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Final Exam: Xiudi Li

Presentation: MStatistical Methods for Problems in Heterogeneous Populations, from Clinical Trials to Latent-Variable Models Candidate: Xiudi Li, Graduate Student, UW Biostatistics Committee Members: Ali Shojaie (co-chair), Alex Luedtke (co-chair), Marco Carone, Shayan Oveis Gharan (GSR) Abstract: This dissertation provides methods for analyzing data from heterogeneous populations and addresses the problems of relative efficiency estimation, estimation in Markov-switching vector autoregressive models, and statistical inference in semiparametric finite mixtures. In project 1, we propose a general framework for using external data available at the planning stage of a clinical trial to identify and make statistical inference about the efficiency gain from covariate adjustment to be expected in this future trial. We propose efficient estimators that allow for the incorporation of flexible statistical learning tools and develop statistical inference procedures to accompany the proposed estimators. In project 2,… Event interval: Online Meeting Link: https://washington.zoom.us/j/99797851313. Event Types: Academics. Event sponsors: UW Biostatistics. Thursday, August 11, 2022, 10:00 AM – 12:00 PM.