1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2011 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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4 | *
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5 | * This file is part of HeuristicLab.
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6 | *
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7 | * HeuristicLab is free software: you can redistribute it and/or modify
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8 | * it under the terms of the GNU General Public License as published by
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9 | * the Free Software Foundation, either version 3 of the License, or
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10 | * (at your option) any later version.
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11 | *
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12 | * HeuristicLab is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | * GNU General Public License for more details.
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16 | *
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17 | * You should have received a copy of the GNU General Public License
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18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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19 | */
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20 | #endregion
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21 |
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22 | using System;
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23 | using System.Linq;
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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.Encodings.RealVectorEncoding;
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29 | using HeuristicLab.Operators;
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30 | using HeuristicLab.Optimization;
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31 | using HeuristicLab.Optimization.Operators;
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32 | using HeuristicLab.Parameters;
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33 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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34 | using HeuristicLab.PluginInfrastructure;
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35 | using HeuristicLab.Random;
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36 |
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37 | namespace HeuristicLab.Algorithms.ParticleSwarmOptimization {
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38 | [Item("Particle Swarm Optimization", "A particle swarm optimization algorithm based on the description in Pedersen, M.E.H. (2010). PhD thesis. University of Southampton.")]
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39 | [Creatable("Algorithms")]
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40 | [StorableClass]
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41 | public sealed class ParticleSwarmOptimization : EngineAlgorithm, IStorableContent {
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42 |
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43 | #region Problem Properties
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44 | public override Type ProblemType {
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45 | get { return typeof(ISingleObjectiveProblem); }
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46 | }
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47 | public new ISingleObjectiveProblem Problem {
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48 | get { return (ISingleObjectiveProblem)base.Problem; }
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49 | set { base.Problem = value; }
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50 | }
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51 | public MultiAnalyzer Analyzer {
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52 | get { return AnalyzerParameter.Value; }
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53 | set { AnalyzerParameter.Value = value; }
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54 | }
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55 | public IDiscreteDoubleValueModifier OmegaUpdater {
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56 | get { return OmegaUpdaterParameter.Value; }
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57 | set { OmegaUpdaterParameter.Value = value; }
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58 | }
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59 | public IDiscreteDoubleMatrixModifier VelocityBoundsUpdater {
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60 | get { return VelocityBoundsUpdaterParameter.Value; }
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61 | set { VelocityBoundsUpdaterParameter.Value = value; }
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62 | }
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63 | #endregion
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64 |
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65 | #region Parameter Properties
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66 | public IValueParameter<IntValue> SeedParameter {
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67 | get { return (IValueParameter<IntValue>)Parameters["Seed"]; }
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68 | }
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69 | public IValueParameter<BoolValue> SetSeedRandomlyParameter {
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70 | get { return (IValueParameter<BoolValue>)Parameters["SetSeedRandomly"]; }
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71 | }
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72 | public IValueParameter<IntValue> SwarmSizeParameter {
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73 | get { return (IValueParameter<IntValue>)Parameters["SwarmSize"]; }
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74 | }
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75 | public IValueParameter<IntValue> MaxIterationsParameter {
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76 | get { return (IValueParameter<IntValue>)Parameters["MaxIterations"]; }
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77 | }
