| 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2011 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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| 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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| 22 | using System.Collections.Generic;
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| 23 | using System.Linq;
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| 24 | using HeuristicLab.Common;
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| 25 | using HeuristicLab.Core;
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| 26 | using HeuristicLab.Data;
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| 27 | using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding;
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| 28 | using HeuristicLab.Operators;
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| 29 | using HeuristicLab.Optimization;
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| 30 | using HeuristicLab.Parameters;
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| 31 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 32 | using HeuristicLab.PluginInfrastructure;
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| 33 | using HeuristicLab.Problems.DataAnalysis.Evaluators;
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| 34 | using HeuristicLab.Problems.DataAnalysis.Symbolic;
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| 35 |
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| 36 | namespace HeuristicLab.Problems.DataAnalysis.Regression.Symbolic.Analyzers {
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| 37 | /// <summary>
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| 38 | /// An operator that analyzes the training best scaled symbolic regression solution.
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| 39 | /// </summary>
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| 40 | [Item("TrainingBestScaledSymbolicRegressionSolutionAnalyzer", "An operator that analyzes the training best scaled symbolic regression solution.")]
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| 41 | [StorableClass]
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| 42 | [NonDiscoverableType]
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| 43 | public sealed class TrainingBestScaledSymbolicRegressionSolutionAnalyzer : SingleSuccessorOperator, ISymbolicRegressionAnalyzer {
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| 44 | private const string ApplyLinearScalingParameterName = "ApplyLinearScaling";
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| 45 | private const string SymbolicExpressionTreeParameterName = "SymbolicExpressionTree";
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| 46 | private const string QualityParameterName = "Quality";
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| 47 | private const string MaximizationParameterName = "Maximization";
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| 48 | private const string CalculateSolutionComplexityParameterName = "CalculateSolutionComplexity";
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| 49 | private const string CalculateSolutionAccuracyParameterName = "CalculateSolutionAccuracy";
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| 50 | private const string SymbolicExpressionTreeInterpreterParameterName = "SymbolicExpressionTreeInterpreter";
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| 51 | private const string ProblemDataParameterName = "DataAnalysisProblemData";
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| 52 | private const string UpperEstimationLimitParameterName = "UpperEstimationLimit";
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| 53 | private const string LowerEstimationLimitParameterName = "LowerEstimationLimit";
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| 54 | private const string BestSolutionParameterName = "Best training solution";
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| 55 | private const string BestSolutionQualityParameterName = "Best training solution quality";
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| 56 | private const string BestSolutionLengthParameterName = "Best training solution length";
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| 57 | private const string BestSolutionHeightParameterName = "Best training solution height";
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| 58 | private const string BestSolutionVariablesParameterName = "Best training solution variables";
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| 59 | private const string BestSolutionTrainingRSquaredParameterName = "Best training solution R² (training)";
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| 60 | private const string BestSolutionTestRSquaredParameterName = "Best training solution R² (test)";
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| 61 | private const string BestSolutionTrainingMseParameterName = "Best training solution mean squared error (training)";
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| 62 | private const string BestSolutionTestMseParameterName = "Best training solution mean squared error (test)";
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| 63 | private const string BestSolutionTrainingRelativeErrorParameterName = "Best training solution relative error (training)";
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| 64 | private const string BestSolutionTestRelativeErrorParameterName = "Best training solution relative error (test)";
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| 65 | private const string ResultsParameterName = "Results";
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| 66 |
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| 67 | #region parameter properties
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| 68 | public ScopeTreeLookupParameter<SymbolicExpressionTree> SymbolicExpressionTreeParameter {
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| 69 | get { return (ScopeTreeLookupParameter<SymbolicExpressionTree>)Parameters[SymbolicExpressionTreeParameterName]; }
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| 70 | }
