1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2019 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 HEAL.Attic;
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23 | using HeuristicLab.Algorithms.DataAnalysis;
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24 | using HeuristicLab.Analysis;
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25 | using HeuristicLab.Common;
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26 | using HeuristicLab.Core;
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27 | using HeuristicLab.Data;
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28 | using HeuristicLab.Optimization;
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29 | using HeuristicLab.Parameters;
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30 | using HeuristicLab.PluginInfrastructure;
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31 | using HeuristicLab.Problems.DataAnalysis;
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32 | using HeuristicLab.Problems.DataAnalysis.Symbolic;
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33 | using HeuristicLab.Random;
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34 | using System;
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35 | using System.Collections.Generic;
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36 | using System.Linq;
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37 | using CancellationToken = System.Threading.CancellationToken;
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38 | using ExecutionContext = HeuristicLab.Core.ExecutionContext;
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39 |
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40 | namespace HeuristicLab.Algorithms.EvolvmentModelsOfModels {
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41 | [Item("MOEADAlgorithmBase", "Base class for all MOEA/D algorithm variants.")]
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42 | [StorableType("A56A396B-965A-4ADE-8A2B-AE3A45F9C239")]
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43 | public abstract class EvolvmentModelsOfModelsAlgorithmBase : FixedDataAnalysisAlgorithm<ISymbolicDataAnalysisSingleObjectiveProblem> {
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44 | #region data members
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45 | [Storable]
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46 | protected IList<IEMMSolution> Solutions;
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47 | [Storable]
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48 | protected List<IEMMSolution> Population;
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49 | [Storable]
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50 | protected int EvaluatedSolutions;
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51 | [Storable]
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52 | protected ExecutionContext executionContext;
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53 | [Storable]
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54 | protected IScope globalScope;
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55 | [Storable]
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56 | protected ExecutionState previousExecutionState;
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57 | #endregion
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58 |
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59 | #region parameters
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60 | private const string SeedParameterName = "Seed";
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61 | private const string SetSeedRandomlyParameterName = "SetSeedRandomly";
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62 | private const string PopulationSizeParameterName = "PopulationSize";
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63 | private const string SelectorParameterName = "Selector";
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64 | private const string GroupSizeParameterName = "GroupSize";
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65 | private const string CrossoverProbabilityParameterName = "CrossoverProbability";
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66 | private const string CrossoverParameterName = "Crossover";
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67 | private const string MutationProbabilityParameterName = "MutationProbability";
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68 | private const string MutatorParameterName = "Mutator";
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69 | private const string MaximumEvaluatedSolutionsParameterName = "MaximumEvaluatedSolutions";
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70 | private const string RandomParameterName = "Random";
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71 | private const string AnalyzerParameterName = "Analyzer";
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72 | private const string InputFileParameterName = "InputFile";
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73 | private const string ClusterNumbersParameterName = "ClusterNumbers";
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74 | private const string AlgorithmImplementationTypeParameterName = "AlgorithmImplemetationType";
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75 | private const string MapCreationTypeParameterName = "MapCreationType";
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76 | private const string NegbourTypeParameterName = "NegbourType";
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77 | private const string NegbourNumberParameterName = "NegbourNumber";
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78 | public IValueParameter<MultiAnalyzer> AnalyzerParameter {
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79 | get { return (ValueParameter<MultiAnalyzer>)Parameters[AnalyzerParameterName]; }
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80 | }
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81 | public IFixedValueParameter<IntValue> SeedParameter {
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82 | get { return (IFixedValueParameter<IntValue>)Parameters[SeedParameterName]; }
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83 | }
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84 | public IValueParameter<IntValue> ClusterNumbersParameter {
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85 | get { return (IValueParameter<IntValue>)Parameters[ClusterNumbersParameterName]; }
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86 | }
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87 | public IFixedValueParameter<StringValue> AlgorithmImplementationTypeParameter {
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88 | get { return (IFixedValueParameter<StringValue>)Parameters[AlgorithmImplementationTypeParameterName]; }