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78 | public IValueParameter<DoubleValue> OmegaParameter {
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79 | get { return (IValueParameter<DoubleValue>)Parameters["Omega"]; }
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80 | }
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81 | public IValueParameter<DoubleValue> Phi_PParameter {
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82 | get { return (IValueParameter<DoubleValue>)Parameters["Phi_P"]; }
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83 | }
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84 | public IValueParameter<DoubleValue> Phi_GParameter {
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85 | get { return (IValueParameter<DoubleValue>)Parameters["Phi_G"]; }
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86 | }
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87 | public IValueParameter<MultiAnalyzer> AnalyzerParameter {
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88 | get { return (IValueParameter<MultiAnalyzer>)Parameters["Analyzer"]; }
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89 | }
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90 | public IValueLookupParameter<DoubleMatrix> VelocityBoundsParameter {
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91 | get { return (IValueLookupParameter<DoubleMatrix>)Parameters["VelocityBounds"]; }
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92 | }
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93 | public ConstrainedValueParameter<IParticleUpdater> ParticleUpdaterParameter {
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94 | get { return (ConstrainedValueParameter<IParticleUpdater>)Parameters["ParticleUpdater"]; }
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95 | }
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96 | public OptionalConstrainedValueParameter<ITopologyInitializer> TopologyInitializerParameter {
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97 | get { return (OptionalConstrainedValueParameter<ITopologyInitializer>)Parameters["TopologyInitializer"]; }
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98 | }
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99 | public OptionalConstrainedValueParameter<ITopologyUpdater> TopologyUpdaterParameter {
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100 | get { return (OptionalConstrainedValueParameter<ITopologyUpdater>)Parameters["TopologyUpdater"]; }
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101 | }
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102 | public OptionalConstrainedValueParameter<IDiscreteDoubleMatrixModifier> VelocityBoundsUpdaterParameter {
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103 | get { return (OptionalConstrainedValueParameter<IDiscreteDoubleMatrixModifier>)Parameters["VelocityBoundsUpdater"]; }
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104 | }
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105 | public OptionalConstrainedValueParameter<IDiscreteDoubleValueModifier> OmegaUpdaterParameter {
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106 | get { return (OptionalConstrainedValueParameter<IDiscreteDoubleValueModifier>)Parameters["OmegaUpdater"]; }
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107 | }
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108 | #endregion
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109 |
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110 | #region Properties
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111 |
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112 | public string Filename { get; set; }
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113 |
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114 | [Storable]
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115 | private BestAverageWorstQualityAnalyzer qualityAnalyzer;
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116 |
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117 | public ITopologyInitializer TopologyInitializer {
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118 | get { return TopologyInitializerParameter.Value; }
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119 | set { TopologyInitializerParameter.Value = value; }
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120 | }
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121 |
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122 | public ITopologyUpdater TopologyUpdater {
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123 | get { return TopologyUpdaterParameter.Value; }
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124 | set { TopologyUpdaterParameter.Value = value; }
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125 | }
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126 |
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127 | public IParticleUpdater ParticleUpdater {
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128 | get { return ParticleUpdaterParameter.Value; }
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129 | set { ParticleUpdaterParameter.Value = value; }
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130 | }
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131 |
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132 | #endregion
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133 |
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134 | [StorableConstructor]
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135 | private ParticleSwarmOptimization(bool deserializing) : base(deserializing) { }
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136 | private ParticleSwarmOptimization(ParticleSwarmOptimization original, Cloner cloner)
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137 | : base(original, cloner) {
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138 | qualityAnalyzer = cloner.Clone(original.qualityAnalyzer);
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139 | Initialize();
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140 | }
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141 | public ParticleSwarmOptimization()
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142 | : base() {
