[5293] | 1 | using System.Linq;
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| 2 | using HeuristicLab.Common;
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| 3 | using HeuristicLab.Core;
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| 4 | using HeuristicLab.Data;
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| 5 | using HeuristicLab.Operators;
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| 6 | using HeuristicLab.Optimization;
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| 7 | using HeuristicLab.Parameters;
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| 8 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 9 | using System.Collections.Generic;
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| 10 | using System;
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| 11 |
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| 12 | namespace HeuristicLab.Problems.MetaOptimization {
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| 13 | /// <summary>
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| 14 | /// TODO
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| 15 | /// </summary>
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| 16 | [Item("ReferenceQualityAnalyzer", "")]
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| 17 | [StorableClass]
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| 18 | public sealed class ReferenceQualityAnalyzer : SingleSuccessorOperator, IAnalyzer {
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| 19 |
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| 20 | public ValueLookupParameter<ResultCollection> ResultsParameter {
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| 21 | get { return (ValueLookupParameter<ResultCollection>)Parameters["Results"]; }
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| 22 | }
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| 23 | public ScopeTreeLookupParameter<ParameterConfigurationTree> ParameterConfigurationParameter {
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| 24 | get { return (ScopeTreeLookupParameter<ParameterConfigurationTree>)Parameters["ParameterConfigurationTree"]; }
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| 25 | }
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| 26 | public ScopeTreeLookupParameter<DoubleValue> QualityParameter {
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| 27 | get { return (ScopeTreeLookupParameter<DoubleValue>)Parameters["Quality"]; }
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| 28 | }
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| 29 | public LookupParameter<DoubleArray> ProblemQualityReferenceParameter {
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| 30 | get { return (LookupParameter<DoubleArray>)Parameters["ProblemQualityReferences"]; }
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| 31 | }
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| 32 | public LookupParameter<ConstrainedItemList<ISingleObjectiveProblem>> ProblemsParameter {
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| 33 | get { return (LookupParameter<ConstrainedItemList<ISingleObjectiveProblem>>)Parameters[MetaOptimizationProblem.ProblemsParameterName]; }
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| 34 | }
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| 35 |
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| 36 | public ReferenceQualityAnalyzer()
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| 37 | : base() {
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| 38 | Parameters.Add(new ScopeTreeLookupParameter<DoubleValue>("Quality", ""));
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| 39 | Parameters.Add(new ValueLookupParameter<ResultCollection>("Results", ""));
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| 40 | Parameters.Add(new ScopeTreeLookupParameter<ParameterConfigurationTree>("ParameterConfigurationTree", ""));
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| 41 | Parameters.Add(new LookupParameter<DoubleArray>("ProblemQualityReferences", ""));
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| 42 | Parameters.Add(new LookupParameter<ConstrainedItemList<ISingleObjectiveProblem>>(MetaOptimizationProblem.ProblemsParameterName, ""));
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| 43 | }
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| 44 |
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| 45 | [StorableConstructor]
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| 46 | private ReferenceQualityAnalyzer(bool deserializing) : base(deserializing) { }
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| 47 | private ReferenceQualityAnalyzer(ReferenceQualityAnalyzer original, Cloner cloner) : base(original, cloner) { }
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| 48 | public override IDeepCloneable Clone(Cloner cloner) {
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| 49 | return new ReferenceQualityAnalyzer(this, cloner);
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| 50 | }
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| 51 |
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| 52 | public override IOperation Apply() {
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| 53 | ResultCollection results = ResultsParameter.ActualValue;
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| 54 | ItemArray<ParameterConfigurationTree> solutions = ParameterConfigurationParameter.ActualValue;
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| 55 | ItemArray<DoubleValue> qualities = QualityParameter.ActualValue;
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| 56 |
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| 57 | if (ProblemQualityReferenceParameter.ActualValue == null) {
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| 58 | DoubleArray referenceQualities = CalculateReferenceQualities(solutions);
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| 59 | ProblemQualityReferenceParameter.ActualValue = referenceQualities;
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| 60 | NormalizePopulation(solutions, qualities, referenceQualities);
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| 61 | results.Add(new Result("ProblemsAverageQualityReferences", referenceQualities));
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| 62 | }
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| 63 |
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| 64 | return base.Apply();
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| 65 | }
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| 66 |
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| 67 | private DoubleArray CalculateReferenceQualities(ItemArray<ParameterConfigurationTree> solutions) {
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| 68 | DoubleArray referenceQualities = new DoubleArray(ProblemsParameter.ActualValue.Count);
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| 69 | for (int pi = 0; pi < ProblemsParameter.ActualValue.Count; pi++) {
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| 70 | referenceQualities[pi] = solutions.Select(x => x.AverageQualities[pi]).Min(); // todo: respect minimization / maximization
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| 71 | }
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| 72 | return referenceQualities;
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| 73 | }
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| 74 |
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| 75 | private void NormalizePopulation(ItemArray<ParameterConfigurationTree> solutions, ItemArray<DoubleValue> qualities, DoubleArray referenceQualities) {
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| 76 | for (int i = 0; i < solutions.Length; i++) {
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| 77 | qualities[i].Value = ParameterConfigurationEvaluator.NormalizeQualities(solutions[i], referenceQualities.ToArray());
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| 78 | }
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| 79 | }
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| 80 | }
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| 81 | }
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