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.Linq;
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25 | using System.Drawing;
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26 | using HeuristicLab.Common;
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27 | using HeuristicLab.Core;
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28 | using HeuristicLab.Data;
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29 | using HeuristicLab.Optimization;
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30 | using HeuristicLab.Parameters;
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31 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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32 | using HeuristicLab.PluginInfrastructure;
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33 | using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding;
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34 |
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35 | namespace HeuristicLab.Problems.ArtificialAnt {
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36 | [Item("ArtificialAntProblem", "Represents the Artificial Ant problem.")]
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37 | [Creatable("Problems")]
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38 | [StorableClass]
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39 | public sealed class ArtificialAntProblem : ParameterizedNamedItem, ISingleObjectiveProblem {
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40 | public override Image ItemImage {
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41 | get { return HeuristicLab.Common.Resources.VS2008ImageLibrary.Type; }
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42 | }
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43 |
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44 | #region Parameter Properties
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45 | public ValueParameter<BoolValue> MaximizationParameter {
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46 | get { return (ValueParameter<BoolValue>)Parameters["Maximization"]; }
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47 | }
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48 | IParameter ISingleObjectiveProblem.MaximizationParameter {
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49 | get { return MaximizationParameter; }
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50 | }
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51 | public ValueParameter<SymbolicExpressionTreeCreator> SolutionCreatorParameter {
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52 | get { return (ValueParameter<SymbolicExpressionTreeCreator>)Parameters["SolutionCreator"]; }
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53 | }
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54 | IParameter IProblem.SolutionCreatorParameter {
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55 | get { return SolutionCreatorParameter; }
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56 | }
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57 | public ValueParameter<Evaluator> EvaluatorParameter {
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58 | get { return (ValueParameter<Evaluator>)Parameters["Evaluator"]; }
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59 | }
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60 | IParameter IProblem.EvaluatorParameter {
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61 | get { return EvaluatorParameter; }
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62 | }
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63 | public ValueParameter<ISymbolicExpressionGrammar> ArtificialAntExpressionGrammarParameter {
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64 | get { return (ValueParameter<ISymbolicExpressionGrammar>)Parameters["ArtificialAntExpressionGrammar"]; }
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65 | }
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66 | public ValueParameter<IntValue> MaxExpressionLengthParameter {
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67 | get { return (ValueParameter<IntValue>)Parameters["MaxExpressionLength"]; }
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68 | }
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69 | public ValueParameter<IntValue> MaxExpressionDepthParameter {
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70 | get { return (ValueParameter<IntValue>)Parameters["MaxExpressionDepth"]; }
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71 | }
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72 |
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73 | public OptionalValueParameter<IAntTrailVisualizer> VisualizerParameter {
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74 | get { return (OptionalValueParameter<IAntTrailVisualizer>)Parameters["Visualizer"]; }
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75 | }
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76 | IParameter IProblem.VisualizerParameter {
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77 | get { return VisualizerParameter; }
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78 | }
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79 | public ValueParameter<DoubleValue> BestKnownQualityParameter {
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80 | get { return (ValueParameter<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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88 | public SymbolicExpressionTreeCreator SolutionCreator {
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89 | get { return SolutionCreatorParameter.Value; }
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90 | set { SolutionCreatorParameter.Value = value; }
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91 | }
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92 | ISolutionCreator IProblem.SolutionCreator {
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93 | get { return SolutionCreatorParameter.Value; }
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94 | }
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95 | public Evaluator Evaluator {
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96 | get { return EvaluatorParameter.Value; }
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97 | set { EvaluatorParameter.Value = value; }
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98 | }
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99 | ISingleObjectiveEvaluator ISingleObjectiveProblem.Evaluator {
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100 | get { return EvaluatorParameter.Value; }
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101 | }
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102 | IEvaluator IProblem.Evaluator {
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103 | get { return EvaluatorParameter.Value; }
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104 | }