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| 71 | public ScopeTreeLookupParameter<DoubleValue> QualityParameter {
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| 72 | get { return (ScopeTreeLookupParameter<DoubleValue>)Parameters[QualityParameterName]; }
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| 73 | }
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| 74 | public ILookupParameter<BoolValue> MaximizationParameter {
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| 75 | get { return (ILookupParameter<BoolValue>)Parameters[MaximizationParameterName]; }
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| 76 | }
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| 77 | public IValueParameter<BoolValue> CalculateSolutionComplexityParameter {
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| 78 | get { return (IValueParameter<BoolValue>)Parameters[CalculateSolutionComplexityParameterName]; }
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| 79 | }
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| 80 | public IValueParameter<BoolValue> CalculateSolutionAccuracyParameter {
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| 81 | get { return (IValueParameter<BoolValue>)Parameters[CalculateSolutionAccuracyParameterName]; }
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| 82 | }
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| 83 | public IValueLookupParameter<ISymbolicExpressionTreeInterpreter> SymbolicExpressionTreeInterpreterParameter {
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| 84 | get { return (IValueLookupParameter<ISymbolicExpressionTreeInterpreter>)Parameters[SymbolicExpressionTreeInterpreterParameterName]; }
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| 85 | }
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| 86 | public IValueLookupParameter<DataAnalysisProblemData> ProblemDataParameter {
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| 87 | get { return (IValueLookupParameter<DataAnalysisProblemData>)Parameters[ProblemDataParameterName]; }
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| 88 | }
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| 89 | public IValueLookupParameter<DoubleValue> UpperEstimationLimitParameter {
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| 90 | get { return (IValueLookupParameter<DoubleValue>)Parameters[UpperEstimationLimitParameterName]; }
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| 91 | }
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| 92 | public IValueLookupParameter<DoubleValue> LowerEstimationLimitParameter {
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| 93 | get { return (IValueLookupParameter<DoubleValue>)Parameters[LowerEstimationLimitParameterName]; }
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| 94 | }
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| 95 |
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| 96 | public ILookupParameter<SymbolicRegressionSolution> BestSolutionParameter {
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| 97 | get { return (ILookupParameter<SymbolicRegressionSolution>)Parameters[BestSolutionParameterName]; }
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| 98 | }
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| 99 | public ILookupParameter<DoubleValue> BestSolutionQualityParameter {
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| 100 | get { return (ILookupParameter<DoubleValue>)Parameters[BestSolutionQualityParameterName]; }
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| 101 | }
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| 102 | public ILookupParameter<IntValue> BestSolutionLengthParameter {
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| 103 | get { return (ILookupParameter<IntValue>)Parameters[BestSolutionLengthParameterName]; }
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| 104 | }
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| 105 | public ILookupParameter<IntValue> BestSolutionHeightParameter {
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| 106 | get { return (ILookupParameter<IntValue>)Parameters[BestSolutionHeightParameterName]; }
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| 107 | }
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| 108 | public ILookupParameter<IntValue> BestSolutionVariablesParameter {
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| 109 | get { return (ILookupParameter<IntValue>)Parameters[BestSolutionVariablesParameterName]; }
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| 110 | }
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| 111 | public ILookupParameter<DoubleValue> BestSolutionTrainingRSquaredParameter {
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| 112 | get { return (ILookupParameter<DoubleValue>)Parameters[BestSolutionTrainingRSquaredParameterName]; }
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| 113 | }
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| 114 | public ILookupParameter<DoubleValue> BestSolutionTestRSquaredParameter {
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| 115 | get { return (ILookupParameter<DoubleValue>)Parameters[BestSolutionTestRSquaredParameterName]; }
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| 116 | }
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| 117 | public ILookupParameter<DoubleValue> BestSolutionTrainingMseParameter {
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| 118 | get { return (ILookupParameter<DoubleValue>)Parameters[BestSolutionTrainingMseParameterName]; }
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| 119 | }
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| 120 | public ILookupParameter<DoubleValue> BestSolutionTestMseParameter {
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| 121 | get { return (ILookupParameter<DoubleValue>)Parameters[BestSolutionTestMseParameterName]; }
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| 122 | }
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| 123 | public ILookupParameter<DoubleValue> BestSolutionTrainingRelativeErrorParameter {
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| 124 | get { return (ILookupParameter<DoubleValue>)Parameters[BestSolutionTrainingRelativeErrorParameterName]; }
