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 HeuristicLab.Common;
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23 | using HeuristicLab.Core;
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24 | using HeuristicLab.Data;
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25 | using HeuristicLab.Operators;
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26 | using HeuristicLab.Optimization;
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27 | using HeuristicLab.Optimization.Operators;
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28 | using HeuristicLab.Parameters;
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29 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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30 |
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31 | namespace HeuristicLab.Algorithms.OffspringSelectionGeneticAlgorithm {
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32 | /// <summary>
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33 | /// An island offspring selection genetic algorithm main loop operator.
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34 | /// </summary>
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35 | [Item("IslandOffspringSelectionGeneticAlgorithmMainLoop", "An island offspring selection genetic algorithm main loop operator.")]
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36 | [StorableClass]
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37 | public sealed class IslandOffspringSelectionGeneticAlgorithmMainLoop : AlgorithmOperator {
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38 | #region Parameter Properties
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39 | public ValueLookupParameter<IRandom> RandomParameter {
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40 | get { return (ValueLookupParameter<IRandom>)Parameters["Random"]; }
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41 | }
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42 | public ValueLookupParameter<BoolValue> MaximizationParameter {
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43 | get { return (ValueLookupParameter<BoolValue>)Parameters["Maximization"]; }
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44 | }
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45 | public ScopeTreeLookupParameter<DoubleValue> QualityParameter {
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46 | get { return (ScopeTreeLookupParameter<DoubleValue>)Parameters["Quality"]; }
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47 | }
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48 | public ValueLookupParameter<DoubleValue> BestKnownQualityParameter {
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49 | get { return (ValueLookupParameter<DoubleValue>)Parameters["BestKnownQuality"]; }
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50 | }
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51 | public ValueLookupParameter<IntValue> NumberOfIslandsParameter {
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52 | get { return (ValueLookupParameter<IntValue>)Parameters["NumberOfIslands"]; }
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53 | }
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54 | public ValueLookupParameter<IntValue> MigrationIntervalParameter {
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55 | get { return (ValueLookupParameter<IntValue>)Parameters["MigrationInterval"]; }
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56 | }
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57 | public ValueLookupParameter<PercentValue> MigrationRateParameter {
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58 | get { return (ValueLookupParameter<PercentValue>)Parameters["MigrationRate"]; }
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59 | }
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60 | public ValueLookupParameter<IOperator> MigratorParameter {
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61 | get { return (ValueLookupParameter<IOperator>)Parameters["Migrator"]; }
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62 | }
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63 | public ValueLookupParameter<IOperator> EmigrantsSelectorParameter {
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64 | get { return (ValueLookupParameter<IOperator>)Parameters["EmigrantsSelector"]; }
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65 | }
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66 | public ValueLookupParameter<IOperator> ImmigrationReplacerParameter {
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67 | get { return (ValueLookupParameter<IOperator>)Parameters["ImmigrationReplacer"]; }
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68 | }
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69 | public ValueLookupParameter<IntValue> PopulationSizeParameter {
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70 | get { return (ValueLookupParameter<IntValue>)Parameters["PopulationSize"]; }
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71 | }
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72 | public ValueLookupParameter<IntValue> MaximumGenerationsParameter {
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73 | get { return (ValueLookupParameter<IntValue>)Parameters["MaximumGenerations"]; }
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74 | }
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75 | public ValueLookupParameter<IOperator> SelectorParameter {
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76 | get { return (ValueLookupParameter<IOperator>)Parameters["Selector"]; }
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77 | }
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78 | public ValueLookupParameter<IOperator> CrossoverParameter {
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79 | get { return (ValueLookupParameter<IOperator>)Parameters["Crossover"]; }
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80 | }
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81 | public ValueLookupParameter<PercentValue> MutationProbabilityParameter {
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82 | get { return (ValueLookupParameter<PercentValue>)Parameters["MutationProbability"]; }
