[3150] | 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2010 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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| 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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| 22 | using System;
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| 23 | using System.Collections.Generic;
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| 24 | using System.Collections.ObjectModel;
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| 25 | using System.Drawing;
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| 26 | using System.Linq;
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| 27 | using HeuristicLab.Common;
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| 28 | using HeuristicLab.Core;
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| 29 | using HeuristicLab.Data;
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| 30 | using HeuristicLab.Encodings.RealVectorEncoding;
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| 31 | using HeuristicLab.Optimization;
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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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[3682] | 35 | using HeuristicLab.Operators;
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[3647] | 36 | using HeuristicLab.Problems.TestFunctions.Analyzers;
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[3150] | 37 |
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[3170] | 38 | namespace HeuristicLab.Problems.TestFunctions {
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[3221] | 39 | [Item("Single Objective Test Function", "Test function with real valued inputs and a single objective.")]
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[3150] | 40 | [StorableClass]
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| 41 | [Creatable("Problems")]
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[3170] | 42 | public sealed class SingleObjectiveTestFunctionProblem : ParameterizedNamedItem, ISingleObjectiveProblem {
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[3336] | 43 | [Storable]
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[3450] | 44 | private StdDevStrategyVectorCreator strategyVectorCreator;
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[3336] | 45 | [Storable]
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[3450] | 46 | private StdDevStrategyVectorCrossover strategyVectorCrossover;
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[3336] | 47 | [Storable]
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[3450] | 48 | private StdDevStrategyVectorManipulator strategyVectorManipulator;
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[3336] | 49 |
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[3150] | 50 | public override Image ItemImage {
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| 51 | get { return HeuristicLab.Common.Resources.VS2008ImageLibrary.Type; }
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| 52 | }
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| 53 |
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| 54 | #region Parameter Properties
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| 55 | public ValueParameter<BoolValue> MaximizationParameter {
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| 56 | get { return (ValueParameter<BoolValue>)Parameters["Maximization"]; }
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| 57 | }
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| 58 | IParameter ISingleObjectiveProblem.MaximizationParameter {
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| 59 | get { return MaximizationParameter; }
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| 60 | }
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| 61 | public ValueParameter<DoubleMatrix> BoundsParameter {
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| 62 | get { return (ValueParameter<DoubleMatrix>)Parameters["Bounds"]; }
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| 63 | }
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| 64 | public ValueParameter<IntValue> ProblemSizeParameter {
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| 65 | get { return (ValueParameter<IntValue>)Parameters["ProblemSize"]; }
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| 66 | }
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| 67 | public ValueParameter<IRealVectorCreator> SolutionCreatorParameter {
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| 68 | get { return (ValueParameter<IRealVectorCreator>)Parameters["SolutionCreator"]; }
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| 69 | }
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| 70 | IParameter IProblem.SolutionCreatorParameter {
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| 71 | get { return SolutionCreatorParameter; }
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| 72 | }
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[3170] | 73 | public ValueParameter<ISingleObjectiveTestFunctionProblemEvaluator> EvaluatorParameter {
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| 74 | get { return (ValueParameter<ISingleObjectiveTestFunctionProblemEvaluator>)Parameters["Evaluator"]; }
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[3150] | 75 | }
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| 76 | IParameter IProblem.EvaluatorParameter {
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| 77 | get { return EvaluatorParameter; }
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| 78 | }
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| 79 | public OptionalValueParameter<DoubleValue> BestKnownQualityParameter {
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| 80 | get { return (OptionalValueParameter<DoubleValue>)Parameters["BestKnownQuality"]; }
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| 81 | }
