Welcome to my homepage! I currently work at Google Research. My general research interests include data mining, machine learning and information retrieval. Specifically, I have been working on a variety of topics covering text mining, outlier detection, crowdsourcing and social network analysis. Before I joined Google, I obtained my PhD from University of Illinois at Urbana-Champaign and my bachelor’s degree from Tsinghua University.
Email: hlz [AT] google [DOT] com