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83 | }
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84 | public ValueLookupParameter<IOperator> MutatorParameter {
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85 | get { return (ValueLookupParameter<IOperator>)Parameters["Mutator"]; }
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86 | }
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87 | public ValueLookupParameter<IOperator> EvaluatorParameter {
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88 | get { return (ValueLookupParameter<IOperator>)Parameters["Evaluator"]; }
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89 | }
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90 | public ValueLookupParameter<IntValue> ElitesParameter {
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91 | get { return (ValueLookupParameter<IntValue>)Parameters["Elites"]; }
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92 | }
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93 | public ValueLookupParameter<ResultCollection> ResultsParameter {
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94 | get { return (ValueLookupParameter<ResultCollection>)Parameters["Results"]; }
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95 | }
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96 | public ValueLookupParameter<IOperator> VisualizerParameter {
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97 | get { return (ValueLookupParameter<IOperator>)Parameters["Visualizer"]; }
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98 | }
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99 | public LookupParameter<IItem> VisualizationParameter {
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100 | get { return (LookupParameter<IItem>)Parameters["Visualization"]; }
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101 | }
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102 | public ValueLookupParameter<DoubleValue> SuccessRatioParameter {
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103 | get { return (ValueLookupParameter<DoubleValue>)Parameters["SuccessRatio"]; }
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104 | }
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105 | public LookupParameter<DoubleValue> ComparisonFactorParameter {
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106 | get { return (LookupParameter<DoubleValue>)Parameters["ComparisonFactor"]; }
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107 | }
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108 | public ValueLookupParameter<DoubleValue> ComparisonFactorStartParameter {
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109 | get { return (ValueLookupParameter<DoubleValue>)Parameters["ComparisonFactorStart"]; }
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110 | }
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111 | public ValueLookupParameter<IOperator> ComparisonFactorModifierParameter {
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112 | get { return (ValueLookupParameter<IOperator>)Parameters["ComparisonFactorModifier"]; }
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113 | }
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114 | public ValueLookupParameter<DoubleValue> MaximumSelectionPressureParameter {
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115 | get { return (ValueLookupParameter<DoubleValue>)Parameters["MaximumSelectionPressure"]; }
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116 | }
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117 | public ValueLookupParameter<BoolValue> OffspringSelectionBeforeMutationParameter {
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118 | get { return (ValueLookupParameter<BoolValue>)Parameters["OffspringSelectionBeforeMutation"]; }
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119 | }
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120 | public ValueLookupParameter<IOperator> AnalyzerParameter {
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121 | get { return (ValueLookupParameter<IOperator>)Parameters["Analyzer"]; }
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122 | }
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123 | public ValueLookupParameter<IOperator> IslandAnalyzerParameter {
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124 | get { return (ValueLookupParameter<IOperator>)Parameters["IslandAnalyzer"]; }
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125 | }
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126 | #endregion
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127 |
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128 | [StorableConstructor]
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129 | private IslandOffspringSelectionGeneticAlgorithmMainLoop(bool deserializing) : base(deserializing) { }
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130 | private IslandOffspringSelectionGeneticAlgorithmMainLoop(IslandOffspringSelectionGeneticAlgorithmMainLoop original, Cloner cloner)
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131 | : base(original, cloner) {
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132 | }
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133 | public override IDeepCloneable Clone(Cloner cloner) {
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134 | return new IslandOffspringSelectionGeneticAlgorithmMainLoop(this, cloner);
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135 | }
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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. This operator is executed in parallel, if an engine is used which supports parallelization."));
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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 | Comparator maxEvaluatedSolutionsComparator = new Comparator();
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206 | Placeholder comparisonFactorModifier = new Placeholder();
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207 | Placeholder analyzer2 = new Placeholder();
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208 | ResultsCollector resultsCollector3 = new ResultsCollector();
