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source: branches/LinearLinkage/HeuristicLab.Encodings.LinearLinkageEncoding/3.3/Creators/RandomLinearLinkageCreator.cs @ 12643

Last change on this file since 12643 was 12643, checked in by abeham, 9 years ago

#2319:

  • Added two new solution creators
  • Added swap2 neighborhood
  • Added license headers
  • Pruned usings
  • Fixed namespaces
File size: 2.2 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2015 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.Persistence.Default.CompositeSerializers.Storable;
27
28namespace HeuristicLab.Encodings.LinearLinkageEncoding {
29  [Item("Random Linear Linkage Creator", "Creates a random linear linkage LLE encoded solution (similar to MaxGroups set to N).")]
30  [StorableClass]
31  public sealed class RandomLinearLinkageCreator : LinearLinkageCreator {
32
33    [StorableConstructor]
34    private RandomLinearLinkageCreator(bool deserializing) : base(deserializing) { }
35    private RandomLinearLinkageCreator(RandomLinearLinkageCreator original, Cloner cloner) : base(original, cloner) { }
36    public RandomLinearLinkageCreator() { }
37
38    public override IDeepCloneable Clone(Cloner cloner) {
39      return new RandomLinearLinkageCreator(this, cloner);
40    }
41
42    public static LinearLinkage Apply(IRandom random, int length) {
43      var solution = new LinearLinkage(length);
44      var groups = Enumerable.Range(0, length).Select(x => Tuple.Create(x, random.Next(length)))
45                                              .GroupBy(x => x.Item2)
46                                              .Select(x => x.Select(y => y.Item1).ToList());
47      solution.SetGroups(groups);
48      return solution;
49    }
50
51    protected override LinearLinkage Create(IRandom random, int length) {
52      return Apply(random, length);
53    }
54  }
55}
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