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2018 Colloquia

Xuming He
University of Michigan
March 30, 2018
DU 212

2:00 p.m. "Subgroup Analysis: Risks and Rewards"
4:00 p.m. "Inference on Average Treatment Effect with High Dimensional Covariates"


Fan Yang
University of Colorado
April 6, 2018
DU 212
2:00 p.m.

Beidi Qiang
Southern Illinois University Edwardsville
April 13, 2018
DU 212
2:00 p.m.

"Improved Simultaneous Estimation of Location Via Shrinkage Ideas"

Abstract: In decision theory, when several parameters need to be estimated simultaneously, many standard estimators can be improved, in terms of a global loss function. The problem of finding such estimators has been well studied in the literature, but mostly under parametric settings, which is inappropriate under heavy-¬‐tailed distributions. In this presentation a robust simultaneous estimator of location are proposed using shrinkage ideas. Another shrinkage type estimator is developed for comparison via empirical nonparametric Bayesian approach. The proposed estimators do not assume a specific parametric distribution and they do not require the existence of finite moments. The performance of estimators is examined in simulation studies

Ping Yao
Northern Illinois University
April 20, 2018
DU 212
2:00 p.m.

Michael Newton
University of Wisconsin-Madison
April 27, 2018
DU 212
2:00 - 3:00 p.m.
4:00 - 5:00 p.m.