Examples with TokenizerFactory org.deeplearning4j.text.tokenization.tokenizerfactory.TokenizerFactory used on opensource projects

Example 6 with TokenizerFactory

use of org.deeplearning4j.text.tokenization.tokenizerfactory.TokenizerFactory in project deeplearning4j by deeplearning4j.

the class Word2VecTests method testW2VnegativeOnRestore.

@Test
public void testW2VnegativeOnRestore() throws Exception {
    // Strip white space before and after for each line
    SentenceIterator iter = new BasicLineIterator(inputFile.getAbsolutePath());
    // Split on white spaces in the line to get words
    TokenizerFactory t = new DefaultTokenizerFactory();
    t.setTokenPreProcessor(new CommonPreprocessor());
    Word2Vec vec = new Word2Vec.Builder().minWordFrequency(1).iterations(3).batchSize(64).layerSize(100).stopWords(new ArrayList<String>()).seed(42).learningRate(0.025).minLearningRate(0.001).sampling(0).elementsLearningAlgorithm(new SkipGram<VocabWord>()).negativeSample(10).epochs(1).windowSize(5).useHierarchicSoftmax(false).allowParallelTokenization(true).modelUtils(new FlatModelUtils<VocabWord>()).iterate(iter).tokenizerFactory(t).build();
    assertEquals(false, vec.getConfiguration().isUseHierarchicSoftmax());
    log.info("Fit 1");
    vec.fit();
    File tmpFile = File.createTempFile("temp", "file");
    tmpFile.deleteOnExit();
    WordVectorSerializer.writeWord2VecModel(vec, tmpFile);
    iter.reset();
    Word2Vec restoredVec = WordVectorSerializer.readWord2VecModel(tmpFile, true);
    restoredVec.setTokenizerFactory(t);
    restoredVec.setSentenceIterator(iter);
    assertEquals(false, restoredVec.getConfiguration().isUseHierarchicSoftmax());
    assertTrue(restoredVec.getModelUtils() instanceof FlatModelUtils);
    assertTrue(restoredVec.getConfiguration().isAllowParallelTokenization());
    log.info("Fit 2");
    restoredVec.fit();
    iter.reset();
    restoredVec = WordVectorSerializer.readWord2VecModel(tmpFile, false);
    restoredVec.setTokenizerFactory(t);
    restoredVec.setSentenceIterator(iter);
    assertEquals(false, restoredVec.getConfiguration().isUseHierarchicSoftmax());
    assertTrue(restoredVec.getModelUtils() instanceof BasicModelUtils);
    log.info("Fit 3");
    restoredVec.fit();
}

Example 7 with TokenizerFactory

use of org.deeplearning4j.text.tokenization.tokenizerfactory.TokenizerFactory in project deeplearning4j by deeplearning4j.

the class Word2VecTests method testUnknown1.

@Test
public void testUnknown1() throws Exception {
    // Strip white space before and after for each line
    SentenceIterator iter = new BasicLineIterator(inputFile.getAbsolutePath());
    // Split on white spaces in the line to get words
    TokenizerFactory t = new DefaultTokenizerFactory();
    t.setTokenPreProcessor(new CommonPreprocessor());
    Word2Vec vec = new Word2Vec.Builder().minWordFrequency(10).useUnknown(true).unknownElement(new VocabWord(1.0, "PEWPEW")).iterations(1).layerSize(100).stopWords(new ArrayList<String>()).seed(42).learningRate(0.025).minLearningRate(0.001).sampling(0).elementsLearningAlgorithm(new CBOW<VocabWord>()).epochs(1).windowSize(5).useHierarchicSoftmax(true).allowParallelTokenization(true).modelUtils(new FlatModelUtils<VocabWord>()).iterate(iter).tokenizerFactory(t).build();
    vec.fit();
    assertTrue(vec.hasWord("PEWPEW"));
    assertTrue(vec.getVocab().containsWord("PEWPEW"));
    INDArray unk = vec.getWordVectorMatrix("PEWPEW");
    assertNotEquals(null, unk);
    File tempFile = File.createTempFile("temp", "file");
    tempFile.deleteOnExit();
    WordVectorSerializer.writeWord2VecModel(vec, tempFile);
    log.info("Original configuration: {}", vec.getConfiguration());
    Word2Vec restored = WordVectorSerializer.readWord2VecModel(tempFile);
    assertTrue(restored.hasWord("PEWPEW"));
    assertTrue(restored.getVocab().containsWord("PEWPEW"));
    INDArray unk_restored = restored.getWordVectorMatrix("PEWPEW");
    assertEquals(unk, unk_restored);
    // now we're getting some junk word
    INDArray random = vec.getWordVectorMatrix("hhsd7d7sdnnmxc_SDsda");
    INDArray randomRestored = restored.getWordVectorMatrix("hhsd7d7sdnnmxc_SDsda");
    log.info("Restored configuration: {}", restored.getConfiguration());
    assertEquals(unk, random);
    assertEquals(unk, randomRestored);
}

