| 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2013 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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| 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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| 22 | using HeuristicLab.Common;
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| 23 | using HeuristicLab.Core;
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| 24 | using HeuristicLab.Data;
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| 25 | using HeuristicLab.Operators;
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| 26 | using HeuristicLab.Optimization;
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| 27 | using HeuristicLab.Optimization.Operators;
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| 28 | using HeuristicLab.Parameters;
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| 29 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 30 |
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| 31 | namespace HeuristicLab.Algorithms.OffspringSelectionGeneticAlgorithm {
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| 32 | /// <summary>
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| 33 | /// A SASEGASA main loop operator.
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| 34 | /// </summary>
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| 35 | [Item("SASEGASAMainLoop", "A SASEGASA main loop operator.")]
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| 36 | [StorableClass]
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| 37 | public sealed class SASEGASAMainLoop : AlgorithmOperator {
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| 38 | #region Parameter Properties
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| 39 | public ValueLookupParameter<IRandom> RandomParameter {
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| 40 | get { return (ValueLookupParameter<IRandom>)Parameters["Random"]; }
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| 41 | }
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| 42 | public ValueLookupParameter<IntValue> NumberOfVillagesParameter {
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| 43 | get { return (ValueLookupParameter<IntValue>)Parameters["NumberOfVillages"]; }
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| 44 | }
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| 45 | public ValueLookupParameter<IntValue> MigrationIntervalParameter {
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| 46 | get { return (ValueLookupParameter<IntValue>)Parameters["MigrationInterval"]; }
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| 47 | }
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| 48 | public ValueLookupParameter<BoolValue> MaximizationParameter {
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| 49 | get { return (ValueLookupParameter<BoolValue>)Parameters["Maximization"]; }
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| 50 | }
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| 51 | public ScopeTreeLookupParameter<DoubleValue> QualityParameter {
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| 52 | get { return (ScopeTreeLookupParameter<DoubleValue>)Parameters["Quality"]; }
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| 53 | }
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| 54 | public ValueLookupParameter<DoubleValue> BestKnownQualityParameter {
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| 55 | get { return (ValueLookupParameter<DoubleValue>)Parameters["BestKnownQuality"]; }
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| 56 | }
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| 57 | public ValueLookupParameter<IOperator> SelectorParameter {
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| 58 | get { return (ValueLookupParameter<IOperator>)Parameters["Selector"]; }
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| 59 | }
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| 60 | public ValueLookupParameter<IOperator> CrossoverParameter {
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| 61 | get { return (ValueLookupParameter<IOperator>)Parameters["Crossover"]; }
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| 62 | }
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| 63 | public ValueLookupParameter<PercentValue> MutationProbabilityParameter {
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| 64 | get { return (ValueLookupParameter<PercentValue>)Parameters["MutationProbability"]; }
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| 65 | }
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| 66 | public ValueLookupParameter<IOperator> MutatorParameter {
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| 67 | get { return (ValueLookupParameter<IOperator>)Parameters["Mutator"]; }
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| 68 | }
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| 69 | public ValueLookupParameter<IOperator> EvaluatorParameter {
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| 70 | get { return (ValueLookupParameter<IOperator>)Parameters["Evaluator"]; }
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| 71 | }
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| 72 | public ValueLookupParameter<IntValue> ElitesParameter {
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| 73 | get { return (ValueLookupParameter<IntValue>)Parameters["Elites"]; }
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| 74 | }
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| 75 | public IValueLookupParameter<BoolValue> ReevaluateElitesParameter {
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| 76 | get { return (IValueLookupParameter<BoolValue>)Parameters["ReevaluateElites"]; }
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| 77 | }
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| 78 | public ValueLookupParameter<ResultCollection> ResultsParameter {