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143 | Parameters.Add(new ValueParameter<IntValue>("Seed", "The random seed used to initialize the new pseudo random number generator.", new IntValue(0)));
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144 | Parameters.Add(new ValueParameter<BoolValue>("SetSeedRandomly", "True if the random seed should be set to a random value, otherwise false.", new BoolValue(true)));
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145 | Parameters.Add(new ValueParameter<IntValue>("SwarmSize", "Size of the particle swarm.", new IntValue(10)));
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146 | Parameters.Add(new ValueParameter<IntValue>("MaxIterations", "Maximal number of iterations.", new IntValue(1000)));
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147 | Parameters.Add(new ValueParameter<MultiAnalyzer>("Analyzer", "The operator used to analyze each generation.", new MultiAnalyzer()));
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148 | Parameters.Add(new ValueParameter<DoubleValue>("Omega", "Weight for particle's velocity vector.", new DoubleValue(-0.2)));
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149 | Parameters.Add(new ValueParameter<DoubleValue>("Phi_P", "Weight for particle's personal best position.", new DoubleValue(-0.01)));
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150 | Parameters.Add(new ValueParameter<DoubleValue>("Phi_G", "Weight for global best position.", new DoubleValue(3.7)));
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151 | Parameters.Add(new ValueLookupParameter<DoubleMatrix>("VelocityBounds", "Maximum Velocity in every dimension", new DoubleMatrix(new double[,] { { -1, 1 } })));
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152 | Parameters.Add(new ConstrainedValueParameter<IParticleUpdater>("ParticleUpdater", "Operator that calculates new position and velocity of a particle"));
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153 | Parameters.Add(new OptionalConstrainedValueParameter<ITopologyInitializer>("TopologyInitializer", "Creates neighborhood description vectors"));
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154 | Parameters.Add(new OptionalConstrainedValueParameter<ITopologyUpdater>("TopologyUpdater", "Updates the neighborhood description vectors"));
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155 | Parameters.Add(new OptionalConstrainedValueParameter<IDiscreteDoubleValueModifier>("OmegaUpdater", "Updates the omega parameter"));
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156 | Parameters.Add(new OptionalConstrainedValueParameter<IDiscreteDoubleMatrixModifier>("VelocityBoundsUpdater", "Adjusts the velocity bounds."));
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157 | ParticleUpdaterParameter.ActualValue = ParticleUpdaterParameter.ValidValues.SingleOrDefault(v => v.GetType() == typeof(TotallyConnectedParticleUpdater));
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158 |
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159 | RandomCreator randomCreator = new RandomCreator();
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160 | VariableCreator variableCreator = new VariableCreator();
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161 | SolutionsCreator solutionsCreator = new SolutionsCreator();
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162 | CombinedOperator particleCreator = new CombinedOperator();
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163 | Placeholder evaluatorPlaceholder = new Placeholder();
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164 | Assigner bestPersonalQualityAssigner = new Assigner();
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165 | BestPointInitializer bestPositionInitializer = new BestPointInitializer();
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166 | Placeholder topologyInitializerPlaceholder = new Placeholder();
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167 | NeighborUpdater neighborUpdater = new NeighborUpdater();
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168 | Placeholder analyzerPlaceholder = new Placeholder();
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169 | UniformSubScopesProcessor uniformSubScopeProcessor = new UniformSubScopesProcessor();
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170 | Placeholder particleUpdaterPlaceholder = new Placeholder();
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171 | Placeholder topologyUpdaterPlaceholder = new Placeholder();
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172 | UniformSubScopesProcessor uniformSubscopesProcessor2 = new UniformSubScopesProcessor();
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173 | UniformSubScopesProcessor evaluationProcessor = new UniformSubScopesProcessor();
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174 | NeighborUpdater neighborUpdater2 = new NeighborUpdater();
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175 | Placeholder evaluatorPlaceholder2 = new Placeholder();
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176 | SwarmUpdater swarmUpdater = new SwarmUpdater();
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177 | Placeholder analyzerPlaceholder2 = new Placeholder();
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178 | IntCounter currentIterationCounter = new IntCounter();
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179 | Comparator currentIterationComparator = new Comparator();
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180 | ConditionalBranch conditionalBranch = new ConditionalBranch();
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181 | Placeholder velocityBoundsUpdaterPlaceholder = new Placeholder();
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182 | Placeholder omegaUpdaterPlaceholder = new Placeholder();
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183 |
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184 | OperatorGraph.InitialOperator = randomCreator;
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185 |
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186 | randomCreator.SetSeedRandomlyParameter.Value = null;
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187 | randomCreator.SeedParameter.Value = null;
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188 | randomCreator.Successor = variableCreator;
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189 |
