I was a PhD student in Department of Computer Science at University of Illinois at Urbana-Champaign. I was working in the Text Information Management Group (TIMAN) and the Data and Information System Group (DAIS). My advisor was Prof. ChengXiang Zhai.

Research (Selected Publications », Google Scholar)

My research interests include information retrieval and data mining. I have been working on formal retrieval models, query understanding and reformulation, Web search relevance and ranking, mobile and local search, content recommendation, statistical language modeling, machine learning for information retrieval, contextual and personalized search, query log analysis, etc.