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| 79 | get { return (ValueLookupParameter<ResultCollection>)Parameters["Results"]; }
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| 80 | }
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| 81 | public ValueLookupParameter<IOperator> AnalyzerParameter {
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| 82 | get { return (ValueLookupParameter<IOperator>)Parameters["Analyzer"]; }
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| 83 | }
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| 84 | public ValueLookupParameter<IOperator> VillageAnalyzerParameter {
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| 85 | get { return (ValueLookupParameter<IOperator>)Parameters["VillageAnalyzer"]; }
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| 86 | }
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| 87 | public ValueLookupParameter<DoubleValue> SuccessRatioParameter {
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| 88 | get { return (ValueLookupParameter<DoubleValue>)Parameters["SuccessRatio"]; }
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| 89 | }
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| 90 | public LookupParameter<DoubleValue> ComparisonFactorParameter {
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| 91 | get { return (LookupParameter<DoubleValue>)Parameters["ComparisonFactor"]; }
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| 92 | }
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| 93 | public ValueLookupParameter<DoubleValue> ComparisonFactorStartParameter {
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| 94 | get { return (ValueLookupParameter<DoubleValue>)Parameters["ComparisonFactorStart"]; }
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| 95 | }
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| 96 | public ValueLookupParameter<IOperator> ComparisonFactorModifierParameter {
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| 97 | get { return (ValueLookupParameter<IOperator>)Parameters["ComparisonFactorModifier"]; }
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| 98 | }
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| 99 | public ValueLookupParameter<DoubleValue> MaximumSelectionPressureParameter {
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| 100 | get { return (ValueLookupParameter<DoubleValue>)Parameters["MaximumSelectionPressure"]; }
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| 101 | }
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| 102 | public ValueLookupParameter<DoubleValue> FinalMaximumSelectionPressureParameter {
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| 103 | get { return (ValueLookupParameter<DoubleValue>)Parameters["FinalMaximumSelectionPressure"]; }
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| 104 | }
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| 105 | public ValueLookupParameter<IntValue> MaximumGenerationsParameter {
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| 106 | get { return (ValueLookupParameter<IntValue>)Parameters["MaximumGenerations"]; }
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| 107 | }
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| 108 | public ValueLookupParameter<BoolValue> OffspringSelectionBeforeMutationParameter {
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| 109 | get { return (ValueLookupParameter<BoolValue>)Parameters["OffspringSelectionBeforeMutation"]; }
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| 110 | }
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| 111 | public LookupParameter<IntValue> EvaluatedSolutionsParameter {
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| 112 | get { return (LookupParameter<IntValue>)Parameters["EvaluatedSolutions"]; }
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| 113 | }
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| 114 | #endregion
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| 115 |
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| 116 | [StorableConstructor]
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| 117 | private SASEGASAMainLoop(bool deserializing) : base(deserializing) { }
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| 118 | private SASEGASAMainLoop(SASEGASAMainLoop original, Cloner cloner)
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| 119 | : base(original, cloner) {
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| 120 | }
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| 121 | public override IDeepCloneable Clone(Cloner cloner) {
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| 122 | return new SASEGASAMainLoop(this, cloner);
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| 123 | }
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| 124 | public SASEGASAMainLoop()
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| 125 | : base() {
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| 126 | #region Create parameters
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| 127 | Parameters.Add(new ValueLookupParameter<IRandom>("Random", "A pseudo random number generator."));
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| 128 | Parameters.Add(new ValueLookupParameter<BoolValue>("Maximization", "True if the problem is a maximization problem, otherwise false."));
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| 129 | Parameters.Add(new ScopeTreeLookupParameter<DoubleValue>("Quality", "The value which represents the quality of a solution."));
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| 130 | Parameters.Add(new ValueLookupParameter<DoubleValue>("BestKnownQuality", "The best known quality value found so far."));
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| 131 | Parameters.Add(new ValueLookupParameter<IntValue>("NumberOfVillages", "The initial number of villages."));