Example 8 with TokenizerFactory

use of org.deeplearning4j.text.tokenization.tokenizerfactory.TokenizerFactory in project deeplearning4j by deeplearning4j.

the class Word2VecIteratorTest method before.

@Before
public void before() throws Exception {
    if (vec == null) {
        ClassPathResource resource = new ClassPathResource("/labeled/");
        File file = resource.getFile();
        SentenceIterator iter = UimaSentenceIterator.createWithPath(file.getAbsolutePath());
        new File("cache.ser").delete();
        TokenizerFactory t = new UimaTokenizerFactory();
        vec = new Word2Vec.Builder().minWordFrequency(1).iterations(5).layerSize(100).stopWords(new ArrayList<String>()).useUnknown(true).windowSize(5).iterate(iter).tokenizerFactory(t).build();
        vec.fit();
    }
}

Example 9 with TokenizerFactory

use of org.deeplearning4j.text.tokenization.tokenizerfactory.TokenizerFactory in project deeplearning4j by deeplearning4j.

the class WordVectorSerializerTest method testIndexPersistence.

@Test
public void testIndexPersistence() throws Exception {
    File inputFile = new ClassPathResource("/big/raw_sentences.txt").getFile();
    SentenceIterator iter = UimaSentenceIterator.createWithPath(inputFile.getAbsolutePath());
    // Split on white spaces in the line to get words
    TokenizerFactory t = new DefaultTokenizerFactory();
    t.setTokenPreProcessor(new CommonPreprocessor());
    Word2Vec vec = new Word2Vec.Builder().minWordFrequency(5).iterations(1).epochs(1).layerSize(100).stopWords(new ArrayList<String>()).useAdaGrad(false).negativeSample(5).seed(42).windowSize(5).iterate(iter).tokenizerFactory(t).build();
    vec.fit();
    VocabCache orig = vec.getVocab();
    File tempFile = File.createTempFile("temp", "w2v");
    tempFile.deleteOnExit();
    WordVectorSerializer.writeWordVectors(vec, tempFile);
    WordVectors vec2 = WordVectorSerializer.loadTxtVectors(tempFile);
    VocabCache rest = vec2.vocab();
    assertEquals(orig.totalNumberOfDocs(), rest.totalNumberOfDocs());
    for (VocabWord word : vec.getVocab().vocabWords()) {
        INDArray array1 = vec.getWordVectorMatrix(word.getLabel());
        INDArray array2 = vec2.getWordVectorMatrix(word.getLabel());
        assertEquals(array1, array2);
    }
}

Example 10 with TokenizerFactory

use of org.deeplearning4j.text.tokenization.tokenizerfactory.TokenizerFactory in project deeplearning4j by deeplearning4j.

the class JapaneseTokenizerTest method testJapaneseTokenizer.

@Test
public void testJapaneseTokenizer() throws Exception {
    String toTokenize = "黒い瞳の綺麗な女の子";
    TokenizerFactory t = new JapaneseTokenizerFactory();
    Tokenizer tokenizer = t.create(toTokenize);
    String[] expect = { "黒い", "瞳", "の", "綺麗", "な", "女の子" };
    assertEquals(expect.length, tokenizer.countTokens());
    for (int i = 0; i < tokenizer.countTokens(); ++i) {
        assertEquals(tokenizer.nextToken(), expect[i]);
    }
}