| 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2010 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;
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| 23 | using System.Collections.Generic;
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| 24 | using System.Linq;
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| 25 | using HeuristicLab.Analysis;
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| 26 | using HeuristicLab.Common;
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| 27 | using HeuristicLab.Core;
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| 28 | using HeuristicLab.Data;
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| 29 | using HeuristicLab.Operators;
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| 30 | using HeuristicLab.Optimization;
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| 31 | using HeuristicLab.Optimization.Operators;
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| 32 | using HeuristicLab.Parameters;
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| 33 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 34 | using HeuristicLab.PluginInfrastructure;
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| 35 | using HeuristicLab.Selection;
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| 36 |
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| 37 | namespace HeuristicLab.Algorithms.OffspringSelectionGeneticAlgorithm {
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| 38 | /// <summary>
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| 39 | /// An island offspring selection genetic algorithm main loop operator.
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| 40 | /// </summary>
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| 41 | [Item("IslandOffspringSelectionGeneticAlgorithmMainLoop", "An island offspring selection genetic algorithm main loop operator.")]
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| 42 | [StorableClass]
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| 43 | public sealed class IslandOffspringSelectionGeneticAlgorithmMainLoop : AlgorithmOperator {
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| 44 | #region Parameter Properties
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| 45 | public ValueLookupParameter<IRandom> RandomParameter {
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| 46 | get { return (ValueLookupParameter<IRandom>)Parameters["Random"]; }
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| 47 | }
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| 48 | public ValueLookupParameter<BoolValue> MaximizationParameter {
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| 49 | get { return (ValueLookupParameter<BoolValue>)Parameters["Maximization"]; }
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| 50 | }
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| 51 | public ScopeTreeLookupParameter<DoubleValue> QualityParameter {
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| 52 | get { return (ScopeTreeLookupParameter<DoubleValue>)Parameters["Quality"]; }
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| 53 | }
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| 54 | public ValueLookupParameter<DoubleValue> BestKnownQualityParameter {
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| 55 | get { return (ValueLookupParameter<DoubleValue>)Parameters["BestKnownQuality"]; }
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| 56 | }
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| 57 | public ValueLookupParameter<IntValue> NumberOfIslandsParameter {
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| 58 | get { return (ValueLookupParameter<IntValue>)Parameters["NumberOfIslands"]; }
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| 59 | }
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| 60 | public ValueLookupParameter<IntValue> MigrationIntervalParameter {
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| 61 | get { return (ValueLookupParameter<IntValue>)Parameters["MigrationInterval"]; }
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| 62 | }
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| 63 | public ValueLookupParameter<PercentValue> MigrationRateParameter {
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| 64 | get { return (ValueLookupParameter<PercentValue>)Parameters["MigrationRate"]; }
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| 65 | }
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| 66 | public ValueLookupParameter<IOperator> MigratorParameter {
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| 67 | get { return (ValueLookupParameter<IOperator>)Parameters["Migrator"]; }
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| 68 | }
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| 69 | public ValueLookupParameter<IOperator> EmigrantsSelectorParameter {
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| 70 | get { return (ValueLookupParameter<IOperator>)Parameters["EmigrantsSelector"]; }
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| 71 | }
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| 72 | public ValueLookupParameter<IOperator> ImmigrationReplacerParameter {
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| 73 | get { return (ValueLookupParameter<IOperator>)Parameters["ImmigrationReplacer"]; }
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| 74 | }
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| 75 | public ValueLookupParameter<IntValue> PopulationSizeParameter {