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| 132 | Parameters.Add(new ValueLookupParameter<IntValue>("MigrationInterval", "The fixed period after which migration occurs."));
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| 133 | Parameters.Add(new ValueLookupParameter<IOperator>("Selector", "The operator used to select solutions for reproduction."));
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| 134 | Parameters.Add(new ValueLookupParameter<IOperator>("Crossover", "The operator used to cross solutions."));
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| 135 | Parameters.Add(new ValueLookupParameter<PercentValue>("MutationProbability", "The probability that the mutation operator is applied on a solution."));
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| 136 | Parameters.Add(new ValueLookupParameter<IOperator>("Mutator", "The operator used to mutate solutions."));
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| 137 | Parameters.Add(new ValueLookupParameter<IOperator>("Evaluator", "The operator used to evaluate solutions. This operator is executed in parallel, if an engine is used which supports parallelization."));
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| 138 | Parameters.Add(new ValueLookupParameter<IntValue>("Elites", "The numer of elite solutions which are kept in each generation."));
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| 139 | Parameters.Add(new ValueLookupParameter<BoolValue>("ReevaluateElites", "Flag to determine if elite individuals should be reevaluated (i.e., if stochastic fitness functions are used.)"));
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| 140 | Parameters.Add(new ValueLookupParameter<ResultCollection>("Results", "The results collection to store the results."));
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| 141 | Parameters.Add(new ValueLookupParameter<IOperator>("Analyzer", "The operator used to the analyze the villages."));
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| 142 | Parameters.Add(new ValueLookupParameter<IOperator>("VillageAnalyzer", "The operator used to analyze each village."));
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| 143 | Parameters.Add(new ValueLookupParameter<DoubleValue>("SuccessRatio", "The ratio of successful to total children that should be achieved."));
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| 144 | Parameters.Add(new LookupParameter<DoubleValue>("ComparisonFactor", "The comparison factor is used to determine whether the offspring should be compared to the better parent, the worse parent or a quality value linearly interpolated between them. It is in the range [0;1]."));
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| 145 | Parameters.Add(new ValueLookupParameter<DoubleValue>("ComparisonFactorStart", "The lower bound of the comparison factor (start)."));
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| 146 | Parameters.Add(new ValueLookupParameter<IOperator>("ComparisonFactorModifier", "The operator used to modify the comparison factor."));
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| 147 | Parameters.Add(new ValueLookupParameter<DoubleValue>("MaximumSelectionPressure", "The maximum selection pressure that terminates the algorithm."));
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| 148 | Parameters.Add(new ValueLookupParameter<DoubleValue>("FinalMaximumSelectionPressure", "The maximum selection pressure used when there is only one village left."));
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| 149 | Parameters.Add(new ValueLookupParameter<IntValue>("MaximumGenerations", "The maximum genreation that terminates the algorithm."));
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| 150 | Parameters.Add(new ValueLookupParameter<BoolValue>("OffspringSelectionBeforeMutation", "True if the offspring selection step should be applied before mutation, false if it should be applied after mutation."));
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| 151 | Parameters.Add(new LookupParameter<IntValue>("EvaluatedSolutions", "The number of times solutions have been evaluated."));
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| 152 | #endregion
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| 153 |
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| 154 | #region Create operators
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| 155 | VariableCreator variableCreator = new VariableCreator();
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| 156 | Assigner maxSelPressAssigner = new Assigner();
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| 157 | Assigner villageCountAssigner = new Assigner();
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| 158 | Assigner comparisonFactorInitializer = new Assigner();
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| 159 | UniformSubScopesProcessor uniformSubScopesProcessor0 = new UniformSubScopesProcessor();
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| 160 | VariableCreator villageVariableCreator = new VariableCreator();
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| 161 | Placeholder villageAnalyzer1 = new Placeholder();
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| 162 | ResultsCollector villageResultsCollector1 = new ResultsCollector();
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| 163 | Placeholder analyzer1 = new Placeholder();
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| 164 | ResultsCollector resultsCollector1 = new ResultsCollector();
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| 165 | UniformSubScopesProcessor uniformSubScopesProcessor1 = new UniformSubScopesProcessor();
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| 166 | ConditionalBranch villageTerminatedBySelectionPressure1 = new ConditionalBranch();
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| 167 | OffspringSelectionGeneticAlgorithmMainOperator mainOperator = new OffspringSelectionGeneticAlgorithmMainOperator();
