ValueLookupParameter<DoubleValue>)Parameters["BestKnownQuality"]; }
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| 52 | }
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| 53 | public ValueLookupParameter<IntValue> NumberOfIslandsParameter {
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| 54 | get { return (ValueLookupParameter<IntValue>)Parameters["NumberOfIslands"]; }
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| 55 | }
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| 56 | public ValueLookupParameter<IntValue> MigrationIntervalParameter {
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| 57 | get { return (ValueLookupParameter<IntValue>)Parameters["MigrationInterval"]; }
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| 58 | }
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| 59 | public ValueLookupParameter<PercentValue> MigrationRateParameter {
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| 60 | get { return (ValueLookupParameter<PercentValue>)Parameters["MigrationRate"]; }
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| 61 | }
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| 62 | public ValueLookupParameter<IOperator> MigratorParameter {
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| 63 | get { return (ValueLookupParameter<IOperator>)Parameters["Migrator"]; }
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| 64 | }
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| 65 | public ValueLookupParameter<IOperator> EmigrantsSelectorParameter {
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| 66 | get { return (ValueLookupParameter<IOperator>)Parameters["EmigrantsSelector"]; }
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| 67 | }
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| 68 | public ValueLookupParameter<IOperator> ImmigrationReplacerParameter {
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| 69 | get { return (ValueLookupParameter<IOperator>)Parameters["ImmigrationReplacer"]; }
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| 70 | }
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| 71 | public ValueLookupParameter<IntValue> PopulationSizeParameter {
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| 72 | get { return (ValueLookupParameter<IntValue>)Parameters["PopulationSize"]; }
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| 73 | }
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| 74 | public ValueLookupParameter<IntValue> MaximumGenerationsParameter {
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| 75 | get { return (ValueLookupParameter<IntValue>)Parameters["MaximumGenerations"]; }
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| 76 | }
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| 77 | public ValueLookupParameter<IOperator> SelectorParameter {
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| 78 | get { return (ValueLookupParameter<IOperator>)Parameters["Selector"]; }
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| 79 | }
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| 80 | public ValueLookupParameter<IOperator> CrossoverParameter {
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| 81 | get { return (ValueLookupParameter<IOperator>)Parameters["Crossover"]; }
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| 82 | }
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| 83 | public ValueLookupParameter<PercentValue> MutationProbabilityParameter {
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| 84 | get { return (ValueLookupParameter<PercentValue>)Parameters["MutationProbability"]; }
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| 85 | }
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| 86 | public ValueLookupParameter<IOperator> MutatorParameter {
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| 87 | get { return (ValueLookupParameter<IOperator>)Parameters["Mutator"]; }
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| 88 | }
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| 89 | public ValueLookupParameter<IOperator> EvaluatorParameter {
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| 90 | get { return (ValueLookupParameter<IOperator>)Parameters["Evaluator"]; }
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| 91 | }
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| 92 | public ValueLookupParameter<IntValue> ElitesParameter {
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| 93 | get { return (ValueLookupParameter<IntValue>)Parameters["Elites"]; }
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| 94 | }
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| 95 | public IValueLookupParameter<BoolValue> ReevaluateElitesParameter {
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| 96 | get { return (IValueLookupParameter<BoolValue>)Parameters["ReevaluateElites"]; }
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| 97 | }
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| 98 | public ValueLookupParameter<ResultCollection> ResultsParameter {
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| 99 | get { return (ValueLookupParameter<ResultCollection>)Parameters["Results"]; }
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| 100 | }
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| 101 | public ValueLookupParameter<IOperator> VisualizerParameter {
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| 102 | get { return (ValueLookupParameter<IOperator>)Parameters["Visualizer"]; }
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| 103 | }
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| 104 | public LookupParameter<IItem> VisualizationParameter {