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| 82 | IParameter ISingleObjectiveProblem.BestKnownQualityParameter {
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| 83 | get { return BestKnownQualityParameter; }
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| 84 | }
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| 85 | #endregion
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| 86 |
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| 87 | #region Properties
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[3154] | 88 | public BoolValue Maximization {
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| 89 | get { return MaximizationParameter.Value; }
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| 90 | set { MaximizationParameter.Value = value; }
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| 91 | }
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[3150] | 92 | public DoubleMatrix Bounds {
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| 93 | get { return BoundsParameter.Value; }
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| 94 | set { BoundsParameter.Value = value; }
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| 95 | }
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| 96 | public IntValue ProblemSize {
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| 97 | get { return ProblemSizeParameter.Value; }
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| 98 | set { ProblemSizeParameter.Value = value; }
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| 99 | }
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| 100 | public IRealVectorCreator SolutionCreator {
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| 101 | get { return SolutionCreatorParameter.Value; }
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| 102 | set { SolutionCreatorParameter.Value = value; }
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| 103 | }
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| 104 | ISolutionCreator IProblem.SolutionCreator {
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| 105 | get { return SolutionCreatorParameter.Value; }
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| 106 | }
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[3170] | 107 | public ISingleObjectiveTestFunctionProblemEvaluator Evaluator {
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[3150] | 108 | get { return EvaluatorParameter.Value; }
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| 109 | set { EvaluatorParameter.Value = value; }
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| 110 | }
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| 111 | ISingleObjectiveEvaluator ISingleObjectiveProblem.Evaluator {
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| 112 | get { return EvaluatorParameter.Value; }
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| 113 | }
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| 114 | IEvaluator IProblem.Evaluator {
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| 115 | get { return EvaluatorParameter.Value; }
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| 116 | }
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| 117 | public DoubleValue BestKnownQuality {
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| 118 | get { return BestKnownQualityParameter.Value; }
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| 119 | set { BestKnownQualityParameter.Value = value; }
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| 120 | }
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[3187] | 121 | private List<IOperator> operators;
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[3150] | 122 | public IEnumerable<IOperator> Operators {
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[3187] | 123 | get { return operators; }
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[3150] | 124 | }
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[3647] | 125 | private IEnumerable<IBestSingleObjectiveTestFunctionSolutionAnalyzer> BestSingleObjectiveTestFunctionSolutionAnalyzers {
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| 126 | get { return operators.OfType<IBestSingleObjectiveTestFunctionSolutionAnalyzer>(); }
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| 127 | }
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[3150] | 128 | #endregion
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| 129 |
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| 130 | [StorableConstructor]
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[3170] | 131 | private SingleObjectiveTestFunctionProblem(bool deserializing) : base() { }
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| 132 | public SingleObjectiveTestFunctionProblem()
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[3150] | 133 | : base() {
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| 134 | UniformRandomRealVectorCreator creator = new UniformRandomRealVectorCreator();
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| 135 | AckleyEvaluator evaluator = new AckleyEvaluator();
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| 136 |
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| 137 | Parameters.Add(new ValueParameter<BoolValue>("Maximization", "Set to false as most test functions are minimization problems.", new BoolValue(evaluator.Maximization)));
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| 138 | Parameters.Add(new ValueParameter<DoubleMatrix>("Bounds", "The lower and upper bounds in each dimension.", evaluator.Bounds));
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| 139 | Parameters.Add(new ValueParameter<IntValue>("ProblemSize", "The dimension of the problem.", new IntValue(2)));
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[3685] | 140 | Parameters.Add(new ValueParameter<IRealVectorCreator>("SolutionCreator", "The operator which should be used to create new test function solutions.", creator));
