1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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4 | *
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5 | * This file is part of HeuristicLab.
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6 | *
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7 | * HeuristicLab is free software: you can redistribute it and/or modify
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8 | * it under the terms of the GNU General Public License as published by
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9 | * the Free Software Foundation, either version 3 of the License, or
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10 | * (at your option) any later version.
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11 | *
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12 | * HeuristicLab is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | * GNU General Public License for more details.
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16 | *
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17 | * You should have received a copy of the GNU General Public License
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18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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19 | */
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20 | #endregion
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21 |
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22 | using System.Linq;
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23 | using HeuristicLab.Common;
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24 | using HeuristicLab.Core;
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25 | using HeuristicLab.Data;
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26 | using HeuristicLab.Operators;
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27 | using HeuristicLab.Optimization;
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28 | using HeuristicLab.Optimization.Operators;
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29 | using HeuristicLab.Parameters;
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30 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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31 | using HeuristicLab.Selection;
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32 |
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33 | namespace HeuristicLab.Algorithms.ALPS.SteadyState {
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34 | [Item("AlpsSsGeneticAlgorithmMainLoop", "An ALPS steady-state genetic algorithm main loop operator.")]
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35 | [StorableClass]
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36 | public class AlpsSsGeneticAlgorithmMainLoop : AlgorithmOperator {
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37 | #region Parameter Properties
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38 | public ValueLookupParameter<BoolValue> MaximizationParameter {
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39 | get { return (ValueLookupParameter<BoolValue>)Parameters["Maximization"]; }
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40 | }
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41 | public ScopeTreeLookupParameter<DoubleValue> QualityParameter {
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42 | get { return (ScopeTreeLookupParameter<DoubleValue>)Parameters["Quality"]; }
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43 | }
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44 | public ILookupParameter<IntValue> MaximumIterationsParameter {
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45 | get { return (ILookupParameter<IntValue>)Parameters["MaximumIterations"]; }
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46 | }
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47 | public ILookupParameter<IOperator> AnalyzerParameter {
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48 | get { return (ILookupParameter<IOperator>)Parameters["Analyzer"]; }
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49 | }
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50 | public ILookupParameter<IOperator> LayerAnalyzerParameter {
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51 | get { return (ILookupParameter<IOperator>)Parameters["LayerAnalyzer"]; }
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52 | }
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53 | #endregion
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54 |
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55 | [StorableConstructor]
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56 | private AlpsSsGeneticAlgorithmMainLoop(bool deserializing)
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57 | : base(deserializing) { }
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58 | private AlpsSsGeneticAlgorithmMainLoop(AlpsSsGeneticAlgorithmMainLoop original, Cloner cloner)
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59 | : base(original, cloner) { }
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60 | public override IDeepCloneable Clone(Cloner cloner) {
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61 | return new AlpsSsGeneticAlgorithmMainLoop(this, cloner);
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62 | }
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63 |
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64 | public AlpsSsGeneticAlgorithmMainLoop()
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65 | : base() {
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66 | Parameters.Add(new ValueLookupParameter<BoolValue>("Maximization", "True if the problem is a maximization problem, otherwise false."));
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67 | Parameters.Add(new ScopeTreeLookupParameter<DoubleValue>("Quality", "The value which represents the quality of a solution."));
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68 | Parameters.Add(new LookupParameter<IntValue>("MaximumIterations", "The maximum number of iterations that the algorithm should process."));
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69 | Parameters.Add(new LookupParameter<IOperator>("Analyzer", "The operator used to the analyze all individuals."));
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70 | Parameters.Add(new LookupParameter<IOperator>("LayerAnalyzer", "The operator used to analyze each layer."));
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71 |
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72 | var variableCreator = new VariableCreator() { Name = "Initialize" };
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73 | var resultsColletor = new ResultsCollector();
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74 | var layersProcessor = new NamedSubScopeProcessor() { Name = "Process Layers" };
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75 | var initializeBatchIteration = new Assigner() { Name = "Initialize BatchIterations" };
