[6650] | 1 | #region License Information
|
---|
| 2 | /* HeuristicLab
|
---|
| 3 | * Copyright (C) 2002-2011 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
|
---|
| 4 | *
|
---|
| 5 | * This file is part of HeuristicLab.
|
---|
| 6 | *
|
---|
| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
|
---|
| 8 | * it under the terms of the GNU General Public License as published by
|
---|
| 9 | * the Free Software Foundation, either version 3 of the License, or
|
---|
| 10 | * (at your option) any later version.
|
---|
| 11 | *
|
---|
| 12 | * HeuristicLab is distributed in the hope that it will be useful,
|
---|
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
---|
| 15 | * GNU General Public License for more details.
|
---|
| 16 | *
|
---|
| 17 | * You should have received a copy of the GNU General Public License
|
---|
| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
|
---|
| 19 | */
|
---|
| 20 | #endregion
|
---|
| 21 |
|
---|
| 22 | using System.Drawing;
|
---|
[6657] | 23 | using System.Linq;
|
---|
[6650] | 24 | using HeuristicLab.Common;
|
---|
| 25 | using HeuristicLab.Core;
|
---|
| 26 | using HeuristicLab.Data;
|
---|
| 27 | using HeuristicLab.Encodings.IntegerVectorEncoding;
|
---|
| 28 | using HeuristicLab.Optimization;
|
---|
| 29 | using HeuristicLab.Parameters;
|
---|
| 30 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
|
---|
[6657] | 31 | using HeuristicLab.PluginInfrastructure;
|
---|
[6650] | 32 |
|
---|
| 33 | namespace HeuristicLab.Problems.GeneralizedQuadraticAssignment {
|
---|
[6651] | 34 | [Item("Generalized Quadratic Assignment Problem", "The Generalized Quadratic Assignment Problem (GQAP) is a generalization of the QAP in that it allows to assign multiple facilities (here called equipment) to a single location. The problem is described in Lee, C.G., and Ma, Z. 2003. The Generalized Quadratic Assignment Problem. Technical Report M5S 3G8, University of Toronto, Canada.")]
|
---|
[6650] | 35 | [Creatable("Problems")]
|
---|
| 36 | [StorableClass]
|
---|
| 37 | public sealed class GeneralizedQuadraticAssignmentProblem : SingleObjectiveHeuristicOptimizationProblem<IGQAPEvaluator, IIntegerVectorCreator> {
|
---|
| 38 | public override Image ItemImage {
|
---|
| 39 | get { return HeuristicLab.Common.Resources.VSImageLibrary.Type; }
|
---|
| 40 | }
|
---|
| 41 |
|
---|
| 42 | #region Parameter Properties
|
---|
| 43 | public ValueParameter<DoubleMatrix> WeightsParameter {
|
---|
| 44 | get { return (ValueParameter<DoubleMatrix>)Parameters["Weights"]; }
|
---|
| 45 | }
|
---|
| 46 | public ValueParameter<DoubleMatrix> DistancesParameter {
|
---|
| 47 | get { return (ValueParameter<DoubleMatrix>)Parameters["Distances"]; }
|
---|
| 48 | }
|
---|
| 49 | public ValueParameter<DoubleMatrix> InstallationCostsParameter {
|
---|
| 50 | get { return (ValueParameter<DoubleMatrix>)Parameters["InstallationCosts"]; }
|
---|
| 51 | }
|
---|
| 52 | public FixedValueParameter<DoubleValue> TransportationCostsParameter {
|
---|
| 53 | get { return (FixedValueParameter<DoubleValue>)Parameters["TransportationCosts"]; }