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| 168 | Placeholder villageAnalyzer2 = new Placeholder();
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| 169 | ResultsCollector villageResultsCollector2 = new ResultsCollector();
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| 170 | Comparator villageSelectionPressureComparator = new Comparator();
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| 171 | ConditionalBranch villageTerminatedBySelectionPressure2 = new ConditionalBranch();
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| 172 | IntCounter terminatedVillagesCounter = new IntCounter();
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| 173 | IntCounter generationsCounter = new IntCounter();
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| 174 | IntCounter generationsSinceLastReunificationCounter = new IntCounter();
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| 175 | Comparator reunificationComparator1 = new Comparator();
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| 176 | ConditionalBranch reunificationConditionalBranch1 = new ConditionalBranch();
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| 177 | Comparator reunificationComparator2 = new Comparator();
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| 178 | ConditionalBranch reunificationConditionalBranch2 = new ConditionalBranch();
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| 179 | Comparator reunificationComparator3 = new Comparator();
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| 180 | ConditionalBranch reunificationConditionalBranch3 = new ConditionalBranch();
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| 181 | Assigner resetTerminatedVillagesAssigner = new Assigner();
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| 182 | Assigner resetGenerationsSinceLastReunificationAssigner = new Assigner();
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| 183 | SASEGASAReunificator reunificator = new SASEGASAReunificator();
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| 184 | IntCounter reunificationCounter = new IntCounter();
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| 185 | Placeholder comparisonFactorModifier = new Placeholder();
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| 186 | UniformSubScopesProcessor uniformSubScopesProcessor2 = new UniformSubScopesProcessor();
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| 187 | Assigner villageReviver = new Assigner();
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| 188 | Comparator villageCountComparator = new Comparator();
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| 189 | ConditionalBranch villageCountConditionalBranch = new ConditionalBranch();
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| 190 | Assigner finalMaxSelPressAssigner = new Assigner();
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| 191 | Comparator maximumGenerationsComparator = new Comparator();
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| 192 | Comparator maximumEvaluatedSolutionsComparator = new Comparator();
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| 193 | Placeholder analyzer2 = new Placeholder();
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| 194 | ConditionalBranch terminationCondition = new ConditionalBranch();
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| 195 | ConditionalBranch maximumGenerationsTerminationCondition = new ConditionalBranch();
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| 196 | ConditionalBranch maximumEvaluatedSolutionsTerminationCondition = new ConditionalBranch();
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| 197 |
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| 198 | variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("Reunifications", new IntValue(0)));
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| 199 | variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("Generations", new IntValue(0))); // Class SASEGASA expects this to be called Generations
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| 200 | variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("GenerationsSinceLastReunification", new IntValue(0)));
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| 201 | variableCreator.CollectedValues.Add(new ValueParameter<IntValue>("TerminatedVillages", new IntValue(0)));
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| 202 |
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| 203 | villageCountAssigner.LeftSideParameter.ActualName = "VillageCount";
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| 204 | villageCountAssigner.RightSideParameter.ActualName = NumberOfVillagesParameter.Name;
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| 205 |
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| 206 | maxSelPressAssigner.LeftSideParameter.ActualName = "CurrentMaximumSelectionPressure";
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| 207 | maxSelPressAssigner.RightSideParameter.ActualName = MaximumSelectionPressureParameter.Name;
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| 208 |
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| 209 | comparisonFactorInitializer.LeftSideParameter.ActualName = ComparisonFactorParameter.Name;
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| 210 | comparisonFactorInitializer.RightSideParameter.ActualName = ComparisonFactorStartParameter.Name;
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| 211 |
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| 212 | villageVariableCreator.CollectedValues.Add(new ValueParameter<ResultCollection>("Results", new ResultCollection()));
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| 213 | villageVariableCreator.CollectedValues.Add(new ValueParameter<BoolValue>("TerminateSelectionPressure", new BoolValue(false)));
