[6773] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[17180] | 3 | * Copyright (C) Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[6773] | 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 HeuristicLab.Common;
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| 23 | using HeuristicLab.Core;
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| 24 | using HeuristicLab.Data;
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| 25 | using HeuristicLab.Operators;
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| 26 | using HeuristicLab.Optimization;
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| 27 | using HeuristicLab.Parameters;
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[16565] | 28 | using HEAL.Attic;
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[6773] | 29 | using HeuristicLab.Problems.VehicleRouting.Interfaces;
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[6797] | 30 | using HeuristicLab.Problems.VehicleRouting.Variants;
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[6773] | 31 |
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| 32 | namespace HeuristicLab.Problems.VehicleRouting.Encodings.Potvin {
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| 33 | [Item("PotvinPDExchangeTabuCriterion", @"Checks if a certain exchange move is tabu.")]
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[16565] | 34 | [StorableType("65696327-6751-4029-9B07-849AEB0B79EE")]
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[6773] | 35 | public class PotvinPDExchangeTabuCriterion : SingleSuccessorOperator, IPotvinPDExchangeMoveOperator, ITabuChecker, IPotvinOperator, IVRPMoveOperator {
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| 36 | public override bool CanChangeName {
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| 37 | get { return false; }
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| 38 | }
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| 39 |
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| 40 | public ILookupParameter<PotvinPDExchangeMove> PDExchangeMoveParameter {
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| 41 | get { return (ILookupParameter<PotvinPDExchangeMove>)Parameters["PotvinPDExchangeMove"]; }
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| 42 | }
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| 43 | public ILookupParameter VRPMoveParameter {
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| 44 | get { return PDExchangeMoveParameter; }
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| 45 | }
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| 46 | public ILookupParameter<IVRPEncoding> VRPToursParameter {
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| 47 | get { return (ILookupParameter<IVRPEncoding>)Parameters["VRPTours"]; }
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| 48 | }
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| 49 | public ILookupParameter<IVRPProblemInstance> ProblemInstanceParameter {
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| 50 | get { return (LookupParameter<IVRPProblemInstance>)Parameters["ProblemInstance"]; }
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[8053] | 51 | }
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[6773] | 52 |
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| 53 | public ILookupParameter<ItemList<IItem>> TabuListParameter {
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| 54 | get { return (ILookupParameter<ItemList<IItem>>)Parameters["TabuList"]; }
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| 55 | }
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| 56 | public ILookupParameter<BoolValue> MoveTabuParameter {
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| 57 | get { return (ILookupParameter<BoolValue>)Parameters["MoveTabu"]; }
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| 58 | }
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| 59 | public IValueLookupParameter<BoolValue> MaximizationParameter {
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| 60 | get { return (IValueLookupParameter<BoolValue>)Parameters["Maximization"]; }
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| 61 | }
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| 62 | public ILookupParameter<DoubleValue> MoveQualityParameter {
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| 63 | get { return (ILookupParameter<DoubleValue>)Parameters["MoveQuality"]; }
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| 64 | }
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| 65 | public ValueParameter<BoolValue> UseAspirationCriterionParameter {
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| 66 | get { return (ValueParameter<BoolValue>)Parameters["UseAspirationCriterion"]; }
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| 67 | }
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| 68 |
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| 69 | public ILookupParameter<DoubleValue> MoveDistanceParameter {
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| 70 | get { return (ILookupParameter<DoubleValue>)Parameters["MoveDistance"]; }
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| 71 | }
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| 72 | public ILookupParameter<DoubleValue> MoveOverloadParameter {
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| 73 | get { return (ILookupParameter<DoubleValue>)Parameters["MoveOverload"]; }
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| 74 | }
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| 75 | public ILookupParameter<DoubleValue> MoveTardinessParameter {
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| 76 | get { return (ILookupParameter<DoubleValue>)Parameters["MoveTardiness"]; }
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| 77 | }
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| 78 |
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| 79 | public BoolValue UseAspirationCriterion {
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| 80 | get { return UseAspirationCriterionParameter.Value; }
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| 81 | set { UseAspirationCriterionParameter.Value = value; }
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| 82 | }
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| 83 |
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| 84 | [StorableConstructor]
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[16565] | 85 | protected PotvinPDExchangeTabuCriterion(StorableConstructorFlag _) : base(_) { }
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[6773] | 86 | protected PotvinPDExchangeTabuCriterion(PotvinPDExchangeTabuCriterion original, Cloner cloner) : base(original, cloner) { }
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| 87 | public PotvinPDExchangeTabuCriterion()
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| 88 | : base() {
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| 89 | Parameters.Add(new LookupParameter<PotvinPDExchangeMove>("PotvinPDExchangeMove", "The moves that should be made."));
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| 90 | Parameters.Add(new LookupParameter<IVRPEncoding>("VRPTours", "The VRP tours considered in the move."));
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| 91 | Parameters.Add(new LookupParameter<IVRPProblemInstance>("ProblemInstance", "The VRP problem instance"));
