[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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| 35 |
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| 36 | namespace HeuristicLab.Problems.TestFunctions.SingleObjective {
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| 37 | [Item("SingleObjective TestFunction", "Test function with real valued inputs and a single objective.")]
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| 38 | [StorableClass]
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| 39 | [Creatable("Problems")]
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| 40 | public sealed class SingleObjectiveTestFunction : ParameterizedNamedItem, ISingleObjectiveProblem {
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| 41 | public override Image ItemImage {
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| 42 | get { return HeuristicLab.Common.Resources.VS2008ImageLibrary.Type; }
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| 43 | }
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| 44 |
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| 45 | #region Parameter Properties
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| 46 | public ValueParameter<BoolValue> MaximizationParameter {
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| 47 | get { return (ValueParameter<BoolValue>)Parameters["Maximization"]; }
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| 48 | }
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| 49 | IParameter ISingleObjectiveProblem.MaximizationParameter {
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| 50 | get { return MaximizationParameter; }
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| 51 | }
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| 52 | public ValueParameter<DoubleMatrix> BoundsParameter {
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| 53 | get { return (ValueParameter<DoubleMatrix>)Parameters["Bounds"]; }
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| 54 | }
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| 55 | public ValueParameter<IntValue> ProblemSizeParameter {
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| 56 | get { return (ValueParameter<IntValue>)Parameters["ProblemSize"]; }
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| 57 | }
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| 58 | public ValueParameter<IRealVectorCreator> SolutionCreatorParameter {
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| 59 | get { return (ValueParameter<IRealVectorCreator>)Parameters["SolutionCreator"]; }
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| 60 | }
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| 61 | IParameter IProblem.SolutionCreatorParameter {
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| 62 | get { return SolutionCreatorParameter; }
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| 63 | }
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| 64 | public ValueParameter<ISingleObjectiveTestFunctionEvaluator> EvaluatorParameter {
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| 65 | get { return (ValueParameter<ISingleObjectiveTestFunctionEvaluator>)Parameters["Evaluator"]; }
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| 66 | }
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| 67 | IParameter IProblem.EvaluatorParameter {
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| 68 | get { return EvaluatorParameter; }
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| 69 | }
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| 70 | public OptionalValueParameter<ISingleObjectiveTestFunctionSolutionsVisualizer> VisualizerParameter {
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| 71 | get { return (OptionalValueParameter<ISingleObjectiveTestFunctionSolutionsVisualizer>)Parameters["Visualizer"]; }
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| 72 | }
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| 73 | IParameter IProblem.VisualizerParameter {
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| 74 | get { return VisualizerParameter; }
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| 75 | }
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| 76 | public OptionalValueParameter<DoubleValue> BestKnownQualityParameter {
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| 77 | get { return (OptionalValueParameter<DoubleValue>)Parameters["BestKnownQuality"]; }
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| 78 | }
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| 79 | IParameter ISingleObjectiveProblem.BestKnownQualityParameter {
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| 80 | get { return BestKnownQualityParameter; }
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| 81 | }
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| 82 | #endregion
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| 83 |
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| 84 | #region Properties
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[3154] | 85 | public BoolValue Maximization {
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| 86 | get { return MaximizationParameter.Value; }
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| 87 | set { MaximizationParameter.Value = value; }
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| 88 | }
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[3150] | 89 | public DoubleMatrix Bounds {
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| 90 | get { return BoundsParameter.Value; }
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| 91 | set { BoundsParameter.Value = value; }
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| 92 | }
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| 93 | public IntValue ProblemSize {
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| 94 | get { return ProblemSizeParameter.Value; }
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| 95 | set { ProblemSizeParameter.Value = value; }
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| 96 | }
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| 97 | public IRealVectorCreator SolutionCreator {
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| 98 | get { return SolutionCreatorParameter.Value; }
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| 99 | set { SolutionCreatorParameter.Value = value; }
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| 100 | }
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| 101 | ISolutionCreator IProblem.SolutionCreator {
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| 102 | get { return SolutionCreatorParameter.Value; }
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| 103 | }