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| 76 | get { return (ValueLookupParameter<IntValue>)Parameters["PopulationSize"]; }
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| 77 | }
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| 78 | public ValueLookupParameter<IntValue> MaximumGenerationsParameter {
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| 79 | get { return (ValueLookupParameter<IntValue>)Parameters["MaximumGenerations"]; }
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| 80 | }
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| 81 | public ValueLookupParameter<IOperator> SelectorParameter {
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| 82 | get { return (ValueLookupParameter<IOperator>)Parameters["Selector"]; }
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| 83 | }
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| 84 | public ValueLookupParameter<IOperator> CrossoverParameter {
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| 85 | get { return (ValueLookupParameter<IOperator>)Parameters["Crossover"]; }
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| 86 | }
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| 87 | public ValueLookupParameter<PercentValue> MutationProbabilityParameter {
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| 88 | get { return (ValueLookupParameter<PercentValue>)Parameters["MutationProbability"]; }
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| 89 | }
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| 90 | public ValueLookupParameter<IOperator> MutatorParameter {
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| 91 | get { return (ValueLookupParameter<IOperator>)Parameters["Mutator"]; }
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| 92 | }
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| 93 | public ValueLookupParameter<IOperator> EvaluatorParameter {
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| 94 | get { return (ValueLookupParameter<IOperator>)Parameters["Evaluator"]; }
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| 95 | }
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| 96 | public ValueLookupParameter<IntValue> ElitesParameter {
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| 97 | get { return (ValueLookupParameter<IntValue>)Parameters["Elites"]; }
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| 98 | }
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| 99 | public ValueLookupParameter<ResultCollection> ResultsParameter {
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| 100 | get { return (ValueLookupParameter<ResultCollection>)Parameters["Results"]; }
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| 101 | }
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| 102 | public ValueLookupParameter<IOperator> VisualizerParameter {
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| 103 | get { return (ValueLookupParameter<IOperator>)Parameters["Visualizer"]; }
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| 104 | }
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| 105 | public LookupParameter<IItem> VisualizationParameter {
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| 106 | get { return (LookupParameter<IItem>)Parameters["Visualization"]; }
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| 107 | }
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| 108 | public ValueLookupParameter<DoubleValue> SuccessRatioParameter {
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| 109 | get { return (ValueLookupParameter<DoubleValue>)Parameters["SuccessRatio"]; }
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| 110 | }
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| 111 | public LookupParameter<DoubleValue> ComparisonFactorParameter {
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| 112 | get { return (LookupParameter<DoubleValue>)Parameters["ComparisonFactor"]; }
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| 113 | }
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| 114 | public ValueLookupParameter<DoubleValue> ComparisonFactorStartParameter {
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| 115 | get { return (ValueLookupParameter<DoubleValue>)Parameters["ComparisonFactorStart"]; }
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| 116 | }
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| 117 | public ValueLookupParameter<IOperator> ComparisonFactorModifierParameter {
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| 118 | get { return (ValueLookupParameter<IOperator>)Parameters["ComparisonFactorModifier"]; }
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| 119 | }
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| 120 | public ValueLookupParameter<DoubleValue> MaximumSelectionPressureParameter {
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| 121 | get { return (ValueLookupParameter<DoubleValue>)Parameters["MaximumSelectionPressure"]; }
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| 122 | }
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| 123 | public ValueLookupParameter<BoolValue> OffspringSelectionBeforeMutationParameter {
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| 124 | get { return (ValueLookupParameter<BoolValue>)Parameters["OffspringSelectionBeforeMutation"]; }
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| 125 | }
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| 126 | public ValueLookupParameter<IOperator> AnalyzerParameter {
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| 127 | get { return (ValueLookupParameter<IOperator>)Parameters["Analyzer"]; }
