FANG Ying, lecture of ShangQiu Normal College and PhD student of the Beijing Institute of Techn@ogy. She received her BA from ZhengZhou technology College and MA from ShanXi University. Her research interest fields include Machine Learning, Natural Language Processing. HUANG Heyan, professor and doctoral tutor of the School of Computer Science and Technology of Bei jing Institute of Technology, Director of the Beijing Engineering Research Center of High Volume Language Information Processing and Cloud Computing. She received a MA degree from National University of Defense Technology and a PhD from the Institute of Computing Technology, Chinese Academy of Sciences. Her current research is in machine translation, information retrieval and social media analysis. JIAN Ping, lecturer in the School of Computer Science and Technology of Beijing Institute of Technology. She received a BA and a MA degree from Shandong University, and a PhD from Graduate University of Chinese Academy of Science. Her current research is in natural language syntactic parsing and discourse analysis XIN Xin, assistant professor of Beijing Institute of Technology. He received the BA and MA degree from Tsinghua University, and a PhD degree from the Chinese University of Hong Kong. His current research is information retrieval, machine learning and social media analysis. FEhlG Chong, corresponding author, associate re- searcher of Beijing Institute of Technology, project supervisor of the Beijing Engineering Research Center of High Volume Language Information Processing and Cloud Computing. He received his Ph.D. from the University of Science and Technology of China. His current research interests focus on machine translation, information extraction and social media processing. Email: fengchong@bit.edu.cn. correspondence outhor, Telephone number: 68918674, E-mail: fengchong@bit.edu.cn