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209 | ConditionalBranch generationsTerminationCondition = new ConditionalBranch();
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210 | ConditionalBranch terminatedIslandsCondition = new ConditionalBranch();
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211 | ConditionalBranch evaluatedSolutionsTerminationCondition = new ConditionalBranch();
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212 |
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213 | variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("Migrations", new IntValue(0)));
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214 | variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("Generations", new IntValue(0))); // Class IslandOffspringSelectionGeneticAlgorithm expects this to be called Generations
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215 | variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("GenerationsSinceLastMigration", new IntValue(0)));
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216 | variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("TerminatedIslands", new IntValue(0)));
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217 | variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("EvaluatedSolutions", new IntValue(0)));
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218 |
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219 | islandVariableCreator.CollectedValues.Add(new ValueParameter<ResultCollection>(ResultsParameter.Name, new ResultCollection()));
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220 | islandVariableCreator.CollectedValues.Add(new ValueParameter<IntValue>("IslandEvaluatedSolutions", new IntValue(0)));
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221 | islandVariableCreator.CollectedValues.Add(new ValueParameter<BoolValue>("TerminateSelectionPressure", new BoolValue(false)));
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222 | islandVariableCreator.CollectedValues.Add(new ValueParameter<DoubleValue>("SelectionPressure", new DoubleValue(0)));
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223 |
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224 | islandAnalyzer1.Name = "Island Analyzer (placeholder)";
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225 | islandAnalyzer1.OperatorParameter.ActualName = IslandAnalyzerParameter.Name;
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226 |
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227 | islandResultsCollector1.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Selection Pressure", null, "SelectionPressure"));
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228 | islandResultsCollector1.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Success Ratio", null, "CurrentSuccessRatio"));
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229 | islandResultsCollector1.ResultsParameter.ActualName = ResultsParameter.Name;
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230 |
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231 | comparisonFactorInitializer.Name = "Initialize Comparison Factor";
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232 | comparisonFactorInitializer.LeftSideParameter.ActualName = ComparisonFactorParameter.Name;
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233 | comparisonFactorInitializer.RightSideParameter.ActualName = ComparisonFactorStartParameter.Name;
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234 |
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235 | analyzer1.Name = "Analyzer (placeholder)";
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236 | analyzer1.OperatorParameter.ActualName = AnalyzerParameter.Name;
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237 |
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238 | resultsCollector1.CopyValue = new BoolValue(false);
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239 | resultsCollector1.CollectedValues.Add(new LookupParameter<IntValue>("Migrations"));
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240 | resultsCollector1.CollectedValues.Add(new LookupParameter<IntValue>("Generations"));
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241 | resultsCollector1.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Comparison Factor", null, ComparisonFactorParameter.Name));
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242 | resultsCollector1.CollectedValues.Add(new ScopeTreeLookupParameter<ResultCollection>("IslandResults", "Result set for each island", ResultsParameter.Name));
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243 | resultsCollector1.ResultsParameter.ActualName = ResultsParameter.Name;
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244 |
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245 | resultsCollector2.CopyValue = new BoolValue(true);
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246 | resultsCollector2.CollectedValues.Add(new LookupParameter<IntValue>("Evaluated Solutions", null, "EvaluatedSolutions"));
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247 | resultsCollector2.ResultsParameter.ActualName = ResultsParameter.Name;
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248 |
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249 | islandTerminatedBySelectionPressure1.Name = "Island Terminated ?";
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250 | islandTerminatedBySelectionPressure1.ConditionParameter.ActualName = "TerminateSelectionPressure";
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251 |
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252 | mainOperator.ComparisonFactorParameter.ActualName = ComparisonFactorParameter.Name;
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253 | mainOperator.CrossoverParameter.ActualName = CrossoverParameter.Name;
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254 | mainOperator.CurrentSuccessRatioParameter.ActualName = "CurrentSuccessRatio";
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255 | mainOperator.ElitesParameter.ActualName = ElitesParameter.Name;
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256 | mainOperator.EvaluatedSolutionsParameter.ActualName = "IslandEvaluatedSolutions";