|
---|
| 54 | }
|
---|
| 55 | public ValueParameter<DoubleArray> DemandsParameter {
|
---|
| 56 | get { return (ValueParameter<DoubleArray>)Parameters["Demands"]; }
|
---|
| 57 | }
|
---|
| 58 | public ValueParameter<DoubleArray> CapacitiesParameter {
|
---|
| 59 | get { return (ValueParameter<DoubleArray>)Parameters["Capacities"]; }
|
---|
| 60 | }
|
---|
| 61 | public OptionalValueParameter<IItem> BestKnownSolutionParameter {
|
---|
| 62 | get { return (OptionalValueParameter<IItem>)Parameters["BestKnownSolution"]; }
|
---|
| 63 | }
|
---|
| 64 |
|
---|
| 65 | #endregion
|
---|
| 66 |
|
---|
| 67 | #region Properties
|
---|
| 68 | public DoubleMatrix Weights {
|
---|
| 69 | get { return WeightsParameter.Value; }
|
---|
| 70 | set { WeightsParameter.Value = value; }
|
---|
| 71 | }
|
---|
| 72 | public DoubleMatrix Distances {
|
---|
| 73 | get { return DistancesParameter.Value; }
|
---|
| 74 | set { DistancesParameter.Value = value; }
|
---|
| 75 | }
|
---|
| 76 | public DoubleMatrix InstallationCosts {
|
---|
| 77 | get { return InstallationCostsParameter.Value; }
|
---|
| 78 | set { InstallationCostsParameter.Value = value; }
|
---|
| 79 | }
|
---|
[6651] | 80 | public DoubleValue TransportationCosts {
|
---|
| 81 | get { return TransportationCostsParameter.Value; }
|
---|
| 82 | set { TransportationCostsParameter.Value = value; }
|
---|
| 83 | }
|
---|
[6650] | 84 | public DoubleArray Demands {
|
---|
| 85 | get { return DemandsParameter.Value; }
|
---|
| 86 | set { DemandsParameter.Value = value; }
|
---|
| 87 | }
|
---|
| 88 | public DoubleArray Capacities {
|
---|
| 89 | get { return CapacitiesParameter.Value; }
|
---|
| 90 | set { CapacitiesParameter.Value = value; }
|
---|
| 91 | }
|
---|
| 92 |
|
---|
| 93 | #endregion
|
---|
| 94 |
|
---|
[6657] | 95 | [Storable]
|
---|
| 96 | private BestGQAPSolutionAnalyzer bestSolutionAnalyzer;
|
---|
| 97 | public BestGQAPSolutionAnalyzer BestSolutionAnalyzer {
|
---|
| 98 | get { return bestSolutionAnalyzer; }
|
---|
| 99 | set { bestSolutionAnalyzer = value; }
|
---|
| 100 | }
|
---|
| 101 |
|
---|
[6650] | 102 | [StorableConstructor]
|
---|
| 103 | private GeneralizedQuadraticAssignmentProblem(bool deserializing) : base(deserializing) { }
|
---|
| 104 | private GeneralizedQuadraticAssignmentProblem(GeneralizedQuadraticAssignmentProblem original, Cloner cloner)
|
---|
| 105 | : base(original, cloner) {
|
---|
[6657] | 106 | bestSolutionAnalyzer = cloner.Clone(original.bestSolutionAnalyzer);
|
---|
[6650] | 107 | AttachEventHandlers();
|
---|
| 108 | }
|
---|
| 109 | public GeneralizedQuadraticAssignmentProblem()
|
---|
| 110 | : base(new GQAPEvaluator(), new UniformRandomIntegerVectorCreator()) {
|
---|
| 111 | Parameters.Add(new ValueParameter<DoubleMatrix>("Weights", "The weights matrix describes the flows between the equipments.", new DoubleMatrix()));
|
---|
| 112 | Parameters.Add(new ValueParameter<DoubleMatrix>("Distances", "The distances matrix describes the distances between the locations at which the equipment can be installed.", new DoubleMatrix()));
|
---|
