I head the query understanding and document understanding efforts at Facebook. Before Facebook, I was with Google Research, working on natural language processing. From 2009 to 2013, I led research in semantic search, graph data processing systems, and distributed query processing at Microsoft Research Asia (MSRA).  At MSRA I initiated and worked on such projects as Probase and Trinity, both of which had great impact in both academia and industry.

I was a research staff member at IBM T. J. Watson Research Center from 2000 to 2009. During this time, I was a Technical Assistant to Stuart Feldman, Vice President of Computer Science of IBM Research (2006-2007), and Technical Assistant to Mark Wegman, Head of Computer Science of IBM Research (2007-2009).

I received a Ph.D. degree in Computer Science from the University of California, Los Angeles in 2000, and have published more than 150 research papers in referred international journals and conference proceedings. I served as a PC Chair of conferences such as CIKM, and am on the editorial board of journals such as IEEE Transactions of Knowledge and Data Engineering (TKDE).

I won the best paper award in ICDE 2015, a 10 year best paper award at ICDM 2013, and the best paper award of ER 2009.


Machine learning, knowledge base, semantic network, and databases