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257 | mainOperator.EvaluatorParameter.ActualName = EvaluatorParameter.Name;
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258 | mainOperator.MaximizationParameter.ActualName = MaximizationParameter.Name;
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259 | mainOperator.MaximumSelectionPressureParameter.ActualName = MaximumSelectionPressureParameter.Name;
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260 | mainOperator.MutationProbabilityParameter.ActualName = MutationProbabilityParameter.Name;
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261 | mainOperator.MutatorParameter.ActualName = MutatorParameter.Name;
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262 | mainOperator.OffspringSelectionBeforeMutationParameter.ActualName = OffspringSelectionBeforeMutationParameter.Name;
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263 | mainOperator.QualityParameter.ActualName = QualityParameter.Name;
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264 | mainOperator.RandomParameter.ActualName = RandomParameter.Name;
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265 | mainOperator.SelectionPressureParameter.ActualName = "SelectionPressure";
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266 | mainOperator.SelectorParameter.ActualName = SelectorParameter.Name;
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267 | mainOperator.SuccessRatioParameter.ActualName = SuccessRatioParameter.Name;
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268 |
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269 | islandAnalyzer2.Name = "Island Analyzer (placeholder)";
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270 | islandAnalyzer2.OperatorParameter.ActualName = IslandAnalyzerParameter.Name;
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271 |
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272 | islandResultsCollector2.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Selection Pressure", null, "SelectionPressure"));
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273 | islandResultsCollector2.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Success Ratio", null, "CurrentSuccessRatio"));
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274 | islandResultsCollector2.ResultsParameter.ActualName = "Results";
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275 |
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276 | islandEvaluatedSolutionsCounter.Name = "Update EvaluatedSolutions";
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277 | islandEvaluatedSolutionsCounter.ValueParameter.ActualName = "EvaluatedSolutions";
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278 | islandEvaluatedSolutionsCounter.Increment = null;
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279 | islandEvaluatedSolutionsCounter.IncrementParameter.ActualName = "IslandEvaluatedSolutions";
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280 |
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281 | islandEvaluatedSolutionsAssigner.Name = "Reset EvaluatedSolutions";
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282 | islandEvaluatedSolutionsAssigner.LeftSideParameter.ActualName = "IslandEvaluatedSolutions";
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283 | islandEvaluatedSolutionsAssigner.RightSideParameter.Value = new IntValue(0);
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284 |
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285 | islandSelectionPressureComparator.Name = "SelectionPressure >= MaximumSelectionPressure ?";
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286 | islandSelectionPressureComparator.LeftSideParameter.ActualName = "SelectionPressure";
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287 | islandSelectionPressureComparator.Comparison = new Comparison(ComparisonType.GreaterOrEqual);
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288 | islandSelectionPressureComparator.RightSideParameter.ActualName = MaximumSelectionPressureParameter.Name;
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289 | islandSelectionPressureComparator.ResultParameter.ActualName = "TerminateSelectionPressure";
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290 |
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291 | islandTerminatedBySelectionPressure2.Name = "Island Terminated ?";
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292 | islandTerminatedBySelectionPressure2.ConditionParameter.ActualName = "TerminateSelectionPressure";
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293 |
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294 | terminatedIslandsCounter.Name = "TerminatedIslands + 1";
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295 | terminatedIslandsCounter.ValueParameter.ActualName = "TerminatedIslands";
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296 | terminatedIslandsCounter.Increment = new IntValue(1);
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297 |
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298 | generationsCounter.Name = "Generations + 1";
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299 | generationsCounter.ValueParameter.ActualName = "Generations";
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300 | generationsCounter.Increment = new IntValue(1);
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301 |
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302 | generationsSinceLastMigrationCounter.Name = "GenerationsSinceLastMigration + 1";
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303 | generationsSinceLastMigrationCounter.ValueParameter.ActualName = "GenerationsSinceLastMigration";
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304 | generationsSinceLastMigrationCounter.Increment = new IntValue(1);
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305 |
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306 | migrationComparator.Name = "GenerationsSinceLastMigration = MigrationInterval ?";
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307 | migrationComparator.LeftSideParameter.ActualName = "GenerationsSinceLastMigration";