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190 | variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("CurrentIteration", new IntValue(0)));
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191 | variableCreator.Successor = solutionsCreator;
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192 |
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193 | solutionsCreator.NumberOfSolutionsParameter.ActualName = "SwarmSize";
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194 | solutionsCreator.EvaluatorParameter.Value = evaluatorPlaceholder;
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195 | solutionsCreator.SolutionCreatorParameter.Value = particleCreator;
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196 | solutionsCreator.Successor = bestPositionInitializer;
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197 |
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198 | InitializeParticleCreator(particleCreator);
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199 |
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200 | evaluatorPlaceholder.Name = "(Evaluator)";
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201 | evaluatorPlaceholder.OperatorParameter.ActualName = "Evaluator";
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202 | evaluatorPlaceholder.Successor = bestPersonalQualityAssigner;
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203 |
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204 | bestPersonalQualityAssigner.LeftSideParameter.ActualName = "PersonalBestQuality";
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205 | bestPersonalQualityAssigner.RightSideParameter.ActualName = "Quality";
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206 |
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207 | bestPositionInitializer.Successor = topologyInitializerPlaceholder;
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208 |
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209 | topologyInitializerPlaceholder.Name = "(TopologyInitializer)";
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210 | topologyInitializerPlaceholder.OperatorParameter.ActualName = "TopologyInitializer";
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211 | topologyInitializerPlaceholder.Successor = neighborUpdater;
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212 |
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213 | neighborUpdater.Successor = analyzerPlaceholder;
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214 |
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215 | analyzerPlaceholder.Name = "(Analyzer)";
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216 | analyzerPlaceholder.OperatorParameter.ActualName = "Analyzer";
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217 | analyzerPlaceholder.Successor = uniformSubScopeProcessor;
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218 |
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219 | uniformSubScopeProcessor.Operator = particleUpdaterPlaceholder;
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220 | uniformSubScopeProcessor.Successor = evaluationProcessor;
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221 |
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222 | particleUpdaterPlaceholder.Name = "(ParticleUpdater)";
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223 | particleUpdaterPlaceholder.OperatorParameter.ActualName = "ParticleUpdater";
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224 |
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225 | evaluationProcessor.Parallel = new BoolValue(true);
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226 | evaluationProcessor.Operator = evaluatorPlaceholder2;
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227 | evaluationProcessor.Successor = topologyUpdaterPlaceholder;
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228 |
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229 | evaluatorPlaceholder2.Name = "(Evaluator)";
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230 | evaluatorPlaceholder2.OperatorParameter.ActualName = "Evaluator";
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231 |
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232 | topologyUpdaterPlaceholder.Name = "(TopologyUpdater)";
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233 | topologyUpdaterPlaceholder.OperatorParameter.ActualName = "TopologyUpdater";
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234 | topologyUpdaterPlaceholder.Successor = neighborUpdater2;
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235 |
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236 | neighborUpdater2.Successor = uniformSubscopesProcessor2;
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237 |
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238 | uniformSubscopesProcessor2.Operator = swarmUpdater;
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239 | uniformSubscopesProcessor2.Successor = analyzerPlaceholder2;
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240 |
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241 | analyzerPlaceholder2.Name = "(Analyzer)";
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242 | analyzerPlaceholder2.OperatorParameter.ActualName = "Analyzer";
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243 | analyzerPlaceholder2.Successor = currentIterationCounter;
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244 |
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245 | currentIterationCounter.Name = "CurrentIteration++";
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246 | currentIterationCounter.ValueParameter.ActualName = "CurrentIteration";
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247 | currentIterationCounter.Successor = omegaUpdaterPlaceholder;
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248 |
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249 | omegaUpdaterPlaceholder.Name = "(Omega Updater)";
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250 | omegaUpdaterPlaceholder.OperatorParameter.ActualName = "OmegaUpdater";
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251 | omegaUpdaterPlaceholder.Successor = velocityBoundsUpdaterPlaceholder;
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252 |
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253 | velocityBoundsUpdaterPlaceholder.Name = "(Velocity Bounds Updater)";