| 113 | Parameters.Add(new ValueParameter<DoubleMatrix>("InstallationCosts", "The installation costs matrix describes the installation costs of installing equipment i at location j", new DoubleMatrix()));
|
---|
| 114 | Parameters.Add(new FixedValueParameter<DoubleValue>("TransportationCosts", "The transportation cost represents the flow-unit per distance-unit cost factor. This value can also be set to 1 if these costs are factored into the weights matrix already.", new DoubleValue(1)));
|
---|
| 115 | Parameters.Add(new ValueParameter<DoubleArray>("Demands", "The demands vector describes the space requirements of the equipments.", new DoubleArray()));
|
---|
| 116 | Parameters.Add(new ValueParameter<DoubleArray>("Capacities", "The capacities vector describes the available space at the locations.", new DoubleArray()));
|
---|
| 117 | Parameters.Add(new OptionalValueParameter<IItem>("BestKnownSolution", "The best known solution (if available)", null));
|
---|
| 118 |
|
---|
[6657] | 119 | Weights = new DoubleMatrix(5, 5);
|
---|
| 120 | Weights[0, 0] = Weights[1, 1] = Weights[2, 2] = Weights[3, 3] = Weights[4, 4] = 0;
|
---|
| 121 | Weights[0, 1] = Weights[1, 0] = Weights[0, 2] = Weights[2, 0] = Weights[0, 3] = Weights[3, 0] = Weights[0, 4] = Weights[4, 0] = 10;
|
---|
| 122 | Weights[1, 2] = Weights[2, 1] = Weights[1, 3] = Weights[3, 1] = Weights[1, 4] = Weights[4, 1] = 5;
|
---|
| 123 | Weights[2, 3] = Weights[3, 2] = Weights[2, 4] = Weights[4, 2] = 7.5;
|
---|
| 124 | Weights[3, 4] = Weights[4, 3] = 2.5;
|
---|
[6650] | 125 |
|
---|
[6657] | 126 | Distances = new DoubleMatrix(3, 3);
|
---|
| 127 | Distances[0, 0] = Distances[1, 1] = Distances[2, 2] = 0;
|
---|
| 128 | Distances[0, 1] = Distances[1, 0] = Distances[1, 2] = Distances[2, 1] = 1;
|
---|
| 129 | Distances[0, 2] = Distances[2, 0] = 2;
|
---|
| 130 |
|
---|
| 131 | InstallationCosts = new DoubleMatrix(3, 3);
|
---|
| 132 |
|
---|
| 133 | TransportationCosts = new DoubleValue(1);
|
---|
| 134 |
|
---|
| 135 | Demands = new DoubleArray(5);
|
---|
| 136 | Demands[0] = 2; Demands[1] = 1; Demands[2] = 3; Demands[3] = 1; Demands[4] = 1;
|
---|
| 137 |
|
---|
| 138 | Capacities = new DoubleArray(3);
|
---|
| 139 | Capacities[0] = 4; Capacities[1] = 1; Capacities[2] = 4;
|
---|
| 140 |
|
---|
[6650] | 141 | ParameterizeSolutionCreator();
|
---|
| 142 | ParameterizeEvaluator();
|
---|
| 143 |
|
---|
| 144 | InitializeOperators();
|
---|
| 145 | AttachEventHandlers();
|
---|
| 146 | }
|
---|
| 147 |
|
---|
| 148 | public override IDeepCloneable Clone(Cloner cloner) {
|
---|
| 149 | return new GeneralizedQuadraticAssignmentProblem(this, cloner);
|
---|
| 150 | }
|
---|
| 151 |
|
---|
| 152 | #region Events
|
---|
| 153 | // TODO: Add your event handlers here
|
---|
| 154 | #endregion
|
---|
| 155 |
|
---|
| 156 | #region Helpers
|
---|
| 157 | [StorableHook(HookType.AfterDeserialization)]
|
---|
| 158 | private void AfterDeserializationHook() {
|
---|
| 159 | AttachEventHandlers();
|
---|
| 160 | }
|
---|
| 161 |
|
---|
| 162 | private void AttachEventHandlers() {
|
---|
