source: branches/VRP/HeuristicLab.Problems.VehicleRouting/3.4/Encodings/Potvin/Moves/PickupDelivery/PDShift/PotvinPDShiftMoveTabuCriterion.cs @ 7791

Last change on this file since 7791 was 7791, checked in by svonolfe, 7 years ago

Improved PDP moves (#1177)

File size: 7.5 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2010 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
22using HeuristicLab.Common;
23using HeuristicLab.Core;
24using HeuristicLab.Data;
25using HeuristicLab.Operators;
26using HeuristicLab.Optimization;
27using HeuristicLab.Parameters;
28using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
29using HeuristicLab.Problems.VehicleRouting.Interfaces;
30using HeuristicLab.Problems.VehicleRouting.Variants;
31
32namespace HeuristicLab.Problems.VehicleRouting.Encodings.Potvin {
33  [Item("PotvinPDShiftTabuCriterion", @"Checks if a certain shift move is tabu.")]
34  [StorableClass]
35  public class PotvinPDShiftTabuCriterion : SingleSuccessorOperator, IPotvinPDShiftMoveOperator, ITabuChecker, IPotvinOperator, IVRPMoveOperator {
36    public override bool CanChangeName {
37      get { return false; }
38    }
39
40    public ILookupParameter<PotvinPDShiftMove> PDShiftMoveParameter {
41      get { return (ILookupParameter<PotvinPDShiftMove>)Parameters["PotvinPDShiftMove"]; }
42    }
43    public ILookupParameter VRPMoveParameter {
44      get { return PDShiftMoveParameter; }
45    }
46    public ILookupParameter<IVRPEncoding> VRPToursParameter {
47      get { return (ILookupParameter<IVRPEncoding>)Parameters["VRPTours"]; }
48    }
49    public ILookupParameter<IVRPProblemInstance> ProblemInstanceParameter {
50      get { return (LookupParameter<IVRPProblemInstance>)Parameters["ProblemInstance"]; }
51    } 
52
53    public ILookupParameter<ItemList<IItem>> TabuListParameter {
54      get { return (ILookupParameter<ItemList<IItem>>)Parameters["TabuList"]; }
55    }
56    public ILookupParameter<BoolValue> MoveTabuParameter {
57      get { return (ILookupParameter<BoolValue>)Parameters["MoveTabu"]; }
58    }
59    public IValueLookupParameter<BoolValue> MaximizationParameter {
60      get { return (IValueLookupParameter<BoolValue>)Parameters["Maximization"]; }
61    }
62    public ILookupParameter<DoubleValue> MoveQualityParameter {
63      get { return (ILookupParameter<DoubleValue>)Parameters["MoveQuality"]; }
64    }
65    public ValueParameter<BoolValue> UseAspirationCriterionParameter {
66      get { return (ValueParameter<BoolValue>)Parameters["UseAspirationCriterion"]; }
67    }
68
69    public ILookupParameter<DoubleValue> MoveDistanceParameter {
70      get { return (ILookupParameter<DoubleValue>)Parameters["MoveDistance"]; }
71    }
72    public ILookupParameter<DoubleValue> MoveOverloadParameter {
73      get { return (ILookupParameter<DoubleValue>)Parameters["MoveOverload"]; }
74    }
75    public ILookupParameter<DoubleValue> MoveTardinessParameter {
76      get { return (ILookupParameter<DoubleValue>)Parameters["MoveTardiness"]; }
77    }
78
79    public BoolValue UseAspirationCriterion {
80      get { return UseAspirationCriterionParameter.Value; }
81      set { UseAspirationCriterionParameter.Value = value; }
82    }
83
84    [StorableConstructor]
85    protected PotvinPDShiftTabuCriterion(bool deserializing) : base(deserializing) { }
86    protected PotvinPDShiftTabuCriterion(PotvinPDShiftTabuCriterion original, Cloner cloner) : base(original, cloner) { }
87    public PotvinPDShiftTabuCriterion()
88      : base() {
89      Parameters.Add(new LookupParameter<PotvinPDShiftMove>("PotvinPDShiftMove", "The moves that should be made."));
90      Parameters.Add(new LookupParameter<IVRPEncoding>("VRPTours", "The VRP tours considered in the move."));
