Prior to joining the University of Kentucky, he was an Assistant Professor in the Department of Statistics at the University of California, Riverside.He received the B.S. and M.S. degrees in statistics from Peking University, and the Ph.D. degree in biostatistics from the Johns Hopkins University. He is interested in causal inference and Bayesian methods. He is also interested in bioinformatics, especially the analysis of next-generation sequencing data.