Changeset 15973 for branches/2522_RefactorPluginInfrastructure/HeuristicLab.Algorithms.DataAnalysis/3.4/SupportVectorMachine/SupportVectorMachineUtil.cs
- Timestamp:
- 06/28/18 11:13:37 (6 years ago)
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- branches/2522_RefactorPluginInfrastructure
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- 4 edited
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branches/2522_RefactorPluginInfrastructure
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branches/2522_RefactorPluginInfrastructure/HeuristicLab.Algorithms.DataAnalysis
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branches/2522_RefactorPluginInfrastructure/HeuristicLab.Algorithms.DataAnalysis/3.4
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/stable/HeuristicLab.Algorithms.DataAnalysis/3.4 merged eligible /trunk/HeuristicLab.Algorithms.DataAnalysis/3.4 merged eligible /branches/1721-RandomForestPersistence/HeuristicLab.Algorithms.DataAnalysis/3.4 10321-10322 /branches/Async/HeuristicLab.Algorithms.DataAnalysis/3.4 13329-15286 /branches/Benchmarking/sources/HeuristicLab.Algorithms.DataAnalysis/3.4 6917-7005 /branches/ClassificationModelComparison/HeuristicLab.Algorithms.DataAnalysis/3.4 9070-13099 /branches/CloningRefactoring/HeuristicLab.Algorithms.DataAnalysis/3.4 4656-4721 /branches/DataAnalysis Refactoring/HeuristicLab.Algorithms.DataAnalysis/3.4 5471-5808 /branches/DataAnalysis SolutionEnsembles/HeuristicLab.Algorithms.DataAnalysis/3.4 5815-6180 /branches/DataAnalysis/HeuristicLab.Algorithms.DataAnalysis/3.4 4458-4459,4462,4464 /branches/DataPreprocessing/HeuristicLab.Algorithms.DataAnalysis/3.4 10085-11101 /branches/GP.Grammar.Editor/HeuristicLab.Algorithms.DataAnalysis/3.4 6284-6795 /branches/GP.Symbols (TimeLag, Diff, Integral)/HeuristicLab.Algorithms.DataAnalysis/3.4 5060 /branches/HeuristicLab.DatasetRefactor/sources/HeuristicLab.Algorithms.DataAnalysis/3.4 11570-12508 /branches/HeuristicLab.Problems.Orienteering/HeuristicLab.Algorithms.DataAnalysis/3.4 11130-12721 /branches/HeuristicLab.RegressionSolutionGradientView/HeuristicLab.Algorithms.DataAnalysis/3.4 13819-14091 /branches/HeuristicLab.TimeSeries/HeuristicLab.Algorithms.DataAnalysis/3.4 8116-8789 /branches/LogResidualEvaluator/HeuristicLab.Algorithms.DataAnalysis/3.4 10202-10483 /branches/NET40/sources/HeuristicLab.Algorithms.DataAnalysis/3.4 5138-5162 /branches/ParallelEngine/HeuristicLab.Algorithms.DataAnalysis/3.4 5175-5192 /branches/ProblemInstancesRegressionAndClassification/HeuristicLab.Algorithms.DataAnalysis/3.4 7773-7810 /branches/QAPAlgorithms/HeuristicLab.Algorithms.DataAnalysis/3.4 6350-6627 /branches/Restructure trunk solution/HeuristicLab.Algorithms.DataAnalysis/3.4 6828 /branches/SpectralKernelForGaussianProcesses/HeuristicLab.Algorithms.DataAnalysis/3.4 10204-10479 /branches/SuccessProgressAnalysis/HeuristicLab.Algorithms.DataAnalysis/3.4 5370-5682 /branches/Trunk/HeuristicLab.Algorithms.DataAnalysis/3.4 6829-6865 /branches/VNS/HeuristicLab.Algorithms.DataAnalysis/3.4 5594-5752 /branches/Weighted TSNE/3.4 15451-15531 /branches/histogram/HeuristicLab.Algorithms.DataAnalysis/3.4 5959-6341 /branches/symbreg-factors-2650/HeuristicLab.Algorithms.DataAnalysis/3.4 14232-14825 /trunk/sources/HeuristicLab.Algorithms.DataAnalysis/3.4 13402-15674
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branches/2522_RefactorPluginInfrastructure/HeuristicLab.Algorithms.DataAnalysis/3.4/SupportVectorMachine/SupportVectorMachineUtil.cs
r12509 r15973 1 1 #region License Information 2 2 /* HeuristicLab 3 * Copyright (C) 2002-201 5Heuristic and Evolutionary Algorithms Laboratory (HEAL)3 * Copyright (C) 2002-2018 Heuristic and Evolutionary Algorithms Laboratory (HEAL) 4 4 * 5 5 * This file is part of HeuristicLab. … … 35 35 public class SupportVectorMachineUtil { 36 36 /// <summary> 37 /// Transforms <paramref name="problemData"/> into a data structure as needed by libSVM. 38 /// </summary> 39 /// <param name="problemData">The problem data to transform</param> 37 /// Transforms <paramref name="dataset"/> into a data structure as needed by libSVM. 38 /// </summary> 39 /// <param name="dataset">The source dataset</param> 40 /// <param name="targetVariable">The target variable</param> 41 /// <param name="inputVariables">The selected input variables to include in the svm_problem.</param> 40 42 /// <param name="rowIndices">The rows of the dataset that should be contained in the resulting SVM-problem</param> 41 43 /// <returns>A problem data type that can be used to train a support vector machine.</returns> 42 44 public static svm_problem CreateSvmProblem(IDataset dataset, string targetVariable, IEnumerable<string> inputVariables, IEnumerable<int> rowIndices) { 43 double[] targetVector = dataset.GetDoubleValues(targetVariable, rowIndices).ToArray(); 44 svm_node[][] nodes = new svm_node[targetVector.Length][]; 45 double[] targetVector ; 46 var nRows = rowIndices.Count(); 47 if (string.IsNullOrEmpty(targetVariable)) { 48 // if the target variable is not set (e.g. for prediction of a trained model) we just use a zero vector 49 targetVector = new double[nRows]; 50 } else { 51 targetVector = dataset.GetDoubleValues(targetVariable, rowIndices).ToArray(); 52 } 53 svm_node[][] nodes = new svm_node[nRows][]; 45 54 int maxNodeIndex = 0; 46 55 int svmProblemRowIndex = 0; … … 66 75 67 76 /// <summary> 77 /// Transforms <paramref name="dataset"/> into a data structure as needed by libSVM for prediction. 78 /// </summary> 79 /// <param name="dataset">The problem data to transform</param> 80 /// <param name="inputVariables">The selected input variables to include in the svm_problem.</param> 81 /// <param name="rowIndices">The rows of the dataset that should be contained in the resulting SVM-problem</param> 82 /// <returns>A problem data type that can be used for prediction with a trained support vector machine.</returns> 83 public static svm_problem CreateSvmProblem(IDataset dataset, IEnumerable<string> inputVariables, IEnumerable<int> rowIndices) { 84 // for prediction we don't need a target variable 85 return CreateSvmProblem(dataset, string.Empty, inputVariables, rowIndices); 86 } 87 88 /// <summary> 68 89 /// Instantiate and return a svm_parameter object with default values. 69 90 /// </summary>
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