[17567] | 1 | #region License Information
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[11635] | 2 | /* HeuristicLab
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[17226] | 3 | * Copyright (C) Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[11635] | 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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[17695] | 22 | using System;
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[11996] | 23 | using System.Linq;
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[16814] | 24 | using HEAL.Attic;
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[16692] | 25 | using HeuristicLab.Analysis;
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[11635] | 26 | using HeuristicLab.Common;
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| 27 | using HeuristicLab.Core;
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[17544] | 28 | using HeuristicLab.Data;
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[11635] | 29 | using HeuristicLab.Optimization;
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[16692] | 30 | using HeuristicLab.Optimization.Operators;
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[17544] | 31 | using HeuristicLab.Parameters;
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[11635] | 32 |
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[16814] | 33 | namespace HeuristicLab.Encodings.BinaryVectorEncoding {
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[16723] | 34 | [StorableType("2F6FEB34-BD19-47AF-9484-7F48565C0C43")]
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[16814] | 35 | public abstract class BinaryVectorProblem : SingleObjectiveProblem<BinaryVectorEncoding, BinaryVector> {
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[17544] | 36 | [Storable] protected ReferenceParameter<IntValue> DimensionRefParameter { get; private set; }
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[17612] | 37 | [Storable] public IResult<ISingleObjectiveSolutionContext<BinaryVector>> BestSolutionResult { get; private set; }
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[17517] | 38 |
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[17544] | 39 | public int Dimension {
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[17567] | 40 | get { return DimensionRefParameter.Value.Value; }
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[17570] | 41 | protected set { DimensionRefParameter.Value.Value = value; }
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[11635] | 42 | }
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| 43 |
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[17747] | 44 | protected ISingleObjectiveSolutionContext<BinaryVector> BestSolution {
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| 45 | get => BestSolutionResult.Value;
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| 46 | set => BestSolutionResult.Value = value;
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| 47 | }
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| 48 |
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[11987] | 49 | [StorableConstructor]
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[16814] | 50 | protected BinaryVectorProblem(StorableConstructorFlag _) : base(_) { }
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[11990] | 51 | [StorableHook(HookType.AfterDeserialization)]
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| 52 | private void AfterDeserialization() {
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| 53 | RegisterEventHandlers();
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| 54 | }
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[11635] | 55 |
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[16814] | 56 | protected BinaryVectorProblem(BinaryVectorProblem original, Cloner cloner)
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[11990] | 57 | : base(original, cloner) {
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[17544] | 58 | DimensionRefParameter = cloner.Clone(original.DimensionRefParameter);
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[17612] | 59 | BestSolutionResult = cloner.Clone(original.BestSolutionResult);
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[11990] | 60 | RegisterEventHandlers();
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| 61 | }
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| 62 |
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[16948] | 63 | protected BinaryVectorProblem() : this(new BinaryVectorEncoding() { Length = 10 }) { }
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| 64 | protected BinaryVectorProblem(BinaryVectorEncoding encoding) : base(encoding) {
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| 65 | EncodingParameter.ReadOnly = true;
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[17695] | 66 | EvaluatorParameter.ReadOnly = true;
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[17544] | 67 | Parameters.Add(DimensionRefParameter = new ReferenceParameter<IntValue>("Dimension", "The dimension of the binary vector problem.", Encoding.LengthParameter));
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[17747] | 68 | Results.Add(BestSolutionResult = new Result<ISingleObjectiveSolutionContext<BinaryVector>>("Best Solution", "The best solution found so far."));
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[16814] | 69 |
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[16692] | 70 | Operators.Add(new HammingSimilarityCalculator());
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[17620] | 71 | // TODO: These should be added in the SingleObjectiveProblem base class (if they were accessible from there)
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[16692] | 72 | Operators.Add(new QualitySimilarityCalculator());
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| 73 | Operators.Add(new PopulationSimilarityAnalyzer(Operators.OfType<ISolutionSimilarityCalculator>()));
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[16814] | 74 |
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[16692] | 75 | Parameterize();
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[11990] | 76 | RegisterEventHandlers();
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| 77 | }
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| 78 |
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[17745] | 79 | public override void Analyze(ISingleObjectiveSolutionContext<BinaryVector>[] solutionContexts, IRandom random) {
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| 80 | base.Analyze(solutionContexts, random);
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[17522] | 81 | var best = GetBest(solutionContexts);
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[17612] | 82 | if (BestSolution == null || IsBetter(best, BestSolution))
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| 83 | BestSolution = best.Clone() as SingleObjectiveSolutionContext<BinaryVector>;
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[11996] | 84 | }
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[11990] | 85 |
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[17695] | 86 | protected override sealed void OnEvaluatorChanged() {
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| 87 | throw new InvalidOperationException("Evaluator may not change!");
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| 88 | }
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| 89 |
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| 90 | protected override sealed void OnEncodingChanged() {
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| 91 | throw new InvalidOperationException("Encoding may not change!");
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| 92 | }
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| 93 |
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[17620] | 94 | protected override void ParameterizeOperators() {
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| 95 | base.ParameterizeOperators();
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| 96 | Parameterize();
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| 97 | }
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| 98 |
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[16692] | 99 | private void Parameterize() {
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[17620] | 100 | // TODO: this is done in base class as well (but operators are added at this level of the hierarchy)
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[16692] | 101 | foreach (var similarityCalculator in Operators.OfType<ISolutionSimilarityCalculator>()) {
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[16814] | 102 | similarityCalculator.SolutionVariableName = Encoding.Name;
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[16692] | 103 | similarityCalculator.QualityVariableName = Evaluator.QualityParameter.ActualName;
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| 104 | }
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| 105 | }
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[11990] | 106 |
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| 107 | private void RegisterEventHandlers() {
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[17567] | 108 | IntValueParameterChangeHandler.Create(DimensionRefParameter, DimensionOnChanged);
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[11990] | 109 | }
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| 110 |
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[17544] | 111 | protected virtual void DimensionOnChanged() { }
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[11635] | 112 | }
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| 113 | }
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