报告题目：A Unified Approach for Bayesian Envelope Models　

　　报告时间：2019年7月1日（星期一）16:00

　　报告地点：北辰校区理学院西教五416

　　报告嘉宾：Su Zhihua

　　报告概要：The envelope model is a nascent construct that aims to increase efficiency in multivariate analysis. It has been used in many contexts including linear regression, generalized linear models, matrix/tensor variate regression, reduced rank regression, and quantile regression, and has showed the potential to provide substantial efficiency gains. Virtually all of these advances, however, have been made from a frequentist perspective, and the literature addressing envelope models from a Bayesian point of view is sparse. The objective of this talk is to propose a Bayesian framework that is applicable across various envelope model contexts. The proposed framework aids straightforward interpretation of model parameters and allows easy incorporation of prior information. We provide a simple block Metropolis-within-Gibbs MCMC sampler for practical implementation of our method.

　　嘉宾简介：Su Zhihua, 2006年于复旦大学数学系获学士学位，2012年于明尼苏达大学统计系获博士学位。现为佛罗里达大学统计系 Associate Professor。主要从事多元分析、数据降维、模型选择等方面的研究工作。已经在Annals of Statistics、Biometrika、Journal of the Royal Statistical Society: Series B 等期刊发表论文近20篇。