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| 125 | }
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| 126 | public ILookupParameter<DoubleValue> BestSolutionTestRelativeErrorParameter {
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| 127 | get { return (ILookupParameter<DoubleValue>)Parameters[BestSolutionTestRelativeErrorParameterName]; }
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| 128 | }
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| 129 | public ILookupParameter<ResultCollection> ResultsParameter {
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| 130 | get { return (ILookupParameter<ResultCollection>)Parameters[ResultsParameterName]; }
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| 131 | }
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| 132 | public IValueLookupParameter<BoolValue> ApplyLinearScalingParameter {
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| 133 | get { return (IValueLookupParameter<BoolValue>)Parameters[ApplyLinearScalingParameterName]; }
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| 134 | }
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| 135 | #endregion
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| 136 | #region properties
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| 137 | public ItemArray<SymbolicExpressionTree> SymbolicExpressionTree {
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| 138 | get { return SymbolicExpressionTreeParameter.ActualValue; }
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| 139 | }
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| 140 | public ItemArray<DoubleValue> Quality {
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| 141 | get { return QualityParameter.ActualValue; }
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| 142 | }
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| 143 | public BoolValue Maximization {
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| 144 | get { return MaximizationParameter.ActualValue; }
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| 145 | }
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| 146 | public BoolValue CalculateSolutionComplexity {
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| 147 | get { return CalculateSolutionComplexityParameter.Value; }
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| 148 | set { CalculateSolutionComplexityParameter.Value = value; }
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| 149 | }
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| 150 | public BoolValue CalculateSolutionAccuracy {
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| 151 | get { return CalculateSolutionAccuracyParameter.Value; }
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| 152 | set { CalculateSolutionAccuracyParameter.Value = value; }
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| 153 | }
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| 154 | public ISymbolicExpressionTreeInterpreter SymbolicExpressionTreeInterpreter {
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| 155 | get { return SymbolicExpressionTreeInterpreterParameter.ActualValue; }
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| 156 | }
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| 157 | public DataAnalysisProblemData ProblemData {
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| 158 | get { return ProblemDataParameter.ActualValue; }
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| 159 | }
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| 160 | public DoubleValue UpperEstimationLimit {
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| 161 | get { return UpperEstimationLimitParameter.ActualValue; }
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| 162 | }
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| 163 | public DoubleValue LowerEstimationLimit {
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| 164 | get { return LowerEstimationLimitParameter.ActualValue; }
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| 165 | }
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| 166 | public ResultCollection Results {
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| 167 | get { return ResultsParameter.ActualValue; }
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| 168 | }
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| 169 | public SymbolicRegressionSolution BestSolution {
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| 170 | get { return BestSolutionParameter.ActualValue; }
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| 171 | set { BestSolutionParameter.ActualValue = value; }
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| 172 | }
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| 173 | public DoubleValue BestSolutionQuality {
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| 174 | get { return BestSolutionQualityParameter.ActualValue; }
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| 175 | set { BestSolutionQualityParameter.ActualValue = value; }
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| 176 | }
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| 177 | public IntValue BestSolutionLength {
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| 178 | get { return BestSolutionLengthParameter.ActualValue; }
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| 179 | set { BestSolutionLengthParameter.ActualValue = value; }
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| 180 | }
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| 181 | public IntValue BestSolutionHeight {
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| 182 | get { return BestSolutionHeightParameter.ActualValue; }
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| 183 | set { BestSolutionHeightParameter.ActualValue = value; }
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| 184 | }
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| 185 | public IntValue BestSolutionVariables {
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| 186 | get { return BestSolutionVariablesParameter.ActualValue; }
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| 187 | set { BestSolutionVariablesParameter.ActualValue = value; }
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| 188 | }