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| 128 | }
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| 129 | public ValueLookupParameter<IOperator> IslandAnalyzerParameter {
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| 130 | get { return (ValueLookupParameter<IOperator>)Parameters["IslandAnalyzer"]; }
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| 131 | }
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| 132 | #endregion
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| 133 |
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| 134 | [StorableConstructor]
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| 135 | private IslandOffspringSelectionGeneticAlgorithmMainLoop(bool deserializing) : base() { }
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| 136 | public IslandOffspringSelectionGeneticAlgorithmMainLoop()
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| 137 | : base() {
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| 138 | #region Create parameters
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| 139 | Parameters.Add(new ValueLookupParameter<IRandom>("Random", "A pseudo random number generator."));
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| 140 | Parameters.Add(new ValueLookupParameter<BoolValue>("Maximization", "True if the problem is a maximization problem, otherwise false."));
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| 141 | Parameters.Add(new ScopeTreeLookupParameter<DoubleValue>("Quality", "The value which represents the quality of a solution."));
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| 142 | Parameters.Add(new ValueLookupParameter<DoubleValue>("BestKnownQuality", "The best known quality value found so far."));
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| 143 | Parameters.Add(new ValueLookupParameter<IntValue>("NumberOfIslands", "The number of islands."));
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| 144 | Parameters.Add(new ValueLookupParameter<IntValue>("MigrationInterval", "The number of generations that should pass between migration phases."));
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| 145 | Parameters.Add(new ValueLookupParameter<PercentValue>("MigrationRate", "The proportion of individuals that should migrate between the islands."));
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| 146 | Parameters.Add(new ValueLookupParameter<IOperator>("Migrator", "The migration strategy."));
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| 147 | Parameters.Add(new ValueLookupParameter<IOperator>("EmigrantsSelector", "Selects the individuals that will be migrated."));
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| 148 | Parameters.Add(new ValueLookupParameter<IOperator>("ImmigrationReplacer", "Replaces part of the original population with the immigrants."));
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| 149 | Parameters.Add(new ValueLookupParameter<IntValue>("PopulationSize", "The size of the population of solutions."));
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| 150 | Parameters.Add(new ValueLookupParameter<IntValue>("MaximumGenerations", "The maximum number of generations that should be processed."));
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| 151 | Parameters.Add(new ValueLookupParameter<IOperator>("Selector", "The operator used to select solutions for reproduction."));
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| 152 | Parameters.Add(new ValueLookupParameter<IOperator>("Crossover", "The operator used to cross solutions."));
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| 153 | Parameters.Add(new ValueLookupParameter<PercentValue>("MutationProbability", "The probability that the mutation operator is applied on a solution."));
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| 154 | Parameters.Add(new ValueLookupParameter<IOperator>("Mutator", "The operator used to mutate solutions."));
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| 155 | Parameters.Add(new ValueLookupParameter<IOperator>("Evaluator", "The operator used to evaluate solutions."));
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| 156 | Parameters.Add(new ValueLookupParameter<IntValue>("Elites", "The numer of elite solutions which are kept in each generation."));
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| 157 | Parameters.Add(new ValueLookupParameter<ResultCollection>("Results", "The results collection to store the results."));
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| 158 | Parameters.Add(new ValueLookupParameter<IOperator>("Visualizer", "The operator used to visualize solutions."));
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| 159 | Parameters.Add(new LookupParameter<IItem>("Visualization", "The item which represents the visualization of solutions."));
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| 160 | Parameters.Add(new ValueLookupParameter<DoubleValue>("SuccessRatio", "The ratio of successful to total children that should be achieved."));
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| 161 | 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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| 162 | Parameters.Add(new ValueLookupParameter<DoubleValue>("ComparisonFactorStart", "The initial value for the comparison factor."));
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| 163 | Parameters.Add(new ValueLookupParameter<IOperator>("ComparisonFactorModifier", "The operator used to modify the comparison factor."));