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254 | velocityBoundsUpdaterPlaceholder.OperatorParameter.ActualName = "VelocityBoundsUpdater";
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255 | velocityBoundsUpdaterPlaceholder.Successor = currentIterationComparator;
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256 |
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257 | currentIterationComparator.LeftSideParameter.ActualName = "CurrentIteration";
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258 | currentIterationComparator.Comparison = new Comparison(ComparisonType.Less);
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259 | currentIterationComparator.RightSideParameter.ActualName = "MaxIterations";
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260 | currentIterationComparator.ResultParameter.ActualName = "ContinueIteration";
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261 | currentIterationComparator.Successor = conditionalBranch;
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262 |
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263 | conditionalBranch.Name = "ContinueIteration?";
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264 | conditionalBranch.ConditionParameter.ActualName = "ContinueIteration";
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265 | conditionalBranch.TrueBranch = uniformSubScopeProcessor;
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266 |
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267 | InitializeAnalyzers();
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268 | InitVelocityBoundsUpdater();
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269 | UpdateAnalyzers();
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270 | UpdateOmegaUpdater();
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271 | InitOmegaUpdater();
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272 | UpdateTopologyInitializer();
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273 | Initialize();
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274 | }
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275 |
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276 | public override IDeepCloneable Clone(Cloner cloner) {
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277 | return new ParticleSwarmOptimization(this, cloner);
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278 | }
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279 |
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280 | [StorableHook(HookType.AfterDeserialization)]
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281 | private void AfterDeserialization() {
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282 | Initialize();
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283 | }
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284 |
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285 | public override void Prepare() {
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286 | if (Problem != null) {
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287 | base.Prepare();
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288 | if (OmegaUpdater != null && OmegaUpdater.StartValueParameter.Value != null) {
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289 | this.OmegaParameter.ActualValue = new DoubleValue(OmegaUpdaterParameter.Value.StartValueParameter.Value.Value);
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290 | }
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291 | if (VelocityBoundsUpdater != null && VelocityBoundsUpdater.StartValueParameter.Value != null && VelocityBoundsParameter.Value != null) {
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292 | DoubleMatrix matrix = VelocityBoundsParameter.Value;
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293 | for (int i = 0; i < matrix.Rows; i++) {
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294 | matrix[i, 0] = -VelocityBoundsUpdater.StartValueParameter.Value.Value;
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295 | matrix[i, 1] = VelocityBoundsUpdater.StartValueParameter.Value.Value;
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296 | }
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297 | }
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298 | }
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299 | }
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300 |
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301 | #region Events
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302 | protected override void OnProblemChanged() {
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303 | UpdateAnalyzers();
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304 | ParameterizeAnalyzers();
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305 | base.OnProblemChanged();
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306 | }
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307 |
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308 | void TopologyInitializerParameter_ValueChanged(object sender, EventArgs e) {
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309 | this.UpdateTopologyParameters();
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310 | }
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311 |
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312 | void VelocityBoundsUpdaterParameter_ValueChanged(object sender, EventArgs e) {
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313 | if (VelocityBoundsParameter.Value != null) {
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314 | foreach (IDiscreteDoubleMatrixModifier matrixOp in VelocityBoundsUpdaterParameter.Value.ScalingOperatorParameter.ValidValues) {
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315 | matrixOp.ValueParameter.ActualName = VelocityBoundsUpdater.ScaleParameter.Name;
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316 | matrixOp.StartValueParameter.Value = new DoubleValue(VelocityBoundsUpdater.ScaleParameter.ActualValue.Value);
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317 | }
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318 | }
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319 | }
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320 | #endregion
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321 |
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322 | #region Helpers
