Example usage for opennlp.tools.languagemodel NGramLanguageModel NGramLanguageModel

Introduction

In this page you can find the example usage for opennlp.tools.languagemodel NGramLanguageModel NGramLanguageModel.

Prototype

public NGramLanguageModel() 

Source Link

Usage

From source file:opennlp.tools.languagemodel.NgramLanguageModelTest.java

@Test
public void testEmptyVocabularyProbability() throws Exception {
    NGramLanguageModel model = new NGramLanguageModel();
    Assert.assertEquals("probability with an empty vocabulary is always 0", 0d,
            model.calculateProbability(new StringList("")), 0d);
    Assert.assertEquals("probability with an empty vocabulary is always 0", 0d,
            model.calculateProbability(new StringList("1", "2", "3")), 0d);
}

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From source file:opennlp.tools.languagemodel.NgramLanguageModelTest.java

@Test
public void testRandomVocabularyAndSentence() throws Exception {
    NGramLanguageModel model = new NGramLanguageModel();
    for (StringList sentence : LanguageModelTestUtils.generateRandomVocabulary(10)) {
        model.add(sentence, 2, 3);/*from www . java 2  s  . c o m*/
    }
    double probability = model.calculateProbability(LanguageModelTestUtils.generateRandomSentence());
    Assert.assertTrue("a probability measure should be between 0 and 1 [was " + probability + "]",
            probability >= 0 && probability <= 1);
}

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