[8578] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[9456] | 3 | * Copyright (C) 2002-2013 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[8578] | 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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[8880] | 22 | using System.Collections.Generic;
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[8578] | 23 | using System.ComponentModel;
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| 24 | using System.Linq;
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| 25 | using System.Windows.Forms;
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[8861] | 26 | using HeuristicLab.Data;
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[8578] | 27 | using HeuristicLab.MainForm;
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| 28 | using HeuristicLab.MainForm.WindowsForms;
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[8833] | 29 | using HeuristicLab.PluginInfrastructure;
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[10908] | 30 | using System;
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| 31 | using HeuristicLab.DataPreprocessing;
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[8578] | 32 |
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| 33 | namespace HeuristicLab.Problems.DataAnalysis.Views {
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[10908] | 34 | [View("Preprocessing Feature Correlation View")]
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| 35 | [Content(typeof(CorrelationMatrixContent), false)]
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| 36 | public partial class PreprocessingFeatureCorrelationView : AsynchronousContentView {
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[8880] | 37 | public const string ALLSAMPLES = "All Samples";
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| 38 | public const string TRAININGSAMPLES = "Training Samples";
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| 39 | public const string TESTSAMPLES = "Test Samples";
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| 40 |
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| 41 | public static readonly IList<string> Partitions = new List<string>() { ALLSAMPLES, TRAININGSAMPLES, TESTSAMPLES };
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| 42 |
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[8578] | 43 | protected FeatureCorrelationCalculator fcc;
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| 44 |
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[10908] | 45 | public new CorrelationMatrixContent Content
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| 46 | {
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| 47 | get { return (CorrelationMatrixContent) base.Content; }
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[8578] | 48 | set { base.Content = value; }
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| 49 | }
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| 50 |
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[10908] | 51 | private FeatureCorrelationCache correlationCache;
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| 52 |
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| 53 | public PreprocessingFeatureCorrelationView() {
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| 54 |
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| 55 | correlationCache = new FeatureCorrelationCache();
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[8578] | 56 | InitializeComponent();
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| 57 | fcc = new FeatureCorrelationCalculator();
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[8833] | 58 | var calculators = ApplicationManager.Manager.GetInstances<IDependencyCalculator>();
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| 59 | var calcList = calculators.OrderBy(c => c.Name).Select(c => new { Name = c.Name, Calculator = c }).ToList();
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[8880] | 60 | correlationCalcComboBox.ValueMember = "Calculator";
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| 61 | correlationCalcComboBox.DisplayMember = "Name";
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| 62 | correlationCalcComboBox.DataSource = calcList;
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| 63 | correlationCalcComboBox.SelectedItem = calcList.First(c => c.Calculator.GetType().Equals(typeof(PearsonsRDependenceCalculator)));
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| 64 | partitionComboBox.DataSource = Partitions;
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| 65 | partitionComboBox.SelectedItem = TRAININGSAMPLES;
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[8578] | 66 | }
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| 67 |
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[10934] | 68 |
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[8578] | 69 | protected override void RegisterContentEvents() {
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| 70 | base.RegisterContentEvents();
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[10934] | 71 | Content.PreprocessingData.Changed += Data_Changed;
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[8729] | 72 | fcc.ProgressCalculation += new FeatureCorrelationCalculator.ProgressCalculationHandler(Content_ProgressCalculation);
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| 73 | fcc.CorrelationCalculationFinished += new FeatureCorrelationCalculator.CorrelationCalculationFinishedHandler(Content_CorrelationCalculationFinished);
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[8578] | 74 | }
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| 75 |
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| 76 | protected override void DeregisterContentEvents() {
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[10934] | 77 | Content.PreprocessingData.Changed -= Data_Changed;
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[8880] | 78 | fcc.CorrelationCalculationFinished -= new FeatureCorrelationCalculator.CorrelationCalculationFinishedHandler(Content_CorrelationCalculationFinished);
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| 79 | fcc.ProgressCalculation -= new FeatureCorrelationCalculator.ProgressCalculationHandler(Content_ProgressCalculation);
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[8578] | 80 | base.DeregisterContentEvents();
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| 81 | }
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| 82 |
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[10934] | 83 | private void Data_Changed(object sender, DataPreprocessingChangedEventArgs e) {
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| 84 | OnContentChanged();
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| 85 | }
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| 86 |
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[8578] | 87 | protected override void OnContentChanged() {
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| 88 | base.OnContentChanged();
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[8833] | 89 | fcc.TryCancelCalculation();
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[8578] | 90 | if (Content != null) {
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[10908] | 91 | fcc.ProblemData = Content.ProblemData;
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[8578] | 92 | CalculateCorrelation();
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| 93 | } else {
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[8861] | 94 | dataView.Maximum = 0;
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| 95 | dataView.Minimum = 0;
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[8833] | 96 | dataView.Content = null;
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| 97 | dataView.ResetVisibility();
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[8578] | 98 | }
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| 99 | }
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| 100 |
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[8833] | 101 | protected virtual bool[] SetInitialVariableVisibility() {
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[10908] | 102 | bool[] initialVisibility = new bool[Content.ProblemData.Dataset.DoubleVariables.Count()];
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[8689] | 103 | int i = 0;
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[10908] | 104 | foreach (var variable in Content.ProblemData.Dataset.DoubleVariables) {
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| 105 | initialVisibility[i] = Content.ProblemData.AllowedInputVariables.Contains(variable);
