source: branches/2839_HiveProjectManagement/HeuristicLab.Analysis/3.3/QualityAnalysis/QualityPerEvaluationsAnalyzer.cs @ 16057

Last change on this file since 16057 was 16057, checked in by jkarder, 15 months ago

#2839:

File size: 5.2 KB
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1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2018 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;
23using System.Linq;
24using HeuristicLab.Common;
25using HeuristicLab.Core;
26using HeuristicLab.Data;
27using HeuristicLab.Operators;
28using HeuristicLab.Optimization;
29using HeuristicLab.Parameters;
30using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
31
32namespace HeuristicLab.Analysis {
33  [Item("QualityPerEvaluationsAnalyzer", @"Creates a plot of the solution quality with respect to the number of evaluated solutions.")]
34  [StorableClass]
35  public class QualityPerEvaluationsAnalyzer : SingleSuccessorOperator, IAnalyzer, ISingleObjectiveOperator {
36    public virtual bool EnabledByDefault {
37      get { return false; }
38    }
39
40    public ILookupParameter<DoubleValue> BestQualityParameter {
41      get { return (ILookupParameter<DoubleValue>)Parameters["BestQuality"]; }
42    }
43    public ILookupParameter<IntValue> EvaluatedSolutionsParameter {
44      get { return (ILookupParameter<IntValue>)Parameters["EvaluatedSolutions"]; }
45    }
46    public ILookupParameter<IntValue> EvaluatedMovesParameter {
47      get { return (ILookupParameter<IntValue>)Parameters["EvaluatedMoves"]; }
48    }
49    public IValueLookupParameter<DoubleValue> MoveCostPerSolutionParameter {
50      get { return (IValueLookupParameter<DoubleValue>)Parameters["MoveCostPerSolution"]; }
51    }
52    public IResultParameter<IndexedDataTable<double>> QualityPerEvaluationsParameter {
53      get { return (IResultParameter<IndexedDataTable<double>>)Parameters["QualityPerEvaluations"]; }
54    }
55
56    [StorableConstructor]
57    protected QualityPerEvaluationsAnalyzer(bool deserializing) : base(deserializing) { }
58    protected QualityPerEvaluationsAnalyzer(QualityPerEvaluationsAnalyzer original, Cloner cloner) : base(original, cloner) { }
59    public QualityPerEvaluationsAnalyzer()
60      : base() {
61      Parameters.Add(new LookupParameter<DoubleValue>("BestQuality", "The quality value that should be compared."));
62      Parameters.Add(new LookupParameter<IntValue>("EvaluatedSolutions", "The number of evaluated solutions."));
63      Parameters.Add(new LookupParameter<IntValue>("EvaluatedMoves", "The number of evaluated moves."));
64      Parameters.Add(new ValueLookupParameter<DoubleValue>("MoveCostPerSolution", "The cost to evaluate a move as a ratio to the cost of evaluating a solution.", new DoubleValue(1)));
65      Parameters.Add(new ResultParameter<IndexedDataTable<double>>("QualityPerEvaluations", "Data table containing the first hitting graph with evaluations as the x-axis."));
66      QualityPerEvaluationsParameter.DefaultValue = new IndexedDataTable<double>("Quality per Evaluations") {
67        VisualProperties = {
68          XAxisTitle = "Evaluations",
69          YAxisTitle = "Quality"
70        },
71        Rows = { new IndexedDataRow<double>("First-hit Graph") { VisualProperties = {
72          ChartType = DataRowVisualProperties.DataRowChartType.StepLine,
73          LineWidth = 2
74        } } }
75      };
76    }
77
78    public override IDeepCloneable Clone(Cloner cloner) {
79      return new QualityPerEvaluationsAnalyzer(this, cloner);
80    }
81
82    public override IOperation Apply() {
83      var bestQuality = BestQualityParameter.ActualValue.Value;
84      var evalSols = EvaluatedSolutionsParameter.ActualValue;
85      var evalMoves = EvaluatedMovesParameter.ActualValue;
86      var evaluations = 0.0;
87      if (evalSols != null) evaluations += evalSols.Value;
88      if (evalMoves != null) evaluations += evalMoves.Value * MoveCostPerSolutionParameter.ActualValue.Value;
89
90      if (evaluations > 0) {
91        var dataTable = QualityPerEvaluationsParameter.ActualValue;
92        var values = dataTable.Rows["First-hit Graph"].Values;
93
94        var newEntry = Tuple.Create(evaluations, bestQuality);
95
96        if (values.Count == 0) {
97          values.Add(newEntry); // record the first data
98          values.Add(Tuple.Create(evaluations, bestQuality)); // last entry records max number of evaluations
99          return base.Apply();
100        }
101
102        var improvement = values.Last().Item2 != bestQuality;
103        if (improvement) {
104          values[values.Count - 1] = newEntry; // record the improvement
105          values.Add(Tuple.Create(evaluations, bestQuality)); // last entry records max number of evaluations
106        } else {
107          values[values.Count - 1] = Tuple.Create(evaluations, bestQuality); // the last entry is updated
108        }
109      }
110      return base.Apply();
111    }
112  }
113}
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