1 | package de.ugoe.cs.quest.usageprofiles;
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2 |
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3 | import java.util.ArrayList;
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4 | import java.util.Collection;
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5 | import java.util.List;
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6 | import java.util.Random;
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7 | import org.junit.*;
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8 |
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9 | import de.ugoe.cs.quest.eventcore.Event;
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10 | import de.ugoe.cs.quest.eventcore.StringEventType;
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11 | import de.ugoe.cs.quest.usageprofiles.FirstOrderMarkovModel;
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12 | import de.ugoe.cs.quest.usageprofiles.FirstOrderMarkovModel.MarkovEdge;
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13 | import static org.junit.Assert.*;
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14 |
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15 | /**
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16 | * The class <code>FirstOrderMarkovModelTest</code> contains tests for the class
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17 | * <code>{@link FirstOrderMarkovModel}</code>.
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18 | *
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19 | * @author Steffen Herbold
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20 | * @version 1.0
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21 | */
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22 | public class FirstOrderMarkovModelTest {
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23 |
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24 | Collection<List<Event>> sequences;
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25 |
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26 | @Test
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27 | public void testFirstOrderMarkovModel_1() throws Exception {
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28 | Random r = new Random();
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29 |
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30 | FirstOrderMarkovModel result = new FirstOrderMarkovModel(r);
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31 |
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32 | assertNotNull(result);
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33 | assertEquals(r, result.r);
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34 | assertEquals(2, result.trieOrder);
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35 | }
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36 |
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37 | @Test(expected = java.security.InvalidParameterException.class)
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38 | public void testFirstOrderMarkovModel_2() throws Exception {
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39 | new FirstOrderMarkovModel(null);
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40 | }
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41 |
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42 | @Test
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43 | public void testCalcEntropy() throws Exception {
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44 | Random r = new Random();
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45 | FirstOrderMarkovModel fixture = new FirstOrderMarkovModel(r);
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46 | fixture.train(sequences);
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47 |
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48 | double result = fixture.calcEntropy();
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49 |
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50 | assertEquals(0.7392d, result, 0.0001);
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51 | }
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52 |
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53 | @Test
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54 | public void testMarkovEdgeMarkovEdge_1() throws Exception {
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55 | double weight = 0.2d;
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56 |
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57 | MarkovEdge result = new MarkovEdge(weight);
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58 |
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59 | assertNotNull(result);
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60 | assertEquals(weight, result.weight, 0.0001);
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61 | }
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62 |
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63 | @Test
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64 | public void testMarkovEdgeToString_1() throws Exception {
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65 | double weight = 0.2d;
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66 | MarkovEdge fixture = new MarkovEdge(weight);
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67 |
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68 | String result = fixture.toString();
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69 |
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70 | assertEquals(Double.toString(0.2d), result);
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71 | }
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72 |
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73 | @Before
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74 | public void setUp() throws Exception {
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75 | List<Event> sequence = new ArrayList<Event>();
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76 | sequence.add(new Event(new StringEventType("a")));
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77 | sequence.add(new Event(new StringEventType("b")));
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78 | sequence.add(new Event(new StringEventType("r")));
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79 | sequence.add(new Event(new StringEventType("a")));
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80 | sequence.add(new Event(new StringEventType("c")));
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81 | sequence.add(new Event(new StringEventType("a")));
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82 | sequence.add(new Event(new StringEventType("d")));
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83 | sequence.add(new Event(new StringEventType("a")));
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84 | sequence.add(new Event(new StringEventType("b")));
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85 | sequence.add(new Event(new StringEventType("r")));
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86 | sequence.add(new Event(new StringEventType("a")));
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87 |
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88 | sequences = new ArrayList<List<Event>>();
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89 | sequences.add(sequence);
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90 | }
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91 |
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92 | public static void main(String[] args) {
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93 | new org.junit.runner.JUnitCore().run(FirstOrderMarkovModelTest.class);
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94 | }
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95 | } |
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