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[8689] | 106 | i++;
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| 107 | }
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| 108 | return initialVisibility;
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| 109 | }
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| 110 |
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[8578] | 111 | protected void CorrelationMeasureComboBox_SelectedChangeCommitted(object sender, System.EventArgs e) {
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| 112 | CalculateCorrelation();
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| 113 | }
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| 114 | protected void PartitionComboBox_SelectedChangeCommitted(object sender, System.EventArgs e) {
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| 115 | CalculateCorrelation();
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| 116 | }
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| 117 |
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[10908] | 118 | protected void CalculateCorrelation() {
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| 119 | if (correlationCalcComboBox.SelectedItem == null) return;
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| 120 | if (partitionComboBox.SelectedItem == null) return;
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[8578] | 121 |
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[10908] | 122 | IDependencyCalculator calc = (IDependencyCalculator)correlationCalcComboBox.SelectedValue;
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| 123 | string partition = (string)partitionComboBox.SelectedValue;
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| 124 | dataView.Enabled = false;
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| 125 | double[,] corr = correlationCache.GetCorrelation(calc, partition);
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| 126 | if (corr == null) {
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| 127 | fcc.CalculateElements(calc, partition);
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| 128 | } else {
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| 129 | fcc.TryCancelCalculation();
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| 130 | var correlation = new DoubleMatrix(corr, Content.ProblemData.Dataset.DoubleVariables, Content.ProblemData.Dataset.DoubleVariables);
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| 131 | UpdateDataView(correlation);
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| 132 | }
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| 133 | }
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| 134 |
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| 135 | protected void Content_CorrelationCalculationFinished(object sender, FeatureCorrelationCalculator.CorrelationCalculationFinishedArgs e) {
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| 136 | if (InvokeRequired) {
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| 137 | Invoke(new FeatureCorrelationCalculator.CorrelationCalculationFinishedHandler(Content_CorrelationCalculationFinished), sender, e);
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| 138 | return;
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| 139 | }
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| 140 | correlationCache.SetCorrelation(e.Calculcator, e.Partition, e.Correlation);
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| 141 | var correlation = new DoubleMatrix(e.Correlation, Content.ProblemData.Dataset.DoubleVariables, Content.ProblemData.Dataset.DoubleVariables);
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| 142 | UpdateDataView(correlation);
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| 143 | }
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| 144 |
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[8874] | 145 | protected void UpdateDataView(DoubleMatrix correlation) {
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[8880] | 146 | IDependencyCalculator calc = (IDependencyCalculator)correlationCalcComboBox.SelectedValue;
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[8861] | 147 | maximumLabel.Text = calc.Maximum.ToString();
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| 148 | minimumLabel.Text = calc.Minimum.ToString();
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[8578] | 149 |
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[8874] | 150 | correlation.SortableView = true;
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[8861] | 151 | dataView.Maximum = calc.Maximum;
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| 152 | dataView.Minimum = calc.Minimum;
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[8874] | 153 | dataView.Content = correlation;
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[8833] | 154 | dataView.Enabled = true;
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[8578] | 155 | }
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| 156 |
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| 157 | protected void Content_ProgressCalculation(object sender, ProgressChangedEventArgs e) {
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[8881] | 158 | if (!progressPanel.Visible && e.ProgressPercentage != progressBar.Maximum) {
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| 159 | progressPanel.Show();
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| 160 | } else if (e.ProgressPercentage == progressBar.Maximum) {
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| 161 | progressPanel.Hide();
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[8578] | 162 | }
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[8881] | 163 | progressBar.Value = e.ProgressPercentage;
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[8578] | 164 | }
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[10908] | 165 |
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| 166 | [NonDiscoverableType]
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| 167 | private class FeatureCorrelationCache : Object {
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| 168 | private Dictionary<Tuple<IDependencyCalculator, string>, double[,]> correlationsCache;
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| 169 |
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| 170 | public FeatureCorrelationCache()
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| 171 | : base() {
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| 172 | InitializeCaches();
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| 173 | }
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| 174 |
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| 175 | private void InitializeCaches() {
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| 176 | correlationsCache = new Dictionary<Tuple<IDependencyCalculator, string>, double[,]>();
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| 177 | }
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| 178 |
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| 179 | public void Reset() {
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| 180 | InitializeCaches();
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| 181 | }
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| 182 |
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| 183 | public double[,] GetCorrelation(IDependencyCalculator calc, string partition) {
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| 184 | double[,] corr;
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| 185 | var key = new Tuple<IDependencyCalculator, string>(calc, partition);
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| 186 | correlationsCache.TryGetValue(key, out corr);
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| 187 | return corr;
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| 188 | }
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| 189 |
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| 190 | public void SetCorrelation(IDependencyCalculator calc, string partition, double[,] correlation) {
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| 191 | var key = new Tuple<IDependencyCalculator, string>(calc, partition);
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| 192 | correlationsCache[key] = correlation;
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| 193 | }
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| 194 | }
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[8578] | 195 | }
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| 196 | } |
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