I am a research scientist on the Facebook ads ranking team. My work experience spans across from large firms to start-ups. I was with Skytree, a machine learning start-up, conducting machine learning algorithm R&D and applications in a variety of verticals. Before that, I was with IBM Global Business Services and Siemens Research. I earned my Ph.D. in Computer Science at Temple Univ., Philadelphia, in 2010 and my B.A. in Electronic Commerce at Wuhan Univ. China, in 2006.