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| 104 | public ISingleObjectiveTestFunctionEvaluator Evaluator {
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| 105 | get { return EvaluatorParameter.Value; }
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| 106 | set { EvaluatorParameter.Value = value; }
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| 107 | }
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| 108 | ISingleObjectiveEvaluator ISingleObjectiveProblem.Evaluator {
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| 109 | get { return EvaluatorParameter.Value; }
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| 110 | }
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| 111 | IEvaluator IProblem.Evaluator {
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| 112 | get { return EvaluatorParameter.Value; }
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| 113 | }
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| 114 | public ISingleObjectiveTestFunctionSolutionsVisualizer Visualizer {
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| 115 | get { return VisualizerParameter.Value; }
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| 116 | set { VisualizerParameter.Value = value; }
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| 117 | }
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| 118 | ISolutionsVisualizer IProblem.Visualizer {
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| 119 | get { return VisualizerParameter.Value; }
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| 120 | }
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| 121 | public DoubleValue BestKnownQuality {
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| 122 | get { return BestKnownQualityParameter.Value; }
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| 123 | set { BestKnownQualityParameter.Value = value; }
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| 124 | }
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| 125 | private List<IRealVectorOperator> operators;
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| 126 | public IEnumerable<IOperator> Operators {
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| 127 | get { return operators.Cast<IOperator>(); }
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| 128 | }
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| 129 | #endregion
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| 130 |
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| 131 | [StorableConstructor]
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| 132 | private SingleObjectiveTestFunction(bool deserializing) : base() { }
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| 133 | public SingleObjectiveTestFunction()
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| 134 | : base() {
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| 135 | UniformRandomRealVectorCreator creator = new UniformRandomRealVectorCreator();
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| 136 | AckleyEvaluator evaluator = new AckleyEvaluator();
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| 137 |
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| 138 | Parameters.Add(new ValueParameter<BoolValue>("Maximization", "Set to false as most test functions are minimization problems.", new BoolValue(evaluator.Maximization)));
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| 139 | Parameters.Add(new ValueParameter<DoubleMatrix>("Bounds", "The lower and upper bounds in each dimension.", evaluator.Bounds));
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| 140 | Parameters.Add(new ValueParameter<IntValue>("ProblemSize", "The dimension of the problem.", new IntValue(2)));
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| 141 | Parameters.Add(new ValueParameter<IRealVectorCreator>("SolutionCreator", "The operator which should be used to create new TSP solutions.", creator));
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| 142 | Parameters.Add(new ValueParameter<ISingleObjectiveTestFunctionEvaluator>("Evaluator", "The operator which should be used to evaluate TSP solutions.", evaluator));
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| 143 | Parameters.Add(new OptionalValueParameter<ISingleObjectiveTestFunctionSolutionsVisualizer>("Visualizer", "The operator which should be used to visualize TSP solutions."));
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| 144 | Parameters.Add(new OptionalValueParameter<DoubleValue>("BestKnownQuality", "The quality of the best known solution of this TSP instance.", new DoubleValue(evaluator.BestKnownQuality)));
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| 145 |
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| 146 | creator.RealVectorParameter.ActualName = "Point";
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| 147 | ParameterizeSolutionCreator();
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| 148 | ParameterizeEvaluator();
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| 149 | ParameterizeVisualizer();
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| 150 |
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| 151 | Initialize();
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| 152 | }
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| 153 |
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| 154 | public override IDeepCloneable Clone(Cloner cloner) {
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| 155 | SingleObjectiveTestFunction clone = (SingleObjectiveTestFunction)base.Clone(cloner);
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| 156 | clone.Initialize();
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| 157 | return clone;
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| 158 | }
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| 159 |
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| 160 | #region Events
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| 161 | public event EventHandler SolutionCreatorChanged;
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| 162 | private void OnSolutionCreatorChanged() {
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| 163 | if (SolutionCreatorChanged != null)
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| 164 | SolutionCreatorChanged(this, EventArgs.Empty);
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| 165 | }
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| 166 | public event EventHandler EvaluatorChanged;
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| 167 | private void OnEvaluatorChanged() {
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| 168 | if (EvaluatorChanged != null)