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89 | }
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90 | public IFixedValueParameter<StringValue> MapCreationTypeParameter {
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91 | get { return (IFixedValueParameter<StringValue>)Parameters[MapCreationTypeParameterName]; }
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92 | }
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93 | public IFixedValueParameter<StringValue> NegbourTypeParameter {
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94 | get { return (IFixedValueParameter<StringValue>)Parameters[NegbourTypeParameterName]; }
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95 | }
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96 | public IFixedValueParameter<IntValue> NegbourNumberParameter {
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97 | get { return (IFixedValueParameter<IntValue>)Parameters[NegbourNumberParameterName]; }
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98 | }
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99 | public IFixedValueParameter<StringValue> InputFileParameter {
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100 | get { return (IFixedValueParameter<StringValue>)Parameters[InputFileParameterName]; }
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101 | }
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102 | public IFixedValueParameter<BoolValue> SetSeedRandomlyParameter {
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103 | get { return (IFixedValueParameter<BoolValue>)Parameters[SetSeedRandomlyParameterName]; }
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104 | }
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105 | private IValueParameter<IntValue> PopulationSizeParameter {
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106 | get { return (IValueParameter<IntValue>)Parameters[PopulationSizeParameterName]; }
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107 | }
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108 | public IValueParameter<PercentValue> CrossoverProbabilityParameter {
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109 | get { return (IValueParameter<PercentValue>)Parameters[CrossoverProbabilityParameterName]; }
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110 | }
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111 | public IValueParameter<IntValue> GroupSizeParameter {
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112 | get { return (IValueParameter<IntValue>)Parameters[GroupSizeParameterName]; }
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113 | }
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114 | public IConstrainedValueParameter<ICrossover> CrossoverParameter {
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115 | get { return (IConstrainedValueParameter<ICrossover>)Parameters[CrossoverParameterName]; }
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116 | }
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117 | public IConstrainedValueParameter<ISelector> SelectorParameter {
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118 | get { return (IConstrainedValueParameter<ISelector>)Parameters[SelectorParameterName]; }
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119 | }
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120 | public IValueParameter<PercentValue> MutationProbabilityParameter {
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121 | get { return (IValueParameter<PercentValue>)Parameters[MutationProbabilityParameterName]; }
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122 | }
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123 | public IConstrainedValueParameter<IManipulator> MutatorParameter {
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124 | get { return (IConstrainedValueParameter<IManipulator>)Parameters[MutatorParameterName]; }
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125 | }
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126 | public IValueParameter<IntValue> MaximumEvaluatedSolutionsParameter {
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127 | get { return (IValueParameter<IntValue>)Parameters[MaximumEvaluatedSolutionsParameterName]; }
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128 | }
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129 | public IValueParameter<IRandom> RandomParameter {
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130 | get { return (IValueParameter<IRandom>)Parameters[RandomParameterName]; }
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131 | }
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132 | #endregion
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133 |
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134 | #region parameter properties
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135 | public ValueParameter<IntValue> ElitesParameter {
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136 | get { return (ValueParameter<IntValue>)Parameters["Elites"]; }
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137 | }
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138 | public int Seed {
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139 | get { return SeedParameter.Value.Value; }
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140 | set { SeedParameter.Value.Value = value; }
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141 | }
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142 | public IntValue ClusterNumbers {
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143 | get { return ClusterNumbersParameter.Value; }
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144 | set { ClusterNumbersParameter.Value = value; }
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145 | }
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146 | public StringValue AlgorithmImplemetationType {
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147 | get { return AlgorithmImplementationTypeParameter.Value; }
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148 | set { AlgorithmImplementationTypeParameter.Value.Value = value.Value; }
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149 | }
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150 | public StringValue MapCreationType {
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151 | get { return MapCreationTypeParameter.Value; }
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152 | set { MapCreationTypeParameter.Value.Value = value.Value; }
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153 | }
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154 | public StringValue NegbourType {
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155 | get { return NegbourTypeParameter.Value; }
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156 | set { NegbourTypeParameter.Value.Value = value.Value; }