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308 | migrationComparator.Comparison = new Comparison(ComparisonType.Equal);
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309 | migrationComparator.RightSideParameter.ActualName = MigrationIntervalParameter.Name;
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310 | migrationComparator.ResultParameter.ActualName = "Migrate";
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311 |
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312 | migrationBranch.Name = "Migrate?";
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313 | migrationBranch.ConditionParameter.ActualName = "Migrate";
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314 |
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315 | resetTerminatedIslandsAssigner.Name = "Reset TerminatedIslands";
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316 | resetTerminatedIslandsAssigner.LeftSideParameter.ActualName = "TerminatedIslands";
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317 | resetTerminatedIslandsAssigner.RightSideParameter.Value = new IntValue(0);
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318 |
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319 | resetGenerationsSinceLastMigrationAssigner.Name = "Reset GenerationsSinceLastMigration";
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320 | resetGenerationsSinceLastMigrationAssigner.LeftSideParameter.ActualName = "GenerationsSinceLastMigration";
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321 | resetGenerationsSinceLastMigrationAssigner.RightSideParameter.Value = new IntValue(0);
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322 |
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323 | migrationsCounter.Name = "Migrations + 1";
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324 | migrationsCounter.IncrementParameter.Value = new IntValue(1);
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325 | migrationsCounter.ValueParameter.ActualName = "Migrations";
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326 |
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327 | reviveIslandAssigner.Name = "Revive Island";
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328 | reviveIslandAssigner.LeftSideParameter.ActualName = "TerminateSelectionPressure";
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329 | reviveIslandAssigner.RightSideParameter.Value = new BoolValue(false);
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330 |
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331 | emigrantsSelector.Name = "Emigrants Selector (placeholder)";
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332 | emigrantsSelector.OperatorParameter.ActualName = EmigrantsSelectorParameter.Name;
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333 |
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334 | migrator.Name = "Migrator (placeholder)";
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335 | migrator.OperatorParameter.ActualName = MigratorParameter.Name;
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336 |
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337 | immigrationReplacer.Name = "Immigration Replacer (placeholder)";
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338 | immigrationReplacer.OperatorParameter.ActualName = ImmigrationReplacerParameter.Name;
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339 |
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340 | generationsComparator.Name = "Generations >= MaximumGenerations ?";
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341 | generationsComparator.LeftSideParameter.ActualName = "Generations";
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342 | generationsComparator.Comparison = new Comparison(ComparisonType.GreaterOrEqual);
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343 | generationsComparator.RightSideParameter.ActualName = MaximumGenerationsParameter.Name;
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344 | generationsComparator.ResultParameter.ActualName = "TerminateGenerations";
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345 |
|
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346 | terminatedIslandsComparator.Name = "All Islands terminated ?";
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347 | terminatedIslandsComparator.LeftSideParameter.ActualName = "TerminatedIslands";
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348 | terminatedIslandsComparator.Comparison = new Comparison(ComparisonType.GreaterOrEqual);
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349 | terminatedIslandsComparator.RightSideParameter.ActualName = NumberOfIslandsParameter.Name;
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350 | terminatedIslandsComparator.ResultParameter.ActualName = "TerminateTerminatedIslands";
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351 |
|
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352 | maxEvaluatedSolutionsComparator.Name = "EvaluatedSolutions >= MaximumEvaluatedSolutions ?";
|
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353 | maxEvaluatedSolutionsComparator.Comparison = new Comparison(ComparisonType.GreaterOrEqual);
|
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354 | maxEvaluatedSolutionsComparator.LeftSideParameter.ActualName = "EvaluatedSolutions";
|
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355 | maxEvaluatedSolutionsComparator.ResultParameter.ActualName = "TerminateEvaluatedSolutions";
|
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356 | maxEvaluatedSolutionsComparator.RightSideParameter.ActualName = "MaximumEvaluatedSolutions";
|
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357 |
|
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358 | comparisonFactorModifier.Name = "Update Comparison Factor (Placeholder)";
|
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359 | comparisonFactorModifier.OperatorParameter.ActualName = ComparisonFactorModifierParameter.Name;
|
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360 |
|
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361 | analyzer2.Name = "Analyzer (placeholder)";
|
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362 | analyzer2.OperatorParameter.ActualName = AnalyzerParameter.Name;
|
