Dr. Xu is currently a professor of Computer Science and Engineering at the University at Buffalo (the State University of New York).

Dr. Xu's research interest lies in the fields of Algorithms, Computational Geometry, Combinatorial Optimization, Machine Learning, and Geometric Computing in Biomedical Imaging, Treatment Planning and Diagnosis, and Networking. His recent research has focused on the development of geometric algorithms and optimization methods for solving problems arising in biomedical imaging and cardiovascular interventional procedures.

Dr. Xu's research has been supported by National Science Foundation (NSF), National Institute of Health (NIH), NYSTAR, IBM, and University at Buffalo. He is a recipient of the NSF CAREER Award and the IBM Faculty Partnership Award.