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76 | var randomLayerProcessor = new RandomLayerProcessor() { Name = "Select a layer" };
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77 | var isLayerZeroComperator = new Comparator() { Name = "IsLayerZero = Layer == 0" };
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78 | var isLayerZeroBranch = new ConditionalBranch() { Name = "IsLayerZero?" };
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79 | var isDoInitBranch = new ConditionalBranch() { Name = "DoInit?" };
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80 | var setTargetIndedxToNextInit = new Assigner() { Name = "TargetIndex = NextInit" };
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81 | var incrementNextInit = new IntCounter() { Name = "Incr. NextInit" };
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82 | var checkInitFinished = new Comparator() { Name = "DoInit = NextInit < LayerSize" };
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83 | var workingScopeProcessor = new NamedSubScopeProcessor() { Name = "WorkingScope Processor" };
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84 | var createRandomIndividual = new SolutionsCreator() { Name = "Create random Individual" };
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85 | var initializeAgeProcessor = new UniformSubScopesProcessor();
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86 | var initializeAge = new Assigner() { Name = "Initialize Age" };
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87 | var removeEmptySubscope = new SubScopesRemover() { Name = "Remove empty subscope (from solutioncreator)" };
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88 | var layerSorter = new SubScopesSorter() { Name = "Sort Layer" };
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89 | var selectRandomTargetIndex = new RandomIntAssigner();
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90 | var matingPoolCreator = new SteadyStateMatingPoolCreator() { Name = "Create MatingPool" };
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91 | var matingPoolProcessor = new NamedSubScopeProcessor() { Name = "Process MatingPool" };
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92 | var matingPoolSize = new SubScopesCounter() { Name = "MatingPoolSize" };
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93 | var matingPoolSizeMin2 = new Comparator() { Name = "ValidParents = MatingPoolSize >= 2" };
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94 | var validParentsBranch = new ConditionalBranch() { Name = "ValidParents?" };
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95 | var mainOperator = new AlpsSsGeneticAlgorithmMainOperator();
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96 | var reactivateInit = new Assigner() { Name = "DoInit = true" };
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97 | var resetNextInit = new Assigner() { Name = "NextInit = 1" };
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98 | var resetTargetIndex = new Assigner() { Name = "TargetIndex = MatingPoolSize" };
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99 | var tryMoveUp = new AlpsSsMover() { Name = "Try Move Up" };
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100 | var incrementEvaluations = new IntCounter() { Name = "Incr. EvaluatedSolutions" };
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101 | var incrementBatchIterations = new IntCounter() { Name = "Incr. BatchIterations" };
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102 | var batchFinishedComperator = new Comparator() { Name = "BatchFinished = BatchIterations >= BatchSize" };
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103 | var batchFinishedBranch = new ConditionalBranch() { Name = "BatchFinished?" };
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104 | var incrIterations = new IntCounter() { Name = "Incr. Iterations" };
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105 | var updateResultEvaluatedSolutions = new IntCounter() { Name = "Update ResultEvaluatedSolutions" };
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106 | var layerAnalyzerProcessor = new UniformSubScopesProcessor();
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107 | var layerAnalyzer = new Placeholder() { Name = "LayerAnalyzer (Placeholder)" };
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108 | var analyzer = new Placeholder() { Name = "Analyzer (Placeholder)" };
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109 | var iterationsComparator = new Comparator() { Name = "Iterations >= MaximumIterations" };
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110 | var terminateBranch = new ConditionalBranch() { Name = "Terminate?" };
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111 |
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112 |
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113 | OperatorGraph.InitialOperator = variableCreator;
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114 |
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115 | variableCreator.CollectedValues.Add(new ValueParameter<BoolValue>("DoInit", new BoolValue(false)));
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116 | variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("NextInit", new IntValue(0)));
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117 | variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("OpenLayers", new IntValue(1)));
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118 | variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("TargetIndex", new IntValue(0)));
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119 | variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("Iterations", new IntValue(0)));
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120 | variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("MatingPoolSize", new IntValue(0)));
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121 | variableCreator.CollectedValues.Add(new ValueParameter<BoolValue>("ValidParents", new BoolValue(false)));
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122 | variableCreator.CollectedValues.Add(new ValueParameter<BoolValue>("IsLayerZero", new BoolValue(false)));
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123 | variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("BatchIterations", new IntValue(0)));
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124 | variableCreator.Successor = resultsColletor;
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125 |
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126 | resultsColletor.CollectedValues.Add(new LookupParameter<IntValue>("Iterations"));
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127 | resultsColletor.Successor = layersProcessor;
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128 |
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129 | layersProcessor.TargetScopeParameter.ActualName = "LayersScope";