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| 214 | villageVariableCreator.CollectedValues.Add(new ValueParameter<DoubleValue>("SelectionPressure", new DoubleValue(0)));
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| 215 | villageVariableCreator.CollectedValues.Add(new ValueParameter<DoubleValue>("CurrentSuccessRatio", new DoubleValue(0)));
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| 216 |
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| 217 | villageAnalyzer1.Name = "Village Analyzer (placeholder)";
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| 218 | villageAnalyzer1.OperatorParameter.ActualName = VillageAnalyzerParameter.Name;
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| 219 |
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| 220 | villageResultsCollector1.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Success Ratio", "Indicates how many successful children were already found during a generation (relative to the population size).", "CurrentSuccessRatio"));
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| 221 | villageResultsCollector1.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Selection Pressure", "Displays the rising selection pressure during a generation.", "SelectionPressure"));
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| 222 | villageResultsCollector1.ResultsParameter.ActualName = "Results";
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| 223 |
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| 224 | analyzer1.Name = "Analyzer (placeholder)";
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| 225 | analyzer1.OperatorParameter.ActualName = AnalyzerParameter.Name;
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| 226 |
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| 227 | resultsCollector1.CopyValue = new BoolValue(false);
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| 228 | resultsCollector1.CollectedValues.Add(new LookupParameter<IntValue>("Generations"));
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| 229 | resultsCollector1.CollectedValues.Add(new LookupParameter<DoubleValue>("ComparisonFactor", null, ComparisonFactorParameter.Name));
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| 230 | resultsCollector1.CollectedValues.Add(new LookupParameter<IntValue>("Terminated Villages", null, "TerminatedVillages"));
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| 231 | resultsCollector1.CollectedValues.Add(new LookupParameter<IntValue>("Total Active Villages", null, "VillageCount"));
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| 232 | resultsCollector1.CollectedValues.Add(new ScopeTreeLookupParameter<ResultCollection>("VillageResults", "Result set for each village", "Results"));
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| 233 | resultsCollector1.ResultsParameter.ActualName = ResultsParameter.Name;
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| 234 |
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| 235 | villageTerminatedBySelectionPressure1.Name = "Village Terminated ?";
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| 236 | villageTerminatedBySelectionPressure1.ConditionParameter.ActualName = "TerminateSelectionPressure";
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| 237 |
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| 238 | mainOperator.ComparisonFactorParameter.ActualName = ComparisonFactorParameter.Name;
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| 239 | mainOperator.CrossoverParameter.ActualName = CrossoverParameter.Name;
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| 240 | mainOperator.CurrentSuccessRatioParameter.ActualName = "CurrentSuccessRatio";
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| 241 | mainOperator.ElitesParameter.ActualName = ElitesParameter.Name;
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| 242 | mainOperator.ReevaluateElitesParameter.ActualName = ReevaluateElitesParameter.Name;
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| 243 | mainOperator.EvaluatedSolutionsParameter.ActualName = EvaluatedSolutionsParameter.Name;
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| 244 | mainOperator.EvaluatorParameter.ActualName = EvaluatorParameter.Name;
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| 245 | mainOperator.MaximizationParameter.ActualName = MaximizationParameter.Name;
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| 246 | mainOperator.MaximumSelectionPressureParameter.ActualName = "CurrentMaximumSelectionPressure";
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| 247 | mainOperator.MutationProbabilityParameter.ActualName = MutationProbabilityParameter.Name;
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| 248 | mainOperator.MutatorParameter.ActualName = MutatorParameter.Name;
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| 249 | mainOperator.OffspringSelectionBeforeMutationParameter.ActualName = OffspringSelectionBeforeMutationParameter.Name;
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| 250 | mainOperator.QualityParameter.ActualName = QualityParameter.Name;
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| 251 | mainOperator.RandomParameter.ActualName = RandomParameter.Name;
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| 252 | mainOperator.SelectionPressureParameter.ActualName = "SelectionPressure";
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| 253 | mainOperator.SelectorParameter.ActualName = SelectorParameter.Name;
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| 254 | mainOperator.SuccessRatioParameter.ActualName = SuccessRatioParameter.Name;
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| 255 |
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| 256 | villageAnalyzer2.Name = "Village Analyzer (placeholder)";
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| 257 | villageAnalyzer2.OperatorParameter.ActualName = VillageAnalyzerParameter.Name;
