Bowei Zou is a PhD candidate at Soochow University, China. He received his MS and BS both in computer science from Harbin Institute of Technology, China in 2009 and 2007 respectively. His research interests include natural language processing, information extraction, and text mining. Guodong Zhou received the PhD degree in computer science from the National University of Singapore, Singapore in 1999. He joined the Institute for Infocomm Research, Singapore in 1999, and had been an associate scientist, scientist and associate lead scientist at the institute until August 2006. Currently, he is a distinguished professor at the School of Computer Science and Technology, Soochow University, China. His research interests include natural language processing, information extraction, and machine learning. E-mail: zoubowei@gmail.com; {gdzhou, qmzhu}@suda.edu.cn.Qiaoming Zhu received his PhD degree from Soochow University, China in 2008. Currently, he is a professor at the university and acts as the deputy director of Department of Science, Technology and Industry. His research interests include natural language processing, information extraction, and embedded systems.