中文摘要：

LIU Lizhen, received a PhD in Computer Application from the Beijing Institute of Technology, China. She is currently a Professor at the Capital Normal University. Her research interests include text mining, sentiment analysis and knowledge acquisition.She has published in journals and conferences like Knowl- edge and Information Systems, International Journal of Information ＆ Computational Science, Journal of Software~ Journal of Computers, IEEE World Congress on Intelligent Control and Automation, CSCWD. SONG Wei, received a PhD in Computer Application from the Harbin Institute of Technology, China. He is currently a lecturer at the Capital Normal University. His research interests focus onSentiment Analysis, Personalized Search and Social Computing. He has published his important work on the Proceedings of the ACM SIGIR Conference, Co]ing and so on. Email：msongwei@gmaiI.com WANG Honshi, received a PhD in Computer Application from the Beijing Institute of Technology, China. He is currently a lecturer at the Capital Normal University. His research interests focus on computational linguistics, sentiment analysis, and natural lan- guage processing, especially unsupervised methods in the area. He has published his important work on the famousjournal of Computational Linguistics, and other international conferences. Email： necrostone@ sina.com. LI Chuchu, is a master＇s candidate of Technology of Computer Application at Capital Normal University. Now she is a student in the third year of graduate study. Her research interests include sentiment analysis and machine learning. LU Jingli, received a doctoral degree in Computer Science from Massey University, New Zealand. She is currently a Software Engineer at Agresearch Ltd, New Zealand. Her research interests include Data Mining and Machine Learning, Fuzzy Set Theory, and Speech Signal Processing. She has published several papers in highly-rankly international journals and conferences.