TY - JOUR T1 - Sentiment analysis of Chinese documents: From sentence to document level JF - Journal of the Association for Information Science and Technology Y1 - 2009 A1 - Zhang,Changli A1 - Zeng,Daniel A1 - Li,Jiexun A1 - Wang,Fei-Yue A1 - Zuo,Wanli KW - BIS VL - 60 CP - 12 U2 - a U4 - 86817697792 ID - 86817697792 ER -