for(int topicID=0; topicID<numTopics; topicID++) {
double[] wordProbs = phi[topicID];
List<WordScore> wordScores = new LinkedList<WordScore>();
for(int wordID=0; wordID<numWords; wordID++) {
wordScores.add(new WordScore(idLookup.get(wordID), wordProbs[wordID]));
}
Collections.sort(wordScores);
Collections.reverse(wordScores);
System.out.print("Topic "+topicLookup.get(topicID)+": ");