1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2016 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.Drawing;
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24 | using System.Linq;
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25 | using HeuristicLab.Common;
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26 | using HeuristicLab.Core;
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27 | using HeuristicLab.Data;
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28 | using HeuristicLab.Encodings.PermutationEncoding;
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29 | using HeuristicLab.Parameters;
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30 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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31 | using HeuristicLab.PluginInfrastructure;
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32 | using HeuristicLab.Problems.Instances;
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33 | using HeuristicLab.Optimization;
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34 | using System.Collections.Generic;
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35 | using HeuristicLab.Problems.Instances.Types;
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36 |
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37 | namespace HeuristicLab.Problems.LinearOrdering
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38 | {
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39 | [Item("Linear Ordering Problem (LOP)", "Represents a Linear Ordering Problem")]
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40 | [Creatable(CreatableAttribute.Categories.CombinatorialProblems, Priority = 999)]
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41 | [StorableClass]
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42 | public sealed class LinearOrderingProblem : SingleObjectiveHeuristicOptimizationProblem<ILOPEvaluator, IPermutationCreator>, IProblemInstanceConsumer<LOPData>, IProblemInstanceExporter<LOPData>, IStorableContent
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43 | {
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44 | #region Default Instance
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45 | private static readonly LOPData DefaultInstance = new LOPData()
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46 | {
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47 | Name = "Linaer Ordering Problem (LOP)",
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48 | Description = "The default instance of the LOP in HeuristicLab",
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49 | Dimension = 4,
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50 | Matrix = new double[,] {
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51 | {0 ,3, 6 ,6},
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52 | {2 ,0, 8 ,4},
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53 | {4 ,2, 0 ,4},
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54 | {5 ,3, 8 ,0}
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55 | }
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56 | };
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57 | #endregion
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58 |
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59 | public string Filename { get; set; }
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60 |
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61 | #region Parameter Properties
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62 | public OptionalValueParameter<Permutation> BestKnownSolutionParameter {
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63 | get { return (OptionalValueParameter<Permutation>)Parameters["BestKnownSolution"]; }
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64 | }
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65 |
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66 | public OptionalValueParameter<DoubleMatrix> MatrixParameter {
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67 | get { return (OptionalValueParameter<DoubleMatrix>)Parameters["Matrix"]; }
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68 | }
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69 | #endregion
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70 |
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71 | #region Properties
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72 | public Permutation BestKnownSolution {
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73 | get { return BestKnownSolutionParameter.Value; }
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74 | set {
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75 | BestKnownSolutionParameter.Value = value;
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76 | if (BestKnownSolutionChanged != null) { OnBestKnownSolutionChanged(); }
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77 | }
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78 | }
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79 | public DoubleMatrix Matrix {
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80 | get { return MatrixParameter.Value; }
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81 | set { MatrixParameter.Value = value; }
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82 | }
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83 | #endregion
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84 |
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85 | public event EventHandler BestKnownSolutionChanged;
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86 | private void OnBestKnownSolutionChanged()
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87 | {
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88 | var changed = BestKnownSolutionChanged;
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89 | if (changed != null)
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90 | changed(this, EventArgs.Empty);
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91 | }
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92 |
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93 | // BackwardsCompatibility3.3
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94 | #region Backwards compatible code, remove with 3.4
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95 | [Obsolete]
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96 | [Storable(Name = "operators")]
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97 | private IEnumerable<IOperator> oldOperators {
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98 | get { return null; }
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99 | set {
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100 | if (value != null && value.Any())
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101 | Operators.AddRange(value);
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102 | }
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103 | }
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104 | #endregion
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105 |
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106 | [StorableConstructor]
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107 | private LinearOrderingProblem(bool deserializing) : base(deserializing) { }
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108 | private LinearOrderingProblem(LinearOrderingProblem original, Cloner cloner)
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109 | : base(original, cloner)
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110 | {
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111 | RegisterEventHandlers();
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112 | }
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113 | public LinearOrderingProblem()
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114 | : base(new AwesomeTriangulationEvaluator(), new RandomPermutationCreator())
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115 | {
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116 | Parameters.Add(new OptionalValueParameter<Permutation>("BestKnownSolution", "The best known solution of this LOP instance."));
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117 | Parameters.Add(new OptionalValueParameter<DoubleMatrix>("Matrix", "The matrix which contains the jobs,machines and duration."));
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118 |