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| 258 |
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| 259 | villageResultsCollector2.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Success Ratio", "Indicates how many successful children were already found during a generation (relative to the population size).", "CurrentSuccessRatio"));
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| 260 | villageResultsCollector2.CollectedValues.Add(new LookupParameter<DoubleValue>("Current Selection Pressure", "Displays the rising selection pressure during a generation.", "SelectionPressure"));
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| 261 | villageResultsCollector2.ResultsParameter.ActualName = "Results";
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| 262 |
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| 263 | villageSelectionPressureComparator.Name = "SelectionPressure >= MaximumSelectionPressure ?";
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| 264 | villageSelectionPressureComparator.LeftSideParameter.ActualName = "SelectionPressure";
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| 265 | villageSelectionPressureComparator.Comparison = new Comparison(ComparisonType.GreaterOrEqual);
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| 266 | villageSelectionPressureComparator.RightSideParameter.ActualName = MaximumSelectionPressureParameter.Name;
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| 267 | villageSelectionPressureComparator.ResultParameter.ActualName = "TerminateSelectionPressure";
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| 268 |
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| 269 | villageTerminatedBySelectionPressure2.Name = "Village Terminated ?";
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| 270 | villageTerminatedBySelectionPressure2.ConditionParameter.ActualName = "TerminateSelectionPressure";
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| 271 |
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| 272 | terminatedVillagesCounter.Name = "TerminatedVillages + 1";
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| 273 | terminatedVillagesCounter.ValueParameter.ActualName = "TerminatedVillages";
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| 274 | terminatedVillagesCounter.Increment = new IntValue(1);
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| 275 |
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| 276 | generationsCounter.Name = "Generations + 1";
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| 277 | generationsCounter.ValueParameter.ActualName = "Generations";
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| 278 | generationsCounter.Increment = new IntValue(1);
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| 279 |
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| 280 | generationsSinceLastReunificationCounter.Name = "GenerationsSinceLastReunification + 1";
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| 281 | generationsSinceLastReunificationCounter.ValueParameter.ActualName = "GenerationsSinceLastReunification";
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| 282 | generationsSinceLastReunificationCounter.Increment = new IntValue(1);
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| 283 |
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| 284 | reunificationComparator1.Name = "TerminatedVillages = VillageCount ?";
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| 285 | reunificationComparator1.LeftSideParameter.ActualName = "TerminatedVillages";
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| 286 | reunificationComparator1.Comparison = new Comparison(ComparisonType.Equal);
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| 287 | reunificationComparator1.RightSideParameter.ActualName = "VillageCount";
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| 288 | reunificationComparator1.ResultParameter.ActualName = "Reunificate";
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| 289 |
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| 290 | reunificationConditionalBranch1.Name = "Reunificate ?";
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| 291 | reunificationConditionalBranch1.ConditionParameter.ActualName = "Reunificate";
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| 292 |
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| 293 | reunificationComparator2.Name = "GenerationsSinceLastReunification = MigrationInterval ?";
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| 294 | reunificationComparator2.LeftSideParameter.ActualName = "GenerationsSinceLastReunification";
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| 295 | reunificationComparator2.Comparison = new Comparison(ComparisonType.Equal);
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| 296 | reunificationComparator2.RightSideParameter.ActualName = "MigrationInterval";
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| 297 | reunificationComparator2.ResultParameter.ActualName = "Reunificate";
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| 298 |
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| 299 | reunificationConditionalBranch2.Name = "Reunificate ?";
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| 300 | reunificationConditionalBranch2.ConditionParameter.ActualName = "Reunificate";
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| 301 |
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| 302 | // if there's just one village left and we're getting to this point SASEGASA terminates
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| 303 | reunificationComparator3.Name = "VillageCount <= 1 ?";
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| 304 | reunificationComparator3.LeftSideParameter.ActualName = "VillageCount";
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| 305 | reunificationComparator3.RightSideParameter.Value = new IntValue(1);