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| 164 | Parameters.Add(new ValueLookupParameter<DoubleValue>("MaximumSelectionPressure", "The maximum selection pressure that terminates the algorithm."));
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| 165 | 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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| 166 | Parameters.Add(new ValueLookupParameter<IOperator>("Analyzer", "The operator used to the analyze the islands."));
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| 167 | Parameters.Add(new ValueLookupParameter<IOperator>("IslandAnalyzer", "The operator used to analyze each island."));
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| 168 | #endregion
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| 169 |
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| 170 | #region Create operators
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| 171 | VariableCreator variableCreator = new VariableCreator();
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| 172 | UniformSubScopesProcessor uniformSubScopesProcessor0 = new UniformSubScopesProcessor();
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| 173 | VariableCreator islandVariableCreator = new VariableCreator();
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| 174 | Placeholder islandAnalyzer1 = new Placeholder();
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| 175 | ResultsCollector islandResultsCollector1 = new ResultsCollector();
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| 176 | Assigner comparisonFactorInitializer = new Assigner();
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| 177 | Placeholder analyzer1 = new Placeholder();
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| 178 | ResultsCollector resultsCollector1 = new ResultsCollector();
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| 179 | ResultsCollector resultsCollector2 = new ResultsCollector();
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| 180 | UniformSubScopesProcessor uniformSubScopesProcessor1 = new UniformSubScopesProcessor();
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| 181 | ConditionalBranch islandTerminatedBySelectionPressure1 = new ConditionalBranch();
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| 182 | OffspringSelectionGeneticAlgorithmMainOperator mainOperator = new OffspringSelectionGeneticAlgorithmMainOperator();
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| 183 | Placeholder islandAnalyzer2 = new Placeholder();
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| 184 | ResultsCollector islandResultsCollector2 = new ResultsCollector();
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| 185 | IntCounter islandEvaluatedSolutionsCounter = new IntCounter();
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| 186 | Assigner islandEvaluatedSolutionsAssigner = new Assigner();
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| 187 | Comparator islandSelectionPressureComparator = new Comparator();
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| 188 | ConditionalBranch islandTerminatedBySelectionPressure2 = new ConditionalBranch();
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| 189 | IntCounter terminatedIslandsCounter = new IntCounter();
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| 190 | IntCounter generationsCounter = new IntCounter();
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| 191 | IntCounter generationsSinceLastMigrationCounter = new IntCounter();
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| 192 | Comparator migrationComparator = new Comparator();
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| 193 | ConditionalBranch migrationBranch = new ConditionalBranch();
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| 194 | Assigner resetTerminatedIslandsAssigner = new Assigner();
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| 195 | Assigner resetGenerationsSinceLastMigrationAssigner = new Assigner();
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| 196 | IntCounter migrationsCounter = new IntCounter();
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| 197 | UniformSubScopesProcessor uniformSubScopesProcessor2 = new UniformSubScopesProcessor();
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| 198 | Assigner reviveIslandAssigner = new Assigner();
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| 199 | Placeholder emigrantsSelector = new Placeholder();
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| 200 | Placeholder migrator = new Placeholder();
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| 201 | UniformSubScopesProcessor uniformSubScopesProcessor3 = new UniformSubScopesProcessor();
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| 202 | Placeholder immigrationReplacer = new Placeholder();
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| 203 | Comparator generationsComparator = new Comparator();
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| 204 | Comparator terminatedIslandsComparator = new Comparator();
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| 205 | Placeholder comparisonFactorModifier = new Placeholder();
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| 206 | Placeholder analyzer2 = new Placeholder();
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| 207 | ResultsCollector resultsCollector3 = new ResultsCollector();
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| 208 | ConditionalBranch generationsTerminationCondition = new ConditionalBranch();
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| 209 | ConditionalBranch terminatedIslandsCondition = new ConditionalBranch();
