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source: branches/2994-AutoDiffForIntervals/HeuristicLab.Encodings.LinearLinkageEncoding/3.4/Moves/EMSS/StochasticEMSSSingleMoveGenerator.cs @ 17209

Last change on this file since 17209 was 17209, checked in by gkronber, 5 years ago

#2994: merged r17132:17198 from trunk to branch

File size: 2.5 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 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 System;
23using System.Linq;
24using HeuristicLab.Common;
25using HeuristicLab.Core;
26using HeuristicLab.Optimization;
27using HeuristicLab.Parameters;
28using HEAL.Attic;
29using HeuristicLab.Random;
30
31namespace HeuristicLab.Encodings.LinearLinkageEncoding {
32  [Item("StochasticEMSSSingleMoveGenerator", "Randomly samples a single from all possible EMSS moves (extract, merge, shift, and split) from a given lle grouping.")]
33  [StorableType("345211F0-E998-4C0E-B466-C2FC24D278E4")]
34  public class StochasticEMSSSingleMoveGenerator : EMSSMoveGenerator, IStochasticOperator, ISingleMoveGenerator {
35    public ILookupParameter<IRandom> RandomParameter {
36      get { return (ILookupParameter<IRandom>)Parameters["Random"]; }
37    }
38
39    [StorableConstructor]
40    protected StochasticEMSSSingleMoveGenerator(StorableConstructorFlag _) : base(_) { }
41    protected StochasticEMSSSingleMoveGenerator(StochasticEMSSSingleMoveGenerator original, Cloner cloner) : base(original, cloner) { }
42    public StochasticEMSSSingleMoveGenerator()
43      : base() {
44      Parameters.Add(new LookupParameter<IRandom>("Random", "The random number generator."));
45    }
46
47    public override IDeepCloneable Clone(Cloner cloner) {
48      return new StochasticEMSSSingleMoveGenerator(this, cloner);
49    }
50
51    protected override EMSSMove[] GenerateMoves(LinearLinkage lle) {
52      int length = lle.Length;
53      if (length == 1) throw new ArgumentException("StochasticEMSSSingleMoveGenerator: There cannot be a move given only one item.", "lle");
54
55      var random = RandomParameter.ActualValue;
56      return new[] { ExhaustiveEMSSMoveGenerator.Generate(lle).Shuffle(random).First() };
57    }
58  }
59}
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