Free cookie consent management tool by TermsFeed Policy Generator

source: branches/2521_ProblemRefactoring/HeuristicLab.Encodings.PermutationEncoding/3.3/PermutationProblem.cs @ 17745

Last change on this file since 17745 was 17745, checked in by mkommend, 4 years ago

#2971: Added first draft of results implementation and problem adaptation.

File size: 5.0 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.Optimization.Operators;
33using HeuristicLab.Parameters;
34
35namespace HeuristicLab.Encodings.PermutationEncoding {
36  [StorableType("aceff7a2-0666-4055-b698-6ea3628713b6")]
37  public abstract class PermutationProblem : SingleObjectiveProblem<PermutationEncoding, Permutation> {
38    [Storable] protected ReferenceParameter<IntValue> DimensionRefParameter { get; private set; }
39    [Storable] protected ReferenceParameter<EnumValue<PermutationTypes>> PermutationTypeRefParameter { get; private set; }
40
41    public int Dimension {
42      get { return DimensionRefParameter.Value.Value; }
43      set { DimensionRefParameter.Value.Value = value; }
44    }
45
46    public PermutationTypes Type {
47      get { return PermutationTypeRefParameter.Value.Value; }
48      set { PermutationTypeRefParameter.Value.Value = value; }
49    }
50
51    [StorableConstructor]
52    protected PermutationProblem(StorableConstructorFlag _) : base(_) { }
53    [StorableHook(HookType.AfterDeserialization)]
54    private void AfterDeserialization() {
55      RegisterEventHandlers();
56    }
57
58    protected PermutationProblem(PermutationProblem original, Cloner cloner)
59      : base(original, cloner) {
60      DimensionRefParameter = cloner.Clone(original.DimensionRefParameter);
61      PermutationTypeRefParameter = cloner.Clone(original.PermutationTypeRefParameter);
62      RegisterEventHandlers();
63    }
64
65    protected PermutationProblem() : this(new PermutationEncoding() { Length = 10, Type = PermutationTypes.Absolute }) { }
66    protected PermutationProblem(PermutationEncoding encoding) : base(encoding) {
67      EncodingParameter.ReadOnly = true;
68      EvaluatorParameter.ReadOnly = true;
69      Parameters.Add(DimensionRefParameter = new ReferenceParameter<IntValue>("Dimension", "The dimension of the permutation problem.", Encoding.LengthParameter));
70      Parameters.Add(PermutationTypeRefParameter = new ReferenceParameter<EnumValue<PermutationTypes>>("Type", "The type of the permutation.", Encoding.PermutationTypeParameter));
71
72      Operators.Add(new HammingSimilarityCalculator());
73      // TODO: These should be added in the SingleObjectiveProblem base class (if they were accessible from there)
74      Operators.Add(new QualitySimilarityCalculator());
75      Operators.Add(new PopulationSimilarityAnalyzer(Operators.OfType<ISolutionSimilarityCalculator>()));
76
77      Parameterize();
78      RegisterEventHandlers();
79    }
80
81    public override void Analyze(ISingleObjectiveSolutionContext<Permutation>[] solutionContexts, IRandom random) {
82      base.Analyze(solutionContexts, random);
83
84      //TODO reimplement code below using results directly                                                                       solutionContexts
85      //var best = GetBestSolution(permutations, qualities);
86      //results.AddOrUpdateResult("Best Solution", (IItem)best.Item1.Clone());
87    }
88
89    protected override sealed void OnEvaluatorChanged() {
90      throw new InvalidOperationException("Evaluator may not change!");
91    }
92
93    protected override sealed void OnEncodingChanged() {
94      throw new InvalidOperationException("Encoding may not change!");
95    }
96
97    protected override void ParameterizeOperators() {
98      base.ParameterizeOperators();
99      Parameterize();
100    }
101
102    private void Parameterize() {
103      // TODO: this is done in base class as well (but operators are added at this level of the hierarchy)
104      foreach (var similarityCalculator in Operators.OfType<ISolutionSimilarityCalculator>()) {
105        similarityCalculator.SolutionVariableName = Encoding.Name;
106        similarityCalculator.QualityVariableName = Evaluator.QualityParameter.ActualName;
107      }
108    }
109
110    private void RegisterEventHandlers() {
111      IntValueParameterChangeHandler.Create(DimensionRefParameter, DimensionOnChanged);
112      EnumValueParameterChangeHandler<PermutationTypes>.Create(PermutationTypeRefParameter, TypeOnChanged);
113    }
114
115    protected virtual void DimensionOnChanged() { }
116
117    protected virtual void TypeOnChanged() { }
118  }
119}
Note: See TracBrowser for help on using the repository browser.