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source: stable/HeuristicLab.Algorithms.ALPS/3.3/ReseedingController.cs @ 17234

Last change on this file since 17234 was 17181, checked in by swagner, 5 years ago

#2875: Merged r17180 from trunk to stable

File size: 3.1 KB
RevLine 
[13095]1#region License Information
2/* HeuristicLab
[17181]3 * Copyright (C) Heuristic and Evolutionary Algorithms Laboratory (HEAL)
[13095]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.Operators;
26using HeuristicLab.Parameters;
[17097]27using HEAL.Attic;
[13095]28
29namespace HeuristicLab.Algorithms.ALPS {
[13111]30  [Item("ReseedingController", "An operator that controls if reseeding is needed.")]
[17097]31  [StorableType("67294ABE-C118-41F0-B736-0576F30F664F")]
[13111]32  public sealed class ReseedingController : SingleSuccessorOperator {
[13127]33    public ILookupParameter<IntValue> GenerationsParameter {
[13095]34      get { return (ILookupParameter<IntValue>)Parameters["Generations"]; }
35    }
[13127]36    public ILookupParameter<IntValue> AgeGapParameter {
[13095]37      get { return (ILookupParameter<IntValue>)Parameters["AgeGap"]; }
38    }
[13111]39    public OperatorParameter FirstLayerOperatorParameter {
40      get { return (OperatorParameter)Parameters["FirstLayerOperator"]; }
41    }
[13095]42
[13111]43    public IOperator FirstLayerOperator {
44      get { return FirstLayerOperatorParameter.Value; }
45      set { FirstLayerOperatorParameter.Value = value; }
[13095]46    }
47
48    [StorableConstructor]
[17097]49    private ReseedingController(StorableConstructorFlag _) : base(_) { }
[13095]50
[13111]51    private ReseedingController(ReseedingController original, Cloner cloner)
[13095]52      : base(original, cloner) {
53    }
54    public override IDeepCloneable Clone(Cloner cloner) {
[13111]55      return new ReseedingController(this, cloner);
[13095]56    }
57
[13111]58    public ReseedingController()
[13095]59      : base() {
[13127]60      Parameters.Add(new LookupParameter<IntValue>("Generations", "The current number of generations."));
61      Parameters.Add(new ValueLookupParameter<IntValue>("AgeGap", "The frequency of reseeding the lowest layer and scaling factor for the age-limits for the layers."));
[13206]62      Parameters.Add(new OperatorParameter("FirstLayerOperator", "The operator that is performed on the first layer if reseeding is required."));
[13095]63    }
64
65    public override IOperation Apply() {
66      int generations = GenerationsParameter.ActualValue.Value;
67      int ageGap = AgeGapParameter.ActualValue.Value;
68
69      var next = new OperationCollection(base.Apply());
[13110]70      if (generations % ageGap == 0) {
[13095]71        var layerZeroScope = ExecutionContext.Scope.SubScopes[0];
[13111]72        if (FirstLayerOperator != null)
73          next.Insert(0, ExecutionContext.CreateChildOperation(FirstLayerOperator, layerZeroScope));
[13095]74      }
75      return next;
76    }
77  }
78}
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