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157 | }
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158 | public IntValue NegbourNumber {
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159 | get { return NegbourNumberParameter.Value; }
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160 | set { NegbourNumberParameter.Value.Value = value.Value; }
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161 | }
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162 | public StringValue InputFile {
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163 | get { return InputFileParameter.Value; }
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164 | set { InputFileParameter.Value.Value = value.Value; }
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165 | }
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166 | public bool SetSeedRandomly {
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167 | get { return SetSeedRandomlyParameter.Value.Value; }
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168 | set { SetSeedRandomlyParameter.Value.Value = value; }
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169 | }
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170 | public IntValue PopulationSize {
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171 | get { return PopulationSizeParameter.Value; }
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172 | set { PopulationSizeParameter.Value = value; }
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173 | }
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174 | public PercentValue CrossoverProbability {
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175 | get { return CrossoverProbabilityParameter.Value; }
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176 | set { CrossoverProbabilityParameter.Value = value; }
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177 | }
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178 | public IntValue GroupSize {
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179 | get { return GroupSizeParameter.Value; }
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180 | set { GroupSizeParameter.Value = value; }
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181 | }
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182 | public ICrossover Crossover {
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183 | get { return CrossoverParameter.Value; }
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184 | set { CrossoverParameter.Value = value; }
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185 | }
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186 | public ISelector Selector {
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187 | get { return SelectorParameter.Value; }
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188 | set { SelectorParameter.Value = value; }
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189 | }
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190 | public PercentValue MutationProbability {
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191 | get { return MutationProbabilityParameter.Value; }
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192 | set { MutationProbabilityParameter.Value = value; }
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193 | }
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194 | public IManipulator Mutator {
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195 | get { return MutatorParameter.Value; }
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196 | set { MutatorParameter.Value = value; }
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197 | }
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198 | public MultiAnalyzer Analyzer {
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199 | get { return AnalyzerParameter.Value; }
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200 | set { AnalyzerParameter.Value = value; }
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201 | }
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202 | public IntValue MaximumEvaluatedSolutions {
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203 | get { return MaximumEvaluatedSolutionsParameter.Value; }
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204 | set { MaximumEvaluatedSolutionsParameter.Value = value; }
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205 | }
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206 | public IntValue Elites {
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207 | get { return ElitesParameter.Value; }
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208 | }
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209 | #endregion
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210 |
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211 | #region constructors
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212 | public EvolvmentModelsOfModelsAlgorithmBase() {
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213 |
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214 | Parameters.Add(new FixedValueParameter<IntValue>(SeedParameterName, "The random seed used to initialize the new pseudo random number generator.", new IntValue(0)));
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215 | Parameters.Add(new FixedValueParameter<StringValue>(InputFileParameterName, "The file with set of models that will be.", new StringValue("input.txt")));
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216 | Parameters.Add(new FixedValueParameter<StringValue>(AlgorithmImplementationTypeParameterName, "The Type of possible algorith, implemetation, choose one: OnlyMapCreation, CreateMapAndGo, ReadMapAndGo.", new StringValue("CreateMapAndGo")));
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217 | Parameters.Add(new FixedValueParameter<StringValue>(MapCreationTypeParameterName, "The type of map crearion algorithm. Use one from: IslandMap, FullMap.", new StringValue("IslandMap")));
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218 | Parameters.Add(new FixedValueParameter<IntValue>(NegbourNumberParameterName, "The parametr for FullMap type of map crearion algorithm. Use one from: 10, 20.", new IntValue(10)));
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219 | Parameters.Add(new FixedValueParameter<StringValue>(NegbourTypeParameterName, "The parametr for FullMap type of map crearion algorithm. Use one from: Percent, Number.", new StringValue("Number")));
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220 | Parameters.Add(new FixedValueParameter<BoolValue>(SetSeedRandomlyParameterName, "True if the random seed should be set to a random value, otherwise false.", new BoolValue(true)));
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221 | Parameters.Add(new ValueParameter<IntValue>(PopulationSizeParameterName, "The size of the population of Solutions.", new IntValue(100)));
