source: trunk/sources/HeuristicLab.Encodings.PermutationEncoding/3.3/Moves/ThreeOpt/TranslocationMoveTabuMaker.cs @ 12012

Last change on this file since 12012 was 12012, checked in by ascheibe, 5 years ago

#2212 merged r12008, r12009, r12010 back into trunk

File size: 3.9 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.Optimization.Operators;
25using HeuristicLab.Parameters;
26using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
27
28namespace HeuristicLab.Encodings.PermutationEncoding {
29  [Item("TranslocationMoveTabuMaker", "Declares a given translocation or insertion move (3-opt) as tabu, by adding its attributes to the tabu list.")]
30  [StorableClass]
31  public class TranslocationMoveTabuMaker : TabuMaker, IPermutationTranslocationMoveOperator {
32    public ILookupParameter<Permutation> PermutationParameter {
33      get { return (ILookupParameter<Permutation>)Parameters["Permutation"]; }
34    }
35    public ILookupParameter<TranslocationMove> TranslocationMoveParameter {
36      get { return (LookupParameter<TranslocationMove>)Parameters["TranslocationMove"]; }
37    }
38
39    [StorableConstructor]
40    protected TranslocationMoveTabuMaker(bool deserializing) : base(deserializing) { }
41    protected TranslocationMoveTabuMaker(TranslocationMoveTabuMaker original, Cloner cloner) : base(original, cloner) { }
42    public TranslocationMoveTabuMaker()
43      : base() {
44      Parameters.Add(new LookupParameter<TranslocationMove>("TranslocationMove", "The move that was made."));
45      Parameters.Add(new LookupParameter<Permutation>("Permutation", "The solution as permutation."));
46    }
47
48    public override IDeepCloneable Clone(Cloner cloner) {
49      return new TranslocationMoveTabuMaker(this, cloner);
50    }
51
52    protected override IItem GetTabuAttribute(bool maximization, double quality, double moveQuality) {
53      TranslocationMove move = TranslocationMoveParameter.ActualValue;
54      Permutation permutation = PermutationParameter.ActualValue;
55      double baseQuality = moveQuality;
56      if (maximization && quality > moveQuality || !maximization && quality < moveQuality) baseQuality = quality; // we make an uphill move, the lower bound is the solution quality
57      if (permutation.PermutationType == PermutationTypes.Absolute) {
58        int[] numbers = new int[move.Index2 - move.Index1 + 1];
59        for (int i = 0; i < numbers.Length; i++) {
60          numbers[i] = permutation[i + move.Index1];
61        }
62        return new TranslocationMoveAbsoluteAttribute(numbers, move.Index1, move.Index3, baseQuality); ;
63      } else {
64        if (move.Index3 > move.Index1)
65          return new TranslocationMoveRelativeAttribute(permutation.GetCircular(move.Index1 - 1),
66          permutation[move.Index1],
67          permutation[move.Index2],
68          permutation.GetCircular(move.Index2 + 1),
69          permutation.GetCircular(move.Index3 + move.Index2 - move.Index1),
70          permutation.GetCircular(move.Index3 + move.Index2 - move.Index1 + 1),
71          baseQuality);
72        else
73          return new TranslocationMoveRelativeAttribute(permutation.GetCircular(move.Index1 - 1),
74          permutation[move.Index1],
75          permutation[move.Index2],
76          permutation.GetCircular(move.Index2 + 1),
77          permutation.GetCircular(move.Index3 - 1),
78          permutation.GetCircular(move.Index3),
79          baseQuality);
80      }
81    }
82  }
83}
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