报 告 人： 金百锁
报告地点： 数学与统计学院403室
报告时间： 2016年07月07日星期四10:00-11:00
报告简介：A two-stage procedure for simultaneously detecting multiple thresholds and achieving model selection in the segmented accelerate failure time (AFT) model is developed in this paper. In the first stage, we formulate the threshold problem as a group model selection problem so that a concave 2-norm group selection method can be applied. In the second stage, the thresholds are finalized via a refining method. We establish the strong consistency of the threshold estimates and regression coefficient estimates under some mild technical conditions. The proposed procedure performs satisfactorily in our simulation studies. Its real world applicability is demonstrated via analyzing a follicular lymphoma data.
主讲人简介：
2001年6月于中国科学技术大学本科毕业，毕业后留校任教。在承担教学工作的同时于2006年取得理学博士学位,导师缪柏其教授。博士毕业后在台湾中山大学从事为期一年的博士后研究。先后访问新加坡国立大学,新加坡南洋理工大学，香港浸会大学和加拿大约克大学。研究兴趣：大维随机矩阵，实验设计，模型选择，变点，空间统计。
