About I am a Research Scientist at Yahoo! Labs, working on problems of personalization and recommedation. Prior to joining Yahoo! Labs, I was a Ph.D. candidate in Department of Computer Science and Engineering at Lehigh University, where I was a member of WUME lab from 2008 to 2013, under the supervision of Associate Professor Brian D. Davison. I obtained M.S. from Lehigh University (2010) and B.S. from Beijing University of Chemical Technology (2007), both in Computer Science.