• Bachelor's degree from the USTC (1982), Master's degree from the Institute of System's Science (1985) and PhD degree from the University of Wisconsin-Madison (1990).
• Research interests: Finite Mixture Models, Statistical Genetics, Empirical Likelihood, Survey Methodology, Design of Experiment.
• President of ICSA (2005), Section of Survey Methodology of the Statistical Society of Canada (2007).
• Elected fellow of the IMS and ASA.
• Recipient of the CRM-SSC Prize, Gold Medal of SSC, Canada, and distinguished achievement award of ICSA.
• Elected fellow of the Royal Society of Canada (2022).
• Canada Research Chair , Tier I (2007-2020).