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| 141 | Parameters.Add(new ValueParameter<ISingleObjectiveTestFunctionProblemEvaluator>("Evaluator", "The operator which should be used to evaluate test function solutions.", evaluator));
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| 142 | Parameters.Add(new OptionalValueParameter<DoubleValue>("BestKnownQuality", "The quality of the best known solution of this test function.", new DoubleValue(evaluator.BestKnownQuality)));
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[3150] | 143 |
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[3450] | 144 | strategyVectorCreator = new StdDevStrategyVectorCreator();
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[3336] | 145 | strategyVectorCreator.LengthParameter.ActualName = ProblemSizeParameter.Name;
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[3450] | 146 | strategyVectorCrossover = new StdDevStrategyVectorCrossover();
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| 147 | strategyVectorManipulator = new StdDevStrategyVectorManipulator();
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| 148 | strategyVectorManipulator.LearningRateParameter.Value = new DoubleValue(0.5);
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| 149 | strategyVectorManipulator.GeneralLearningRateParameter.Value = new DoubleValue(0.5);
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[3336] | 150 |
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[3150] | 151 | creator.RealVectorParameter.ActualName = "Point";
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| 152 | ParameterizeSolutionCreator();
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| 153 | ParameterizeEvaluator();
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| 154 |
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| 155 | Initialize();
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| 156 | }
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| 157 |
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| 158 | public override IDeepCloneable Clone(Cloner cloner) {
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[3170] | 159 | SingleObjectiveTestFunctionProblem clone = (SingleObjectiveTestFunctionProblem)base.Clone(cloner);
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[3150] | 160 | clone.Initialize();
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| 161 | return clone;
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| 162 | }
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| 163 |
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| 164 | #region Events
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| 165 | public event EventHandler SolutionCreatorChanged;
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| 166 | private void OnSolutionCreatorChanged() {
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| 167 | if (SolutionCreatorChanged != null)
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| 168 | SolutionCreatorChanged(this, EventArgs.Empty);
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| 169 | }
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| 170 | public event EventHandler EvaluatorChanged;
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| 171 | private void OnEvaluatorChanged() {
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| 172 | if (EvaluatorChanged != null)
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| 173 | EvaluatorChanged(this, EventArgs.Empty);
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| 174 | }
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| 175 | public event EventHandler OperatorsChanged;
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| 176 | private void OnOperatorsChanged() {
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| 177 | if (OperatorsChanged != null)
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| 178 | OperatorsChanged(this, EventArgs.Empty);
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| 179 | }
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| 180 | private void ProblemSizeParameter_ValueChanged(object sender, EventArgs e) {
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| 181 | ProblemSize.ValueChanged += new EventHandler(ProblemSize_ValueChanged);
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| 182 | ProblemSize_ValueChanged(null, EventArgs.Empty);
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| 183 | }
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| 184 | private void ProblemSize_ValueChanged(object sender, EventArgs e) {
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[3336] | 185 | if (ProblemSize.Value < 1) ProblemSize.Value = 1;
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[3150] | 186 | ParameterizeSolutionCreator();
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[3336] | 187 | strategyVectorManipulator.GeneralLearningRateParameter.Value = new DoubleValue(1.0 / Math.Sqrt(2 * ProblemSize.Value));
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| 188 | strategyVectorManipulator.LearningRateParameter.Value = new DoubleValue(1.0 / Math.Sqrt(2 * Math.Sqrt(ProblemSize.Value)));
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[3150] | 189 | }
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| 190 | private void SolutionCreatorParameter_ValueChanged(object sender, EventArgs e) {
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| 191 | ParameterizeSolutionCreator();
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[3647] | 192 | ParameterizeAnalyzers();
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[3150] | 193 | SolutionCreator_RealVectorParameter_ActualNameChanged(null, EventArgs.Empty);
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| 194 | }
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| 195 | private void SolutionCreator_RealVectorParameter_ActualNameChanged(object sender, EventArgs e) {
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| 196 | ParameterizeEvaluator();
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| 197 | ParameterizeOperators();