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| 105 | get { return (LookupParameter<IItem>)Parameters["Visualization"]; }
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| 106 | }
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| 107 | public ValueLookupParameter<DoubleValue> SuccessRatioParameter {
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| 108 | get { return (ValueLookupParameter<DoubleValue>)Parameters["SuccessRatio"]; }
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| 109 | }
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| 110 | public LookupParameter<DoubleValue> ComparisonFactorParameter {
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| 111 | get { return (LookupParameter<DoubleValue>)Parameters["ComparisonFactor"]; }
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| 112 | }
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| 113 | public ValueLookupParameter<DoubleValue> ComparisonFactorStartParameter {
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| 114 | get { return (ValueLookupParameter<DoubleValue>)Parameters["ComparisonFactorStart"]; }
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| 115 | }
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| 116 | public ValueLookupParameter<IOperator> ComparisonFactorModifierParameter {
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| 117 | get { return (ValueLookupParameter<IOperator>)Parameters["ComparisonFactorModifier"]; }
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| 118 | }
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| 119 | public ValueLookupParameter<DoubleValue> MaximumSelectionPressureParameter {
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| 120 | get { return (ValueLookupParameter<DoubleValue>)Parameters["MaximumSelectionPressure"]; }
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| 121 | }
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| 122 | public ValueLookupParameter<BoolValue> OffspringSelectionBeforeMutationParameter {
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| 123 | get { return (ValueLookupParameter<BoolValue>)Parameters["OffspringSelectionBeforeMutation"]; }
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| 124 | }
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| 125 | public ValueLookupParameter<IOperator> AnalyzerParameter {
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| 126 | get { return (ValueLookupParameter<IOperator>)Parameters["Analyzer"]; }
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| 127 | }
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| 128 | public ValueLookupParameter<IOperator> IslandAnalyzerParameter {
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| 129 | get { return (ValueLookupParameter<IOperator>)Parameters["IslandAnalyzer"]; }
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| 130 | }
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| 131 | public LookupParameter<IntValue> EvaluatedSolutionsParameter {
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| 132 | get { return (LookupParameter<IntValue>)Parameters["EvaluatedSolutions"]; }
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| 133 | }
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| 134 | public ValueLookupParameter<BoolValue> ReevaluateIndividualsAfterMigration {
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| 135 | get { return (ValueLookupParameter<BoolValue>)Parameters["ReevaluateIndividualsAfterMigration"]; }
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| 136 | }
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| 137 | #endregion
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| 138 |
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| 139 | [StorableConstructor]
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| 140 | private IslandOffspringSelectionGeneticAlgorithmMainLoop(bool deserializing) : base(deserializing) { }
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| 141 | private IslandOffspringSelectionGeneticAlgorithmMainLoop(IslandOffspringSelectionGeneticAlgorithmMainLoop original, Cloner cloner)
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| 142 | : base(original, cloner) {
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| 143 | }
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| 144 | public override IDeepCloneable Clone(Cloner cloner) {
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| 145 | return new IslandOffspringSelectionGeneticAlgorithmMainLoop(this, cloner);
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| 146 | }
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| 147 | public IslandOffspringSelectionGeneticAlgorithmMainLoop()
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| 148 | : base() {
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| 149 | #region Create parameters
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| 150 | Parameters.Add(new ValueLookupParameter<IRandom>("Random", "A pseudo random number generator."));
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| 151 | Parameters.Add(new ValueLookupParameter<BoolValue>("Maximization", "True if the problem is a maximization problem, otherwise false."));
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| 152 | Parameters.Add(new ScopeTreeLookupParameter<DoubleValue>("Quality", "The value which represents the quality of a solution."));
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| 153 | Parameters.Add(new ValueLookupParameter<DoubleValue>("BestKnownQuality", "The best known quality value found so far."));
