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source: branches/2457_ExpertSystem/HeuristicLab.Analysis.FitnessLandscape/3.3/ProblemInstanceAnalysis/QAPPRProblemInstanceAnalyzer.cs @ 18242

Last change on this file since 18242 was 16958, checked in by abeham, 6 years ago

#2457: adapted to trunk

File size: 2.3 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2017 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 HEAL.Attic;
24using HeuristicLab.Common;
25using HeuristicLab.Core;
26using HeuristicLab.Data;
27using HeuristicLab.Encodings.PermutationEncoding;
28
29namespace HeuristicLab.Analysis.FitnessLandscape {
30  [Item("QAP Path-Relinking Problem Instance Analyzer", "")]
31  [StorableType("7A17AAA9-3687-412F-B80F-5517CC2FFE02")]
32  public sealed class QAPPRProblemInstanceAnalyzer : PrProblemInstanceAnalyzer<Permutation> {
33
34    [StorableConstructor]
35    private QAPPRProblemInstanceAnalyzer(StorableConstructorFlag _) : base(_) { }
36    private QAPPRProblemInstanceAnalyzer(QAPPRProblemInstanceAnalyzer original, Cloner cloner) : base(original, cloner) { }
37    public QAPPRProblemInstanceAnalyzer() { }
38
39    public override IDeepCloneable Clone(Cloner cloner) {
40      return new QAPPRProblemInstanceAnalyzer(this, cloner);
41    }
42
43    protected override DoubleArray GetCharacteristics() {
44      var paths = PathsParameter.ActualValue;
45      if (paths == null || paths.IsEmpty) return null;
46      var trajectories = paths.Paths.ToList();
47      var length = trajectories[0].First().Item1.Length;
48      trajectories = paths.Paths.Where(x => x.Count > 0.75 * length).ToList();
49      if (trajectories.Count == 0) return null;
50
51      var result = CurveAnalysis<Permutation>.GetCharacteristics(trajectories, (left, right) => (1.0 - HammingSimilarityCalculator.CalculateSimilarity(left, right)) * left.Length);
52      return new DoubleArray(result.GetValues().ToArray());
53    }
54  }
55}
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