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source: trunk/sources/HeuristicLab.Problems.VehicleRouting/3.4/Encodings/Potvin/Moves/VehicleAssignment/PotvinVehicleAssignmentMoveTabuMaker.cs @ 12012

Last change on this file since 12012 was 12012, checked in by ascheibe, 9 years ago

#2212 merged r12008, r12009, r12010 back into trunk

File size: 6.6 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2015 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;
30
31namespace HeuristicLab.Problems.VehicleRouting.Encodings.Potvin {
32  [Item("PotvinVehicleAssignmentMoveTabuMaker", "Declares a given vehicle assignment move as tabu.")]
33  [StorableClass]
34  public class PotvinVehicleAssignmentMoveTabuMaker : SingleSuccessorOperator, ITabuMaker, IPotvinVehicleAssignmentMoveOperator, IPotvinOperator, ISingleObjectiveOperator {
35    public LookupParameter<ItemList<IItem>> TabuListParameter {
36      get { return (LookupParameter<ItemList<IItem>>)Parameters["TabuList"]; }
37    }
38    public ValueLookupParameter<IntValue> TabuTenureParameter {
39      get { return (ValueLookupParameter<IntValue>)Parameters["TabuTenure"]; }
40    }
41    public ILookupParameter<DoubleValue> MoveQualityParameter {
42      get { return (ILookupParameter<DoubleValue>)Parameters["MoveQuality"]; }
43    }
44    public ILookupParameter<DoubleValue> QualityParameter {
45      get { return (ILookupParameter<DoubleValue>)Parameters["Quality"]; }
46    }
47    public IValueLookupParameter<BoolValue> MaximizationParameter {
48      get { return (IValueLookupParameter<BoolValue>)Parameters["Maximization"]; }
49    }
50
51
52    public ILookupParameter<PotvinVehicleAssignmentMove> VehicleAssignmentMoveParameter {
53      get { return (ILookupParameter<PotvinVehicleAssignmentMove>)Parameters["PotvinVehicleAssignmentMove"]; }
54    }
55    public ILookupParameter VRPMoveParameter {
56      get { return VehicleAssignmentMoveParameter; }
57    }
58    public ILookupParameter<IVRPEncoding> VRPToursParameter {
59      get { return (ILookupParameter<IVRPEncoding>)Parameters["VRPTours"]; }
60    }
61    public ILookupParameter<IVRPProblemInstance> ProblemInstanceParameter {
62      get { return (LookupParameter<IVRPProblemInstance>)Parameters["ProblemInstance"]; }
63    }
64
65    public ILookupParameter<DoubleValue> DistanceParameter {
66      get { return (ILookupParameter<DoubleValue>)Parameters["Distance"]; }
67    }
68    public ILookupParameter<DoubleValue> OverloadParameter {
69      get { return (ILookupParameter<DoubleValue>)Parameters["Overload"]; }
70    }
71    public ILookupParameter<DoubleValue> TardinessParameter {
72      get { return (ILookupParameter<DoubleValue>)Parameters["Tardiness"]; }
73    }
74
75    [StorableConstructor]
76    protected PotvinVehicleAssignmentMoveTabuMaker(bool deserializing) : base(deserializing) { }
77    protected PotvinVehicleAssignmentMoveTabuMaker(PotvinVehicleAssignmentMoveTabuMaker original, Cloner cloner) : base(original, cloner) { }
78    public PotvinVehicleAssignmentMoveTabuMaker()
79      : base() {
80      Parameters.Add(new LookupParameter<ItemList<IItem>>("TabuList", "The tabu list where move attributes are stored."));
81      Parameters.Add(new ValueLookupParameter<IntValue>("TabuTenure", "The tenure of the tabu list."));
82      Parameters.Add(new LookupParameter<DoubleValue>("MoveQuality", "The quality of the move."));
83      Parameters.Add(new LookupParameter<DoubleValue>("Quality", "The quality of the solution."));
84      Parameters.Add(new ValueLookupParameter<BoolValue>("Maximization", "True if the problem is a maximization problem, else if it is a minimization problem."));
85
86      Parameters.Add(new LookupParameter<PotvinVehicleAssignmentMove>("PotvinVehicleAssignmentMove", "The moves that should be made."));
87      Parameters.Add(new LookupParameter<IVRPEncoding>("VRPTours", "The VRP tours considered in the move."));
88      Parameters.Add(new LookupParameter<IVRPProblemInstance>("ProblemInstance", "The VRP problem instance"));
89
90      Parameters.Add(new LookupParameter<DoubleValue>("Distance", "The distance of the individual"));
91      Parameters.Add(new LookupParameter<DoubleValue>("Overload", "The overload of the individual"));
92      Parameters.Add(new LookupParameter<DoubleValue>("Tardiness", "The tardiness of the individual"));
93    }
94
95    public override IDeepCloneable Clone(Cloner cloner) {
96      return new PotvinVehicleAssignmentMoveTabuMaker(this, cloner);
97    }
98
99    public override IOperation Apply() {
100      ItemList<IItem> tabuList = TabuListParameter.ActualValue;
101      int tabuTenure = TabuTenureParameter.ActualValue.Value;
102
103      int overlength = tabuList.Count - tabuTenure;
104      if (overlength >= 0) {
105        for (int i = 0; i < tabuTenure - 1; i++)
106          tabuList[i] = tabuList[i + overlength + 1];
107        while (tabuList.Count >= tabuTenure)
108          tabuList.RemoveAt(tabuList.Count - 1);
109      }
110
111      PotvinVehicleAssignmentMove move = VehicleAssignmentMoveParameter.ActualValue;
112      double moveQuality = MoveQualityParameter.ActualValue.Value;
113      double quality = QualityParameter.ActualValue.Value;
114      double baseQuality = moveQuality;
115      if (quality < moveQuality) baseQuality = quality; // we make an uphill move, the lower bound is the solution quality
116
117      double distance = 0;
118      if (DistanceParameter.ActualValue != null)
119        distance = DistanceParameter.ActualValue.Value;
120
121      double overload = 0;
122      if (OverloadParameter.ActualValue != null)
123        overload = OverloadParameter.ActualValue.Value;
124
125      double tardiness = 0;
126      if (TardinessParameter.ActualValue != null)
127        tardiness = TardinessParameter.ActualValue.Value;
128
129      tabuList.Add(new PotvinVehicleAssignmentMoveAttribute(baseQuality, move.Tour1, move.Individual.GetVehicleAssignment(move.Tour1),
130        distance, overload, tardiness));
131      tabuList.Add(new PotvinVehicleAssignmentMoveAttribute(baseQuality, move.Tour2, move.Individual.GetVehicleAssignment(move.Tour2),
132        distance, overload, tardiness));
133
134      return base.Apply();
135    }
136  }
137}
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