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| 154 | Parameters.Add(new ValueLookupParameter<IntValue>("NumberOfIslands", "The number of islands."));
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| 155 | Parameters.Add(new ValueLookupParameter<IntValue>("MigrationInterval", "The number of generations that should pass between migration phases."));
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| 156 | Parameters.Add(new ValueLookupParameter<PercentValue>("MigrationRate", "The proportion of individuals that should migrate between the islands."));
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| 157 | Parameters.Add(new ValueLookupParameter<IOperator>("Migrator", "The migration strategy."));
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| 158 | Parameters.Add(new ValueLookupParameter<IOperator>("EmigrantsSelector", "Selects the individuals that will be migrated."));
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| 159 | Parameters.Add(new ValueLookupParameter<IOperator>("ImmigrationReplacer", "Replaces part of the original population with the immigrants."));
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| 160 | Parameters.Add(new ValueLookupParameter<IntValue>("PopulationSize", "The size of the population of solutions."));
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| 161 | Parameters.Add(new ValueLookupParameter<IntValue>("MaximumGenerations", "The maximum number of generations that should be processed."));
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| 162 | Parameters.Add(new ValueLookupParameter<IOperator>("Selector", "The operator used to select solutions for reproduction."));
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| 163 | Parameters.Add(new ValueLookupParameter<IOperator>("Crossover", "The operator used to cross solutions."));
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| 164 | Parameters.Add(new ValueLookupParameter<PercentValue>("MutationProbability", "The probability that the mutation operator is applied on a solution."));
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| 165 | Parameters.Add(new ValueLookupParameter<IOperator>("Mutator", "The operator used to mutate solutions."));
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| 166 | Parameters.Add(new ValueLookupParameter<IOperator>("Evaluator", "The operator used to evaluate solutions. This operator is executed in parallel, if an engine is used which supports parallelization."));
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| 167 | Parameters.Add(new ValueLookupParameter<IntValue>("Elites", "The numer of elite solutions which are kept in each generation."));
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| 168 | Parameters.Add(new ValueLookupParameter<BoolValue>("ReevaluateElites", "Flag to determine if elite individuals should be reevaluated (i.e., if stochastic fitness functions are used.)"));
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| 169 | Parameters.Add(new ValueLookupParameter<ResultCollection>("Results", "The results collection to store the results."));
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| 170 | Parameters.Add(new ValueLookupParameter<IOperator>("Visualizer", "The operator used to visualize solutions."));
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| 171 | Parameters.Add(new LookupParameter<IItem>("Visualization", "The item which represents the visualization of solutions."));
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| 172 | Parameters.Add(new ValueLookupParameter<DoubleValue>("SuccessRatio", "The ratio of successful to total children that should be achieved."));
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| 173 | Parameters.Add(new LookupParameter<DoubleValue>("ComparisonFactor", "The comparison factor is used to determine whether the offspring should be compared to the better parent, the worse parent or a quality value linearly interpolated between them. It is in the range [0;1]."));
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| 174 | Parameters.Add(new ValueLookupParameter<DoubleValue>("ComparisonFactorStart", "The initial value for the comparison factor."));
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| 175 | Parameters.Add(new ValueLookupParameter<IOperator>("ComparisonFactorModifier", "The operator used to modify the comparison factor."));
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| 176 | Parameters.Add(new ValueLookupParameter<DoubleValue>("MaximumSelectionPressure", "The maximum selection pressure that terminates the algorithm."));
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| 177 | Parameters.Add(new ValueLookupParameter<BoolValue>("OffspringSelectionBeforeMutation", "True if the offspring selection step should be applied before mutation, false if it should be applied after mutation."));
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| 178 | Parameters.Add(new ValueLookupParameter<IOperator>("Analyzer", "The operator used to the analyze the islands."));
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| 179 | Parameters.Add(new ValueLookupParameter<IOperator>("IslandAnalyzer", "The operator used to analyze each island."));
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| 180 | Parameters.Add(new LookupParameter<IntValue>("EvaluatedSolutions", "The number of times solutions have been evaluated."));
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| 181 | Parameters.Add(new ValueLookupParameter<BoolValue>("ReevaluateIndividualsAfterMigration", "Flag which indicates if inviduals should be reevaluated after migration."));
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| 182 | #endregion
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| 183 |
