Primary Appointments:

2020 – present, Vice Chair of Research, Department of Biostatistics, Columbia University

2017 – present, Professor of Biostatistics (with tenure), Department of Biostatistics, Columbia University

2011 – 2017, Associate professor of Biostatistics(with tenure), Department of Biostatistics, Columbia University

2004 – 2011, Assistant professor of Biostatistics, Department of Biostatistics, Columbia University

Research Interests:

Quantile regression and its applications in public health and medicine; Semi-parametric models; multivariate quantiles; longitudinal data analysis; measurement errors; missing data; robust statistics.

Education:

2004  Ph.D. in Statistics, University of Illinois at Urbana-Champaign.

2001  M.S. in Mathematics,  University of Science and Technology of China

1998   B.S.,  University of Science and Technology of China.

Professional Services:

2011- 2020, Associate Editor for the Journal of American Statistical Association.

2015 – 2017, Associate Editor for the Science China:Mathematics.

2015 – 2017, Nomination Committee for the International Chinese Statistical Association (ICSA)

2012-2015, on the Board of Directors for the International Chinese Statistical Association

Honors and Awards:

2021, the International Statistical Institute (ISI) Fellow

2020,  the Institute of Mathematical Science (IMS) Fellow

2015,   the American Statistical Association Fellow

2011,  Noether Young Scholar Award by the American Statistical Association.

2008, Career Development Award from the NIEHS Center for Environmental Health in Northern Manhattan

2007, Calderone Research Prize for Junior Faculty (seed grant), Columbia University.