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323 | private void Initialize() {
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324 | TopologyInitializerParameter.ValueChanged += new EventHandler(TopologyInitializerParameter_ValueChanged);
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325 | }
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326 |
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327 | private static void InitializeParticleCreator(CombinedOperator particleCreator) {
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328 | Placeholder positionCreator = new Placeholder();
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329 | Assigner personalBestPositionAssigner = new Assigner();
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330 | UniformRandomRealVectorCreator velocityCreator = new UniformRandomRealVectorCreator();
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331 |
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332 | particleCreator.Name = "Particle Creator";
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333 | particleCreator.OperatorGraph.InitialOperator = positionCreator;
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334 |
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335 | positionCreator.Name = "(SolutionCreator)";
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336 | positionCreator.OperatorParameter.ActualName = "SolutionCreator";
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337 | positionCreator.Successor = personalBestPositionAssigner;
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338 |
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339 | personalBestPositionAssigner.LeftSideParameter.ActualName = "PersonalBestPoint";
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340 | personalBestPositionAssigner.RightSideParameter.ActualName = "Point";
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341 | personalBestPositionAssigner.Successor = velocityCreator;
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342 |
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343 | velocityCreator.LengthParameter.ActualName = "ProblemSize";
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344 | velocityCreator.BoundsParameter.ActualName = "VelocityBounds";
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345 | velocityCreator.RealVectorParameter.ActualName = "Velocity";
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346 | }
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347 |
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348 | private void InitializeAnalyzers() {
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349 | qualityAnalyzer = new BestAverageWorstQualityAnalyzer();
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350 | ParameterizeAnalyzers();
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351 | }
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352 |
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353 | private void ParameterizeAnalyzers() {
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354 | if (Problem != null) {
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355 | qualityAnalyzer.MaximizationParameter.ActualName = Problem.MaximizationParameter.Name;
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356 | qualityAnalyzer.QualityParameter.ActualName = Problem.Evaluator.QualityParameter.ActualName;
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357 | qualityAnalyzer.BestKnownQualityParameter.ActualName = Problem.BestKnownQualityParameter.Name;
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358 | }
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359 | }
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360 |
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361 | private void UpdateAnalyzers() {
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362 | Analyzer.Operators.Clear();
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363 | if (Problem != null) {
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364 | foreach (IAnalyzer analyzer in Problem.Operators.OfType<IAnalyzer>())
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365 | Analyzer.Operators.Add(analyzer);
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366 | }
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367 | Analyzer.Operators.Add(qualityAnalyzer);
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368 | }
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369 |
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370 | private void InitVelocityBoundsUpdater() {
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371 | foreach (IDiscreteDoubleMatrixModifier matrixOp in ApplicationManager.Manager.GetInstances<IDiscreteDoubleMatrixModifier>()) {
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372 | VelocityBoundsUpdaterParameter.ValidValues.Add(matrixOp);
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373 | matrixOp.ValueParameter.ActualName = VelocityBoundsParameter.Name;
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374 | matrixOp.EndIndexParameter.ActualName = MaxIterationsParameter.Name;
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375 | matrixOp.StartIndexParameter.Value = new IntValue(0);
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376 | matrixOp.IndexParameter.ActualName = "CurrentIteration";
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377 | matrixOp.EndValueParameter.Value = new DoubleValue(0);
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378 | }
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379 | VelocityBoundsUpdaterParameter.ValueChanged += new EventHandler(VelocityBoundsUpdaterParameter_ValueChanged);
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380 | }
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381 |
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382 | private void InitOmegaUpdater() {
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383 | foreach (IDiscreteDoubleValueModifier updater in OmegaUpdaterParameter.ValidValues) {
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384 | updater.EndIndexParameter.ActualName = MaxIterationsParameter.Name;
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385 | updater.StartIndexParameter.Value = new IntValue(0);
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386 | updater.IndexParameter.ActualName = "CurrentIteration";