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| 184 | #region Create operators
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| 185 | VariableCreator variableCreator = new VariableCreator();
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| 186 | UniformSubScopesProcessor uniformSubScopesProcessor0 = new UniformSubScopesProcessor();
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| 187 | VariableCreator islandVariableCreator = new VariableCreator();
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| 188 | Placeholder islandAnalyzer1 = new Placeholder();
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| 189 | ResultsCollector islandResultsCollector1 = new ResultsCollector();
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| 190 | Assigner comparisonFactorInitializer = new Assigner();
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| 191 | Placeholder analyzer1 = new Placeholder();
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| 192 | ResultsCollector resultsCollector1 = new ResultsCollector();
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| 193 | UniformSubScopesProcessor uniformSubScopesProcessor1 = new UniformSubScopesProcessor();
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| 194 | ConditionalBranch islandTerminatedBySelectionPressure1 = new ConditionalBranch();
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| 195 | OffspringSelectionGeneticAlgorithmMainOperator mainOperator = new OffspringSelectionGeneticAlgorithmMainOperator();
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| 196 | Placeholder islandAnalyzer2 = new Placeholder();
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| 197 | ResultsCollector islandResultsCollector2 = new ResultsCollector();
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| 198 | Comparator islandSelectionPressureComparator = new Comparator();
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| 199 | ConditionalBranch islandTerminatedBySelectionPressure2 = new ConditionalBranch();
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| 200 | IntCounter terminatedIslandsCounter = new IntCounter();
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| 201 | IntCounter generationsCounter = new IntCounter();
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| 202 | IntCounter generationsSinceLastMigrationCounter = new IntCounter();
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| 203 | Comparator migrationComparator = new Comparator();
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| 204 | ConditionalBranch migrationBranch = new ConditionalBranch();
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| 205 | Assigner resetTerminatedIslandsAssigner = new Assigner();
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| 206 | Assigner resetGenerationsSinceLastMigrationAssigner = new Assigner();
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| 207 | IntCounter migrationsCounter = new IntCounter();
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| 208 | UniformSubScopesProcessor uniformSubScopesProcessor2 = new UniformSubScopesProcessor();
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| 209 | Assigner reviveIslandAssigner = new Assigner();
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| 210 | Placeholder emigrantsSelector = new Placeholder();
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| 211 | Placeholder migrator = new Placeholder();
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| 212 | ConditionalBranch reevaluateImmigrantsBranch = new ConditionalBranch();
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| 213 | UniformSubScopesProcessor uniformSubScopesProcessor3 = new UniformSubScopesProcessor();
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| 214 | SubScopesProcessor subScopesProcessor = new SubScopesProcessor();
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| 215 | UniformSubScopesProcessor uniformSubScopesProcessor4 = new UniformSubScopesProcessor();
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| 216 | Placeholder evaluator = new Placeholder();
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| 217 | SubScopesCounter subScopesCounter = new SubScopesCounter();
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| 218 | UniformSubScopesProcessor uniformSubScopesProcessor5 = new UniformSubScopesProcessor();
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| 219 | Placeholder immigrationReplacer = new Placeholder();
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| 220 | Comparator generationsComparator = new Comparator();
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| 221 | Comparator terminatedIslandsComparator = new Comparator();
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| 222 | Comparator maxEvaluatedSolutionsComparator = new Comparator();
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| 223 | Placeholder comparisonFactorModifier = new Placeholder();
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| 224 | Placeholder analyzer2 = new Placeholder();
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| 225 | ConditionalBranch generationsTerminationCondition = new ConditionalBranch();
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| 226 | ConditionalBranch terminatedIslandsCondition = new ConditionalBranch();
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| 227 | ConditionalBranch evaluatedSolutionsTerminationCondition = new ConditionalBranch();
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| 228 |
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| 229 | variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("Migrations", new IntValue(0)));
