source: branches/2936_GQAPIntegration/HeuristicLab.Problems.GeneralizedQuadraticAssignment/3.3/Moves/NMoveTabuMaker.cs @ 16077

Last change on this file since 16077 was 16077, checked in by abeham, 12 months ago

#2936: Added integration branch

File size: 3.0 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2018 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.Encodings.IntegerVectorEncoding;
25using HeuristicLab.Optimization.Operators;
26using HeuristicLab.Parameters;
27using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
28
29namespace HeuristicLab.Problems.GeneralizedQuadraticAssignment.Moves {
30  [Item("N-Move TabuMaker", "Declares an N-Move tabu.")]
31  [StorableClass]
32  public class NMoveTabuMaker : TabuMaker, IGQAPNMoveOperator, IMoveQualityAwareGQAPOperator {
33
34    public ILookupParameter<IntegerVector> AssignmentParameter {
35      get { return (ILookupParameter<IntegerVector>)Parameters["Assignment"]; }
36    }
37    public ILookupParameter<NMove> MoveParameter {
38      get { return (ILookupParameter<NMove>)Parameters["Move"]; }
39    }
40    public ILookupParameter<Evaluation> MoveEvaluationParameter {
41      get { return (ILookupParameter<Evaluation>)Parameters["MoveEvaluation"]; }
42    }
43
44    [StorableConstructor]
45    protected NMoveTabuMaker(bool deserializing) : base(deserializing) { }
46    protected NMoveTabuMaker(NMoveTabuMaker original, Cloner cloner) : base(original, cloner) { }
47    public NMoveTabuMaker()
48      : base() {
49      Parameters.Add(new LookupParameter<IntegerVector>("Assignment", GQAPSolutionCreator.AssignmentDescription));
50      Parameters.Add(new LookupParameter<NMove>("Move", GQAPNMoveGenerator.MoveDescription));
51      Parameters.Add(new LookupParameter<Evaluation>("MoveEvaluation", GQAPNMoveEvaluator.MoveEvaluationDescription));
52    }
53
54    public override IDeepCloneable Clone(Cloner cloner) {
55      return new NMoveTabuMaker(this, cloner);
56    }
57
58    protected override IItem GetTabuAttribute(bool maximization, double quality, double moveQuality) {
59      var move = MoveParameter.ActualValue;
60      var assignment = AssignmentParameter.ActualValue;
61      double baseQuality = moveQuality;
62      if (maximization && quality > moveQuality || !maximization && quality < moveQuality) baseQuality = quality; // we make an uphill move, the lower bound is the solution quality
63      return new NMoveAbsoluteTabuAttribute(move, assignment, baseQuality);
64    }
65  }
66}
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