Biography
Dr. Si is a Research Assistant Professor (tenure track) in the Survey Methodology Program, located within the Survey Research Center at the Institute for Social Research on the University of Michigan-Ann Arbor campus.
Her research focuses on cutting-edge statistical methodology linking design- and model-based approaches for survey inference, missing data analysis, confidentiality protection involving the creation and analysis of synthetic datasets, and causal inference with observational data. She has established her research agenda on advancing survey inference with Bayesian modeling techniques and adjusting for selection/nonresponse bias in complex data modeling with various types of data (e.g., survey and big data) and across broad substantive disciplines. Her methodological focus has been on multilevel regression and poststratification (MRP) and multiple imputation (MI) via Bayesian latent variable models. Her research work has generalized MRP to disentangle analytic challenges in data integration and inferences with large-scale, massive data.