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105 | public ISymbolicExpressionGrammar ArtificialAntExpressionGrammar {
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106 | get { return ArtificialAntExpressionGrammarParameter.Value; }
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107 | }
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108 | public IAntTrailVisualizer Visualizer {
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109 | get { return VisualizerParameter.Value; }
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110 | set { VisualizerParameter.Value = value; }
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111 | }
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112 | ISolutionsVisualizer IProblem.Visualizer {
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113 | get { return VisualizerParameter.Value; }
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114 | }
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115 | public DoubleValue BestKnownQuality {
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116 | get { return BestKnownQualityParameter.Value; }
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117 | }
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118 | private List<IOperator> operators;
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119 | public IEnumerable<IOperator> Operators {
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120 | get { return operators; }
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121 | }
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122 | #endregion
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123 |
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124 | public ArtificialAntProblem()
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125 | : base() {
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126 | SymbolicExpressionTreeCreator creator = new ProbabilisticTreeCreator();
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127 | Evaluator evaluator = new Evaluator();
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128 | ArtificialAntExpressionGrammar grammar = new ArtificialAntExpressionGrammar();
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129 | BestAntTrailVisualizer visualizer = new BestAntTrailVisualizer();
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130 |
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131 | Parameters.Add(new ValueParameter<BoolValue>("Maximization", "Set to true as the Artificial Ant Problem is a maximization problem.", new BoolValue(true)));
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132 | Parameters.Add(new ValueParameter<SymbolicExpressionTreeCreator>("SolutionCreator", "The operator which should be used to create new artificial ant solutions.", creator));
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133 | Parameters.Add(new ValueParameter<Evaluator>("Evaluator", "The operator which should be used to evaluate artificial ant solutions.", evaluator));
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134 | Parameters.Add(new ValueParameter<DoubleValue>("BestKnownQuality", "The quality of the best known solution of this OneMax instance.", new DoubleValue(89)));
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135 | Parameters.Add(new ValueParameter<ISymbolicExpressionGrammar>("ArtificialAntExpressionGrammar", "The grammar that should be used for artificial ant expressions.", grammar));
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136 | Parameters.Add(new ValueParameter<IntValue>("MaxExpressionLength", "Maximal length of the expression to control the artificial ant.", new IntValue(100)));
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137 | Parameters.Add(new ValueParameter<IntValue>("MaxExpressionDepth", "Maximal depth of the expression to control the artificial ant.", new IntValue(10)));
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138 | Parameters.Add(new ValueParameter<IAntTrailVisualizer>("Visualizer", "The operator which should be used to visualize artificial ant solutions.", visualizer));
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139 |
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140 | creator.SymbolicExpressionTreeParameter.ActualName = "AntTrailSolution";
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141 | evaluator.QualityParameter.ActualName = "FoodEaten";
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142 | ParameterizeSolutionCreator();
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143 | ParameterizeEvaluator();
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144 | ParameterizeVisualizer();
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145 |
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146 | Initialize();
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147 | }
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148 |
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149 | [StorableConstructor]
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150 | private ArtificialAntProblem(bool deserializing) : base() { }
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151 |
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152 | public override IDeepCloneable Clone(Cloner cloner) {
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153 | ArtificialAntProblem clone = (ArtificialAntProblem)base.Clone(cloner);
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154 | clone.Initialize();
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155 | return clone;
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156 | }
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157 |
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158 | #region Events
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159 | public event EventHandler SolutionCreatorChanged;
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160 | private void OnSolutionCreatorChanged() {
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161 | if (SolutionCreatorChanged != null)
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162 | SolutionCreatorChanged(this, EventArgs.Empty);
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163 | }
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164 | public event EventHandler EvaluatorChanged;
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165 | private void OnEvaluatorChanged() {
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166 | if (EvaluatorChanged != null)
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167 | EvaluatorChanged(this, EventArgs.Empty);
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168 | }
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169 | public event EventHandler VisualizerChanged;
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170 | private void OnVisualizerChanged() {
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171 | if (VisualizerChanged != null)
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172 | VisualizerChanged(this, EventArgs.Empty);