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| 189 | public DoubleValue BestSolutionTrainingRSquared {
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| 190 | get { return BestSolutionTrainingRSquaredParameter.ActualValue; }
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| 191 | set { BestSolutionTrainingRSquaredParameter.ActualValue = value; }
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| 192 | }
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| 193 | public DoubleValue BestSolutionTestRSquared {
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| 194 | get { return BestSolutionTestRSquaredParameter.ActualValue; }
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| 195 | set { BestSolutionTestRSquaredParameter.ActualValue = value; }
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| 196 | }
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| 197 | public DoubleValue BestSolutionTrainingMse {
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| 198 | get { return BestSolutionTrainingMseParameter.ActualValue; }
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| 199 | set { BestSolutionTrainingMseParameter.ActualValue = value; }
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| 200 | }
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| 201 | public DoubleValue BestSolutionTestMse {
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| 202 | get { return BestSolutionTestMseParameter.ActualValue; }
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| 203 | set { BestSolutionTestMseParameter.ActualValue = value; }
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| 204 | }
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| 205 | public DoubleValue BestSolutionTrainingRelativeError {
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| 206 | get { return BestSolutionTrainingRelativeErrorParameter.ActualValue; }
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| 207 | set { BestSolutionTrainingRelativeErrorParameter.ActualValue = value; }
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| 208 | }
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| 209 | public DoubleValue BestSolutionTestRelativeError {
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| 210 | get { return BestSolutionTestRelativeErrorParameter.ActualValue; }
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| 211 | set { BestSolutionTestRelativeErrorParameter.ActualValue = value; }
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| 212 | }
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| 213 | public BoolValue ApplyLinearScaling {
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| 214 | get { return ApplyLinearScalingParameter.ActualValue; }
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| 215 | set { ApplyLinearScalingParameter.ActualValue = value; }
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| 216 | }
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| 217 | #endregion
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| 218 |
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| 219 | [StorableConstructor]
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| 220 | private TrainingBestScaledSymbolicRegressionSolutionAnalyzer(bool deserializing) : base(deserializing) { }
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| 221 | private TrainingBestScaledSymbolicRegressionSolutionAnalyzer(TrainingBestScaledSymbolicRegressionSolutionAnalyzer original, Cloner cloner) : base(original, cloner) { }
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| 222 | public TrainingBestScaledSymbolicRegressionSolutionAnalyzer()
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| 223 | : base() {
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| 224 | Parameters.Add(new ValueLookupParameter<BoolValue>(ApplyLinearScalingParameterName, "The switch determines if the best solution should be linearly scaled on the whole training set.", new BoolValue(true)));
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| 225 | Parameters.Add(new LookupParameter<BoolValue>(MaximizationParameterName, "The direction of optimization."));
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| 226 | Parameters.Add(new ScopeTreeLookupParameter<SymbolicExpressionTree>(SymbolicExpressionTreeParameterName, "The symbolic expression trees to analyze."));
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| 227 | Parameters.Add(new ScopeTreeLookupParameter<DoubleValue>(QualityParameterName, "The qualities of the symbolic expression trees to analyze."));
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| 228 | Parameters.Add(new ValueParameter<BoolValue>(CalculateSolutionComplexityParameterName, "Determines if the length and height of the training best solution should be calculated.", new BoolValue(true)));
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| 229 | Parameters.Add(new ValueParameter<BoolValue>(CalculateSolutionAccuracyParameterName, "Determines if the accuracy of the training best solution on the training and test set should be calculated.", new BoolValue(true)));
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| 230 | Parameters.Add(new ValueLookupParameter<ISymbolicExpressionTreeInterpreter>(SymbolicExpressionTreeInterpreterParameterName, "The interpreter that should be used for the analysis of symbolic expression trees."));
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| 231 | Parameters.Add(new ValueLookupParameter<DataAnalysisProblemData>(ProblemDataParameterName, "The problem data for which the symbolic expression tree is a solution."));
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| 232 | Parameters.Add(new ValueLookupParameter<DoubleValue>(UpperEstimationLimitParameterName, "The upper estimation limit that was set for the evaluation of the symbolic expression trees."));
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| 233 | Parameters.Add(new ValueLookupParameter<DoubleValue>(LowerEstimationLimitParameterName, "The lower estimation limit that was set for the evaluation of the symbolic expression trees."));
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| 234 | Parameters.Add(new LookupParameter<SymbolicRegressionSolution>(BestSolutionParameterName, "The best symbolic regression solution."));
