He received his Ph.D. in Operations Research from the Georgia Institute of Technology in 2001. His interests include operations research and mathematical programming. Current projects involve integer, quadratic and semidefinite programming, machine learning, and supply chain systems. His research is supported by grants from the National Science Foundation, and he serves on the editorial board of Mathematical Programming Computation and the Asia-Pacific Journal of Operational Research. In 2002, he received the Optimization Prize for Young Researchers, given by the Optimization Section of INFORMS (Institute for Operations Research and the Management Sciences).