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| 169 | EvaluatorChanged(this, EventArgs.Empty);
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| 170 | }
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| 171 | public event EventHandler VisualizerChanged;
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| 172 | private void OnVisualizerChanged() {
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| 173 | if (VisualizerChanged != null)
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| 174 | VisualizerChanged(this, EventArgs.Empty);
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| 175 | }
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| 176 | public event EventHandler OperatorsChanged;
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| 177 | private void OnOperatorsChanged() {
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| 178 | if (OperatorsChanged != null)
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| 179 | OperatorsChanged(this, EventArgs.Empty);
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| 180 | }
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| 181 | private void ProblemSizeParameter_ValueChanged(object sender, EventArgs e) {
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| 182 | ProblemSize.ValueChanged += new EventHandler(ProblemSize_ValueChanged);
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| 183 | ProblemSize_ValueChanged(null, EventArgs.Empty);
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| 184 | }
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| 185 | private void ProblemSize_ValueChanged(object sender, EventArgs e) {
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| 186 | ParameterizeSolutionCreator();
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| 187 | }
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| 188 | private void SolutionCreatorParameter_ValueChanged(object sender, EventArgs e) {
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| 189 | ParameterizeSolutionCreator();
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| 190 | SolutionCreator_RealVectorParameter_ActualNameChanged(null, EventArgs.Empty);
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| 191 | }
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| 192 | private void SolutionCreator_RealVectorParameter_ActualNameChanged(object sender, EventArgs e) {
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| 193 | ParameterizeEvaluator();
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| 194 | ParameterizeOperators();
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| 195 | ParameterizeVisualizer();
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| 196 | }
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| 197 | private void EvaluatorParameter_ValueChanged(object sender, EventArgs e) {
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| 198 | ParameterizeEvaluator();
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[3154] | 199 | Maximization.Value = Evaluator.Maximization;
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| 200 | BoundsParameter.Value = Evaluator.Bounds;
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| 201 | if (ProblemSize.Value < Evaluator.MinimumProblemSize)
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| 202 | ProblemSize.Value = Evaluator.MinimumProblemSize;
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| 203 | else if (ProblemSize.Value > Evaluator.MaximumProblemSize)
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| 204 | ProblemSize.Value = Evaluator.MaximumProblemSize;
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| 205 | BestKnownQuality = new DoubleValue(Evaluator.BestKnownQuality);
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[3150] | 206 | Evaluator_QualityParameter_ActualNameChanged(null, EventArgs.Empty);
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| 207 | }
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| 208 | private void Evaluator_QualityParameter_ActualNameChanged(object sender, EventArgs e) {
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| 209 | ParameterizeOperators();
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| 210 | }
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| 211 | private void VisualizerParameter_ValueChanged(object sender, EventArgs e) {
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| 212 | ParameterizeVisualizer();
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| 213 | }
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[3154] | 214 | private void BoundsParameter_ValueChanged(object sender, EventArgs e) {
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| 215 | Bounds.ToStringChanged += new EventHandler(Bounds_ToStringChanged);
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| 216 | Bounds_ToStringChanged(null, EventArgs.Empty);
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| 217 | }
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| 218 | private void Bounds_ToStringChanged(object sender, EventArgs e) {
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| 219 | if (Bounds.Columns != 2 || Bounds.Rows < 1)
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| 220 | Bounds = new DoubleMatrix(1, 2);
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| 221 | }
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| 222 | private void Bounds_ItemChanged(object sender, EventArgs<int, int> e) {
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| 223 | if (e.Value2 == 0 && Bounds[e.Value, 1] <= Bounds[e.Value, 0])
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| 224 | Bounds[e.Value, 1] = Bounds[e.Value, 0] + 0.1;
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| 225 | if (e.Value2 == 1 && Bounds[e.Value, 0] >= Bounds[e.Value, 1])
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| 226 | Bounds[e.Value, 0] = Bounds[e.Value, 1] - 0.1;
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| 227 | }
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[3150] | 228 | #endregion
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| 229 |
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| 230 | #region Helpers
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| 231 | [StorableHook(HookType.AfterDeserialization)]
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| 232 | private void Initialize() {
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| 233 | InitializeOperators();
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| 234 | ProblemSizeParameter.ValueChanged += new EventHandler(ProblemSizeParameter_ValueChanged);
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| 235 | ProblemSize.ValueChanged += new EventHandler(ProblemSize_ValueChanged);
