source: branches/HeuristicLab.Problems.MultiObjectiveTestFunctions/HeuristicLab.Problems.MultiObjectiveTestFunctions/3.3/Analyzers/CrowdingAnalyzer.cs @ 14085

Last change on this file since 14085 was 14085, checked in by mkommend, 6 years ago

#1087: Further refactoring of testfunction problem and analyzers.

File size: 2.7 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2016 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.Data;
26using HeuristicLab.Optimization;
27using HeuristicLab.Parameters;
28using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
29
30namespace HeuristicLab.Problems.MultiObjectiveTestFunctions {
31  [StorableClass]
32  [Item("CrowdingAnalyzer", "The mean crowding distance for each point of the Front (see Multi-Objective Performance Metrics - Shodhganga for more information)")]
33  public class CrowdingAnalyzer : MOTFAnalyzer {
34
35    public ILookupParameter<DoubleMatrix> BoundsParameter {
36      get { return (ILookupParameter<DoubleMatrix>)Parameters["Bounds"]; }
37    }
38
39    [StorableConstructor]
40    protected CrowdingAnalyzer(bool deserializing) : base(deserializing) { }
41    public CrowdingAnalyzer(CrowdingAnalyzer original, Cloner cloner)
42      : base(original, cloner) {
43    }
44    public override IDeepCloneable Clone(Cloner cloner) {
45      return new CrowdingAnalyzer(this, cloner);
46    }
47
48    public CrowdingAnalyzer() {
49      Parameters.Add(new LookupParameter<DoubleMatrix>("Bounds",
50        "The bounds of the solution given as either one line for all variables or a line for each variable. The first column specifies lower bound, the second upper bound."));
51    }
52
53    public override IOperation Apply() {
54      var results = ResultsParameter.ActualValue;
55      var qualities = QualitiesParameter.ActualValue;
56      var bounds = BoundsParameter.ActualValue;
57
58      if (!results.ContainsKey("Crowding")) results.Add(new Result("Crowding", new DoubleValue()));
59      var resultValue = (DoubleValue)results["Crowding"].Value;
60
61      var crowdingDistance = Crowding.Calculate(qualities.Select(x => x.ToArray()), bounds.CloneAsMatrix());
62      resultValue.Value = crowdingDistance;
63
64      return base.Apply();
65    }
66
67  }
68}
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