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222 | Parameters.Add(new ConstrainedValueParameter<ISelector>(SelectorParameterName, "The operator used to sellect parents."));
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223 | Parameters.Add(new ValueParameter<PercentValue>(CrossoverProbabilityParameterName, "The probability that the crossover operator is applied.", new PercentValue(0.9)));
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224 | Parameters.Add(new ValueParameter<IntValue>(GroupSizeParameterName, "The GoupSize that the Selector operator is applied.", new IntValue(3)));
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225 | Parameters.Add(new ConstrainedValueParameter<ICrossover>(CrossoverParameterName, "The operator used to cross Solutions."));
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226 | Parameters.Add(new ValueParameter<PercentValue>(MutationProbabilityParameterName, "The probability that the mutation operator is applied on a solution.", new PercentValue(0.25)));
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227 | Parameters.Add(new ConstrainedValueParameter<IManipulator>(MutatorParameterName, "The operator used to mutate Solutions."));
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228 | Parameters.Add(new ValueParameter<MultiAnalyzer>("Analyzer", "The operator used to analyze each generation.", new MultiAnalyzer()));
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229 | Parameters.Add(new ValueParameter<IntValue>(MaximumEvaluatedSolutionsParameterName, "The maximum number of evaluated Solutions (approximately).", new IntValue(100_000)));
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230 | Parameters.Add(new ValueParameter<IRandom>(RandomParameterName, new MersenneTwister()));
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231 | Parameters.Add(new ValueParameter<IntValue>("Elites", "The numer of elite Solutions which are kept in each generation.", new IntValue(1)));
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232 | Parameters.Add(new ValueParameter<IntValue>(ClusterNumbersParameterName, "The number of clusters for model Map.", new IntValue(100)));
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233 | foreach (ISelector selector in ApplicationManager.Manager.GetInstances<ISelector>().Where(x => !(x is IMultiObjectiveSelector)).OrderBy(x => x.Name))
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234 | SelectorParameter.ValidValues.Add(selector);
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235 | ISelector proportionalSelector = SelectorParameter.ValidValues.FirstOrDefault(x => x.GetType().Name.Equals("ProportionalSelector"));
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236 | if (proportionalSelector != null) SelectorParameter.Value = proportionalSelector;
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237 | ParameterizeSelectors();
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238 |
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239 | ProblemChanged += EvolvmentModelsOfModelsAlgorithmBase_ProblemChanged;
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240 |
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241 | }
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242 |
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243 | private void EvolvmentModelsOfModelsAlgorithmBase_ProblemChanged(object sender, EventArgs e) {
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244 | if (Problem != null) {
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245 | Problem.SymbolicExpressionTreeInterpreter = new SymbolicDataAnalysisExpressionTreeBatchInterpreter();
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246 | //Problem.SymbolicExpressionTreeGrammar = new EMMGrammar();
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247 | }
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248 | }
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249 |
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250 | protected EvolvmentModelsOfModelsAlgorithmBase(EvolvmentModelsOfModelsAlgorithmBase original, Cloner cloner) : base(original, cloner) {
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251 | EvaluatedSolutions = original.EvaluatedSolutions;
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252 | previousExecutionState = original.previousExecutionState;
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253 |
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254 | if (original.Solutions != null) {
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255 | Solutions = original.Solutions.Select(cloner.Clone).ToArray();
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256 | }
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257 |
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258 | if (original.Population != null) {
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259 | Population = original.Population.Select(cloner.Clone).ToList();
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260 | }
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261 |
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262 | //if (original.offspringPopulation != null) {
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263 | // offspringPopulation = original.offspringPopulation.Select(cloner.Clone).ToList();
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264 | //}
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265 |
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266 | //if (original.jointPopulation != null) {
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267 | // jointPopulation = original.jointPopulation.Select(x => cloner.Clone(x)).ToList();
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268 | //}
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269 |
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270 | if (original.executionContext != null) {
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271 | executionContext = cloner.Clone(original.executionContext);
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272 | }
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273 |
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274 | if (original.globalScope != null) {
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275 | globalScope = cloner.Clone(original.globalScope);
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276 | }
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277 | }
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278 |
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279 | [StorableConstructor]
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280 | protected EvolvmentModelsOfModelsAlgorithmBase(StorableConstructorFlag _) : base(_) { }
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281 | #endregion
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282 |