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119 | Load(DefaultInstance);
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120 | EvaluatorParameter.GetsCollected = false;
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121 | EvaluatorParameter.Hidden = true;
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122 |
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123 | Maximization.Value = true;
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124 | MaximizationParameter.Hidden = true;
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125 |
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126 | SolutionCreator.PermutationParameter.ActualName = "PFSPOrder";
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127 | Evaluator.QualityParameter.ActualName = "Makespan";
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128 | ParameterizeSolutionCreator();
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129 | ParameterizeEvaluator();
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130 |
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131 | InitializeOperators();
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132 | RegisterEventHandlers();
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133 | }
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134 |
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135 | public override IDeepCloneable Clone(Cloner cloner)
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136 | {
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137 | return new LinearOrderingProblem(this, cloner);
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138 | }
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139 |
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140 | [StorableHook(HookType.AfterDeserialization)]
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141 | private void AfterDeserialization()
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142 | {
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143 | RegisterEventHandlers();
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144 | }
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145 |
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146 | private void RegisterEventHandlers()
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147 | {
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148 | SolutionCreator.PermutationParameter.ActualNameChanged += new EventHandler(SolutionCreator_PermutationParameter_ActualNameChanged);
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149 | Evaluator.QualityParameter.ActualNameChanged += new EventHandler(Evaluator_QualityParameter_ActualNameChanged);
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150 | }
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151 |
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152 | private void Evaluator_QualityParameter_ActualNameChanged(object sender, EventArgs e)
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153 | {
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154 | //Nothing to do ParameterizeAnalyzers();
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155 | }
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156 |
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157 | private void SolutionCreator_PermutationParameter_ActualNameChanged(object sender, EventArgs e)
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158 | {
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159 | ParameterizeEvaluator();
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160 | //ParameterizeAnalyzers();
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161 | ParameterizeOperators();
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162 | }
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163 |
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164 | #region Events
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165 | private void ScheduleEvaluator_QualityParameter_ActualNameChanged(object sender, EventArgs eventArgs)
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166 | {
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167 | ParameterizeOperators();
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168 | }
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169 |
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170 | private void SolutionCreator_SchedulingEncodingParameter_ActualNameChanged(object sender, EventArgs eventArgs)
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171 | {
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172 | ParameterizeOperators();
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173 | }
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174 |
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175 | private void ScheduleDecoder_ScheduleParameter_ActualNameChanged(object sender, EventArgs eventArgs)
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176 | {
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177 | ParameterizeOperators();
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178 | }
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179 | #endregion
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180 |
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181 | #region Problem Instance Handling
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182 | public void Load(LOPData data)
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183 | {
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184 | BestKnownQuality = data.BestKnownQuality.HasValue ? new DoubleValue(data.BestKnownQuality.Value) : null;
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185 | Name = data.Name;
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186 | Description = data.Description;
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187 | Matrix = new DoubleMatrix(data.Matrix);
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188 |
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189 | if (data.BestKnownPermutation != null)
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190 | {
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191 | int[] permut = data.BestKnownPermutation;
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192 | //Clean up if the first index = 1
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193 | if (!permut.Contains(0)) { permut = permut.Select(v => v - 1).ToArray(); }
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194 | double bestKnownQuality = MatrixTriangulationEvaluator.Apply(
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195 | new AwesomeTriangulationEvaluator(),
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196 | new DoubleMatrix(data.Matrix),
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197 | new Permutation(PermutationTypes.Absolute, permut)
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198 | );
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199 |
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200 | BestKnownSolution = new Permutation(PermutationTypes.Absolute, data.BestKnownPermutation);
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201 | BestKnownQuality = new DoubleValue(bestKnownQuality);
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202 | }
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203 |
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204 | ParameterizeSolutionCreator();
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205 | }
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206 |
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207 | public LOPData Export()
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208 | {
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209 | var result = new LOPData
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210 | {
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211 | Name = Name,
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212 | Description = Description,
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213 | BestKnownQuality = BestKnownQuality.Value,
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214 | //BestKnownPermutation = Matrix.row,
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215 | //Machines = Matrix.Columns
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216 | };
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217 | for (int i = 0; i < Matrix.Rows; i++)
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218 | {