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| 210 |
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| 211 | variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("Migrations", new IntValue(0)));
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| 212 | variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("Generations", new IntValue(0)));
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| 213 | variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("GenerationsSinceLastMigration", new IntValue(0)));
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| 214 | variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("TerminatedIslands", new IntValue(0)));
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| 215 | variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("EvaluatedSolutions", new IntValue(0)));
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| 216 |
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| 217 | islandVariableCreator.CollectedValues.Add(new ValueParameter<ResultCollection>(ResultsParameter.Name, new ResultCollection()));
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| 218 | islandVariableCreator.CollectedValues.Add(new ValueParameter<IntValue>("IslandEvaluatedSolutions", new IntValue(0)));
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| 219 | islandVariableCreator.CollectedValues.Add(new ValueParameter<BoolValue>("TerminateSelectionPressure", new BoolValue(false)));
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| 220 | islandVariableCreator.CollectedValues.Add(new ValueParameter<DoubleValue>("SelectionPressure", new DoubleValue(0)));
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| 221 |
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| 222 | islandAnalyzer1.Name = "Island Analyzer (placeholder)";
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| 223 | islandAnalyzer1.OperatorParameter.ActualName = IslandAnalyzerParameter.Name;
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| 224 |
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| 225 | islandResultsCollector1.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Selection Pressure", null, "SelectionPressure"));
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| 226 | islandResultsCollector1.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Success Ratio", null, "CurrentSuccessRatio"));
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| 227 | islandResultsCollector1.ResultsParameter.ActualName = ResultsParameter.Name;
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| 228 |
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| 229 | comparisonFactorInitializer.Name = "Initialize Comparison Factor";
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| 230 | comparisonFactorInitializer.LeftSideParameter.ActualName = ComparisonFactorParameter.Name;
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| 231 | comparisonFactorInitializer.RightSideParameter.ActualName = ComparisonFactorStartParameter.Name;
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| 232 |
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| 233 | analyzer1.Name = "Analyzer (placeholder)";
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| 234 | analyzer1.OperatorParameter.ActualName = AnalyzerParameter.Name;
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| 235 |
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| 236 | resultsCollector1.CopyValue = new BoolValue(false);
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| 237 | resultsCollector1.CollectedValues.Add(new LookupParameter<IntValue>("Migrations"));
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| 238 | resultsCollector1.CollectedValues.Add(new LookupParameter<IntValue>("Generations"));
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| 239 | resultsCollector1.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Comparison Factor", null, ComparisonFactorParameter.Name));
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| 240 | resultsCollector1.CollectedValues.Add(new ScopeTreeLookupParameter<ResultCollection>("IslandResults", "Result set for each island", ResultsParameter.Name));
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| 241 | resultsCollector1.ResultsParameter.ActualName = ResultsParameter.Name;
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| 242 |
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| 243 | resultsCollector2.CopyValue = new BoolValue(true);
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| 244 | resultsCollector2.CollectedValues.Add(new LookupParameter<IntValue>("Evaluated Solutions", null, "EvaluatedSolutions"));
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| 245 | resultsCollector2.ResultsParameter.ActualName = ResultsParameter.Name;
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| 246 |
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| 247 | islandTerminatedBySelectionPressure1.Name = "Island Terminated ?";
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| 248 | islandTerminatedBySelectionPressure1.ConditionParameter.ActualName = "TerminateSelectionPressure";
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| 249 |
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| 250 | mainOperator.ComparisonFactorParameter.ActualName = ComparisonFactorParameter.Name;
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| 251 | mainOperator.CrossoverParameter.ActualName = CrossoverParameter.Name;
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| 252 | mainOperator.CurrentSuccessRatioParameter.ActualName = "CurrentSuccessRatio";