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283 |
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284 | public override void Prepare() {
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285 | base.Prepare();
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286 | }
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287 |
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288 | protected override void Initialize(CancellationToken cancellationToken) {
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289 | base.Initialize(cancellationToken);
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290 | }
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291 |
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292 | public override bool SupportsPause => true;
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293 |
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294 | // implements random number generation from https://en.wikipedia.org/wiki/Dirichlet_distribution#Random_number_generation
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295 |
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296 | public IList<IEMMSolution> GetResult(IRandom random) {
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297 | return Population;
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298 | }
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299 |
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300 | #region operator wiring and events
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301 | private void ParameterizeStochasticOperator(IOperator op) {
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302 | IStochasticOperator stochasticOp = op as IStochasticOperator;
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303 | if (stochasticOp != null) {
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304 | stochasticOp.RandomParameter.ActualName = "Random";
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305 | stochasticOp.RandomParameter.Hidden = true;
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306 | }
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307 | }
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308 | private void ParameterizeSelectors() {
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309 | foreach (ISelector selector in SelectorParameter.ValidValues) {
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310 | selector.CopySelected = new BoolValue(true);
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311 | selector.NumberOfSelectedSubScopesParameter.Value = new IntValue(2 * (PopulationSizeParameter.Value.Value - ElitesParameter.Value.Value));
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312 | selector.NumberOfSelectedSubScopesParameter.Hidden = true;
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313 | ParameterizeStochasticOperator(selector);
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314 | }
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315 | if (Problem != null) {
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316 | foreach (ISingleObjectiveSelector selector in SelectorParameter.ValidValues.OfType<ISingleObjectiveSelector>()) {
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317 | selector.MaximizationParameter.ActualName = Problem.MaximizationParameter.Name;
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318 | selector.MaximizationParameter.Hidden = true;
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319 | selector.QualityParameter.ActualName = Problem.Evaluator.QualityParameter.ActualName;
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320 | selector.QualityParameter.Hidden = true;
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321 | }
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322 | }
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323 | }
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324 | protected void ExecuteOperation(ExecutionContext executionContext, CancellationToken cancellationToken, IOperation operation) {
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325 | Stack<IOperation> executionStack = new Stack<IOperation>();
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326 | executionStack.Push(operation);
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327 | while (executionStack.Count > 0) {
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328 | cancellationToken.ThrowIfCancellationRequested();
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329 | IOperation next = executionStack.Pop();
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330 | if (next is OperationCollection) {
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331 | OperationCollection coll = (OperationCollection)next;
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332 | for (int i = coll.Count - 1; i >= 0; i--)
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333 | if (coll[i] != null) executionStack.Push(coll[i]);
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334 | } else if (next is IAtomicOperation) {
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335 | IAtomicOperation op = (IAtomicOperation)next;
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336 | next = op.Operator.Execute((IExecutionContext)op, cancellationToken);
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337 | if (next != null) executionStack.Push(next);
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338 | }
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339 | }
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340 | }
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341 |
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342 | private void UpdateAnalyzers() {
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343 | Analyzer.Operators.Clear();
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344 | if (Problem != null) {
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345 | foreach (IAnalyzer analyzer in Problem.Operators.OfType<IAnalyzer>()) {
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346 | foreach (IScopeTreeLookupParameter param in analyzer.Parameters.OfType<IScopeTreeLookupParameter>())
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347 | param.Depth = 1;
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348 | Analyzer.Operators.Add(analyzer, analyzer.EnabledByDefault);
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349 | }
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350 | }
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351 | }
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352 |
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353 | private void UpdateCrossovers() {
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354 | ICrossover oldCrossover = CrossoverParameter.Value;
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355 | CrossoverParameter.ValidValues.Clear();