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173 | }
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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 |
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181 | private void SolutionCreatorParameter_ValueChanged(object sender, EventArgs e) {
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182 | SolutionCreator.SymbolicExpressionTreeParameter.ActualNameChanged += new EventHandler(SolutionCreator_SymbolicExpressionTreeParameter_ActualNameChanged);
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183 | ParameterizeSolutionCreator();
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184 | ParameterizeEvaluator();
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185 | ParameterizeOperators();
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186 | OnSolutionCreatorChanged();
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187 | }
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188 | private void SolutionCreator_SymbolicExpressionTreeParameter_ActualNameChanged(object sender, EventArgs e) {
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189 | ParameterizeEvaluator();
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190 | ParameterizeOperators();
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191 | }
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192 | private void EvaluatorParameter_ValueChanged(object sender, EventArgs e) {
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193 | ParameterizeEvaluator();
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194 | OnEvaluatorChanged();
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195 | }
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196 | #endregion
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197 |
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198 | #region Helpers
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199 | [StorableHook(HookType.AfterDeserialization)]
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200 | private void Initialize() {
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201 | InitializeOperators();
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202 | SolutionCreatorParameter.ValueChanged += new EventHandler(SolutionCreatorParameter_ValueChanged);
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203 | SolutionCreator.SymbolicExpressionTreeParameter.ActualNameChanged += new EventHandler(SolutionCreator_SymbolicExpressionTreeParameter_ActualNameChanged);
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204 | EvaluatorParameter.ValueChanged += new EventHandler(EvaluatorParameter_ValueChanged);
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205 | }
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206 | private void ParameterizeSolutionCreator() {
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207 | SolutionCreator.SymbolicExpressionGrammarParameter.ActualName = ArtificialAntExpressionGrammarParameter.Name;
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208 | }
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209 | private void ParameterizeEvaluator() {
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210 | Evaluator.SymbolicExpressionTreeParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
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211 | }
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212 | private void InitializeOperators() {
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213 | operators = new List<IOperator>();
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214 | operators.Add(Evaluator);
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215 | operators.Add(SolutionCreator);
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216 | operators.Add(new SubtreeCrossover());
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217 | ParameterizeOperators();
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218 | }
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219 |
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220 | private void ParameterizeOperators() {
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221 | foreach (ProbabilisticTreeCreator op in Operators.OfType<ProbabilisticTreeCreator>()) {
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222 | op.MaxTreeHeightParameter.ActualName = MaxExpressionDepthParameter.Name;
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223 | op.MaxTreeSizeParameter.ActualName = MaxExpressionLengthParameter.Name;
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224 | op.SymbolicExpressionGrammarParameter.ActualName = ArtificialAntExpressionGrammarParameter.Name;
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225 | }
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226 | foreach (Evaluator op in Operators.OfType<Evaluator>()) {
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227 | op.SymbolicExpressionTreeParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
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228 | }
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229 | foreach (SymbolicExpressionTreeCrossover op in Operators.OfType<SymbolicExpressionTreeCrossover>()) {
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230 | op.MaxTreeHeightParameter.ActualName = MaxExpressionDepthParameter.Name;
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231 | op.MaxTreeSizeParameter.ActualName = MaxExpressionLengthParameter.Name;
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232 | op.SymbolicExpressionGrammarParameter.ActualName = ArtificialAntExpressionGrammarParameter.Name;
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233 | op.ParentsParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
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234 | op.ChildParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
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235 | }
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236 | }
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237 | private void ParameterizeVisualizer() {
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238 | if (Visualizer != null) {
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239 | Visualizer.QualityParameter.ActualName = Evaluator.QualityParameter.ActualName;
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240 | if (Visualizer is IAntTrailVisualizer)
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241 | ((IAntTrailVisualizer)Visualizer).SymbolicExpressionTreeParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
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242 | }
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243 | }
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244 |
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245 | #endregion
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246 | }
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247 | }
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