I obtained my Ph.D. degree from Center of Social Computing and Information Retrieval, School of Computer Science and Technology, Harbin Institue of Technology,on November,2009. During the Ph.D. candidate period, I focused on natural language processing, and information extraction. I joined in Tianjin University,on March,2010. Supported by CSC, I visited School of Computing, Informatics, and Decision Systems Engineering, Arizona State University from March,2013 to March 2014, and studied machine learning and social media mining under supervision of Professor Jieping Ye and Professor Huan Liu. Now, My research interests include natural language processing, social media mining and machine learning.