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source: branches/HeuristicLab.EvolutionTracking/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Tracking/SymbolicDataAnalysisExpressionAfterManipulatorOperator.cs @ 12951

Last change on this file since 12951 was 12951, checked in by bburlacu, 9 years ago

#1772:

  • Slight refactor in QueryMatch.cs
  • Added a parameter to the genealogy analyzer for removing older generations from the graph (useful to conserve memory in experiments)
  • Updated wildcard nodes (added persistence & cloning)
  • Implemented diversification strategy based on schema frequencies & phenotypic similarity as a separate operator (for now keep also the analyzer)
  • Updated license headers
  • Added QueryMatch performance test (to be expanded)
File size: 2.6 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.Linq;
23using HeuristicLab.Common;
24using HeuristicLab.Core;
25using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding;
26using HeuristicLab.EvolutionTracking;
27using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
28
29namespace HeuristicLab.Problems.DataAnalysis.Symbolic {
30  [StorableClass]
31  [Item("SymbolicDataAnalysisExpressionAfterManipulatorOperator", "An operator that compares the mutation child with the parent and saves the modified fragment.")]
32  public class SymbolicDataAnalysisExpressionAfterManipulatorOperator : AfterManipulatorOperator<ISymbolicExpressionTree> {
33    public SymbolicDataAnalysisExpressionAfterManipulatorOperator() { }
34
35    protected SymbolicDataAnalysisExpressionAfterManipulatorOperator(SymbolicDataAnalysisExpressionAfterManipulatorOperator original, Cloner cloner)
36      : base(original, cloner) {
37    }
38
39    public override IDeepCloneable Clone(Cloner cloner) {
40      return new SymbolicDataAnalysisExpressionAfterManipulatorOperator(this, cloner);
41    }
42
43    [StorableConstructor]
44    protected SymbolicDataAnalysisExpressionAfterManipulatorOperator(bool deserializing) : base(deserializing) { }
45
46    public override IOperation Apply() {
47      var child = ChildParameter.ActualValue;
48      var childVertex = GenealogyGraph.GetByContent(child);
49      var parent = childVertex.Parents.First().Data;
50      var subtree = child.Difference(parent);
51      Fragment<ISymbolicExpressionTreeNode> fragment = null;
52      if (subtree != null) {
53        int index = child.IterateNodesPrefix().TakeWhile(node => node != subtree).Count();
54        fragment = new Fragment<ISymbolicExpressionTreeNode> { Root = subtree, Index1 = index, Index2 = index };
55      }
56      childVertex.InArcs.Last().Data = fragment;
57      return base.Apply();
58    }
59  }
60}
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