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| 306 | reunificationComparator3.Comparison.Value = ComparisonType.LessOrEqual;
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| 307 | reunificationComparator3.ResultParameter.ActualName = "TerminateSASEGASA";
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| 308 |
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| 309 | reunificationConditionalBranch3.Name = "Skip reunification?";
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| 310 | reunificationConditionalBranch3.ConditionParameter.ActualName = "TerminateSASEGASA";
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| 311 |
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| 312 | resetTerminatedVillagesAssigner.Name = "Reset TerminatedVillages";
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| 313 | resetTerminatedVillagesAssigner.LeftSideParameter.ActualName = "TerminatedVillages";
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| 314 | resetTerminatedVillagesAssigner.RightSideParameter.Value = new IntValue(0);
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| 315 |
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| 316 | resetGenerationsSinceLastReunificationAssigner.Name = "Reset GenerationsSinceLastReunification";
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| 317 | resetGenerationsSinceLastReunificationAssigner.LeftSideParameter.ActualName = "GenerationsSinceLastReunification";
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| 318 | resetGenerationsSinceLastReunificationAssigner.RightSideParameter.Value = new IntValue(0);
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| 319 |
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| 320 | reunificator.VillageCountParameter.ActualName = "VillageCount";
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| 321 |
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| 322 | reunificationCounter.ValueParameter.ActualName = "Reunifications"; // this variable is referenced in SASEGASA, do not change!
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| 323 | reunificationCounter.IncrementParameter.Value = new IntValue(1);
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| 324 |
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| 325 | comparisonFactorModifier.Name = "Update comparison factor (placeholder)";
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| 326 | comparisonFactorModifier.OperatorParameter.ActualName = ComparisonFactorModifierParameter.Name;
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| 327 |
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| 328 | villageReviver.Name = "Village Reviver";
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| 329 | villageReviver.LeftSideParameter.ActualName = "TerminateSelectionPressure";
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| 330 | villageReviver.RightSideParameter.Value = new BoolValue(false);
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| 331 |
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| 332 | villageCountComparator.Name = "VillageCount == 1 ?";
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| 333 | villageCountComparator.LeftSideParameter.ActualName = "VillageCount";
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| 334 | villageCountComparator.RightSideParameter.Value = new IntValue(1);
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| 335 | villageCountComparator.Comparison.Value = ComparisonType.Equal;
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| 336 | villageCountComparator.ResultParameter.ActualName = "ChangeMaxSelPress";
|
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| 337 |
|
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| 338 | villageCountConditionalBranch.Name = "Change max selection pressure?";
|
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| 339 | villageCountConditionalBranch.ConditionParameter.ActualName = "ChangeMaxSelPress";
|
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| 340 |
|
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| 341 | finalMaxSelPressAssigner.LeftSideParameter.ActualName = "CurrentMaximumSelectionPressure";
|
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| 342 | finalMaxSelPressAssigner.RightSideParameter.ActualName = FinalMaximumSelectionPressureParameter.Name;
|
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| 343 |
|
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| 344 | // if Generations is reaching MaximumGenerations we're also terminating
|
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| 345 | maximumGenerationsComparator.LeftSideParameter.ActualName = "Generations";
|
|---|
| 346 | maximumGenerationsComparator.RightSideParameter.ActualName = MaximumGenerationsParameter.Name;
|
|---|
| 347 | maximumGenerationsComparator.Comparison = new Comparison(ComparisonType.GreaterOrEqual);
|
|---|
| 348 | maximumGenerationsComparator.ResultParameter.ActualName = "TerminateMaximumGenerations";
|
|---|
| 349 |
|
|---|
| 350 | maximumEvaluatedSolutionsComparator.Name = "EvaluatedSolutions >= MaximumEvaluatedSolutions";
|
|---|
| 351 | maximumEvaluatedSolutionsComparator.Comparison = new Comparison(ComparisonType.GreaterOrEqual);
|
|---|
| 352 | maximumEvaluatedSolutionsComparator.LeftSideParameter.ActualName = EvaluatedSolutionsParameter.Name;
|
|---|
| 353 | maximumEvaluatedSolutionsComparator.ResultParameter.ActualName = "TerminateEvaluatedSolutions";
|
|---|
| 354 | maximumEvaluatedSolutionsComparator.RightSideParameter.ActualName = "MaximumEvaluatedSolutions";
|
|---|
| 355 |
|
|---|
| 356 | analyzer2.Name = "Analyzer (placeholder)";
|
|---|
| 357 | analyzer2.OperatorParameter.ActualName = AnalyzerParameter.Name;
|
|---|
| 358 |
|
|---|
| 359 | terminationCondition.ConditionParameter.ActualName = "TerminateSASEGASA";
|
|---|
| 360 | maximumGenerationsTerminationCondition.ConditionParameter.ActualName = "TerminateMaximumGenerations";
