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source: stable/HeuristicLab.Encodings.LinearLinkageEncoding/3.4/Moves/Swap/StochasticSwap2MultiMoveGenerator.cs @ 17886

Last change on this file since 17886 was 17181, checked in by swagner, 5 years ago

#2875: Merged r17180 from trunk to stable

File size: 2.9 KB
RevLine 
[12643]1#region License Information
2/* HeuristicLab
[17181]3 * Copyright (C) Heuristic and Evolutionary Algorithms Laboratory (HEAL)
[12643]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;
[17097]27using HEAL.Attic;
[12643]28
29namespace HeuristicLab.Encodings.LinearLinkageEncoding {
30  [Item("StochasticSwap2MultiMoveGenerator", "Randomly samples n from all possible swap-2 moves from a given lle grouping.")]
[17097]31  [StorableType("156E5EAE-D929-41CE-844E-7DECE09CB74B")]
[12643]32  public class StochasticSwap2MultiMoveGenerator : Swap2MoveGenerator, IMultiMoveGenerator, IStochasticOperator {
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]
[17097]46    protected StochasticSwap2MultiMoveGenerator(StorableConstructorFlag _) : base(_) { }
[12643]47    protected StochasticSwap2MultiMoveGenerator(StochasticSwap2MultiMoveGenerator original, Cloner cloner) : base(original, cloner) { }
48    public StochasticSwap2MultiMoveGenerator()
49      : base() {
50      Parameters.Add(new LookupParameter<IRandom>("Random", "The random number generator."));
51      Parameters.Add(new ValueLookupParameter<IntValue>("SampleSize", "The number of moves to generate."));
52    }
53
54    public override IDeepCloneable Clone(Cloner cloner) {
55      return new StochasticSwap2MultiMoveGenerator(this, cloner);
56    }
57
58    public static Swap2Move[] Apply(LinearLinkage lle, IRandom random, int sampleSize) {
59      int length = lle.Length;
60      Swap2Move[] moves = new Swap2Move[sampleSize];
61      for (int i = 0; i < sampleSize; i++) {
62        moves[i] = StochasticSwap2SingleMoveGenerator.Apply(lle, random);
63      }
64      return moves;
65    }
66
67    protected override Swap2Move[] GenerateMoves(LinearLinkage lle) {
68      IRandom random = RandomParameter.ActualValue;
69      return Apply(lle, random, SampleSizeParameter.ActualValue.Value);
70    }
71  }
72}
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