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| 230 | variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("Generations", new IntValue(0))); // Class IslandOffspringSelectionGeneticAlgorithm expects this to be called Generations
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| 231 | variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("GenerationsSinceLastMigration", new IntValue(0)));
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| 232 | variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("TerminatedIslands", new IntValue(0)));
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| 233 |
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| 234 | islandVariableCreator.CollectedValues.Add(new ValueParameter<ResultCollection>(ResultsParameter.Name, new ResultCollection()));
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| 235 | islandVariableCreator.CollectedValues.Add(new ValueParameter<BoolValue>("TerminateSelectionPressure", new BoolValue(false)));
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| 236 | islandVariableCreator.CollectedValues.Add(new ValueParameter<DoubleValue>("SelectionPressure", new DoubleValue(0)));
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| 237 |
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| 238 | islandAnalyzer1.Name = "Island Analyzer (placeholder)";
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| 239 | islandAnalyzer1.OperatorParameter.ActualName = IslandAnalyzerParameter.Name;
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| 240 |
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| 241 | islandResultsCollector1.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Selection Pressure", "Displays the rising selection pressure during a generation.", "SelectionPressure"));
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| 242 | islandResultsCollector1.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Success Ratio", "Indicates how many successful children were already found during a generation (relative to the population size).", "CurrentSuccessRatio"));
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| 243 | islandResultsCollector1.ResultsParameter.ActualName = ResultsParameter.Name;
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| 244 |
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| 245 | comparisonFactorInitializer.Name = "Initialize Comparison Factor";
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| 246 | comparisonFactorInitializer.LeftSideParameter.ActualName = ComparisonFactorParameter.Name;
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| 247 | comparisonFactorInitializer.RightSideParameter.ActualName = ComparisonFactorStartParameter.Name;
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| 248 |
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| 249 | analyzer1.Name = "Analyzer (placeholder)";
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| 250 | analyzer1.OperatorParameter.ActualName = AnalyzerParameter.Name;
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| 251 |
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| 252 | resultsCollector1.CopyValue = new BoolValue(false);
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| 253 | resultsCollector1.CollectedValues.Add(new LookupParameter<IntValue>("Migrations"));
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| 254 | resultsCollector1.CollectedValues.Add(new LookupParameter<IntValue>("Generations"));
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| 255 | resultsCollector1.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Comparison Factor", null, ComparisonFactorParameter.Name));
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| 256 | resultsCollector1.CollectedValues.Add(new ScopeTreeLookupParameter<ResultCollection>("IslandResults", "Result set for each island", ResultsParameter.Name));
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| 257 | resultsCollector1.ResultsParameter.ActualName = ResultsParameter.Name;
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| 258 |
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| 259 | islandTerminatedBySelectionPressure1.Name = "Island Terminated ?";
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| 260 | islandTerminatedBySelectionPressure1.ConditionParameter.ActualName = "TerminateSelectionPressure";
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| 261 |
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| 262 | mainOperator.ComparisonFactorParameter.ActualName = ComparisonFactorParameter.Name;
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| 263 | mainOperator.CrossoverParameter.ActualName = CrossoverParameter.Name;
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| 264 | mainOperator.CurrentSuccessRatioParameter.ActualName = "CurrentSuccessRatio";
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| 265 | mainOperator.ElitesParameter.ActualName = ElitesParameter.Name;
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| 266 | mainOperator.ReevaluateElitesParameter.ActualName = ReevaluateElitesParameter.Name;
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| 267 | mainOperator.EvaluatedSolutionsParameter.ActualName = EvaluatedSolutionsParameter.Name;
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| 268 | mainOperator.EvaluatorParameter.ActualName = EvaluatorParameter.Name;
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| 269 | mainOperator.MaximizationParameter.ActualName = MaximizationParameter.Name;
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| 270 | mainOperator.MaximumSelectionPressureParameter.ActualName = MaximumSelectionPressureParameter.Name;