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130 | layersProcessor.Operator = initializeBatchIteration;
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131 |
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132 | initializeBatchIteration.LeftSideParameter.ActualName = "BatchIterations";
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133 | initializeBatchIteration.RightSideParameter.Value = new IntValue(0);
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134 | initializeBatchIteration.Successor = randomLayerProcessor;
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135 |
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136 | randomLayerProcessor.Operator = isLayerZeroComperator;
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137 | randomLayerProcessor.Successor = incrementBatchIterations;
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138 |
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139 | isLayerZeroComperator.LeftSideParameter.ActualName = "Layer";
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140 | isLayerZeroComperator.RightSideParameter.Value = new IntValue(0);
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141 | isLayerZeroComperator.ResultParameter.ActualName = "IsLayerZero";
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142 | isLayerZeroComperator.Comparison = new Comparison(ComparisonType.Equal);
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143 | isLayerZeroComperator.Successor = isLayerZeroBranch;
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144 |
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145 | isLayerZeroBranch.ConditionParameter.ActualName = "IsLayerZero";
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146 | isLayerZeroBranch.TrueBranch = isDoInitBranch;
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147 | isLayerZeroBranch.FalseBranch = layerSorter;
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148 | isLayerZeroBranch.Successor = tryMoveUp;
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149 |
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150 | isDoInitBranch.ConditionParameter.ActualName = "DoInit";
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151 | isDoInitBranch.TrueBranch = setTargetIndedxToNextInit;
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152 | isDoInitBranch.FalseBranch = layerSorter;
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153 |
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154 | setTargetIndedxToNextInit.LeftSideParameter.ActualName = "TargetIndex";
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155 | setTargetIndedxToNextInit.RightSideParameter.ActualName = "NextInit";
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156 | setTargetIndedxToNextInit.Successor = incrementNextInit;
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157 |
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158 | incrementNextInit.ValueParameter.ActualName = "NextInit";
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159 | incrementNextInit.Increment = new IntValue(1);
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160 | incrementNextInit.Successor = checkInitFinished;
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161 |
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162 | checkInitFinished.LeftSideParameter.ActualName = "NextInit";
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163 | checkInitFinished.RightSideParameter.ActualName = "LayerSize";
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164 | checkInitFinished.Comparison = new Comparison(ComparisonType.Less);
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165 | checkInitFinished.ResultParameter.ActualName = "DoInit";
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166 | checkInitFinished.Successor = workingScopeProcessor;
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167 |
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168 | workingScopeProcessor.Operator = createRandomIndividual;
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169 | workingScopeProcessor.TargetScopeParameter.ActualName = "WorkingScope";
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170 |
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171 | createRandomIndividual.NumberOfSolutions = new IntValue(1);
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172 | createRandomIndividual.Successor = initializeAgeProcessor;
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173 |
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174 | initializeAgeProcessor.Operator = initializeAge;
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175 | initializeAgeProcessor.Successor = removeEmptySubscope;
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176 |
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177 | initializeAge.LeftSideParameter.ActualName = "EvalsCreated";
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178 | initializeAge.RightSideParameter.ActualName = "EvaluatedSolutions";
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179 |
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180 | layerSorter.ValueParameter.ActualName = "Quality";
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181 | layerSorter.DescendingParameter.ActualName = "Maximization";
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182 | layerSorter.Successor = selectRandomTargetIndex;
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183 |
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184 | selectRandomTargetIndex.LeftSideParameter.ActualName = "TargetIndex";
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185 | selectRandomTargetIndex.MinimumParameter.ActualName = "Elites";
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186 | selectRandomTargetIndex.MinimumParameter.Value = null;
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187 | selectRandomTargetIndex.MaximumParameter.ActualName = "LayerSize";
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188 | selectRandomTargetIndex.MaximumParameter.Value = null;
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189 | selectRandomTargetIndex.Successor = matingPoolCreator;
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190 |
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191 | matingPoolCreator.Successor = matingPoolProcessor;
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192 |
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193 | matingPoolProcessor.Operator = matingPoolSize;
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194 | matingPoolProcessor.TargetScopeParameter.ActualName = "WorkingScope";
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195 |
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196 | matingPoolSize.ValueParameter.ActualName = "MatingPoolSize";
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197 | matingPoolSize.AccumulateParameter.Value = new BoolValue(false);
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198 | matingPoolSize.Successor = matingPoolSizeMin2;
