... notion of topic-sentiment word pair, which consists of a topic term and a sentiment word. A word pair maintains the asso-ciative information between the two words, and enables systems to draw ... consists of 2,812 positive words and 8,276 negative words; (3) Sentiment word lexicon and comment word lexicon from Hownet. It contains 1836 posi-tive sentiment words, 3,730 positive com-ments, ... relevance model and docu-ment model (Huang and Croft, 2009). They di-vided the sentiment words into query-dependent and query-independent by utilizing several sen-timent expansion techniques, and...