| 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.Parameters;
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| 7 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 8 |
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| 9 | namespace HeuristicLab.Analysis.FitnessLandscape.Analysis {
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| 10 | [Item("InformationAnalysisCalculator", "Performs an information analysis on a quality trail as described in Vassilev et al. (2000) Evol Comput 8:31–60")]
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| 11 | [StorableClass]
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| 12 | public class InformationAnalysisCalculator : SingleSuccessorOperator {
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| 13 |
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| 14 | #region Parameter Properties
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| 15 | public LookupParameter<DataTable> QualityTrailParameter {
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| 16 | get { return (LookupParameter<DataTable>)Parameters["QualityTrail"]; }
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| 17 | }
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| 18 | public ValueLookupParameter<IntValue> NQuantilesParameter {
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| 19 | get { return (ValueLookupParameter<IntValue>)Parameters["NQuantiles"]; }
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| 20 | }
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| 21 | public LookupParameter<DoubleValue> InformationStabilityParameter {
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| 22 | get { return (LookupParameter<DoubleValue>)Parameters["InformationStability"]; }
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| 23 | }
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| 24 | public LookupParameter<IntValue> RegularityParameter {
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| 25 | get { return (LookupParameter<IntValue>)Parameters["Regularity"]; }
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| 26 | }
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| 27 | public LookupParameter<DoubleArray> InformationContentParameter {
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| 28 | get { return (LookupParameter<DoubleArray>)Parameters["InformationContent"]; }
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| 29 | }
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| 30 | public LookupParameter<DoubleArray> PartialInformationContentParameter {
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| 31 | get { return (LookupParameter<DoubleArray>)Parameters["PartialInformationContent"]; }
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| 32 | }
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| 33 | public LookupParameter<DoubleArray> DensityBasinInformationParameter {
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| 34 | get { return (LookupParameter<DoubleArray>)Parameters["DensityBasinInformation"]; }
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| 35 | }
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| 36 | public LookupParameter<DoubleArray> EpsilonQuantilesParameter {
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| 37 | get { return (LookupParameter<DoubleArray>)Parameters["EpsilonQuantiles"]; }
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| 38 | }
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| 39 | #endregion
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| 40 |
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| 41 | #region Constructors & Cloning
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| 42 | [StorableConstructor]
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| 43 | protected InformationAnalysisCalculator(bool deserializing) : base(deserializing) { }
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| 44 | public InformationAnalysisCalculator()
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| 45 | : base() {
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| 46 | Parameters.Add(new LookupParameter<DataTable>("QualityTrail", "Historical quality trail of a walk over a fitness landscape."));
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| 47 | Parameters.Add(new ValueLookupParameter<IntValue>("NQuantiles", "Number of epsilon quantiles to calculate information analysis."));
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| 48 | Parameters.Add(new LookupParameter<DoubleValue>("InformationStability"));
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| 49 | Parameters.Add(new LookupParameter<IntValue>("Regularity"));
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| 50 | Parameters.Add(new LookupParameter<DoubleArray>("InformationContent"));
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| 51 | Parameters.Add(new LookupParameter<DoubleArray>("PartialInformationContent"));
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| 52 | Parameters.Add(new LookupParameter<DoubleArray>("DensityBasinInformation"));
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| 53 | Parameters.Add(new LookupParameter<DoubleArray>("EpsilonQuantiles", "Considered values of epsilon, selected as quantiles of actual quality differences"));
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| 54 | }
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| 55 | protected InformationAnalysisCalculator(InformationAnalysisCalculator original, Cloner cloner)
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| 56 | : base(original, cloner) {
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| 57 | }
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| 58 | public override IDeepCloneable Clone(Cloner cloner) {
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| 59 | return new InformationAnalysisCalculator(this, cloner);
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| 60 | }
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| 61 | #endregion
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| 62 |
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| 63 | public override IOperation Apply() {
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| 64 | var analysis = new InformationAnalysis(
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| 65 | QualityTrailParameter.ActualValue.Rows.First().Values,
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| 66 | NQuantilesParameter.ActualValue.Value);
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| 67 | RegularityParameter.ActualValue = new IntValue(analysis.Regularity);
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| 68 | InformationStabilityParameter.ActualValue = new DoubleValue(analysis.InformationStability);
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| 69 | InformationContentParameter.ActualValue = new DoubleArray(analysis.InformationContent.ToArray());
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| 70 | PartialInformationContentParameter.ActualValue = new DoubleArray(analysis.PartialInformationContent.ToArray());
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| 71 | DensityBasinInformationParameter.ActualValue = new DoubleArray(analysis.DensityBasinInformation.ToArray());
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| 72 | EpsilonQuantilesParameter.ActualValue = new DoubleArray(analysis.QualityDelta.ToArray());
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| 73 | return base.Apply();
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| 74 | }
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| 75 | }
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| 76 | }
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