* like stemmer, stopwords.
* @throws Exception
*/
private void setGeneralOptions() {
modelBuilder.setDebug(true);
modelBuilder.setStemmer(new PorterStemmer());
modelBuilder.setStopwords(new StopwordsEnglish());
modelBuilder.setDocumentLanguage("en");
modelBuilder.setMaxPhraseLength(5);
modelBuilder.setWikipedia(wikipedia);
topicExtractor.setDebug(true);
topicExtractor.setStemmer(new PorterStemmer());
topicExtractor.setStopwords(new StopwordsEnglish());
topicExtractor.setDocumentLanguage("en");
topicExtractor.setNumTopics(10);
topicExtractor.setWikipedia(wikipedia);
}