source: branches/2994-AutoDiffForIntervals/HeuristicLab.Encodings.RealVectorEncoding/3.3/ShakingOperators/RealVectorShakingOperator.cs @ 17209

Last change on this file since 17209 was 17209, checked in by gkronber, 4 months ago

#2994: merged r17132:17198 from trunk to branch

File size: 4.6 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.Collections.Generic;
23using System.Linq;
24using HeuristicLab.Collections;
25using HeuristicLab.Common;
26using HeuristicLab.Core;
27using HeuristicLab.Data;
28using HeuristicLab.Optimization;
29using HeuristicLab.Optimization.Operators;
30using HeuristicLab.Parameters;
31using HEAL.Attic;
32using HeuristicLab.PluginInfrastructure;
33
34namespace HeuristicLab.Encodings.RealVectorEncoding {
35  /// <summary>
36  /// A shaking operator for VNS.
37  /// </summary>
38  [Item("RealVectorShakingOperator", "A shaking operator for VNS which uses available manipulation operators to perform the shaking.")]
39  [StorableType("EDA38073-1563-488D-80A0-67FBDFE8B460")]
40  public class RealVectorShakingOperator : ShakingOperator<IRealVectorManipulator>, IRealVectorMultiNeighborhoodShakingOperator, IStochasticOperator {
41
42    public ILookupParameter<RealVector> RealVectorParameter {
43      get { return (ILookupParameter<RealVector>)Parameters["RealVector"]; }
44    }
45
46    public ILookupParameter<IRandom> RandomParameter {
47      get { return (LookupParameter<IRandom>)Parameters["Random"]; }
48    }
49
50    public IValueLookupParameter<DoubleMatrix> BoundsParameter {
51      get { return (IValueLookupParameter<DoubleMatrix>)Parameters["Bounds"]; }
52    }
53
54
55    [StorableConstructor]
56    protected RealVectorShakingOperator(StorableConstructorFlag _) : base(_) { }
57    protected RealVectorShakingOperator(RealVectorShakingOperator original, Cloner cloner) : base(original, cloner) { }
58    public override IDeepCloneable Clone(Cloner cloner) {
59      return new RealVectorShakingOperator(this, cloner);
60    }
61    public RealVectorShakingOperator()
62      : base() {
63      Parameters.Add(new LookupParameter<RealVector>("RealVector", "The real vector to shake."));
64      Parameters.Add(new LookupParameter<IRandom>("Random", "The random number generator that will be used for stochastic shaking operators."));
65      Parameters.Add(new ValueLookupParameter<DoubleMatrix>("Bounds", "A 2 column matrix specifying the lower and upper bound for each dimension. If there are less rows than dimension the bounds vector is cycled."));
66      foreach (IRealVectorManipulator shaker in ApplicationManager.Manager.GetInstances<IRealVectorManipulator>().OrderBy(x => x.Name))
67        if (!(shaker is MultiRealVectorManipulator)
68          && !(shaker is ISelfAdaptiveManipulator)) Operators.Add(shaker);
69    }
70
71    [StorableHook(HookType.AfterDeserialization)]
72    private void AfterDeserialization() {
73      #region Backwards compatible code, remove with 3.4
74      if (!Parameters.ContainsKey("Bounds"))
75        Parameters.Add(new ValueLookupParameter<DoubleMatrix>("Bounds", "A 2 column matrix specifying the lower and upper bound for each dimension. If there are less rows than dimension the bounds vector is cycled."));
76      #endregion
77    }
78
79    #region Wiring of some parameters
80    protected override void Operators_ItemsAdded(object sender, CollectionItemsChangedEventArgs<IndexedItem<IRealVectorManipulator>> e) {
81      base.Operators_ItemsAdded(sender, e);
82      ParameterizeOperators(e.Items);
83    }
84
85    protected override void Operators_ItemsReplaced(object sender, CollectionItemsChangedEventArgs<IndexedItem<IRealVectorManipulator>> e) {
86      base.Operators_ItemsReplaced(sender, e);
87      ParameterizeOperators(e.Items);
88    }
89
90    private void ParameterizeOperators(IEnumerable<IndexedItem<IRealVectorManipulator>> items) {
91      if (items.Any()) {
92        foreach (IStochasticOperator op in items.Select(x => x.Value).OfType<IStochasticOperator>())
93          op.RandomParameter.ActualName = RandomParameter.Name;
94        foreach (IRealVectorManipulator op in items.Select(x => x.Value).OfType<IRealVectorManipulator>())
95          op.RealVectorParameter.ActualName = RealVectorParameter.Name;
96      }
97    }
98    #endregion
99  }
100}
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