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363 |
|
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364 | resultsCollector3.CopyValue = new BoolValue(true);
|
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365 | resultsCollector3.CollectedValues.Add(new LookupParameter<IntValue>("Evaluated Solutions", null, "EvaluatedSolutions"));
|
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366 | resultsCollector3.ResultsParameter.ActualName = ResultsParameter.Name;
|
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367 |
|
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368 | generationsTerminationCondition.Name = "Terminate (MaxGenerations) ?";
|
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369 | generationsTerminationCondition.ConditionParameter.ActualName = "TerminateGenerations";
|
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370 |
|
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371 | terminatedIslandsCondition.Name = "Terminate (TerminatedIslands) ?";
|
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372 | terminatedIslandsCondition.ConditionParameter.ActualName = "TerminateTerminatedIslands";
|
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373 |
|
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374 | evaluatedSolutionsTerminationCondition.Name = "Terminate (EvaluatedSolutions) ?";
|
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375 | evaluatedSolutionsTerminationCondition.ConditionParameter.ActualName = "TerminateEvaluatedSolutions";
|
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376 | #endregion
|
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377 |
|
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378 | #region Create operator graph
|
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379 | OperatorGraph.InitialOperator = variableCreator;
|
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380 | variableCreator.Successor = uniformSubScopesProcessor0;
|
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381 | uniformSubScopesProcessor0.Operator = islandVariableCreator;
|
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382 | uniformSubScopesProcessor0.Successor = comparisonFactorInitializer;
|
---|
383 | islandVariableCreator.Successor = islandAnalyzer1;
|
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384 | islandAnalyzer1.Successor = islandResultsCollector1;
|
---|
385 | islandResultsCollector1.Successor = null;
|
---|
386 | comparisonFactorInitializer.Successor = analyzer1;
|
---|
387 | analyzer1.Successor = resultsCollector1;
|
---|
388 | resultsCollector1.Successor = resultsCollector2;
|
---|
389 | resultsCollector2.Successor = uniformSubScopesProcessor1;
|
---|
390 | uniformSubScopesProcessor1.Operator = islandTerminatedBySelectionPressure1;
|
---|
391 | uniformSubScopesProcessor1.Successor = generationsCounter;
|
---|
392 | islandTerminatedBySelectionPressure1.TrueBranch = null;
|
---|
393 | islandTerminatedBySelectionPressure1.FalseBranch = mainOperator;
|
---|
394 | islandTerminatedBySelectionPressure1.Successor = null;
|
---|
395 | mainOperator.Successor = islandAnalyzer2;
|
---|
396 | islandAnalyzer2.Successor = islandResultsCollector2;
|
---|
397 | islandResultsCollector2.Successor = islandEvaluatedSolutionsCounter;
|
---|
398 | islandEvaluatedSolutionsCounter.Successor = islandEvaluatedSolutionsAssigner;
|
---|
399 | islandEvaluatedSolutionsAssigner.Successor = islandSelectionPressureComparator;
|
---|
400 | islandSelectionPressureComparator.Successor = islandTerminatedBySelectionPressure2;
|
---|
401 | islandTerminatedBySelectionPressure2.TrueBranch = terminatedIslandsCounter;
|
---|
402 | islandTerminatedBySelectionPressure2.FalseBranch = null;
|
---|
403 | islandTerminatedBySelectionPressure2.Successor = null;
|
---|
404 | generationsCounter.Successor = generationsSinceLastMigrationCounter;
|
---|
405 | generationsSinceLastMigrationCounter.Successor = migrationComparator;
|
---|
406 | migrationComparator.Successor = migrationBranch;
|
---|
407 | migrationBranch.TrueBranch = resetTerminatedIslandsAssigner;
|
---|
408 | migrationBranch.FalseBranch = null;
|
---|
409 | migrationBranch.Successor = generationsComparator;
|
---|
410 | resetTerminatedIslandsAssigner.Successor = resetGenerationsSinceLastMigrationAssigner;
|
---|
411 | resetGenerationsSinceLastMigrationAssigner.Successor = migrationsCounter;
|
---|
412 | migrationsCounter.Successor = uniformSubScopesProcessor2;
|
---|
413 | uniformSubScopesProcessor2.Operator = reviveIslandAssigner;
|
---|
414 | uniformSubScopesProcessor2.Successor = migrator;
|
---|
415 | reviveIslandAssigner.Successor = emigrantsSelector;
|
---|
416 | emigrantsSelector.Successor = null;
|
---|
417 | migrator.Successor = uniformSubScopesProcessor3;
|
---|
418 | uniformSubScopesProcessor3.Operator = immigrationReplacer;
|
---|
419 | uniformSubScopesProcessor3.Successor = null;
|
---|
420 | immigrationReplacer.Successor = null;
|
---|
421 | generationsComparator.Successor = terminatedIslandsComparator;
|
---|
422 | terminatedIslandsComparator.Successor = maxEvaluatedSolutionsComparator;
|
---|
423 | maxEvaluatedSolutionsComparator.Successor = comparisonFactorModifier;
|
---|
424 | comparisonFactorModifier.Successor = analyzer2;
|
---|
425 | analyzer2.Successor = resultsCollector3;
|
---|
426 | resultsCollector3.Successor = generationsTerminationCondition;
|
---|
427 | generationsTerminationCondition.TrueBranch = null;
|
---|
428 | generationsTerminationCondition.FalseBranch = terminatedIslandsCondition;
|
---|
429 | generationsTerminationCondition.Successor = null;
|
---|
430 | terminatedIslandsCondition.TrueBranch = null;
|
---|
431 | terminatedIslandsCondition.FalseBranch = evaluatedSolutionsTerminationCondition;
|
---|
432 | terminatedIslandsCondition.Successor = null;
|
---|
433 | evaluatedSolutionsTerminationCondition.TrueBranch = null;
|
---|
434 | evaluatedSolutionsTerminationCondition.FalseBranch = uniformSubScopesProcessor1;
|
---|
435 | evaluatedSolutionsTerminationCondition.Successor = null;
|
---|
436 | #endregion
|
---|
437 | }
|
---|
438 |
|
---|
439 | public override IOperation Apply() {
|
---|
440 | if (CrossoverParameter.ActualValue == null)
|
---|
441 | return null;
|
---|
442 | return base.Apply();
|
---|
443 | }
|
---|
444 | }
|
---|
445 | }
|
---|