I am broadly interested in data management with a focus on data mining and machine learning, especially in data integration and data quality analysis for truth discovery and crowdsourcing. I have contributed several key methods and is recognized as an expert in these fields. I was Postdoctoral Research Associate in the Department of Computer Science, University of Illinois at Urbana-Champaign under the supervision of Prof Jiawei Han (one of the most prestigious groups in data mining)