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| 253 | mainOperator.ElitesParameter.ActualName = ElitesParameter.Name;
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| 254 | mainOperator.EvaluatedSolutionsParameter.ActualName = "IslandEvaluatedSolutions";
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| 255 | mainOperator.EvaluatorParameter.ActualName = EvaluatorParameter.Name;
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| 256 | mainOperator.MaximizationParameter.ActualName = MaximizationParameter.Name;
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| 257 | mainOperator.MaximumSelectionPressureParameter.ActualName = MaximumSelectionPressureParameter.Name;
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| 258 | mainOperator.MutationProbabilityParameter.ActualName = MutationProbabilityParameter.Name;
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| 259 | mainOperator.MutatorParameter.ActualName = MutatorParameter.Name;
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| 260 | mainOperator.OffspringSelectionBeforeMutationParameter.ActualName = OffspringSelectionBeforeMutationParameter.Name;
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| 261 | mainOperator.QualityParameter.ActualName = QualityParameter.Name;
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| 262 | mainOperator.RandomParameter.ActualName = RandomParameter.Name;
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| 263 | mainOperator.SelectionPressureParameter.ActualName = "SelectionPressure";
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| 264 | mainOperator.SelectorParameter.ActualName = SelectorParameter.Name;
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| 265 | mainOperator.SuccessRatioParameter.ActualName = SuccessRatioParameter.Name;
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| 266 |
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| 267 | islandAnalyzer2.Name = "Island Analyzer (placeholder)";
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| 268 | islandAnalyzer2.OperatorParameter.ActualName = IslandAnalyzerParameter.Name;
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| 269 |
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| 270 | islandResultsCollector2.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Selection Pressure", null, "SelectionPressure"));
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| 271 | islandResultsCollector2.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Success Ratio", null, "CurrentSuccessRatio"));
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| 272 | islandResultsCollector2.ResultsParameter.ActualName = "Results";
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| 273 |
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| 274 | islandEvaluatedSolutionsCounter.Name = "Update EvaluatedSolutions";
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| 275 | islandEvaluatedSolutionsCounter.ValueParameter.ActualName = "EvaluatedSolutions";
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| 276 | islandEvaluatedSolutionsCounter.Increment = null;
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| 277 | islandEvaluatedSolutionsCounter.IncrementParameter.ActualName = "IslandEvaluatedSolutions";
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| 278 |
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| 279 | islandEvaluatedSolutionsAssigner.Name = "Reset EvaluatedSolutions";
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| 280 | islandEvaluatedSolutionsAssigner.LeftSideParameter.ActualName = "IslandEvaluatedSolutions";
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| 281 | islandEvaluatedSolutionsAssigner.RightSideParameter.Value = new IntValue(0);
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| 282 |
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| 283 | islandSelectionPressureComparator.Name = "SelectionPressure >= MaximumSelectionPressure ?";
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| 284 | islandSelectionPressureComparator.LeftSideParameter.ActualName = "SelectionPressure";
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| 285 | islandSelectionPressureComparator.Comparison = new Comparison(ComparisonType.GreaterOrEqual);
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| 286 | islandSelectionPressureComparator.RightSideParameter.ActualName = MaximumSelectionPressureParameter.Name;
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| 287 | islandSelectionPressureComparator.ResultParameter.ActualName = "TerminateSelectionPressure";
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| 288 |
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| 289 | islandTerminatedBySelectionPressure2.Name = "Island Terminated ?";
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| 290 | islandTerminatedBySelectionPressure2.ConditionParameter.ActualName = "TerminateSelectionPressure";
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| 291 |
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| 292 | terminatedIslandsCounter.Name = "TerminatedIslands + 1";
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| 293 | terminatedIslandsCounter.ValueParameter.ActualName = "TerminatedIslands";
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| 294 | terminatedIslandsCounter.Increment = new IntValue(1);
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| 295 |
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| 296 | generationsCounter.Name = "Generations + 1";
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| 297 | generationsCounter.ValueParameter.ActualName = "Generations";
