He received his PhD degree from the Chinese Academy of Sciences Institute of Computing Technology in 2007. His research focuses on natural language processing and machine translation. He has published over 60 papers in leading NLP/AI journals and conferences such as Computational Linguistics, ACL, AAAI, EMNLP, and COLING. He was the recipient of ACL 2017 Outstanding Paper, COLING/ACL 2006 Meritorious Asian NLP Paper Award and the National Science and Technology Progress Award second prize. He served as Executive Committee Member of Asia-Pacific Chapter of ACL, Editorial Board Member of Computational Linguistics, Associate Editor of ACM TALLIP, ACL 2014 tutorial co-chair, ACL 2015 local arrangement co-chair, ACL 2017/2018 area co-chairs, EMNLP 2016/2018 area co-chairs, IJCAI 2016/2018 senior PC, AAAI 2019 senior PC, and SIGHAN information officer.