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[3647] | 198 | ParameterizeAnalyzers();
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[3150] | 199 | }
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| 200 | private void EvaluatorParameter_ValueChanged(object sender, EventArgs e) {
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| 201 | ParameterizeEvaluator();
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[3187] | 202 | UpdateMoveEvaluators();
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[3647] | 203 | ParameterizeAnalyzers();
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[3154] | 204 | Maximization.Value = Evaluator.Maximization;
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| 205 | BoundsParameter.Value = Evaluator.Bounds;
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| 206 | if (ProblemSize.Value < Evaluator.MinimumProblemSize)
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| 207 | ProblemSize.Value = Evaluator.MinimumProblemSize;
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| 208 | else if (ProblemSize.Value > Evaluator.MaximumProblemSize)
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| 209 | ProblemSize.Value = Evaluator.MaximumProblemSize;
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| 210 | BestKnownQuality = new DoubleValue(Evaluator.BestKnownQuality);
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[3150] | 211 | Evaluator_QualityParameter_ActualNameChanged(null, EventArgs.Empty);
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| 212 | }
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| 213 | private void Evaluator_QualityParameter_ActualNameChanged(object sender, EventArgs e) {
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| 214 | ParameterizeOperators();
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| 215 | }
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[3154] | 216 | private void BoundsParameter_ValueChanged(object sender, EventArgs e) {
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| 217 | Bounds.ToStringChanged += new EventHandler(Bounds_ToStringChanged);
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| 218 | Bounds_ToStringChanged(null, EventArgs.Empty);
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| 219 | }
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| 220 | private void Bounds_ToStringChanged(object sender, EventArgs e) {
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| 221 | if (Bounds.Columns != 2 || Bounds.Rows < 1)
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| 222 | Bounds = new DoubleMatrix(1, 2);
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| 223 | }
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| 224 | private void Bounds_ItemChanged(object sender, EventArgs<int, int> e) {
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| 225 | if (e.Value2 == 0 && Bounds[e.Value, 1] <= Bounds[e.Value, 0])
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| 226 | Bounds[e.Value, 1] = Bounds[e.Value, 0] + 0.1;
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| 227 | if (e.Value2 == 1 && Bounds[e.Value, 0] >= Bounds[e.Value, 1])
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| 228 | Bounds[e.Value, 0] = Bounds[e.Value, 1] - 0.1;
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| 229 | }
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[3187] | 230 | private void MoveGenerator_AdditiveMoveParameter_ActualNameChanged(object sender, EventArgs e) {
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| 231 | string name = ((ILookupParameter<AdditiveMove>)sender).ActualName;
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| 232 | foreach (IAdditiveRealVectorMoveOperator op in Operators.OfType<IAdditiveRealVectorMoveOperator>()) {
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| 233 | op.AdditiveMoveParameter.ActualName = name;
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| 234 | }
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[3182] | 235 | }
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[3318] | 236 | private void SphereEvaluator_Parameter_ValueChanged(object sender, EventArgs e) {
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| 237 | SphereEvaluator eval = (Evaluator as SphereEvaluator);
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| 238 | if (eval != null) {
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| 239 | foreach (ISphereMoveEvaluator op in Operators.OfType<ISphereMoveEvaluator>()) {
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| 240 | op.C = eval.C;
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| 241 | op.Alpha = eval.Alpha;
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| 242 | }
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| 243 | }
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| 244 | }
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| 245 | private void RastriginEvaluator_Parameter_ValueChanged(object sender, EventArgs e) {
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| 246 | RastriginEvaluator eval = (Evaluator as RastriginEvaluator);
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| 247 | if (eval != null) {
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| 248 | foreach (IRastriginMoveEvaluator op in Operators.OfType<IRastriginMoveEvaluator>()) {
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| 249 | op.A = eval.A;
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| 250 | }
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| 251 | }
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| 252 | }
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[3336] | 253 | private void strategyVectorCreator_BoundsParameter_ValueChanged(object sender, EventArgs e) {
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| 254 | strategyVectorManipulator.BoundsParameter.Value = strategyVectorCreator.BoundsParameter.Value;
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| 255 | }
