· Research Scientist, Lucent Bell Labs1998–2000
· Chancellor's Distinguished Professor, University of California, Berkeley1993–
· PhD in Statistics, University of California, Berkeley1990–
· MS in Statistics, University of California, Berkeley1987–
· BS in Mathematics, Peking University1984–
· Senior Advisor, Simons Institute for the Theory of Computing
· Assistant Professor, University of Wisconsin-Madison
· Visiting Assistant Professor, Yale University