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219 | for (int j = 0; j < Matrix.Columns; j++)
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220 | {
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221 | //result.ProcessingTimes[i, j] = Matrix[i, j];
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222 | }
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223 | }
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224 |
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225 | return result;
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226 | }
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227 | #endregion
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228 |
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229 | #region Helpers
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230 | private void InitializeOperators()
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231 | {
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232 | var operators = new HashSet<IPermutationOperator>(new IPermutationOperator[] {
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233 | new OrderCrossover2(),
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234 | new InversionManipulator(),
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235 | new StochasticInversionMultiMoveGenerator()
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236 | }, new TypeEqualityComparer<IPermutationOperator>());
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237 |
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238 | foreach (var op in ApplicationManager.Manager.GetInstances<IPermutationOperator>())
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239 | operators.Add(op);
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240 | Operators.AddRange(operators);
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241 | ParameterizeOperators();
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242 | UpdateMoveEvaluators();
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243 | }
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244 |
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245 |
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246 | private void ParameterizeOperators()
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247 | {
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248 | foreach (IPermutationCrossover op in Operators.OfType<IPermutationCrossover>())
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249 | {
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250 | op.ParentsParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
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251 | op.ParentsParameter.Hidden = true;
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252 | op.ChildParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
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253 | op.ChildParameter.Hidden = true;
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254 | }
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255 | foreach (IPermutationManipulator op in Operators.OfType<IPermutationManipulator>())
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256 | {
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257 | op.PermutationParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
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258 | op.PermutationParameter.Hidden = true;
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259 | }
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260 | foreach (IPermutationMoveOperator op in Operators.OfType<IPermutationMoveOperator>())
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261 | {
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262 | op.PermutationParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
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263 | op.PermutationParameter.Hidden = true;
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264 | }
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265 | foreach (IPermutationMultiNeighborhoodShakingOperator op in Operators.OfType<IPermutationMultiNeighborhoodShakingOperator>())
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266 | {
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267 | op.PermutationParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
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268 | op.PermutationParameter.Hidden = true;
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269 | }
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270 | foreach (ISingleObjectiveImprovementOperator op in Operators.OfType<ISingleObjectiveImprovementOperator>())
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271 | {
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272 | op.SolutionParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
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273 | op.SolutionParameter.Hidden = true;
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274 | }
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275 | foreach (ISingleObjectivePathRelinker op in Operators.OfType<ISingleObjectivePathRelinker>())
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276 | {
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277 | op.ParentsParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
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278 | op.ParentsParameter.Hidden = true;
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279 | }
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280 | foreach (ISolutionSimilarityCalculator op in Operators.OfType<ISolutionSimilarityCalculator>())
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281 | {
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282 | op.SolutionVariableName = SolutionCreator.PermutationParameter.ActualName;
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283 | op.QualityVariableName = Evaluator.QualityParameter.ActualName;
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284 | }
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285 | }
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286 | #endregion
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287 |
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288 | private void UpdateMoveEvaluators()
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289 | {
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290 | ParameterizeOperators();
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291 | OnOperatorsChanged();
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292 | }
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293 |
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294 | private void ParameterizeSolutionCreator()
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295 | {
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296 | SolutionCreator.LengthParameter.Value = new IntValue(Matrix.Columns); //Jobs
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297 |
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298 | SolutionCreator.LengthParameter.Hidden = SolutionCreator.LengthParameter.Value != null;
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299 | SolutionCreator.PermutationTypeParameter.Value = new PermutationType(PermutationTypes.RelativeUndirected);
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300 | SolutionCreator.PermutationTypeParameter.Hidden = true;
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301 | }
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302 | private void ParameterizeEvaluator()
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303 | {
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304 | if (Evaluator is AwesomeTriangulationEvaluator)
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305 | {
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306 | IMatrixTriangulationEvaluator evaluator = (IMatrixTriangulationEvaluator)Evaluator;
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307 | evaluator.PermutationParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
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308 | evaluator.PermutationParameter.Hidden = true;
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309 | }
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310 | }
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311 | }
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312 | }
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