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| 256 | private void strategyVectorCreator_StrategyParameterParameter_ActualNameChanged(object sender, EventArgs e) {
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| 257 | string name = strategyVectorCreator.StrategyParameterParameter.ActualName;
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| 258 | strategyVectorCrossover.ParentsParameter.ActualName = name;
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| 259 | strategyVectorCrossover.StrategyParameterParameter.ActualName = name;
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| 260 | strategyVectorManipulator.StrategyParameterParameter.ActualName = name;
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| 261 | }
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[3150] | 262 | #endregion
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| 263 |
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| 264 | #region Helpers
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| 265 | [StorableHook(HookType.AfterDeserialization)]
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| 266 | private void Initialize() {
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| 267 | InitializeOperators();
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| 268 | ProblemSizeParameter.ValueChanged += new EventHandler(ProblemSizeParameter_ValueChanged);
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| 269 | ProblemSize.ValueChanged += new EventHandler(ProblemSize_ValueChanged);
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[3154] | 270 | BoundsParameter.ValueChanged += new EventHandler(BoundsParameter_ValueChanged);
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| 271 | Bounds.ToStringChanged += new EventHandler(Bounds_ToStringChanged);
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| 272 | Bounds.ItemChanged += new EventHandler<EventArgs<int, int>>(Bounds_ItemChanged);
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[3150] | 273 | SolutionCreatorParameter.ValueChanged += new EventHandler(SolutionCreatorParameter_ValueChanged);
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| 274 | SolutionCreator.RealVectorParameter.ActualNameChanged += new EventHandler(SolutionCreator_RealVectorParameter_ActualNameChanged);
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| 275 | EvaluatorParameter.ValueChanged += new EventHandler(EvaluatorParameter_ValueChanged);
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| 276 | Evaluator.QualityParameter.ActualNameChanged += new EventHandler(Evaluator_QualityParameter_ActualNameChanged);
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[3336] | 277 | strategyVectorCreator.BoundsParameter.ValueChanged += new EventHandler(strategyVectorCreator_BoundsParameter_ValueChanged);
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| 278 | strategyVectorCreator.StrategyParameterParameter.ActualNameChanged += new EventHandler(strategyVectorCreator_StrategyParameterParameter_ActualNameChanged);
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[3150] | 279 | }
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[3647] | 280 | private void ParameterizeAnalyzers() {
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| 281 | foreach (IBestSingleObjectiveTestFunctionSolutionAnalyzer analyzer in BestSingleObjectiveTestFunctionSolutionAnalyzers) {
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| 282 | analyzer.RealVectorParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
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| 283 | analyzer.ResultsParameter.ActualName = "Results";
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| 284 | }
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| 285 | }
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[3150] | 286 | private void InitializeOperators() {
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[3187] | 287 | operators = new List<IOperator>();
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[3647] | 288 | operators.Add(new BestSingleObjectiveTestFunctionSolutionAnalyzer());
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| 289 | ParameterizeAnalyzers();
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[3303] | 290 | operators.AddRange(ApplicationManager.Manager.GetInstances<IRealVectorOperator>().Cast<IOperator>());
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[3336] | 291 | operators.Add(strategyVectorCreator);
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| 292 | operators.Add(strategyVectorCrossover);
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| 293 | operators.Add(strategyVectorManipulator);
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[3209] | 294 | UpdateMoveEvaluators();
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| 295 | ParameterizeOperators();
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[3187] | 296 | InitializeMoveGenerators();
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[3150] | 297 | }
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[3187] | 298 | private void InitializeMoveGenerators() {
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| 299 | foreach (IAdditiveRealVectorMoveOperator op in Operators.OfType<IAdditiveRealVectorMoveOperator>()) {
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[3150] | 300 | if (op is IMoveGenerator) {
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[3187] | 301 | op.AdditiveMoveParameter.ActualNameChanged += new EventHandler(MoveGenerator_AdditiveMoveParameter_ActualNameChanged);
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[3150] | 302 | }
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| 303 | }
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[3187] | 304 | }
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| 305 | private void UpdateMoveEvaluators() {
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[3303] | 306 | foreach (ISingleObjectiveTestFunctionMoveEvaluator op in Operators.OfType<ISingleObjectiveTestFunctionMoveEvaluator>().ToList())
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| 307 | operators.Remove(op);
