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source: branches/2520_PersistenceReintegration/HeuristicLab.Problems.PTSP/3.3/Moves/TwoPointFiveOpt/StochasticTwoPointFiveMultiMoveGenerator.cs @ 16462

Last change on this file since 16462 was 16462, checked in by jkarder, 5 years ago

#2520: worked on reintegration of new persistence

  • added nuget references to HEAL.Fossil
  • added StorableType attributes to many classes
  • changed signature of StorableConstructors
  • removed some classes in old persistence
  • removed some unnecessary usings
File size: 3.0 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.Encodings.PermutationEncoding;
26using HeuristicLab.Optimization;
27using HeuristicLab.Parameters;
28using HEAL.Fossil;
29
30namespace HeuristicLab.Problems.PTSP {
31  [Item("Stochastic 2.5-MultiMoveGenerator", "Randomly samples n from all possible inversion and shift moves (2.5-opt) from a given permutation.")]
32  [StorableType("C84AA7B3-887A-4E75-9237-60011BAEBCC6")]
33  public sealed class StochasticTwoPointFiveMultiMoveGenerator : TwoPointFiveMoveGenerator, IMultiMoveGenerator, IStochasticOperator {
34    public ILookupParameter<IRandom> RandomParameter {
35      get { return (ILookupParameter<IRandom>)Parameters["Random"]; }
36    }
37    public IValueLookupParameter<IntValue> SampleSizeParameter {
38      get { return (IValueLookupParameter<IntValue>)Parameters["SampleSize"]; }
39    }
40
41    public IntValue SampleSize {
42      get { return SampleSizeParameter.Value; }
43      set { SampleSizeParameter.Value = value; }
44    }
45
46    [StorableConstructor]
47    private StochasticTwoPointFiveMultiMoveGenerator(StorableConstructorFlag _) : base(_) { }
48    private StochasticTwoPointFiveMultiMoveGenerator(StochasticTwoPointFiveMultiMoveGenerator original, Cloner cloner) : base(original, cloner) { }
49    public StochasticTwoPointFiveMultiMoveGenerator()
50      : base() {
51      Parameters.Add(new LookupParameter<IRandom>("Random", "The random number generator."));
52      Parameters.Add(new ValueLookupParameter<IntValue>("SampleSize", "The number of moves to generate."));
53    }
54
55    public override IDeepCloneable Clone(Cloner cloner) {
56      return new StochasticTwoPointFiveMultiMoveGenerator(this, cloner);
57    }
58
59    public static TwoPointFiveMove[] Apply(Permutation permutation, IRandom random, int sampleSize) {
60      var moves = new TwoPointFiveMove[sampleSize];
61      for (var i = 0; i < sampleSize; i++) {
62        moves[i] = StochasticTwoPointFiveSingleMoveGenerator.Apply(permutation, random);
63      }
64      return moves;
65    }
66
67    protected override TwoPointFiveMove[] GenerateMoves(Permutation permutation) {
68      return Apply(permutation, RandomParameter.ActualValue, SampleSizeParameter.ActualValue.Value);
69    }
70  }
71}
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