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source: branches/LinearLinkage/HeuristicLab.Encodings.LinearLinkageEncoding/3.3/Manipulators/MultiLLEManipulator.cs @ 12288

Last change on this file since 12288 was 12288, checked in by abeham, 9 years ago

#2319:

  • Changed encoding to represent linkages in LLE (as opposed to LLE-e)
  • Added GraftManipulator
  • Added repair procedure
  • Improved performance of some crossovers
File size: 4.0 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.Collections.Generic;
24using System.Linq;
25using HeuristicLab.Collections;
26using HeuristicLab.Common;
27using HeuristicLab.Core;
28using HeuristicLab.Operators;
29using HeuristicLab.Optimization;
30using HeuristicLab.Parameters;
31using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
32using HeuristicLab.PluginInfrastructure;
33
34namespace HeuristicLab.Encodings.LinearLinkageEncoding {
35  [Item("Multi LLE Manipulator", "Randomly selects and applies one of its manipulators every time it is called.")]
36  [StorableClass]
37  public class MultiLinearLinkageManipulator : StochasticMultiBranch<ILinearLinkageManipulator>, ILinearLinkageManipulator, IStochasticOperator {
38    public override bool CanChangeName {
39      get { return false; }
40    }
41    protected override bool CreateChildOperation {
42      get { return true; }
43    }
44
45    public ILookupParameter<LinearLinkage> LLEParameter {
46      get { return (ILookupParameter<LinearLinkage>)Parameters["LLE"]; }
47    }
48
49    [StorableConstructor]
50    protected MultiLinearLinkageManipulator(bool deserializing) : base(deserializing) { }
51    protected MultiLinearLinkageManipulator(MultiLinearLinkageManipulator original, Cloner cloner) : base(original, cloner) { }
52    public MultiLinearLinkageManipulator()
53      : base() {
54      Parameters.Add(new LookupParameter<LinearLinkage>("LLE", "The encoding vector that is to be manipulated."));
55      foreach (Type type in ApplicationManager.Manager.GetTypes(typeof(ILinearLinkageManipulator))) {
56        if (!typeof(MultiOperator<ILinearLinkageManipulator>).IsAssignableFrom(type))
57          Operators.Add((ILinearLinkageManipulator)Activator.CreateInstance(type), true);
58      }
59      Operators.SetItemCheckedState(Operators.OfType<SwapItemManipulator>().First(), false);
60      Operators.SetItemCheckedState(Operators.OfType<GraftManipulator>().First(), false);
61      SelectedOperatorParameter.ActualName = "SelectedManipulatorOperator";
62    }
63
64    public override IDeepCloneable Clone(Cloner cloner) {
65      return new MultiLinearLinkageManipulator(this, cloner);
66    }
67
68    protected override void Operators_ItemsReplaced(object sender, CollectionItemsChangedEventArgs<IndexedItem<ILinearLinkageManipulator>> e) {
69      base.Operators_ItemsReplaced(sender, e);
70      ParameterizeManipulators(e.Items);
71    }
72
73    protected override void Operators_ItemsAdded(object sender, CollectionItemsChangedEventArgs<IndexedItem<ILinearLinkageManipulator>> e) {
74      base.Operators_ItemsAdded(sender, e);
75      ParameterizeManipulators(e.Items);
76    }
77
78    private void ParameterizeManipulators(IEnumerable<IndexedItem<ILinearLinkageManipulator>> manipulators) {
79      foreach (var m in manipulators.Select(x => x.Value)) {
80        m.LLEParameter.ActualName = LLEParameter.Name;
81        var stOp = m as IStochasticOperator;
82        if (stOp != null) stOp.RandomParameter.ActualName = RandomParameter.Name;
83      }
84    }
85
86    public override IOperation InstrumentedApply() {
87      if (Operators.Count == 0) throw new InvalidOperationException(Name + ": Please add at least one LLE manipulator to choose from.");
88      return base.InstrumentedApply();
89    }
90  }
91}
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