91      Parameters.Add(new LookupParameter<IVRPProblemInstance>("ProblemInstance", "The VRP problem instance"));
92
93      Parameters.Add(new LookupParameter<BoolValue>("MoveTabu", "The variable to store if a move was tabu."));
94      Parameters.Add(new LookupParameter<ItemList<IItem>>("TabuList", "The tabu list."));
95      Parameters.Add(new ValueParameter<BoolValue>("UseAspirationCriterion", "Whether to use the aspiration criterion or not.", new BoolValue(true)));
96      Parameters.Add(new ValueLookupParameter<BoolValue>("Maximization", "True if the problem is a maximization problem, else if it is a minimization problem."));
97      Parameters.Add(new LookupParameter<DoubleValue>("MoveQuality", "The quality of the current move."));
98
99      Parameters.Add(new LookupParameter<DoubleValue>("MoveDistance", "The distance of the move"));
100      Parameters.Add(new LookupParameter<DoubleValue>("MoveOverload", "The overload of the move"));
101      Parameters.Add(new LookupParameter<DoubleValue>("MoveTardiness", "The tardiness of the move"));
102    }
103
104    public override IDeepCloneable Clone(Cloner cloner) {
105      return new PotvinPDShiftTabuCriterion(this, cloner);
106    }
107
108    public override IOperation Apply() {
109      ItemList<IItem> tabuList = TabuListParameter.ActualValue;
110      double moveQuality = MoveQualityParameter.ActualValue.Value;
111      bool useAspiration = UseAspirationCriterion.Value;
112      bool isTabu = false;
113      PotvinPDShiftMove move = PDShiftMoveParameter.ActualValue;
114
115      foreach (IItem tabuMove in tabuList) {
116        PotvinPDRelocateMoveAttribute attribute = tabuMove as PotvinPDRelocateMoveAttribute;
117
118        if (attribute != null) {
119          double distance = 0;
120          if (MoveDistanceParameter.ActualValue != null)
121            distance = MoveDistanceParameter.ActualValue.Value;
122
123          double overload = 0;
124          if (MoveOverloadParameter.ActualValue != null)
125            overload = MoveOverloadParameter.ActualValue.Value;
126
127          double tardiness = 0;
128          if (MoveTardinessParameter.ActualValue != null)
129            tardiness = MoveTardinessParameter.ActualValue.Value;
130
131          IVRPProblemInstance instance = ProblemInstanceParameter.ActualValue;
132          double quality = attribute.Distance * instance.DistanceFactor.Value;
133
134          IHomogenousCapacitatedProblemInstance cvrp = instance as IHomogenousCapacitatedProblemInstance;
135          if (cvrp != null)
136            quality += attribute.Overload * cvrp.OverloadPenalty.Value;
137
138          ITimeWindowedProblemInstance vrptw = instance as ITimeWindowedProblemInstance;
139          if (vrptw != null)
140            quality += attribute.Tardiness * vrptw.TardinessPenalty.Value;
141
142          IPickupAndDeliveryProblemInstance pdp = instance as IPickupAndDeliveryProblemInstance;
143          if (pdp != null)
144            quality += attribute.PickupViolations * pdp.PickupViolationPenalty.Value;
145
146          if (!useAspiration || moveQuality >= quality) {
147            if (attribute.City == move.City && attribute.Tour == move.Tour) {
148              isTabu = true;
149              break;
150            }
151
152            if (attribute.Distance == distance && attribute.Overload == overload && attribute.Tardiness == tardiness) {
153              isTabu = true;
154              break;
155            }
156          }
157        }
158      }
159     
160      MoveTabuParameter.ActualValue = new BoolValue(isTabu);
161      return base.Apply();
162    }
163  }
164}
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