I am a Sr. Research Scientist at Google Brain. I received my PhD in Department of Computer Science and Engineering at University of Michigan, Ann Arbor. My PhD advisor was Professor Qiaozhu Mei at School of Information. And my research interests focus on applied machine learning, data mining, and information retrieval. I got my Bachelor and MSI's degrees from Department of Computer Science, Peking University, 2008 and 2011. My advisor in PKU was Professor Bin Cui.