|
|---|
| 361 | maximumEvaluatedSolutionsTerminationCondition.ConditionParameter.ActualName = "TerminateEvaluatedSolutions";
|
|---|
| 362 | #endregion
|
|---|
| 363 |
|
|---|
| 364 | #region Create operator graph
|
|---|
| 365 | OperatorGraph.InitialOperator = variableCreator;
|
|---|
| 366 | variableCreator.Successor = maxSelPressAssigner;
|
|---|
| 367 | maxSelPressAssigner.Successor = villageCountAssigner;
|
|---|
| 368 | villageCountAssigner.Successor = comparisonFactorInitializer;
|
|---|
| 369 | comparisonFactorInitializer.Successor = uniformSubScopesProcessor0;
|
|---|
| 370 | uniformSubScopesProcessor0.Operator = villageVariableCreator;
|
|---|
| 371 | uniformSubScopesProcessor0.Successor = analyzer1;
|
|---|
| 372 | villageVariableCreator.Successor = villageAnalyzer1;
|
|---|
| 373 | villageAnalyzer1.Successor = villageResultsCollector1;
|
|---|
| 374 | analyzer1.Successor = resultsCollector1;
|
|---|
| 375 | resultsCollector1.Successor = uniformSubScopesProcessor1;
|
|---|
| 376 | uniformSubScopesProcessor1.Operator = villageTerminatedBySelectionPressure1;
|
|---|
| 377 | uniformSubScopesProcessor1.Successor = generationsCounter;
|
|---|
| 378 | villageTerminatedBySelectionPressure1.TrueBranch = null;
|
|---|
| 379 | villageTerminatedBySelectionPressure1.FalseBranch = mainOperator;
|
|---|
| 380 | villageTerminatedBySelectionPressure1.Successor = null;
|
|---|
| 381 | mainOperator.Successor = villageAnalyzer2;
|
|---|
| 382 | villageAnalyzer2.Successor = villageResultsCollector2;
|
|---|
| 383 | villageResultsCollector2.Successor = villageSelectionPressureComparator;
|
|---|
| 384 | villageSelectionPressureComparator.Successor = villageTerminatedBySelectionPressure2;
|
|---|
| 385 | villageTerminatedBySelectionPressure2.TrueBranch = terminatedVillagesCounter;
|
|---|
| 386 | villageTerminatedBySelectionPressure2.FalseBranch = null;
|
|---|
| 387 | villageTerminatedBySelectionPressure2.Successor = null;
|
|---|
| 388 | terminatedVillagesCounter.Successor = null;
|
|---|
| 389 | generationsCounter.Successor = generationsSinceLastReunificationCounter;
|
|---|
| 390 | generationsSinceLastReunificationCounter.Successor = reunificationComparator1;
|
|---|
| 391 | reunificationComparator1.Successor = reunificationConditionalBranch1;
|
|---|
| 392 | reunificationConditionalBranch1.TrueBranch = reunificationComparator3;
|
|---|
| 393 | reunificationConditionalBranch1.FalseBranch = reunificationComparator2;
|
|---|
| 394 | reunificationConditionalBranch1.Successor = maximumGenerationsComparator;
|
|---|
| 395 | reunificationComparator2.Successor = reunificationConditionalBranch2;
|
|---|
| 396 | reunificationConditionalBranch2.TrueBranch = reunificationComparator3;
|
|---|
| 397 | reunificationConditionalBranch2.FalseBranch = null;
|
|---|
| 398 | reunificationConditionalBranch2.Successor = null;
|
|---|
| 399 | reunificationComparator3.Successor = reunificationConditionalBranch3;
|
|---|
| 400 | reunificationConditionalBranch3.TrueBranch = null;
|
|---|
| 401 | reunificationConditionalBranch3.FalseBranch = resetTerminatedVillagesAssigner;
|
|---|
| 402 | reunificationConditionalBranch3.Successor = null;
|
|---|
| 403 | resetTerminatedVillagesAssigner.Successor = resetGenerationsSinceLastReunificationAssigner;
|
|---|
| 404 | resetGenerationsSinceLastReunificationAssigner.Successor = reunificator;
|
|---|
| 405 | reunificator.Successor = reunificationCounter;
|
|---|
| 406 | reunificationCounter.Successor = comparisonFactorModifier;
|
|---|
| 407 | comparisonFactorModifier.Successor = uniformSubScopesProcessor2;
|
|---|
| 408 | uniformSubScopesProcessor2.Operator = villageReviver;
|
|---|
| 409 | uniformSubScopesProcessor2.Successor = villageCountComparator;
|
|---|
| 410 | villageReviver.Successor = null;
|
|---|
| 411 | villageCountComparator.Successor = villageCountConditionalBranch;
|
|---|
| 412 | villageCountConditionalBranch.TrueBranch = finalMaxSelPressAssigner;
|
|---|
| 413 | villageCountConditionalBranch.FalseBranch = null;
|
|---|
| 414 | villageCountConditionalBranch.Successor = null;
|
|---|
| 415 | finalMaxSelPressAssigner.Successor = null;
|
|---|
| 416 | maximumGenerationsComparator.Successor = maximumEvaluatedSolutionsComparator;
|
|---|
| 417 | maximumEvaluatedSolutionsComparator.Successor = analyzer2;
|
|---|
| 418 | analyzer2.Successor = terminationCondition;
|
|---|
| 419 | terminationCondition.TrueBranch = null;
|
|---|
| 420 | terminationCondition.FalseBranch = maximumGenerationsTerminationCondition;
|
|---|
| 421 | terminationCondition.Successor = null;
|
|---|
| 422 | maximumGenerationsTerminationCondition.TrueBranch = null;
|
|---|
| 423 | maximumGenerationsTerminationCondition.FalseBranch = maximumEvaluatedSolutionsTerminationCondition;
|
|---|
| 424 | maximumGenerationsTerminationCondition.Successor = null;
|
|---|
| 425 | maximumEvaluatedSolutionsTerminationCondition.TrueBranch = null;
|
|---|
| 426 | maximumEvaluatedSolutionsTerminationCondition.FalseBranch = uniformSubScopesProcessor1;
|
|---|
| 427 | maximumEvaluatedSolutionsTerminationCondition.Successor = null;
|
|---|
| 428 | #endregion
|
|---|
| 429 | }
|
|---|
| 430 |
|
|---|
| 431 | [StorableHook(HookType.AfterDeserialization)]
|
|---|
| 432 | private void AfterDeserialization() {
|
|---|
| 433 | // BackwardsCompatibility3.3
|
|---|
| 434 | #region Backwards compatible code, remove with 3.4
|
|---|
| 435 | if (!Parameters.ContainsKey("ReevaluateElites")) {
|
|---|
| 436 | Parameters.Add(new ValueLookupParameter<BoolValue>("ReevaluateElites", "Flag to determine if elite individuals should be reevaluated (i.e., if stochastic fitness functions are used.)"));
|
|---|
| 437 | }
|
|---|
| 438 | #endregion
|
|---|
| 439 | }
|
|---|
| 440 |
|
|---|
| 441 | public override IOperation Apply() {
|
|---|
| 442 | if (CrossoverParameter.ActualValue == null)
|
|---|
| 443 | return null;
|
|---|
| 444 | return base.Apply();
|
|---|
| 445 | }
|
|---|
| 446 | }
|
|---|
| 447 | }
|
|---|
