Structure Estimation in the Partially Linear Cox Model

是 否 +2 论坛币

k人 参与回答

经管之家送您一份

应届毕业生专属福利!

求职就业群

赵安豆老师微信：zhaoandou666

经管之家联合CDA

送您一个全额奖学金名额~ !

立即领取

感谢您参与论坛问题回答

经管之家送您两个论坛币！

+2 论坛币

时间：12月4日（周四）下午4:00-5:00

地点：京师学堂三层第七会议室

报告人：Xingqiu Zhao

题目： Structure Estimation in the Partially Linear Cox Model

摘要：

The partially linear  Cox model assumes that it is known a priori which covariates have a linear effect and which do not on the log hazards function.  However, this is rarely known in practice. We propose a semiparametric pursuit method to simultaneously detect and estimate  linear and nonlinear covariate effects on the log hazards function through a penalized group selection method with concave folded penalties. The unknown smoothing functions of the nonlinear component are approximated by the B-splines. Both the parametric and nonparametric estimators are consistent, and the parametric estimator is asymptotically normal. We develop a modified blockwise majorization descent algorithm that is easy to implement and has a fast convergence rate. Simulation studies indicate that the proposed method works well, and the primary biliary cirrhosis data are analyzed for illustration.

扫码加我 拉你入群

请注明：姓名-公司-职位

以便审核进群资格，未注明则拒绝

分享0 收藏0 回帖

关键词：Estimation Structure Partially Partial struct partially function practice through method

感谢分享

点赞支持

thanks for sharing

thanks for 你的分享

年复一年 人气依旧
点个赞续口气

感谢分享