1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2013 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;
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23 | using System.Linq;
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24 | using System.Threading;
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25 | using HeuristicLab.Algorithms.GeneticAlgorithm;
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26 | using HeuristicLab.Common;
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27 | using HeuristicLab.Data;
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28 | using HeuristicLab.Persistence.Default.Xml;
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29 | using Microsoft.VisualStudio.TestTools.UnitTesting;
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30 | using HeuristicLab.Algorithms.DataAnalysis;
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31 | using HeuristicLab.Problems.DataAnalysis;
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32 | using System.Collections.Generic;
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33 | using HeuristicLab.Core;
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34 |
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35 | namespace HeuristicLab_33.Tests {
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36 | [TestClass]
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37 | public class SupportVectorMachineTest {
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38 | public SupportVectorMachineTest() { }
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39 |
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40 | private TestContext testContextInstance;
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41 |
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42 | /// <summary>
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43 | ///Gets or sets the test context which provides
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44 | ///information about and functionality for the current test run.
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45 | ///</summary>
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46 | public TestContext TestContext {
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47 | get {
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48 | return testContextInstance;
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49 | }
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50 | set {
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51 | testContextInstance = value;
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52 | }
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53 | }
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54 |
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55 | private EventWaitHandle trigger = new AutoResetEvent(false);
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56 | private Exception ex;
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57 |
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58 | [TestMethod]
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59 | public void SupportVectorMachinePerformanceTest() {
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60 | ex = null;
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61 |
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62 | var cv = new CrossValidation();
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63 | cv.Algorithm = new SupportVectorRegression();
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64 | var rand = new HeuristicLab.Random.MersenneTwister();
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65 | double[,] data = GenerateData(1000, rand);
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66 | List<string> variables = new List<string>() { "x1", "x2", "x3", "x4", "x5", "x6", "x7", "x8", "x9", "x10", "y" };
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67 | Dataset ds = new Dataset(variables, data);
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68 | cv.Problem.ProblemDataParameter.ActualValue = new RegressionProblemData(ds, variables.Take(10), variables.Last());
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69 | cv.Folds.Value = 5;
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70 | cv.SamplesStart.Value = 0;
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71 | cv.SamplesEnd.Value = 999;
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72 |
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73 | cv.ExceptionOccurred += new EventHandler<EventArgs<Exception>>(cv_ExceptionOccurred);
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74 | cv.Stopped += new EventHandler(cv_Stopped);
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75 |
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76 | cv.Prepare();
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77 | cv.Start();
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78 | trigger.WaitOne();
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79 | if (ex != null) throw ex;
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80 |
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81 | TestContext.WriteLine("Runtime: {0}", cv.ExecutionTime.ToString());
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82 |
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83 | }
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84 |
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85 | // poly-10: y = x1 x2 + x3 x4 + x5 x6 + x1 x7 x9 + x3 x6 x10
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86 | private double[,] GenerateData(int n, IRandom random) {
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87 | double[,] data = new double[n, 11];
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88 | for (int i = 0; i < n; i++) {
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89 | for (int c = 0; c < 10; c++) {
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90 | data[i, c] = random.NextDouble() * 2.0 - 1.0;
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91 | }
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92 | data[i, 10] =
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93 | data[i, 0] * data[i, 1] +
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94 | data[i, 2] * data[i, 3] +
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95 | data[i, 4] * data[i, 5] +
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96 | data[i, 0] * data[i, 6] * data[i, 8] +
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97 | data[i, 2] * data[i, 5] * data[i, 9];
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98 | }
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99 | return data;
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100 | }
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101 |
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102 | private void cv_ExceptionOccurred(object sender, EventArgs<Exception> e) {
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103 | ex = e.Value;
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104 | }
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105 |
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106 | private void cv_Stopped(object sender, EventArgs e) {
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107 | trigger.Set();
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108 | }
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109 | }
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110 | }
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