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| 235 | Parameters.Add(new LookupParameter<DoubleValue>(BestSolutionQualityParameterName, "The quality of the best symbolic regression solution."));
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| 236 | Parameters.Add(new LookupParameter<IntValue>(BestSolutionLengthParameterName, "The length of the best symbolic regression solution."));
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| 237 | Parameters.Add(new LookupParameter<IntValue>(BestSolutionHeightParameterName, "The height of the best symbolic regression solution."));
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| 238 | Parameters.Add(new LookupParameter<IntValue>(BestSolutionVariablesParameterName, "The number of variables used by the best symbolic regression solution."));
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| 239 | Parameters.Add(new LookupParameter<DoubleValue>(BestSolutionTrainingRSquaredParameterName, "The R² value on the training set of the best symbolic regression solution."));
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| 240 | Parameters.Add(new LookupParameter<DoubleValue>(BestSolutionTestRSquaredParameterName, "The R² value on the test set of the best symbolic regression solution."));
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| 241 | Parameters.Add(new LookupParameter<DoubleValue>(BestSolutionTrainingMseParameterName, "The mean squared error on the training set of the best symbolic regression solution."));
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| 242 | Parameters.Add(new LookupParameter<DoubleValue>(BestSolutionTestMseParameterName, "The mean squared error value on the test set of the best symbolic regression solution."));
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| 243 | Parameters.Add(new LookupParameter<DoubleValue>(BestSolutionTrainingRelativeErrorParameterName, "The relative error on the training set of the best symbolic regression solution."));
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| 244 | Parameters.Add(new LookupParameter<DoubleValue>(BestSolutionTestRelativeErrorParameterName, "The relative error value on the test set of the best symbolic regression solution."));
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| 245 | Parameters.Add(new LookupParameter<ResultCollection>(ResultsParameterName, "The result collection where the best symbolic regression solution should be stored."));
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| 246 | }
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| 247 |
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| 248 | public override IDeepCloneable Clone(Cloner cloner) {
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| 249 | return new TrainingBestScaledSymbolicRegressionSolutionAnalyzer(this, cloner);
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| 250 | }
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| 251 |
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| 252 | [StorableHook(HookType.AfterDeserialization)]
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| 253 | private void AfterDeserialization() {
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| 254 | if (!Parameters.ContainsKey(ApplyLinearScalingParameterName)) {
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| 255 | Parameters.Add(new ValueLookupParameter<BoolValue>(ApplyLinearScalingParameterName, "The switch determines if the best solution should be linearly scaled on the whole training set.", new BoolValue(true)));
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| 256 | }
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| 257 | }
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| 258 |
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| 259 | public override IOperation Apply() {
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| 260 | #region find best tree
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| 261 | double bestQuality = Maximization.Value ? double.NegativeInfinity : double.PositiveInfinity;
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| 262 | SymbolicExpressionTree bestTree = null;
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| 263 | SymbolicExpressionTree[] tree = SymbolicExpressionTree.ToArray();
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| 264 | double[] quality = Quality.Select(x => x.Value).ToArray();
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| 265 | for (int i = 0; i < tree.Length; i++) {
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| 266 | if ((Maximization.Value && quality[i] > bestQuality) ||
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| 267 | (!Maximization.Value && quality[i] < bestQuality)) {
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| 268 | bestQuality = quality[i];
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| 269 | bestTree = tree[i];
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| 270 | }
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| 271 | }
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| 272 | #endregion
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| 273 |
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| 274 | #region update best solution
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| 275 | // if the best tree is better than the current best solution => update
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| 276 | bool newBest =
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| 277 | BestSolutionQuality == null ||
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| 278 | (Maximization.Value && bestQuality > BestSolutionQuality.Value) ||
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| 279 | (!Maximization.Value && bestQuality < BestSolutionQuality.Value);
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| 280 | if (newBest) {
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| 281 | double upperEstimationLimit = UpperEstimationLimit != null ? UpperEstimationLimit.Value : double.PositiveInfinity;
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| 282 | double lowerEstimationLimit = LowerEstimationLimit != null ? LowerEstimationLimit.Value : double.NegativeInfinity;
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| 283 | string targetVariable = ProblemData.TargetVariable.Value;