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356 | ICrossover defaultCrossover = Problem.Operators.OfType<ICrossover>().FirstOrDefault();
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357 |
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358 | foreach (ICrossover crossover in Problem.Operators.OfType<ICrossover>().OrderBy(x => x.Name))
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359 | CrossoverParameter.ValidValues.Add(crossover);
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360 |
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361 | if (oldCrossover != null) {
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362 | ICrossover crossover = CrossoverParameter.ValidValues.FirstOrDefault(x => x.GetType() == oldCrossover.GetType());
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363 | if (crossover != null) CrossoverParameter.Value = crossover;
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364 | else oldCrossover = null;
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365 | }
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366 | if (oldCrossover == null && defaultCrossover != null)
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367 | CrossoverParameter.Value = defaultCrossover;
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368 | }
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369 |
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370 | private void UpdateMutators() {
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371 | IManipulator oldMutator = MutatorParameter.Value;
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372 | MutatorParameter.ValidValues.Clear();
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373 | IManipulator defaultMutator = Problem.Operators.OfType<IManipulator>().FirstOrDefault();
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374 |
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375 | foreach (IManipulator mutator in Problem.Operators.OfType<IManipulator>().OrderBy(x => x.Name))
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376 | MutatorParameter.ValidValues.Add(mutator);
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377 |
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378 | if (oldMutator != null) {
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379 | IManipulator mutator = MutatorParameter.ValidValues.FirstOrDefault(x => x.GetType() == oldMutator.GetType());
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380 | if (mutator != null) MutatorParameter.Value = mutator;
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381 | else oldMutator = null;
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382 | }
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383 |
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384 | if (oldMutator == null && defaultMutator != null)
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385 | MutatorParameter.Value = defaultMutator;
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386 | }
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387 | private void UpdateSelectors() {
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388 | ISelector oldSelector = SelectorParameter.Value;
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389 | SelectorParameter.ValidValues.Clear();
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390 | ISelector defaultSelector = Problem.Operators.OfType<ISelector>().FirstOrDefault();
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391 |
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392 | foreach (ISelector selector in Problem.Operators.OfType<ISelector>().OrderBy(x => x.Name))
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393 | SelectorParameter.ValidValues.Add(selector);
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394 |
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395 | if (oldSelector != null) {
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396 | ISelector selector = SelectorParameter.ValidValues.FirstOrDefault(x => x.GetType() == oldSelector.GetType());
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397 | if (selector != null) SelectorParameter.Value = selector;
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398 | else oldSelector = null;
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399 | }
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400 |
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401 | if (oldSelector == null && defaultSelector != null)
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402 | SelectorParameter.Value = defaultSelector;
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403 | }
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404 | protected override void OnProblemChanged() {
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405 | UpdateCrossovers();
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406 | UpdateMutators();
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407 | UpdateAnalyzers();
|
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408 | base.OnProblemChanged();
|
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409 | }
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410 |
|
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411 | protected override void OnExecutionStateChanged() {
|
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412 | previousExecutionState = ExecutionState;
|
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413 | base.OnExecutionStateChanged();
|
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414 | }
|
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415 |
|
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416 | protected override void OnStopped() {
|
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417 | if (Solutions != null) {
|
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418 | Solutions.Clear();
|
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419 | }
|
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420 | if (Population != null) {
|
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421 | Population.Clear();
|
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422 | }
|
---|
423 | //if (offspringPopulation != null) {
|
---|
424 | // offspringPopulation.Clear();
|
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425 | //}
|
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426 | //if (jointPopulation != null) {
|
---|
427 | // jointPopulation.Clear();
|
---|
428 | //}
|
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429 | executionContext.Scope.SubScopes.Clear();
|
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430 | base.OnStopped();
|
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431 | }
|
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432 | #endregion
|
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433 | }
|
---|
434 | }
|
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