| 163 | // TODO: Add event handlers to the parameters here
|
---|
| 164 | }
|
---|
| 165 |
|
---|
| 166 | private void InitializeOperators() {
|
---|
[6657] | 167 | Operators.AddRange(ApplicationManager.Manager.GetInstances<IIntegerVectorOperator>());
|
---|
| 168 | Operators.RemoveAll(x => x is ISingleObjectiveMoveEvaluator);
|
---|
| 169 | Operators.Add(new BestGQAPSolutionAnalyzer());
|
---|
| 170 | ParameterizeAnalyzers();
|
---|
| 171 | ParameterizeOperators();
|
---|
[6650] | 172 | }
|
---|
[6657] | 173 | private void ParameterizeAnalyzers() {
|
---|
| 174 | if (BestSolutionAnalyzer != null) {
|
---|
| 175 | BestSolutionAnalyzer.QualityParameter.ActualName = Evaluator.QualityParameter.ActualName;
|
---|
| 176 | BestSolutionAnalyzer.DistancesParameter.ActualName = DistancesParameter.Name;
|
---|
| 177 | BestSolutionAnalyzer.WeightsParameter.ActualName = WeightsParameter.Name;
|
---|
| 178 | BestSolutionAnalyzer.AssignmentParameter.ActualName = SolutionCreator.IntegerVectorParameter.ActualName;
|
---|
| 179 | BestSolutionAnalyzer.ResultsParameter.ActualName = "Results";
|
---|
| 180 | BestSolutionAnalyzer.BestKnownQualityParameter.ActualName = BestKnownQualityParameter.Name;
|
---|
| 181 | BestSolutionAnalyzer.MaximizationParameter.ActualName = MaximizationParameter.Name;
|
---|
| 182 | }
|
---|
| 183 | }
|
---|
| 184 | private void ParameterizeOperators() {
|
---|
| 185 | foreach (IIntegerVectorCrossover op in Operators.OfType<IIntegerVectorCrossover>()) {
|
---|
| 186 | op.ParentsParameter.ActualName = SolutionCreator.IntegerVectorParameter.ActualName;
|
---|
| 187 | op.ChildParameter.ActualName = SolutionCreator.IntegerVectorParameter.ActualName;
|
---|
| 188 | }
|
---|
| 189 | foreach (IIntegerVectorManipulator op in Operators.OfType<IIntegerVectorManipulator>()) {
|
---|
| 190 | op.IntegerVectorParameter.ActualName = SolutionCreator.IntegerVectorParameter.ActualName;
|
---|
| 191 | }
|
---|
| 192 | }
|
---|
[6650] | 193 | private void ParameterizeSolutionCreator() {
|
---|
[6657] | 194 | SolutionCreator.LengthParameter.Value = new IntValue(Demands.Length);
|
---|
| 195 | SolutionCreator.MinimumParameter.Value = new IntValue(0);
|
---|
| 196 | SolutionCreator.MaximumParameter.Value = new IntValue(Capacities.Length);
|
---|
| 197 | SolutionCreator.IntegerVectorParameter.ActualName = "Assignment";
|
---|
[6650] | 198 | }
|
---|
| 199 | private void ParameterizeEvaluator() {
|
---|
[6657] | 200 | Evaluator.WeightsParameter.ActualName = WeightsParameter.Name;
|
---|
| 201 | Evaluator.DistancesParameter.ActualName = DistancesParameter.Name;
|
---|
| 202 | Evaluator.InstallationCostsParameter.ActualName = InstallationCostsParameter.Name;
|
---|
| 203 | Evaluator.TransportationCostsParameter.ActualName = TransportationCostsParameter.Name;
|
---|
| 204 | Evaluator.DemandsParameter.ActualName = DemandsParameter.Name;
|
---|
| 205 | Evaluator.CapacitiesParameter.ActualName = CapacitiesParameter.Name;
|
---|
| 206 | Evaluator.AssignmentParameter.ActualName = "Assignment";
|
---|
[6650] | 207 | }
|
---|
| 208 | #endregion
|
---|
| 209 | }
|
---|
| 210 | }
|
---|