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| 298 | generationsCounter.Increment = new IntValue(1);
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| 299 |
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| 300 | generationsSinceLastMigrationCounter.Name = "GenerationsSinceLastMigration + 1";
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| 301 | generationsSinceLastMigrationCounter.ValueParameter.ActualName = "GenerationsSinceLastMigration";
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| 302 | generationsSinceLastMigrationCounter.Increment = new IntValue(1);
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| 303 |
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| 304 | migrationComparator.Name = "GenerationsSinceLastMigration = MigrationInterval ?";
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| 305 | migrationComparator.LeftSideParameter.ActualName = "GenerationsSinceLastMigration";
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| 306 | migrationComparator.Comparison = new Comparison(ComparisonType.Equal);
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| 307 | migrationComparator.RightSideParameter.ActualName = MigrationIntervalParameter.Name;
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| 308 | migrationComparator.ResultParameter.ActualName = "Migrate";
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| 309 |
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| 310 | migrationBranch.Name = "Migrate?";
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| 311 | migrationBranch.ConditionParameter.ActualName = "Migrate";
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| 312 |
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| 313 | resetTerminatedIslandsAssigner.Name = "Reset TerminatedIslands";
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| 314 | resetTerminatedIslandsAssigner.LeftSideParameter.ActualName = "TerminatedIslands";
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| 315 | resetTerminatedIslandsAssigner.RightSideParameter.Value = new IntValue(0);
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| 316 |
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| 317 | resetGenerationsSinceLastMigrationAssigner.Name = "Reset GenerationsSinceLastMigration";
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| 318 | resetGenerationsSinceLastMigrationAssigner.LeftSideParameter.ActualName = "GenerationsSinceLastMigration";
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| 319 | resetGenerationsSinceLastMigrationAssigner.RightSideParameter.Value = new IntValue(0);
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| 320 |
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| 321 | migrationsCounter.Name = "Migrations + 1";
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| 322 | migrationsCounter.IncrementParameter.Value = new IntValue(1);
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| 323 | migrationsCounter.ValueParameter.ActualName = "Migrations";
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| 324 |
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| 325 | reviveIslandAssigner.Name = "Revive Island";
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| 326 | reviveIslandAssigner.LeftSideParameter.ActualName = "TerminateSelectionPressure";
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| 327 | reviveIslandAssigner.RightSideParameter.Value = new BoolValue(false);
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| 328 |
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| 329 | emigrantsSelector.Name = "Emigrants Selector (placeholder)";
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| 330 | emigrantsSelector.OperatorParameter.ActualName = EmigrantsSelectorParameter.Name;
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| 331 |
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| 332 | migrator.Name = "Migrator (placeholder)";
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| 333 | migrator.OperatorParameter.ActualName = MigratorParameter.Name;
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| 334 |
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| 335 | immigrationReplacer.Name = "Immigration Replacer (placeholder)";
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| 336 | immigrationReplacer.OperatorParameter.ActualName = ImmigrationReplacerParameter.Name;
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| 337 |
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| 338 | generationsComparator.Name = "Generations >= MaximumGenerations ?";
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| 339 | generationsComparator.LeftSideParameter.ActualName = "Generations";
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| 340 | generationsComparator.Comparison = new Comparison(ComparisonType.GreaterOrEqual);
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| 341 | generationsComparator.RightSideParameter.ActualName = MaximumGenerationsParameter.Name;
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| 342 | generationsComparator.ResultParameter.ActualName = "TerminateGenerations";
|
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| 343 |
|
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| 344 | terminatedIslandsComparator.Name = "All Islands terminated ?";
|
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| 345 | terminatedIslandsComparator.LeftSideParameter.ActualName = "TerminatedIslands";
|
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| 346 | terminatedIslandsComparator.Comparison = new Comparison(ComparisonType.GreaterOrEqual);
|