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[3154] | 236 | BoundsParameter.ValueChanged += new EventHandler(BoundsParameter_ValueChanged);
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| 237 | Bounds.ToStringChanged += new EventHandler(Bounds_ToStringChanged);
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| 238 | Bounds.ItemChanged += new EventHandler<EventArgs<int, int>>(Bounds_ItemChanged);
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[3150] | 239 | SolutionCreatorParameter.ValueChanged += new EventHandler(SolutionCreatorParameter_ValueChanged);
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| 240 | SolutionCreator.RealVectorParameter.ActualNameChanged += new EventHandler(SolutionCreator_RealVectorParameter_ActualNameChanged);
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| 241 | EvaluatorParameter.ValueChanged += new EventHandler(EvaluatorParameter_ValueChanged);
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| 242 | Evaluator.QualityParameter.ActualNameChanged += new EventHandler(Evaluator_QualityParameter_ActualNameChanged);
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| 243 | VisualizerParameter.ValueChanged += new EventHandler(VisualizerParameter_ValueChanged);
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| 244 | }
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| 245 |
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| 246 | private void InitializeOperators() {
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| 247 | operators = new List<IRealVectorOperator>();
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| 248 | if (ApplicationManager.Manager != null) {
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| 249 | operators.AddRange(ApplicationManager.Manager.GetInstances<IRealVectorOperator>());
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| 250 | ParameterizeOperators();
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| 251 | }
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| 252 | //InitializeMoveGenerators();
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| 253 | }
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| 254 | /*private void InitializeMoveGenerators() {
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| 255 | foreach (ITwoOptPermutationMoveOperator op in Operators.OfType<ITwoOptPermutationMoveOperator>()) {
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| 256 | if (op is IMoveGenerator) {
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| 257 | op.TwoOptMoveParameter.ActualNameChanged += new EventHandler(MoveGenerator_TwoOptMoveParameter_ActualNameChanged);
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| 258 | }
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| 259 | }
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| 260 | foreach (IThreeOptPermutationMoveOperator op in Operators.OfType<IThreeOptPermutationMoveOperator>()) {
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| 261 | if (op is IMoveGenerator) {
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| 262 | op.ThreeOptMoveParameter.ActualNameChanged += new EventHandler(MoveGenerator_ThreeOptMoveParameter_ActualNameChanged);
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| 263 | }
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| 264 | }
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| 265 | }*/
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| 266 | private void ParameterizeSolutionCreator() {
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| 267 | SolutionCreator.LengthParameter.Value = new IntValue(ProblemSize.Value);
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| 268 | }
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| 269 | private void ParameterizeEvaluator() {
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| 270 | Evaluator.PointParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
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| 271 | }
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| 272 | private void ParameterizeVisualizer() {
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| 273 | if (Visualizer != null) {
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| 274 | Visualizer.QualityParameter.ActualName = Evaluator.QualityParameter.ActualName;
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| 275 | Visualizer.PointParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
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| 276 | }
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| 277 | }
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| 278 | private void ParameterizeOperators() {
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| 279 | foreach (IRealVectorCrossover op in Operators.OfType<IRealVectorCrossover>()) {
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| 280 | op.ParentsParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
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| 281 | op.ChildParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
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| 282 | }
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| 283 | foreach (IRealVectorManipulator op in Operators.OfType<IRealVectorManipulator>()) {
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| 284 | op.RealVectorParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
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| 285 | }
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| 286 | /*foreach (IPermutationMoveOperator op in Operators.OfType<IPermutationMoveOperator>()) {
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| 287 | op.PermutationParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
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| 288 | }
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| 289 | foreach (ITSPPathMoveEvaluator op in Operators.OfType<ITSPPathMoveEvaluator>()) {
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| 290 | op.CoordinatesParameter.ActualName = CoordinatesParameter.Name;
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| 291 | op.DistanceMatrixParameter.ActualName = DistanceMatrixParameter.Name;
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| 292 | op.UseDistanceMatrixParameter.ActualName = UseDistanceMatrixParameter.Name;
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| 293 | }*/
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| 294 | }
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| 295 | #endregion
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| 296 | }
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| 297 | }
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