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| 271 | mainOperator.MutationProbabilityParameter.ActualName = MutationProbabilityParameter.Name;
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| 272 | mainOperator.MutatorParameter.ActualName = MutatorParameter.Name;
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| 273 | mainOperator.OffspringSelectionBeforeMutationParameter.ActualName = OffspringSelectionBeforeMutationParameter.Name;
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| 274 | mainOperator.QualityParameter.ActualName = QualityParameter.Name;
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| 275 | mainOperator.RandomParameter.ActualName = RandomParameter.Name;
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| 276 | mainOperator.SelectionPressureParameter.ActualName = "SelectionPressure";
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| 277 | mainOperator.SelectorParameter.ActualName = SelectorParameter.Name;
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| 278 | mainOperator.SuccessRatioParameter.ActualName = SuccessRatioParameter.Name;
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| 279 | foreach (var offspringSelector in mainOperator.OperatorGraph.Operators.OfType<OffspringSelector>())
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| 280 | offspringSelector.FillPopulationWithParents = true;
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| 281 |
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| 282 | islandAnalyzer2.Name = "Island Analyzer (placeholder)";
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| 283 | islandAnalyzer2.OperatorParameter.ActualName = IslandAnalyzerParameter.Name;
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| 284 |
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| 285 | islandResultsCollector2.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Selection Pressure", "Displays the rising selection pressure during a generation.", "SelectionPressure"));
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| 286 | islandResultsCollector2.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Success Ratio", "Indicates how many successful children were already found during a generation (relative to the population size).", "CurrentSuccessRatio"));
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| 287 | islandResultsCollector2.ResultsParameter.ActualName = "Results";
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| 288 |
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| 289 | islandSelectionPressureComparator.Name = "SelectionPressure >= MaximumSelectionPressure ?";
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| 290 | islandSelectionPressureComparator.LeftSideParameter.ActualName = "SelectionPressure";
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| 291 | islandSelectionPressureComparator.Comparison = new Comparison(ComparisonType.GreaterOrEqual);
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| 292 | islandSelectionPressureComparator.RightSideParameter.ActualName = MaximumSelectionPressureParameter.Name;
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| 293 | islandSelectionPressureComparator.ResultParameter.ActualName = "TerminateSelectionPressure";
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| 294 |
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| 295 | islandTerminatedBySelectionPressure2.Name = "Island Terminated ?";
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| 296 | islandTerminatedBySelectionPressure2.ConditionParameter.ActualName = "TerminateSelectionPressure";
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| 297 |
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| 298 | terminatedIslandsCounter.Name = "TerminatedIslands + 1";
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| 299 | terminatedIslandsCounter.ValueParameter.ActualName = "TerminatedIslands";
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| 300 | terminatedIslandsCounter.Increment = new IntValue(1);
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| 301 |
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| 302 | generationsCounter.Name = "Generations + 1";
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| 303 | generationsCounter.ValueParameter.ActualName = "Generations";
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| 304 | generationsCounter.Increment = new IntValue(1);
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| 305 |
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| 306 | generationsSinceLastMigrationCounter.Name = "GenerationsSinceLastMigration + 1";
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| 307 | generationsSinceLastMigrationCounter.ValueParameter.ActualName = "GenerationsSinceLastMigration";
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| 308 | generationsSinceLastMigrationCounter.Increment = new IntValue(1);
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| 309 |
|
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| 310 | migrationComparator.Name = "GenerationsSinceLastMigration = MigrationInterval ?";
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| 311 | migrationComparator.LeftSideParameter.ActualName = "GenerationsSinceLastMigration";
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| 312 | migrationComparator.Comparison = new Comparison(ComparisonType.Equal);
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| 313 | migrationComparator.RightSideParameter.ActualName = MigrationIntervalParameter.Name;
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| 314 | migrationComparator.ResultParameter.ActualName = "Migrate";
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| 315 |
