Free cookie consent management tool by TermsFeed Policy Generator

source: branches/2521_ProblemRefactoring/HeuristicLab.Encodings.RealVectorEncoding/3.3/RealVectorMultiObjectiveProblem.cs

Last change on this file was 17747, checked in by abeham, 4 years ago

#2521: worked on refactoring

  • add results to problem base classes
  • fix external evaluation problem
  • Add result descriptions
File size: 5.1 KB
Line 
1#region License Information
2
3/* HeuristicLab
4 * Copyright (C) 2002-2019 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
5 *
6 * This file is part of HeuristicLab.
7 *
8 * HeuristicLab is free software: you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation, either version 3 of the License, or
11 * (at your option) any later version.
12 *
13 * HeuristicLab is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
20 */
21
22#endregion
23
24using System;
25using System.Linq;
26using HEAL.Attic;
27using HeuristicLab.Analysis;
28using HeuristicLab.Common;
29using HeuristicLab.Core;
30using HeuristicLab.Data;
31using HeuristicLab.Optimization;
32using HeuristicLab.Parameters;
33
34namespace HeuristicLab.Encodings.RealVectorEncoding {
35  [StorableType("135697c1-1b2b-46b6-a518-1c6efae09475")]
36  public abstract class RealVectorMultiObjectiveProblem : MultiObjectiveProblem<RealVectorEncoding, RealVector> {
37    [Storable] protected ReferenceParameter<IntValue> DimensionRefParameter { get; private set; }
38    [Storable] protected ReferenceParameter<DoubleMatrix> BoundsRefParameter { get; private set; }
39    [Storable] public IResult<ParetoFrontScatterPlot<RealVector>> BestParetoFrontResult { get; private set; }
40
41    public int Dimension {
42      get { return DimensionRefParameter.Value.Value; }
43      set { DimensionRefParameter.Value.Value = value; }
44    }
45
46    public DoubleMatrix Bounds {
47      get { return BoundsRefParameter.Value; }
48      set { BoundsRefParameter.Value = value; }
49    }
50
51    protected ParetoFrontScatterPlot<RealVector> BestParetoFront {
52      get => BestParetoFrontResult.Value;
53      set => BestParetoFrontResult.Value = value;
54    }
55
56    [StorableConstructor]
57    protected RealVectorMultiObjectiveProblem(StorableConstructorFlag _) : base(_) { }
58    [StorableHook(HookType.AfterDeserialization)]
59    private void AfterDeserialization() {
60      RegisterEventHandlers();
61    }
62
63    protected RealVectorMultiObjectiveProblem(RealVectorMultiObjectiveProblem original, Cloner cloner)
64      : base(original, cloner) {
65      DimensionRefParameter = cloner.Clone(original.DimensionRefParameter);
66      BoundsRefParameter = cloner.Clone(original.BoundsRefParameter);
67      BestParetoFrontResult = cloner.Clone(original.BestParetoFrontResult);
68      RegisterEventHandlers();
69    }
70
71    protected RealVectorMultiObjectiveProblem() : this(new RealVectorEncoding() { Length = 10 }) { }
72    protected RealVectorMultiObjectiveProblem(RealVectorEncoding encoding) : base(encoding) {
73      EncodingParameter.ReadOnly = true;
74      EvaluatorParameter.ReadOnly = true;
75      Parameters.Add(DimensionRefParameter = new ReferenceParameter<IntValue>("Dimension", "The dimension of the real vector problem.", Encoding.LengthParameter));
76      Parameters.Add(BoundsRefParameter = new ReferenceParameter<DoubleMatrix>("Bounds", "The bounding box of the values.", Encoding.BoundsParameter));
77      Results.Add(BestParetoFrontResult = new Result<ParetoFrontScatterPlot<RealVector>>("Best Pareto Front", "The best Pareto front found so far."));
78
79      Operators.Add(new HammingSimilarityCalculator());
80      Operators.Add(new PopulationSimilarityAnalyzer(Operators.OfType<ISolutionSimilarityCalculator>()));
81
82      Parameterize();
83      RegisterEventHandlers();
84    }
85
86    public override void Analyze(RealVector[] individuals, double[][] qualities, ResultCollection results, IRandom random) {
87      base.Analyze(individuals, qualities, results, random);
88
89      var fronts = DominationCalculator.CalculateAllParetoFrontsIndices(individuals, qualities, Maximization);
90      var plot = new ParetoFrontScatterPlot<RealVector>(fronts, individuals, qualities, Objectives, BestKnownFront);
91
92      BestParetoFront = plot;
93    }
94
95    protected override sealed void OnEvaluatorChanged() {
96      throw new InvalidOperationException("Evaluator may not change!");
97    }
98
99    protected override sealed void OnEncodingChanged() {
100      throw new InvalidOperationException("Encoding may not change!");
101    }
102
103    protected override void ParameterizeOperators() {
104      base.ParameterizeOperators();
105      Parameterize();
106    }
107
108    private void Parameterize() {
109      foreach (var similarityCalculator in Operators.OfType<ISolutionSimilarityCalculator>()) {
110        similarityCalculator.SolutionVariableName = Encoding.Name;
111        similarityCalculator.QualityVariableName = Evaluator.QualitiesParameter.ActualName;
112      }
113    }
114
115    private void RegisterEventHandlers() {
116      IntValueParameterChangeHandler.Create(DimensionRefParameter, DimensionOnChanged);
117      DoubleMatrixParameterChangeHandler.Create(BoundsRefParameter, BoundsOnChanged);
118    }
119
120    protected virtual void DimensionOnChanged() { }
121
122    protected virtual void BoundsOnChanged() { }
123  }
124}
Note: See TracBrowser for help on using the repository browser.