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199 |
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200 | matingPoolSizeMin2.LeftSideParameter.ActualName = "MatingPoolSize";
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201 | matingPoolSizeMin2.RightSideParameter.Value = new IntValue(2);
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202 | matingPoolSizeMin2.Comparison = new Comparison(ComparisonType.GreaterOrEqual);
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203 | matingPoolSizeMin2.ResultParameter.ActualName = "ValidParents";
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204 | matingPoolSizeMin2.Successor = validParentsBranch;
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205 |
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206 | validParentsBranch.ConditionParameter.ActualName = "ValidParents";
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207 | validParentsBranch.TrueBranch = mainOperator;
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208 | validParentsBranch.FalseBranch = reactivateInit;
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209 |
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210 | reactivateInit.Successor = resetNextInit;
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211 | reactivateInit.LeftSideParameter.ActualName = "DoInit";
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212 | reactivateInit.RightSideParameter.Value = new BoolValue(true);
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213 |
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214 | resetNextInit.Successor = resetTargetIndex;
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215 | resetNextInit.LeftSideParameter.ActualName = "NextInit";
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216 | resetNextInit.RightSideParameter.Value = new IntValue(1);
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217 |
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218 | resetTargetIndex.LeftSideParameter.ActualName = "TargetIndex";
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219 | resetTargetIndex.RightSideParameter.ActualName = "MatingPoolSize";
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220 | resetTargetIndex.Successor = createRandomIndividual;
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221 |
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222 | tryMoveUp.Successor = incrementEvaluations;
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223 |
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224 | incrementEvaluations.ValueParameter.ActualName = "EvaluatedSolutions";
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225 | incrementEvaluations.Increment = new IntValue(1);
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226 |
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227 | incrementBatchIterations.ValueParameter.ActualName = "BatchIterations";
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228 | incrementBatchIterations.Increment = new IntValue(1);
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229 | incrementBatchIterations.Successor = batchFinishedComperator;
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230 |
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231 | batchFinishedComperator.LeftSideParameter.ActualName = "BatchIterations";
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232 | batchFinishedComperator.RightSideParameter.ActualName = "BatchSize";
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233 | batchFinishedComperator.ResultParameter.ActualName = "BatchFinished";
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234 | batchFinishedComperator.Successor = batchFinishedBranch;
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235 |
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236 | batchFinishedBranch.ConditionParameter.ActualName = "BatchFinished";
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237 | batchFinishedBranch.TrueBranch = incrIterations;
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238 | batchFinishedBranch.FalseBranch = randomLayerProcessor;
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239 |
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240 | incrIterations.ValueParameter.ActualName = "Iterations";
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241 | incrIterations.Increment = new IntValue(1);
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242 | incrIterations.Successor = updateResultEvaluatedSolutions;
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243 |
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244 | updateResultEvaluatedSolutions.ValueParameter.ActualName = "ResultEvaluatedSolutions";
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245 | updateResultEvaluatedSolutions.IncrementParameter.ActualName = "BatchSize";
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246 | updateResultEvaluatedSolutions.IncrementParameter.Value = null;
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247 | updateResultEvaluatedSolutions.Successor = layerAnalyzerProcessor;
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248 |
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249 | layerAnalyzerProcessor.Operator = layerAnalyzer;
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250 | layerAnalyzerProcessor.Successor = analyzer;
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251 |
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252 | layerAnalyzer.OperatorParameter.ActualName = "LayerAnalyzer";
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253 |
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254 | analyzer.OperatorParameter.ActualName = "Analyzer";
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255 | analyzer.Successor = iterationsComparator;
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256 |
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257 | iterationsComparator.Comparison = new Comparison(ComparisonType.GreaterOrEqual);
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258 | iterationsComparator.LeftSideParameter.ActualName = "Iterations";
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259 | iterationsComparator.RightSideParameter.ActualName = MaximumIterationsParameter.Name;
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260 | iterationsComparator.ResultParameter.ActualName = "Terminate";
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261 | iterationsComparator.Successor = terminateBranch;
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262 |
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263 | terminateBranch.ConditionParameter.ActualName = "Terminate";
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264 | terminateBranch.FalseBranch = initializeBatchIteration;
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265 | }
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266 | }
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267 | } |
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