统计与数据科学系系列学术报告之五百一十二期

时间：2026年6月9日（星期二）10:00-11:00

主持人：复旦大学管理学院统计与数据科学系朱雪宁副教授

地点：史带楼503室

报告人：Professor Yanyuan Ma （马彦源）

The Pennsylvania State University

题目：Several Studies in Label Shift

摘要：We provide an introduction to label shift problems.In the context of discrete response, we study the importance weights confidence set problem by a paradigm shift from traditional inversion-based inference to a direct matrix constraint framework. We use this framework to characterize a joint confidence region and extract marginal intervals via linear programming, deriving provably tighter bounds for importance weights while maintaining exact finite-sample validity. In the context of continuous response, we study the estimation and

inference of a general target population characteristric by developing doubly and singly robust estimators as well as the efficient estimator. Many ongoing and future developments will be discussed too.

个人简介：Yanyuan Ma is a Professor of Statistics at Penn State. Ma received her Ph.D. in Applied Mathematics from MIT in 1999. She received her B.S. in Mathematics from Beijing University in 1994. Her research interest is in measurement error models, dimension reduction, mixed sample problems, latent variable models, selection bias and skew-elliptical distributions, missing not at random problems and more generally semiparametrics. She is currently a fellow of the Institute of Mathematical Statistics and the American Statistical Association.

统计与数据科学系

2026-6-2