Longitudinal Data Analysis, Model Based Clustering, Measurement Error Models, Mixed Effects Models, Missing Data Issues, Non- and Semiparametric Modeling, Applications in Biological and Medical Fields.
Courses Taught
Stat 500, Applied Statistics I
Education
Ph.D., 1992 (statistics); Cornell University
MAS, 1987 (statistics); Ohio State University
BS, 1986 (mathematics); National Tsing-Hua University, Taiwan
Professional Societies
Fellow of the American Statistical Association
Fellow of the Institute of Mathematical Statistics
Elected Member of the International Statistical Institute
Selected Publications
Robins, J.M. and Wang, N. (2000) Inference in imputation estimators. Biometrika,87, 113-124
Wang, C.Y., Wang, N. and Wang, S. (2000) Regression analysis when covariates are regression parameters of a random effect model. Biometrics,56, 487-496
Morris, J.S., Wang, N., Lupton, J.R., Chapkin, R.S., Turner, N.D., Hong, M.Y. and Carroll, R.J. (2001) Parametric and nonparametric methods for understanding the relationship between carcinogen-induced DNA adduct levels in distal and proximal regions of the colon. JASA, 96, 816-827
Cheng, S.C. and Wang, N. (2001) Linear transformation models for failure time data with covariate measurement error. JASA , 96, 706-717
Nguyen, D.V., Arpat, A.B., Wang, N. and Carroll, R.J. (2002) DNA microarray experiments: biological and technological aspects. Biometrics, 58, 701-717
Wang, N. and Raftery, A.E. (2002) Robust covariance estimation via nearest neighbor cleaning. JASA, (with discussion) 97, 994-1006, Rejoinder, 1016-1019
Wang, N. (2003) Marginal Nonparametric kernel regression accounting for within-subject correlation Biometrika,90, 43-52
Hu, Z., Wang, N. and Carroll, R.J. (2004) Profile-Kernel versus Backfitting in the Partially Linear Models for Longitudinal/Clustered Data. Biometrika,91, 251-262
Lin, X., Wang, N., Welsh, A. and Carroll, R. J. (2004) Equivalent Kernels of Smoothing Splines in Nonparametric Regression for Clustered Data. Biometrika, 91, 177-193
Wang, N., Carroll, R.J. and Lin, X. (2005) Efficient semiparametric marginal estimation for longitudinal/clustered data. JASA, 147-157
Liang, H. and Wang, N. (2005) Large sample theory in a semiparametric partially linear errors-in-variables model. Statistica Scinica, 99-117
Ma, Y., Chiou, J.M. and Wang, N. (2006) Efficient semiparametric estimator for heteroscedastic partially linear models. Biometrika, 93, 75-84
Liang, F., Liu, C. and Wang, N. (2007) A sequential Bayesian procedure for differential gene expression. Statistica Sinica,17, 571-598
Li, E., Wang, N. and Wang, N.Y. (2007) Joint models for a primary endpoint and multivariate longitudinal data. Biometrics,63, 1068-1078
Li, Y., Wang, N, Hong, M, Turner, N., Lupton, J. and Carroll. R. J. (2007). Nonparametric estimation of correlation functions in spatial and longitudinal data, with application to colon carcinogenesis experiments. Annals of Statistics,35, 4, 1608-1643
Awards
2003 Distinguished Achievement Award in Research, Association of Former Students,Texas A&M University
2002 Journal of American Statistical Association invited discussion paper
1997-2002 NIH FIRST award
1997 Journal of American Statistical Association Editor's invited paper in JSM 1997