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| 284 |
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| 285 | if (ApplyLinearScaling.Value) {
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| 286 | // calculate scaling parameters and only for the best tree using the full training set
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| 287 | double alpha, beta;
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| 288 | SymbolicRegressionScaledMeanSquaredErrorEvaluator.Calculate(SymbolicExpressionTreeInterpreter, bestTree,
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| 289 | lowerEstimationLimit, upperEstimationLimit,
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| 290 | ProblemData.Dataset, targetVariable,
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| 291 | ProblemData.TrainingIndizes, out beta, out alpha);
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| 292 |
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| 293 | // scale tree for solution
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| 294 | bestTree = SymbolicRegressionSolutionLinearScaler.Scale(bestTree, alpha, beta);
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| 295 | }
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| 296 | var model = new SymbolicRegressionModel((ISymbolicExpressionTreeInterpreter)SymbolicExpressionTreeInterpreter.Clone(),
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| 297 | bestTree);
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| 298 | var solution = new SymbolicRegressionSolution((DataAnalysisProblemData)ProblemData.Clone(), model, lowerEstimationLimit, upperEstimationLimit);
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| 299 | solution.Name = BestSolutionParameterName;
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| 300 | solution.Description = "Best solution on training partition found over the whole run.";
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| 301 |
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| 302 | BestSolution = solution;
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| 303 | BestSolutionQuality = new DoubleValue(bestQuality);
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| 304 |
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| 305 | if (CalculateSolutionComplexity.Value) {
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| 306 | BestSolutionLength = new IntValue(solution.Model.SymbolicExpressionTree.Size);
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| 307 | BestSolutionHeight = new IntValue(solution.Model.SymbolicExpressionTree.Height);
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| 308 | BestSolutionVariables = new IntValue(solution.Model.InputVariables.Count());
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| 309 | if (!Results.ContainsKey(BestSolutionLengthParameterName)) {
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| 310 | Results.Add(new Result(BestSolutionLengthParameterName, "Length of the best solution on the training set.", BestSolutionLength));
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| 311 | Results.Add(new Result(BestSolutionHeightParameterName, "Height of the best solution on the training set.", BestSolutionHeight));
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| 312 | Results.Add(new Result(BestSolutionVariablesParameterName, "Number of variables used by the best solution on the training set.", BestSolutionVariables));
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| 313 | } else {
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| 314 | Results[BestSolutionLengthParameterName].Value = BestSolutionLength;
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| 315 | Results[BestSolutionHeightParameterName].Value = BestSolutionHeight;
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| 316 | Results[BestSolutionVariablesParameterName].Value = BestSolutionVariables;
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| 317 | }
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| 318 | }
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| 319 |
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| 320 | if (CalculateSolutionAccuracy.Value) {
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| 321 | #region update R2,MSE, Rel Error
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| 322 | IEnumerable<double> trainingValues = ProblemData.Dataset.GetEnumeratedVariableValues(ProblemData.TargetVariable.Value, ProblemData.TrainingIndizes);
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| 323 | IEnumerable<double> testValues = ProblemData.Dataset.GetEnumeratedVariableValues(ProblemData.TargetVariable.Value, ProblemData.TestIndizes);
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| 324 | OnlineMeanSquaredErrorEvaluator mseEvaluator = new OnlineMeanSquaredErrorEvaluator();
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| 325 | OnlineMeanAbsolutePercentageErrorEvaluator relErrorEvaluator = new OnlineMeanAbsolutePercentageErrorEvaluator();
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| 326 | OnlinePearsonsRSquaredEvaluator r2Evaluator = new OnlinePearsonsRSquaredEvaluator();
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| 327 |
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| 328 | #region training
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| 329 | var originalEnumerator = trainingValues.GetEnumerator();
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| 330 | var estimatedEnumerator = solution.EstimatedTrainingValues.GetEnumerator();
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| 331 | while (originalEnumerator.MoveNext() & estimatedEnumerator.MoveNext()) {
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| 332 | mseEvaluator.Add(originalEnumerator.Current, estimatedEnumerator.Current);
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| 333 | r2Evaluator.Add(originalEnumerator.Current, estimatedEnumerator.Current);
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| 334 | relErrorEvaluator.Add(originalEnumerator.Current, estimatedEnumerator.Current);
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| 335 | }
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| 336 | double trainingR2 = r2Evaluator.RSquared;
