[343] | 1 | package de.ugoe.cs.eventbench.models;
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| 2 |
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[344] | 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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[343] | 6 | import java.util.Random;
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| 7 | import org.junit.*;
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[344] | 8 |
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| 9 | import de.ugoe.cs.eventbench.data.Event;
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[343] | 10 | import static org.junit.Assert.*;
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| 11 |
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| 12 | /**
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| 13 | * The class <code>FirstOrderMarkovModelTest</code> contains tests for the class
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| 14 | * <code>{@link FirstOrderMarkovModel}</code>.
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| 15 | *
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| 16 | * @author Steffen Herbold
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| 17 | * @version 1.0
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| 18 | */
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| 19 | public class FirstOrderMarkovModelTest {
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| 20 |
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[344] | 21 | Collection<List<? extends Event<?>>> sequences;
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| 22 |
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[343] | 23 | @Test
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| 24 | public void testFirstOrderMarkovModel_1() throws Exception {
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| 25 | Random r = new Random();
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| 26 |
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| 27 | FirstOrderMarkovModel result = new FirstOrderMarkovModel(r);
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| 28 |
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| 29 | assertNotNull(result);
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| 30 | assertEquals(r, result.r);
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| 31 | assertEquals(2, result.trieOrder);
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| 32 | }
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| 33 |
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| 34 | @Test(expected = java.security.InvalidParameterException.class)
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| 35 | public void testFirstOrderMarkovModel_2() throws Exception {
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| 36 | new FirstOrderMarkovModel(null);
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| 37 | }
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[344] | 38 |
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| 39 | @Test
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| 40 | public void testCalcEntropy() throws Exception {
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| 41 | Random r = new Random();
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| 42 | FirstOrderMarkovModel fixture = new FirstOrderMarkovModel(r);
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| 43 | fixture.train(sequences);
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| 44 |
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| 45 | double result = fixture.calcEntropy();
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| 46 |
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| 47 | assertEquals(0.7392d, result, 0.0001);
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| 48 | }
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| 49 |
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| 50 | @Before
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| 51 | public void setUp() throws Exception {
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| 52 | List<Event<?>> sequence = new ArrayList<Event<?>>();
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| 53 | sequence.add(new Event<String>("a"));
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| 54 | sequence.add(new Event<String>("b"));
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| 55 | sequence.add(new Event<String>("r"));
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| 56 | sequence.add(new Event<String>("a"));
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| 57 | sequence.add(new Event<String>("c"));
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| 58 | sequence.add(new Event<String>("a"));
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| 59 | sequence.add(new Event<String>("d"));
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| 60 | sequence.add(new Event<String>("a"));
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| 61 | sequence.add(new Event<String>("b"));
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| 62 | sequence.add(new Event<String>("r"));
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| 63 | sequence.add(new Event<String>("a"));
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[343] | 64 |
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[344] | 65 | sequences = new ArrayList<List<? extends Event<?>>>();
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| 66 | sequences.add(sequence);
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| 67 | }
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| 68 |
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[343] | 69 | public static void main(String[] args) {
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| 70 | new org.junit.runner.JUnitCore().run(FirstOrderMarkovModelTest.class);
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| 71 | }
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| 72 | } |
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