|
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| 316 | migrationBranch.Name = "Migrate?";
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| 317 | migrationBranch.ConditionParameter.ActualName = "Migrate";
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| 318 |
|
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| 319 | resetTerminatedIslandsAssigner.Name = "Reset TerminatedIslands";
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| 320 | resetTerminatedIslandsAssigner.LeftSideParameter.ActualName = "TerminatedIslands";
|
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| 321 | resetTerminatedIslandsAssigner.RightSideParameter.Value = new IntValue(0);
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| 322 |
|
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| 323 | resetGenerationsSinceLastMigrationAssigner.Name = "Reset GenerationsSinceLastMigration";
|
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| 324 | resetGenerationsSinceLastMigrationAssigner.LeftSideParameter.ActualName = "GenerationsSinceLastMigration";
|
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| 325 | resetGenerationsSinceLastMigrationAssigner.RightSideParameter.Value = new IntValue(0);
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| 326 |
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| 327 | migrationsCounter.Name = "Migrations + 1";
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| 328 | migrationsCounter.IncrementParameter.Value = new IntValue(1);
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| 329 | migrationsCounter.ValueParameter.ActualName = "Migrations";
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| 330 |
|
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| 331 | reviveIslandAssigner.Name = "Revive Island";
|
|---|
| 332 | reviveIslandAssigner.LeftSideParameter.ActualName = "TerminateSelectionPressure";
|
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| 333 | reviveIslandAssigner.RightSideParameter.Value = new BoolValue(false);
|
|---|
| 334 |
|
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| 335 | emigrantsSelector.Name = "Emigrants Selector (placeholder)";
|
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| 336 | emigrantsSelector.OperatorParameter.ActualName = EmigrantsSelectorParameter.Name;
|
|---|
| 337 |
|
|---|
| 338 | migrator.Name = "Migrator (placeholder)";
|
|---|
| 339 | migrator.OperatorParameter.ActualName = MigratorParameter.Name;
|
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| 340 |
|
|---|
| 341 | reevaluateImmigrantsBranch.ConditionParameter.ActualName = "ReevaluateImmigrants";
|
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| 342 | reevaluateImmigrantsBranch.Name = "Reevaluate Immigrants ?";
|
|---|
| 343 |
|
|---|
| 344 | evaluator.Name = "Evaluator (placeholder)";
|
|---|
| 345 | evaluator.OperatorParameter.ActualName = EvaluatorParameter.Name;
|
|---|
| 346 |
|
|---|
| 347 | subScopesCounter.Name = "Increment EvaluatedSolutions";
|
|---|
| 348 | subScopesCounter.ValueParameter.ActualName = EvaluatedSolutionsParameter.Name;
|
|---|
| 349 |
|
|---|
| 350 | immigrationReplacer.Name = "Immigration Replacer (placeholder)";
|
|---|
| 351 | immigrationReplacer.OperatorParameter.ActualName = ImmigrationReplacerParameter.Name;
|
|---|
| 352 |
|
|---|
| 353 | generationsComparator.Name = "Generations >= MaximumGenerations ?";
|
|---|
| 354 | generationsComparator.LeftSideParameter.ActualName = "Generations";
|
|---|
| 355 | generationsComparator.Comparison = new Comparison(ComparisonType.GreaterOrEqual);
|
|---|
| 356 | generationsComparator.RightSideParameter.ActualName = MaximumGenerationsParameter.Name;
|
|---|
| 357 | generationsComparator.ResultParameter.ActualName = "TerminateGenerations";
|
|---|
| 358 |
|
|---|
| 359 | terminatedIslandsComparator.Name = "All Islands terminated ?";
|
|---|
| 360 | terminatedIslandsComparator.LeftSideParameter.ActualName = "TerminatedIslands";
|
|---|
| 361 | terminatedIslandsComparator.Comparison = new Comparison(ComparisonType.GreaterOrEqual);
|
|---|
| 362 | terminatedIslandsComparator.RightSideParameter.ActualName = NumberOfIslandsParameter.Name;
|
|---|
| 363 | terminatedIslandsComparator.ResultParameter.ActualName = "TerminateTerminatedIslands";
|
|---|
| 364 |
|
|---|
| 365 | maxEvaluatedSolutionsComparator.Name = "EvaluatedSolutions >= MaximumEvaluatedSolutions ?";
|
|---|
| 366 | maxEvaluatedSolutionsComparator.Comparison = new Comparison(ComparisonType.GreaterOrEqual);
|
|---|
| 367 | maxEvaluatedSolutionsComparator.LeftSideParameter.ActualName = EvaluatedSolutionsParameter.Name;
|
|---|
| 368 | maxEvaluatedSolutionsComparator.ResultParameter.ActualName = "TerminateEvaluatedSolutions";
|
|---|
| 369 | maxEvaluatedSolutionsComparator.RightSideParameter.ActualName = "MaximumEvaluatedSolutions";
|
|---|
| 370 |
|
|---|
| 371 | comparisonFactorModifier.Name = "Update Comparison Factor (Placeholder)";
|
|---|
| 372 | comparisonFactorModifier.OperatorParameter.ActualName = ComparisonFactorModifierParameter.Name;
|
|---|
| 373 |
|
|---|
| 374 | analyzer2.Name = "Analyzer (placeholder)";
|
|---|
| 375 | analyzer2.OperatorParameter.ActualName = AnalyzerParameter.Name;
|
|---|
| 376 |
|
|---|
| 377 | generationsTerminationCondition.Name = "Terminate (MaxGenerations) ?";
|
|---|
| 378 | generationsTerminationCondition.ConditionParameter.ActualName = "TerminateGenerations";
|
|---|
| 379 |
|
|---|
| 380 | terminatedIslandsCondition.Name = "Terminate (TerminatedIslands) ?";
|
|---|
| 381 | terminatedIslandsCondition.ConditionParameter.ActualName = "TerminateTerminatedIslands";
|
|---|
| 382 |
|
|---|
