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source: branches/WebJobManager/HeuristicLab.Problems.PTSP/3.3/Moves/TwoPointFiveOpt/TwoPointFiveMoveMaker.cs @ 13741

Last change on this file since 13741 was 13470, checked in by abeham, 9 years ago

#2221:

  • implemented review comments
    • hid rng as private class, implemented djb2 hash function (hash function implementation may also change)
    • added missing probabilities
    • base class for instance providers
    • prebuild event events
    • build platforms
    • unit test will be removed on trunk integration
    • corrected assembly file version
    • distance calculator parameter was not hidden, can be changed by user, updates distance matrix
    • fixed performance problems (ouch!) also for estimated ptsp (inlined GetDistance method)
  • added moves (full evaluation) for analytical tsp
  • added local improvement operators for analytical ptsp
  • added recalculation of distance matrix when parameters change
  • still lots of other changes
File size: 3.6 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.Encodings.PermutationEncoding;
26using HeuristicLab.Operators;
27using HeuristicLab.Optimization;
28using HeuristicLab.Parameters;
29using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
30
31namespace HeuristicLab.Problems.PTSP {
32  [Item("TwoPointFiveMoveMaker", "Peforms an inversion and shift (2.5-opt) on a given permutation and updates the quality.")]
33  [StorableClass]
34  public class TwoPointFiveMoveMaker : SingleSuccessorOperator, ITwoPointFiveMoveOperator, IMoveMaker {
35    public override bool CanChangeName {
36      get { return false; }
37    }
38
39    public ILookupParameter<DoubleValue> QualityParameter {
40      get { return (ILookupParameter<DoubleValue>)Parameters["Quality"]; }
41    }
42    public ILookupParameter<DoubleValue> MoveQualityParameter {
43      get { return (ILookupParameter<DoubleValue>)Parameters["MoveQuality"]; }
44    }
45    public ILookupParameter<TwoPointFiveMove> TwoPointFiveMoveParameter {
46      get { return (ILookupParameter<TwoPointFiveMove>)Parameters["TwoPointFiveMove"]; }
47    }
48    public ILookupParameter<Permutation> PermutationParameter {
49      get { return (ILookupParameter<Permutation>)Parameters["Permutation"]; }
50    }
51
52    [StorableConstructor]
53    protected TwoPointFiveMoveMaker(bool deserializing) : base(deserializing) { }
54    protected TwoPointFiveMoveMaker(TwoPointFiveMoveMaker original, Cloner cloner) : base(original, cloner) { }
55    public TwoPointFiveMoveMaker()
56      : base() {
57      Parameters.Add(new LookupParameter<DoubleValue>("Quality", "The quality of the solution."));
58      Parameters.Add(new LookupParameter<TwoPointFiveMove>("TwoPointFiveMove", "The move to evaluate."));
59      Parameters.Add(new LookupParameter<DoubleValue>("MoveQuality", "The relative quality of the move."));
60      Parameters.Add(new LookupParameter<Permutation>("Permutation", "The solution as permutation."));
61    }
62
63    public override IDeepCloneable Clone(Cloner cloner) {
64      return new TwoPointFiveMoveMaker(this, cloner);
65    }
66
67    public override IOperation Apply() {
68      var move = TwoPointFiveMoveParameter.ActualValue;
69      var permutation = PermutationParameter.ActualValue;
70      var moveQuality = MoveQualityParameter.ActualValue;
71      var quality = QualityParameter.ActualValue;
72
73      Apply(permutation, move);
74
75      quality.Value = moveQuality.Value;
76
77      return base.Apply();
78    }
79
80    public static void Apply(Permutation permutation, TwoPointFiveMove move) {
81      if (move.IsInvert) {
82        InversionManipulator.Apply(permutation, move.Index1, move.Index2);
83      } else {
84        TranslocationManipulator.Apply(permutation, move.Index1, move.Index1, move.Index2);
85      }
86    }
87  }
88}
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