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387 | updater.ValueParameter.ActualName = OmegaParameter.Name;
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388 | updater.StartValueParameter.Value = new DoubleValue(1);
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389 | updater.EndValueParameter.Value = new DoubleValue(0);
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390 | }
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391 | }
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392 |
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393 | private void UpdateOmegaUpdater() {
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394 | IDiscreteDoubleValueModifier oldOmegaUpdater = OmegaUpdater;
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395 | OmegaUpdaterParameter.ValidValues.Clear();
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396 | foreach (IDiscreteDoubleValueModifier updater in ApplicationManager.Manager.GetInstances<IDiscreteDoubleValueModifier>().OrderBy(x => x.Name)) {
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397 | OmegaUpdaterParameter.ValidValues.Add(updater);
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398 | }
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399 | if (oldOmegaUpdater != null) {
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400 | IDiscreteDoubleValueModifier updater = OmegaUpdaterParameter.ValidValues.FirstOrDefault(x => x.GetType() == oldOmegaUpdater.GetType());
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401 | if (updater != null) OmegaUpdaterParameter.Value = updater;
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402 | }
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403 | }
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404 |
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405 | private void UpdateTopologyInitializer() {
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406 | ITopologyInitializer oldTopologyInitializer = TopologyInitializer;
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407 | TopologyInitializerParameter.ValidValues.Clear();
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408 | foreach (ITopologyInitializer topologyInitializer in ApplicationManager.Manager.GetInstances<ITopologyInitializer>().OrderBy(x => x.Name)) {
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409 | TopologyInitializerParameter.ValidValues.Add(topologyInitializer);
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410 | }
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411 | if (oldTopologyInitializer != null && TopologyInitializerParameter.ValidValues.Any(x => x.GetType() == oldTopologyInitializer.GetType()))
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412 | TopologyInitializer = TopologyInitializerParameter.ValidValues.FirstOrDefault(x => x.GetType() == oldTopologyInitializer.GetType());
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413 | UpdateTopologyParameters();
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414 | }
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415 |
|
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416 | private void UpdateTopologyParameters() {
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417 | ITopologyUpdater oldTopologyUpdater = TopologyUpdater;
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418 | IParticleUpdater oldParticleUpdater = ParticleUpdater;
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419 | ClearTopologyParameters();
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420 | if (TopologyInitializer != null) {
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421 | foreach (ITopologyUpdater topologyUpdater in ApplicationManager.Manager.GetInstances<ITopologyUpdater>())
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422 | TopologyUpdaterParameter.ValidValues.Add(topologyUpdater);
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423 | foreach (IParticleUpdater particleUpdater in ApplicationManager.Manager.GetInstances<ILocalParticleUpdater>())
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424 | ParticleUpdaterParameter.ValidValues.Add(particleUpdater);
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425 | } else {
|
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426 | foreach (IParticleUpdater particleUpdater in ApplicationManager.Manager.GetInstances<IGlobalParticleUpdater>())
|
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427 | ParticleUpdaterParameter.ValidValues.Add(particleUpdater);
|
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428 | }
|
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429 | if (oldTopologyUpdater != null) {
|
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430 | ITopologyUpdater newTopologyUpdater = TopologyUpdaterParameter.ValidValues.FirstOrDefault(x => x.GetType() == oldParticleUpdater.GetType());
|
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431 | if (newTopologyUpdater != null) TopologyUpdater = newTopologyUpdater;
|
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432 | }
|
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433 | if (oldParticleUpdater != null) {
|
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434 | IParticleUpdater newParticleUpdater = ParticleUpdaterParameter.ValidValues.FirstOrDefault(x => x.GetType() == oldParticleUpdater.GetType());
|
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435 | if (newParticleUpdater != null) ParticleUpdater = newParticleUpdater;
|
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436 | }
|
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437 | }
|
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438 |
|
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439 | private void ClearTopologyParameters() {
|
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440 | TopologyUpdaterParameter.ValidValues.Clear();
|
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441 | ParticleUpdaterParameter.ValidValues.Clear();
|
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442 | }
|
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443 | #endregion
|
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444 |
|
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445 | }
|
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446 | }
|
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