Bachelor in Computer Science, Konkuk University, Seoul, Korea, 1996. Master of Science in Computer Engineering, Sogang University, Seoul, 1998. Doctor of Philosophy in Natural Language Processing, Sogang University, 2003.
Senior researcher Diquest, Seoul, 2000—2004. Visiting scholar University Massachusetts, Amherst, 2004—2005. Senior researcher Electronics and Telecomm.
Research Institute, Daejeon-si, Republic of Korea, 2005—2006. Professor Kangwon National University, Chuncheon-si, Republic of Korea, since 2006.
Member of Institute Electronics, Information and Communications Engineers (associate), Korean Society Cognitive Science (associate), Korea Information Science Society (associate), Information Processing and Management (associate).