Doctor of Philosophy, Korea University, Seoul, 2003.
Assistant professor Korea University, Seoul, 2003—2004. Researcher ATR-International Spoken Language Communications Laboratories, Kyoto, 2004—2006. Senior researcher, engineer Electronics and Telecommunications Research Institute Speech/Language Research Center, Daejeon, Republic of Korea, since 2006.
Reviewer Institute of Electronics, Information and Communication Engineers Transactions on Information and Systems, Japan, 2005—2006, Association for Computing Machinery (ACM) Transactions on Asian Language Information Processing, 2005—2007. Program committee Human Language Technology 2006, Seoul, since 2006, International Workshop on Spoken Language Translate, Kyoto, 2006. Presenter in field.
Member of Association for Computational Linguistics (program committee member 2007).