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| 337 | double trainingMse = mseEvaluator.MeanSquaredError;
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| 338 | double trainingRelError = relErrorEvaluator.MeanAbsolutePercentageError;
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| 339 | #endregion
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| 340 |
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| 341 | mseEvaluator.Reset();
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| 342 | relErrorEvaluator.Reset();
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| 343 | r2Evaluator.Reset();
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| 344 |
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| 345 | #region test
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| 346 | originalEnumerator = testValues.GetEnumerator();
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| 347 | estimatedEnumerator = solution.EstimatedTestValues.GetEnumerator();
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| 348 | while (originalEnumerator.MoveNext() & estimatedEnumerator.MoveNext()) {
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| 349 | mseEvaluator.Add(originalEnumerator.Current, estimatedEnumerator.Current);
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| 350 | r2Evaluator.Add(originalEnumerator.Current, estimatedEnumerator.Current);
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| 351 | relErrorEvaluator.Add(originalEnumerator.Current, estimatedEnumerator.Current);
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| 352 | }
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| 353 | double testR2 = r2Evaluator.RSquared;
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| 354 | double testMse = mseEvaluator.MeanSquaredError;
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| 355 | double testRelError = relErrorEvaluator.MeanAbsolutePercentageError;
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| 356 | #endregion
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| 357 | BestSolutionTrainingRSquared = new DoubleValue(trainingR2);
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| 358 | BestSolutionTestRSquared = new DoubleValue(testR2);
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| 359 | BestSolutionTrainingMse = new DoubleValue(trainingMse);
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| 360 | BestSolutionTestMse = new DoubleValue(testMse);
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| 361 | BestSolutionTrainingRelativeError = new DoubleValue(trainingRelError);
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| 362 | BestSolutionTestRelativeError = new DoubleValue(testRelError);
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| 363 |
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| 364 | if (!Results.ContainsKey(BestSolutionTrainingRSquaredParameterName)) {
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| 365 | Results.Add(new Result(BestSolutionTrainingRSquaredParameterName, BestSolutionTrainingRSquared));
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| 366 | Results.Add(new Result(BestSolutionTestRSquaredParameterName, BestSolutionTestRSquared));
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| 367 | Results.Add(new Result(BestSolutionTrainingMseParameterName, BestSolutionTrainingMse));
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| 368 | Results.Add(new Result(BestSolutionTestMseParameterName, BestSolutionTestMse));
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| 369 | Results.Add(new Result(BestSolutionTrainingRelativeErrorParameterName, BestSolutionTrainingRelativeError));
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| 370 | Results.Add(new Result(BestSolutionTestRelativeErrorParameterName, BestSolutionTestRelativeError));
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| 371 | } else {
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| 372 | Results[BestSolutionTrainingRSquaredParameterName].Value = BestSolutionTrainingRSquared;
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| 373 | Results[BestSolutionTestRSquaredParameterName].Value = BestSolutionTestRSquared;
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| 374 | Results[BestSolutionTrainingMseParameterName].Value = BestSolutionTrainingMse;
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| 375 | Results[BestSolutionTestMseParameterName].Value = BestSolutionTestMse;
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| 376 | Results[BestSolutionTrainingRelativeErrorParameterName].Value = BestSolutionTrainingRelativeError;
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| 377 | Results[BestSolutionTestRelativeErrorParameterName].Value = BestSolutionTestRelativeError;
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| 378 | }
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| 379 | #endregion
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| 380 | }
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| 381 |
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| 382 | if (!Results.ContainsKey(BestSolutionQualityParameterName)) {
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| 383 | Results.Add(new Result(BestSolutionQualityParameterName, BestSolutionQuality));
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| 384 | Results.Add(new Result(BestSolutionParameterName, BestSolution));
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| 385 | } else {
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| 386 | Results[BestSolutionQualityParameterName].Value = BestSolutionQuality;
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| 387 | Results[BestSolutionParameterName].Value = BestSolution;
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| 388 | }
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| 389 | }
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| 390 | #endregion
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| 391 | return base.Apply();
|
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| 392 | }
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| 393 | }
|
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| 394 | }
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