| 383 | evaluatedSolutionsTerminationCondition.Name = "Terminate (EvaluatedSolutions) ?";
|
|---|
| 384 | evaluatedSolutionsTerminationCondition.ConditionParameter.ActualName = "TerminateEvaluatedSolutions";
|
|---|
| 385 | #endregion
|
|---|
| 386 |
|
|---|
| 387 | #region Create operator graph
|
|---|
| 388 | OperatorGraph.InitialOperator = variableCreator;
|
|---|
| 389 | variableCreator.Successor = uniformSubScopesProcessor0;
|
|---|
| 390 | uniformSubScopesProcessor0.Operator = islandVariableCreator;
|
|---|
| 391 | uniformSubScopesProcessor0.Successor = comparisonFactorInitializer;
|
|---|
| 392 | islandVariableCreator.Successor = islandAnalyzer1;
|
|---|
| 393 | islandAnalyzer1.Successor = islandResultsCollector1;
|
|---|
| 394 | islandResultsCollector1.Successor = null;
|
|---|
| 395 | comparisonFactorInitializer.Successor = analyzer1;
|
|---|
| 396 | analyzer1.Successor = resultsCollector1;
|
|---|
| 397 | resultsCollector1.Successor = uniformSubScopesProcessor1;
|
|---|
| 398 | uniformSubScopesProcessor1.Operator = islandTerminatedBySelectionPressure1;
|
|---|
| 399 | uniformSubScopesProcessor1.Successor = generationsCounter;
|
|---|
| 400 | islandTerminatedBySelectionPressure1.TrueBranch = null;
|
|---|
| 401 | islandTerminatedBySelectionPressure1.FalseBranch = mainOperator;
|
|---|
| 402 | islandTerminatedBySelectionPressure1.Successor = null;
|
|---|
| 403 | mainOperator.Successor = islandAnalyzer2;
|
|---|
| 404 | islandAnalyzer2.Successor = islandResultsCollector2;
|
|---|
| 405 | islandResultsCollector2.Successor = islandSelectionPressureComparator;
|
|---|
| 406 | islandSelectionPressureComparator.Successor = islandTerminatedBySelectionPressure2;
|
|---|
| 407 | islandTerminatedBySelectionPressure2.TrueBranch = terminatedIslandsCounter;
|
|---|
| 408 | islandTerminatedBySelectionPressure2.FalseBranch = null;
|
|---|
| 409 | islandTerminatedBySelectionPressure2.Successor = null;
|
|---|
| 410 | generationsCounter.Successor = generationsSinceLastMigrationCounter;
|
|---|
| 411 | generationsSinceLastMigrationCounter.Successor = migrationComparator;
|
|---|
| 412 | migrationComparator.Successor = migrationBranch;
|
|---|
| 413 | migrationBranch.TrueBranch = resetTerminatedIslandsAssigner;
|
|---|
| 414 | migrationBranch.FalseBranch = null;
|
|---|
| 415 | migrationBranch.Successor = generationsComparator;
|
|---|
| 416 | resetTerminatedIslandsAssigner.Successor = resetGenerationsSinceLastMigrationAssigner;
|
|---|
| 417 | resetGenerationsSinceLastMigrationAssigner.Successor = migrationsCounter;
|
|---|
| 418 | migrationsCounter.Successor = uniformSubScopesProcessor2;
|
|---|
| 419 | uniformSubScopesProcessor2.Operator = reviveIslandAssigner;
|
|---|
| 420 | uniformSubScopesProcessor2.Successor = migrator;
|
|---|
| 421 | reviveIslandAssigner.Successor = emigrantsSelector;
|
|---|
| 422 | emigrantsSelector.Successor = null;
|
|---|
| 423 | migrator.Successor = reevaluateImmigrantsBranch;
|
|---|
| 424 | reevaluateImmigrantsBranch.FalseBranch = null;
|
|---|
| 425 | reevaluateImmigrantsBranch.Successor = uniformSubScopesProcessor5;
|
|---|
| 426 | reevaluateImmigrantsBranch.TrueBranch = uniformSubScopesProcessor3;
|
|---|
| 427 | uniformSubScopesProcessor3.Operator = subScopesProcessor;
|
|---|
| 428 | subScopesProcessor.Operators.Add(uniformSubScopesProcessor4);
|
|---|
| 429 | subScopesProcessor.Operators.Add(uniformSubScopesProcessor4);
|
|---|
| 430 | uniformSubScopesProcessor4.Operator = evaluator;
|
|---|
| 431 | uniformSubScopesProcessor4.Successor = subScopesCounter;
|
|---|
| 432 | evaluator.Successor = null;
|
|---|
| 433 | uniformSubScopesProcessor5.Operator = immigrationReplacer;
|
|---|
| 434 | uniformSubScopesProcessor5.Successor = null;
|
|---|
| 435 | immigrationReplacer.Successor = null;
|
|---|
| 436 | generationsComparator.Successor = terminatedIslandsComparator;
|
|---|
| 437 | terminatedIslandsComparator.Successor = maxEvaluatedSolutionsComparator;
|
|---|
| 438 | maxEvaluatedSolutionsComparator.Successor = comparisonFactorModifier;
|
|---|
| 439 | comparisonFactorModifier.Successor = analyzer2;
|
|---|
| 440 | analyzer2.Successor = generationsTerminationCondition;
|
|---|
| 441 | generationsTerminationCondition.TrueBranch = null;
|
|---|
| 442 | generationsTerminationCondition.FalseBranch = terminatedIslandsCondition;
|
|---|
| 443 | generationsTerminationCondition.Successor = null;
|
|---|
| 444 | terminatedIslandsCondition.TrueBranch = null;
|
|---|
| 445 | terminatedIslandsCondition.FalseBranch = evaluatedSolutionsTerminationCondition;
|
|---|
| 446 | terminatedIslandsCondition.Successor = null;
|
|---|
| 447 | evaluatedSolutionsTerminationCondition.TrueBranch = null;
|
|---|
| 448 | evaluatedSolutionsTerminationCondition.FalseBranch = uniformSubScopesProcessor1;
|
|---|
| 449 | evaluatedSolutionsTerminationCondition.Successor = null;
|
|---|
| 450 | #endregion
|
|---|
| 451 | }
|
|---|
| 452 |
|
|---|
| 453 | [StorableHook(HookType.AfterDeserialization)]
|
|---|
| 454 | private void AfterDeserialization() {
|
|---|
| 455 | // BackwardsCompatibility3.3
|
|---|
| 456 | #region Backwards compatible code, remove with 3.4
|
|---|
| 457 | if (!Parameters.ContainsKey("ReevaluateElites")) {
|
|---|
| 458 | Parameters.Add(new ValueLookupParameter<BoolValue>("ReevaluateElites", "Flag to determine if elite individuals should be reevaluated (i.e., if stochastic fitness functions are used.)"));
|
|---|
| 459 | }
|
|---|
| 460 | #endregion
|
|---|
| 461 | }
|
|---|
| 462 |
|
|---|
| 463 | public override IOperation Apply() {
|
|---|
| 464 | if (CrossoverParameter.ActualValue == null)
|
|---|
| 465 | return null;
|
|---|
| 466 | return base.Apply();
|
|---|
| 467 | }
|
|---|
| 468 | }
|
|---|
| 469 | }
|
|---|
