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