- Associate Editor: Journal of American Statistical Association (March 1993--Dec. 1996, Jan. 1999--Dec. 2005)
- Co-Editor: Journal of Multivariate Analysis (Jan. 2002--Dec. 2005)
- Co-Editor: Sankhya (Jan. 2002--Dec. 2007)
- Fellow: Institute of Mathematical Statistics
- Fellow: American Statistical Association
- Member: International Chinese Statistical Association
- Board of Directors: International Chinese Statistical Association (Aug. 1999--Aug. 2002)
- President: International Chinese Statistical Association (2007)
Research Experience
- Professor: 1996-present, Statistics, University of Wisconsin
- Chair: 2005-2009, Statistics Department, University of Wisconsin
- Associate Chair: 1997-2004, Statistics Department, University of Wisconsin
- Statistician: 2008-present, US Census Bureau
- Senior Research Fellow: 1996-1997, 2006-2007 NSF/ASA/BLS/Census Bureau
- Senior Research Fellow: 1998, Covance
- Associate Professor: 1994-1996, Statistics, University of Wisconsin
- Associate Professor: 1991-1993, Mathematics, University of Ottawa
- Assistant Professor: 1989-1991, Mathematics, University of Ottawa
- Assistant Professor: 1987-1989, Statistics, Purdue University
Education
- B.S. in Mathematics, 1978--1982, East China Normal University
- Ph.D. in Statistics, 1983--1987, University of Wisconsin-Madison
Background
Research Interests: The jackknife, bootstrap and other resampling methods; Variable selection and inference with high dimensional data; Sample surveys (variance estimation, imputation for nonrespondents); Missing data (nonignorable missing, dropout, semi-parametric methods); Longitudinal data analysis with missing data and/or measurement error; Medical statistics (clinical trials, personalized medicine, covariate-adaptive design).
Miscellany
Lecture Materials: STAT 609, STAT 709, STAT 710, STAT 992 (Variable Selection)