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| 308 | foreach (ISingleObjectiveTestFunctionMoveEvaluator op in ApplicationManager.Manager.GetInstances<ISingleObjectiveTestFunctionMoveEvaluator>())
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| 309 | if (op.EvaluatorType == Evaluator.GetType()) {
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| 310 | operators.Add(op);
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[3318] | 311 | #region Synchronize evaluator specific parameters with the parameters of the corresponding move evaluators
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| 312 | if (op is ISphereMoveEvaluator) {
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| 313 | SphereEvaluator e = (Evaluator as SphereEvaluator);
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| 314 | e.AlphaParameter.ValueChanged += new EventHandler(SphereEvaluator_Parameter_ValueChanged);
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| 315 | e.CParameter.ValueChanged += new EventHandler(SphereEvaluator_Parameter_ValueChanged);
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| 316 | ISphereMoveEvaluator em = (op as ISphereMoveEvaluator);
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| 317 | em.C = e.C;
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| 318 | em.Alpha = e.Alpha;
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| 319 | } else if (op is IRastriginMoveEvaluator) {
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| 320 | RastriginEvaluator e = (Evaluator as RastriginEvaluator);
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| 321 | e.AParameter.ValueChanged += new EventHandler(RastriginEvaluator_Parameter_ValueChanged);
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| 322 | IRastriginMoveEvaluator em = (op as IRastriginMoveEvaluator);
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| 323 | em.A = e.A;
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| 324 | }
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| 325 | #endregion
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[3303] | 326 | }
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| 327 | ParameterizeOperators();
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| 328 | OnOperatorsChanged();
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[3187] | 329 | }
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[3150] | 330 | private void ParameterizeSolutionCreator() {
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| 331 | SolutionCreator.LengthParameter.Value = new IntValue(ProblemSize.Value);
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| 332 | }
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| 333 | private void ParameterizeEvaluator() {
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| 334 | Evaluator.PointParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
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| 335 | }
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| 336 | private void ParameterizeOperators() {
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| 337 | foreach (IRealVectorCrossover op in Operators.OfType<IRealVectorCrossover>()) {
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| 338 | op.ParentsParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
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| 339 | op.ChildParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
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[3182] | 340 | op.BoundsParameter.ActualName = BoundsParameter.Name;
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[3150] | 341 | }
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| 342 | foreach (IRealVectorManipulator op in Operators.OfType<IRealVectorManipulator>()) {
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| 343 | op.RealVectorParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
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[3182] | 344 | op.BoundsParameter.ActualName = BoundsParameter.Name;
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[3150] | 345 | }
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[3187] | 346 | foreach (IRealVectorMoveOperator op in Operators.OfType<IRealVectorMoveOperator>()) {
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| 347 | op.RealVectorParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
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[3150] | 348 | }
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[3187] | 349 | foreach (IRealVectorMoveGenerator op in Operators.OfType<IRealVectorMoveGenerator>()) {
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| 350 | op.BoundsParameter.ActualName = BoundsParameter.Name;
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| 351 | }
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| 352 | foreach (ISingleObjectiveTestFunctionAdditiveMoveEvaluator op in Operators.OfType<ISingleObjectiveTestFunctionAdditiveMoveEvaluator>()) {
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| 353 | op.QualityParameter.ActualName = Evaluator.QualityParameter.ActualName;
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| 354 | op.RealVectorParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
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| 355 | }
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[3682] | 356 | foreach (IRealVectorPSOEncoder op in Operators.OfType<IRealVectorPSOEncoder>()) {
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| 357 | ((ILookupParameter)op.OriginalRealVectorParameter).ActualName = SolutionCreator.RealVectorParameter.ActualName;
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| 358 | }
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[3150] | 359 | }
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| 360 | #endregion
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| 361 | }
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| 362 | }
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