Package org.carrot2.text.linguistic.lucene

Examples of org.carrot2.text.linguistic.lucene.SnowballStemmerFactory

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    /**
     * Creates a {@link SpriteBuilder} with the provided parameters and log.
     */
    public SpriteBuilder(SmartSpritesParameters parameters, MessageLog messageLog)
    {
        this(parameters, messageLog, new FileSystemResourceHandler(
            parameters.getDocumentRootDir(), parameters.getCssFileEncoding(), messageLog));
    }
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    /**
     * Creates a {@link SpriteBuilder} with the provided parameters and log.
     */
    public SpriteBuilder(SmartSpritesParameters parameters, MessageLog messageLog)
    {
        this(parameters, messageLog, new FileSystemResourceHandler(
            parameters.getDocumentRootDir(), parameters.getCssFileEncoding(), messageLog));
    }
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    @Before
    public void prepare()
    {
        spriteDirectiveOccurrenceCollector = new SpriteDirectiveOccurrenceCollector(
            messageLog, new FileSystemResourceHandler(null,
                SmartSpritesParameters.DEFAULT_CSS_FILE_ENCODING, messageLog));
    }
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       */
    case ARABIC:
      // Intentional fall-through.

    default:
      return new ExtendedWhitespaceTokenizer();
    }
  }
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    static ITokenizer createTokenizer() {
      try {
        return new ChineseTokenizer();
      } catch (Throwable e) {
        return new ExtendedWhitespaceTokenizer();
      }
    }
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    }
    return solrStopWords.get(fieldName);
  }

  public ILexicalData getLexicalData(LanguageCode languageCode) {
    final ILexicalData carrot2LexicalData = carrot2LexicalDataFactory
        .getLexicalData(languageCode);

    return new ILexicalData() {
      public boolean isStopLabel(CharSequence word) {
        // Nothing in Solr maps to the concept of a stop label,
        // so return Carrot2's default here.
        return carrot2LexicalData.isStopLabel(word);
      }

      public boolean isCommonWord(MutableCharArray word) {
        // Loop over the fields involved in clustering first
        for (String fieldName : fieldNames) {
          for (CharArraySet stopWords : getSolrStopWordsForField(fieldName)) {
            if (stopWords.contains(word)) {
              return true;
            }
          }
        }
        // Check default Carrot2 stop words too
        return carrot2LexicalData.isCommonWord(word);
      }
    };
  }
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      return;
    }

    // Test with Maltese so that the English clustering performed in other tests
    // is not affected by the test stopwords and stoplabels.
    ILexicalData lexicalData = preprocessing.lexicalDataFactory
        .getLexicalData(LanguageCode.MALTESE);

    for (String word : wordsToCheck.split(",")) {
      if (!lexicalData.isCommonWord(new MutableCharArray(word))
          && !lexicalData.isStopLabel(word)) {
        clusters.add(new Cluster(word));
      }
    }
  }
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        // Adapters to third-party libraries.
        map.put(LanguageCode.POLISH,     new NewClassInstanceFactory<IStemmer>(MorfologikStemmerAdapter.class));
        map.put(LanguageCode.ARABIC,     new NewClassInstanceFactory<IStemmer>(ArabicStemmerAdapter.class));

        // Adapters to snowball.
        map.put(LanguageCode.DANISH,     new SnowballStemmerFactory("org.tartarus.snowball.ext.DanishStemmer"));
        map.put(LanguageCode.DUTCH,      new SnowballStemmerFactory("org.tartarus.snowball.ext.DutchStemmer"));
        map.put(LanguageCode.ENGLISH,    new SnowballStemmerFactory("org.tartarus.snowball.ext.EnglishStemmer"));
        map.put(LanguageCode.FINNISH,    new SnowballStemmerFactory("org.tartarus.snowball.ext.FinnishStemmer"));
        map.put(LanguageCode.FRENCH,     new SnowballStemmerFactory("org.tartarus.snowball.ext.FrenchStemmer"));
        map.put(LanguageCode.GERMAN,     new SnowballStemmerFactory("org.tartarus.snowball.ext.GermanStemmer"));
        map.put(LanguageCode.HUNGARIAN,  new SnowballStemmerFactory("org.tartarus.snowball.ext.HungarianStemmer"));
        map.put(LanguageCode.ITALIAN,    new SnowballStemmerFactory("org.tartarus.snowball.ext.ItalianStemmer"));
        map.put(LanguageCode.NORWEGIAN,  new SnowballStemmerFactory("org.tartarus.snowball.ext.NorwegianStemmer"));
        map.put(LanguageCode.PORTUGUESE, new SnowballStemmerFactory("org.tartarus.snowball.ext.PortugueseStemmer"));
        map.put(LanguageCode.ROMANIAN,   new SnowballStemmerFactory("org.tartarus.snowball.ext.RomanianStemmer"));
        map.put(LanguageCode.RUSSIAN,    new SnowballStemmerFactory("org.tartarus.snowball.ext.RussianStemmer"));
        map.put(LanguageCode.SPANISH,    new SnowballStemmerFactory("org.tartarus.snowball.ext.SpanishStemmer"));
        map.put(LanguageCode.SWEDISH,    new SnowballStemmerFactory("org.tartarus.snowball.ext.SwedishStemmer"));
        map.put(LanguageCode.TURKISH,    new SnowballStemmerFactory("org.tartarus.snowball.ext.TurkishStemmer"));

        // Identity stemming for Chinese.
        map.put(LanguageCode.CHINESE_SIMPLIFIED, identity);
       
        // Specialized stemming for Hindi (ported from Lucene)
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     * one <code>language</code>.
     */
    private void cluster(LanguageCode language)
    {
        // Preprocessing of documents
        final PreprocessingContext context = preprocessingPipeline.preprocess(documents,
            query, language);

        // Further processing only if there are words to process
        clusters = Lists.newArrayList();
        if (context.hasLabels())
        {
            // Term-document matrix building and reduction
            final VectorSpaceModelContext vsmContext = new VectorSpaceModelContext(
                context);
            final ReducedVectorSpaceModelContext reducedVsmContext = new ReducedVectorSpaceModelContext(
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public class SimpleLabelAssigner implements ILabelAssigner
{
    public void assignLabels(LingoProcessingContext context, DoubleMatrix2D stemCos,
        IntIntOpenHashMap filteredRowToStemIndex, DoubleMatrix2D phraseCos)
    {
        final PreprocessingContext preprocessingContext = context.preprocessingContext;
        final int firstPhraseIndex = preprocessingContext.allLabels.firstPhraseIndex;
        final int [] labelsFeatureIndex = preprocessingContext.allLabels.featureIndex;
        final int [] mostFrequentOriginalWordIndex = preprocessingContext.allStems.mostFrequentOriginalWordIndex;
        final int desiredClusterCount = stemCos.columns();
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Related Classes of org.carrot2.text.linguistic.lucene.SnowballStemmerFactory

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  • com.carrotsearch.hppc.IntArrayList
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  • com.tamingtext.carrot2.Carrot2ExampleTest
  • org.apache.http.message.BasicNameValuePair
  • org.apache.lucene.search.IndexSearcher
  • org.apache.mahout.math.matrix.DoubleMatrix2D
  • org.carrot2.clustering.kmeans.BisectingKMeansClusteringAlgorithm
  • org.carrot2.clustering.kmeans.BisectingKMeansClusteringAlgorithmTest
  • org.carrot2.clustering.lingo.ClusterBuilder
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