source: branches/2520_PersistenceReintegration/HeuristicLab.Encodings.PermutationEncoding/3.3/Moves/ThreeOpt/StochasticTranslocationMultiMoveGenerator.cs @ 16453

Last change on this file since 16453 was 16453, checked in by jkarder, 10 months ago

#2520: updated year of copyrights

File size: 3.1 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2019 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.Optimization;
26using HeuristicLab.Parameters;
27using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
28
29namespace HeuristicLab.Encodings.PermutationEncoding {
30  [Item("StochasticTranslocationMultiMoveGenerator", "Randomly samples n from all possible translocation and insertion moves (3-opt) from a given permutation.")]
31  [StorableClass]
32  public class StochasticTranslocationMultiMoveGenerator : TranslocationMoveGenerator, IStochasticOperator, IMultiMoveGenerator {
33    public ILookupParameter<IRandom> RandomParameter {
34      get { return (ILookupParameter<IRandom>)Parameters["Random"]; }
35    }
36    public IValueLookupParameter<IntValue> SampleSizeParameter {
37      get { return (IValueLookupParameter<IntValue>)Parameters["SampleSize"]; }
38    }
39
40    public IntValue SampleSize {
41      get { return SampleSizeParameter.Value; }
42      set { SampleSizeParameter.Value = value; }
43    }
44
45    [StorableConstructor]
46    protected StochasticTranslocationMultiMoveGenerator(bool deserializing) : base(deserializing) { }
47    protected StochasticTranslocationMultiMoveGenerator(StochasticTranslocationMultiMoveGenerator original, Cloner cloner) : base(original, cloner) { }
48    public StochasticTranslocationMultiMoveGenerator() : base() {
49      Parameters.Add(new LookupParameter<IRandom>("Random", "The random number generator."));
50      Parameters.Add(new ValueLookupParameter<IntValue>("SampleSize", "The number of moves to generate."));
51    }
52
53    public override IDeepCloneable Clone(Cloner cloner) {
54      return new StochasticTranslocationMultiMoveGenerator(this, cloner);
55    }
56
57    public static TranslocationMove[] Apply(Permutation permutation, IRandom random, int sampleSize) {
58      int length = permutation.Length;
59      TranslocationMove[] moves = new TranslocationMove[sampleSize];
60      for (int i = 0; i < sampleSize; i++) {
61        moves[i] = StochasticTranslocationSingleMoveGenerator.Apply(permutation, random);
62      }
63      return moves;
64    }
65
66    protected override TranslocationMove[] GenerateMoves(Permutation permutation) {
67      IRandom random = RandomParameter.ActualValue;
68      return Apply(permutation, random, SampleSizeParameter.ActualValue.Value);
69    }
70  }
71}
Note: See TracBrowser for help on using the repository browser.