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Yang Zhao

Research Interests

Statistics and biostatistics: incomplete data, measurement error, estimating equation, maximum likelihood, EM-algorithm, goodness of fits, and two-phase sampling design

Current Courses

STAT 357/757 Sampling Theory, STAT 855 Generalized Linear Models

Recent Publications

1) Zhao, Yang. 2025. “A General Semiparametric Maximum Likelihood Method for Cox Regression Models with Nonmonotone Missing at Random Covariates.” Comput. Statist. 40 (9): 5417–32.

2) Zhao, Yang. 2025. “Unified Estimation Method for Partially Linear Models with Nonmonotone Missing at Random Data.” Biom. J. 67 (5): Paper No. e70070, 7. https://doi.org/10.1002/bimj.70070.

3) Zhao, Yang.  Maximum likelihood estimation of missing data probability for nonmonotone missing at random data.  Stat. Methods Appl. 32 (2023), no. 1, 197–209.