code: def get_most_salient_words(vocab, topic_word_distrib, doc_topic_distrib, doc_lengths, n=None):
      
      return _words_by_salience_score(vocab, topic_word_distrib, doc_topic_distrib, doc_lengths, n)
docs: Order the words from `vocab` by "saliency score" (Chuang et al. 2012) from most to least salient. Optionally only
      return the `n` most salient words.
  
      J. Chuang, C. Manning, J. Heer 2012: "Termite: Visualization Techniques for Assessing Textual Topic Models"