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| 92 |
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| 93 | Parameters.Add(new LookupParameter<BoolValue>("MoveTabu", "The variable to store if a move was tabu."));
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| 94 | Parameters.Add(new LookupParameter<ItemList<IItem>>("TabuList", "The tabu list."));
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| 95 | Parameters.Add(new ValueParameter<BoolValue>("UseAspirationCriterion", "Whether to use the aspiration criterion or not.", new BoolValue(true)));
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| 96 | Parameters.Add(new ValueLookupParameter<BoolValue>("Maximization", "True if the problem is a maximization problem, else if it is a minimization problem."));
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| 97 | Parameters.Add(new LookupParameter<DoubleValue>("MoveQuality", "The quality of the current move."));
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| 98 |
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| 99 | Parameters.Add(new LookupParameter<DoubleValue>("MoveDistance", "The distance of the move"));
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| 100 | Parameters.Add(new LookupParameter<DoubleValue>("MoveOverload", "The overload of the move"));
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| 101 | Parameters.Add(new LookupParameter<DoubleValue>("MoveTardiness", "The tardiness of the move"));
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| 102 | }
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| 103 |
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| 104 | public override IDeepCloneable Clone(Cloner cloner) {
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| 105 | return new PotvinPDExchangeTabuCriterion(this, cloner);
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| 106 | }
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| 107 |
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| 108 | public override IOperation Apply() {
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| 109 | ItemList<IItem> tabuList = TabuListParameter.ActualValue;
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| 110 | double moveQuality = MoveQualityParameter.ActualValue.Value;
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| 111 | bool useAspiration = UseAspirationCriterion.Value;
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| 112 | bool isTabu = false;
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| 113 | PotvinPDExchangeMove move = PDExchangeMoveParameter.ActualValue;
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| 114 |
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| 115 | foreach (IItem tabuMove in tabuList) {
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| 116 | PotvinPDRelocateMoveAttribute attribute = tabuMove as PotvinPDRelocateMoveAttribute;
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| 117 |
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[6857] | 118 | if (attribute != null) {
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| 119 | double distance = 0;
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| 120 | if (MoveDistanceParameter.ActualValue != null)
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| 121 | distance = MoveDistanceParameter.ActualValue.Value;
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[6797] | 122 |
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[6857] | 123 | double overload = 0;
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| 124 | if (MoveOverloadParameter.ActualValue != null)
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| 125 | overload = MoveOverloadParameter.ActualValue.Value;
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[6797] | 126 |
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[6857] | 127 | double tardiness = 0;
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| 128 | if (MoveTardinessParameter.ActualValue != null)
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| 129 | tardiness = MoveTardinessParameter.ActualValue.Value;
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[6797] | 130 |
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[6857] | 131 | IVRPProblemInstance instance = ProblemInstanceParameter.ActualValue;
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| 132 | double quality = attribute.Distance * instance.DistanceFactor.Value;
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[6797] | 133 |
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[6857] | 134 | IHomogenousCapacitatedProblemInstance cvrp = instance as IHomogenousCapacitatedProblemInstance;
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| 135 | if (cvrp != null)
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| 136 | quality += attribute.Overload * cvrp.OverloadPenalty.Value;
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[6797] | 137 |
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[6857] | 138 | ITimeWindowedProblemInstance vrptw = instance as ITimeWindowedProblemInstance;
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| 139 | if (vrptw != null)
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| 140 | quality += attribute.Tardiness * vrptw.TardinessPenalty.Value;
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[6797] | 141 |
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[7791] | 142 | IPickupAndDeliveryProblemInstance pdp = instance as IPickupAndDeliveryProblemInstance;
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| 143 | if (pdp != null)
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| 144 | quality += attribute.PickupViolations * pdp.PickupViolationPenalty.Value;
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| 145 |
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[6857] | 146 | if (!useAspiration || moveQuality >= quality) {
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| 147 | if ((attribute.City == move.City && attribute.Tour == move.Tour) ||
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| 148 | (attribute.City == move.Replaced && attribute.Tour == move.OldTour)) {
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| 149 | isTabu = true;
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| 150 | break;
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| 151 | }
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[6773] | 152 |
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[6857] | 153 | if (attribute.Distance == distance && attribute.Overload == overload && attribute.Tardiness == tardiness) {
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| 154 | isTabu = true;
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| 155 | break;
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| 156 | }
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[6773] | 157 | }
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| 158 | }
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| 159 | }
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[8053] | 160 |
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[6773] | 161 | MoveTabuParameter.ActualValue = new BoolValue(isTabu);
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| 162 | return base.Apply();
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| 163 | }
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| 164 | }
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| 165 | }
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