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| 347 | terminatedIslandsComparator.RightSideParameter.ActualName = NumberOfIslandsParameter.Name;
|
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| 348 | terminatedIslandsComparator.ResultParameter.ActualName = "TerminateTerminatedIslands";
|
|---|
| 349 |
|
|---|
| 350 | comparisonFactorModifier.Name = "Update Comparison Factor (Placeholder)";
|
|---|
| 351 | comparisonFactorModifier.OperatorParameter.ActualName = ComparisonFactorModifierParameter.Name;
|
|---|
| 352 |
|
|---|
| 353 | analyzer2.Name = "Analyzer (placeholder)";
|
|---|
| 354 | analyzer2.OperatorParameter.ActualName = AnalyzerParameter.Name;
|
|---|
| 355 |
|
|---|
| 356 | resultsCollector3.CopyValue = new BoolValue(true);
|
|---|
| 357 | resultsCollector3.CollectedValues.Add(new LookupParameter<IntValue>("Evaluated Solutions", null, "EvaluatedSolutions"));
|
|---|
| 358 | resultsCollector3.ResultsParameter.ActualName = ResultsParameter.Name;
|
|---|
| 359 |
|
|---|
| 360 | generationsTerminationCondition.Name = "Terminate (MaxGenerations) ?";
|
|---|
| 361 | generationsTerminationCondition.ConditionParameter.ActualName = "TerminateGenerations";
|
|---|
| 362 |
|
|---|
| 363 | terminatedIslandsCondition.Name = "Terminate (TerminatedIslands) ?";
|
|---|
| 364 | terminatedIslandsCondition.ConditionParameter.ActualName = "TerminateTerminatedIslands";
|
|---|
| 365 | #endregion
|
|---|
| 366 |
|
|---|
| 367 | #region Create operator graph
|
|---|
| 368 | OperatorGraph.InitialOperator = variableCreator;
|
|---|
| 369 | variableCreator.Successor = uniformSubScopesProcessor0;
|
|---|
| 370 | uniformSubScopesProcessor0.Operator = islandVariableCreator;
|
|---|
| 371 | uniformSubScopesProcessor0.Successor = comparisonFactorInitializer;
|
|---|
| 372 | islandVariableCreator.Successor = islandAnalyzer1;
|
|---|
| 373 | islandAnalyzer1.Successor = islandResultsCollector1;
|
|---|
| 374 | islandResultsCollector1.Successor = null;
|
|---|
| 375 | comparisonFactorInitializer.Successor = analyzer1;
|
|---|
| 376 | analyzer1.Successor = resultsCollector1;
|
|---|
| 377 | resultsCollector1.Successor = resultsCollector2;
|
|---|
| 378 | resultsCollector2.Successor = uniformSubScopesProcessor1;
|
|---|
| 379 | uniformSubScopesProcessor1.Operator = islandTerminatedBySelectionPressure1;
|
|---|
| 380 | uniformSubScopesProcessor1.Successor = generationsCounter;
|
|---|
| 381 | islandTerminatedBySelectionPressure1.TrueBranch = null;
|
|---|
| 382 | islandTerminatedBySelectionPressure1.FalseBranch = mainOperator;
|
|---|
| 383 | islandTerminatedBySelectionPressure1.Successor = null;
|
|---|
| 384 | mainOperator.Successor = islandAnalyzer2;
|
|---|
| 385 | islandAnalyzer2.Successor = islandResultsCollector2;
|
|---|
| 386 | islandResultsCollector2.Successor = islandEvaluatedSolutionsCounter;
|
|---|
| 387 | islandEvaluatedSolutionsCounter.Successor = islandEvaluatedSolutionsAssigner;
|
|---|
| 388 | islandEvaluatedSolutionsAssigner.Successor = islandSelectionPressureComparator;
|
|---|
| 389 | islandSelectionPressureComparator.Successor = islandTerminatedBySelectionPressure2;
|
|---|
| 390 | islandTerminatedBySelectionPressure2.TrueBranch = terminatedIslandsCounter;
|
|---|
| 391 | islandTerminatedBySelectionPressure2.FalseBranch = null;
|
|---|
| 392 | islandTerminatedBySelectionPressure2.Successor = null;
|
|---|
| 393 | generationsCounter.Successor = generationsSinceLastMigrationCounter;
|
|---|
| 394 | generationsSinceLastMigrationCounter.Successor = migrationComparator;
|
|---|
| 395 | migrationComparator.Successor = migrationBranch;
|
|---|
| 396 | migrationBranch.TrueBranch = resetTerminatedIslandsAssigner;
|
|---|
| 397 | migrationBranch.FalseBranch = null;
|
|---|
| 398 | migrationBranch.Successor = generationsComparator;
|
|---|
| 399 | resetTerminatedIslandsAssigner.Successor = resetGenerationsSinceLastMigrationAssigner;
|
|---|
| 400 | resetGenerationsSinceLastMigrationAssigner.Successor = migrationsCounter;
|
|---|
| 401 | migrationsCounter.Successor = uniformSubScopesProcessor2;
|
|---|
| 402 | uniformSubScopesProcessor2.Operator = reviveIslandAssigner;
|
|---|
| 403 | uniformSubScopesProcessor2.Successor = migrator;
|
|---|
| 404 | reviveIslandAssigner.Successor = emigrantsSelector;
|
|---|
| 405 | emigrantsSelector.Successor = null;
|
|---|
| 406 | migrator.Successor = uniformSubScopesProcessor3;
|
|---|
| 407 | uniformSubScopesProcessor3.Operator = immigrationReplacer;
|
|---|
| 408 | uniformSubScopesProcessor3.Successor = null;
|
|---|
| 409 | immigrationReplacer.Successor = null;
|
|---|
| 410 | generationsComparator.Successor = terminatedIslandsComparator;
|
|---|
| 411 | terminatedIslandsComparator.Successor = comparisonFactorModifier;
|
|---|
| 412 | comparisonFactorModifier.Successor = analyzer2;
|
|---|
| 413 | analyzer2.Successor = resultsCollector3;
|
|---|
| 414 | resultsCollector3.Successor = generationsTerminationCondition;
|
|---|
| 415 | generationsTerminationCondition.TrueBranch = null;
|
|---|
| 416 | generationsTerminationCondition.FalseBranch = terminatedIslandsCondition;
|
|---|
| 417 | generationsTerminationCondition.Successor = null;
|
|---|
| 418 | terminatedIslandsCondition.TrueBranch = null;
|
|---|
| 419 | terminatedIslandsCondition.FalseBranch = uniformSubScopesProcessor1;
|
|---|
| 420 | terminatedIslandsCondition.Successor = null;
|
|---|
| 421 | #endregion
|
|---|
| 422 | }
|
|---|
| 423 |
|
|---|
| 424 | public override IOperation Apply() {
|
|---|
| 425 | if (CrossoverParameter.ActualValue == null)
|
|---|
| 426 | return null;
|
|---|
| 427 | return base.Apply();
|
|---|
| 428 | }
|
|---|
| 429 | }
|
|---|
| 430 | }
|
|---|
