讲座题目:Smoothed empirical likelihood inference for ROC curve in the presence of missing biomarker values

讲座人:云南大学数学与统计学院唐年胜教授

时间:20191123(周六)下午16:00-17:00

地点:本部数学楼二楼学术报告厅

  

报告内容This paper considers statistical inference for ROC curve in the presence of missing biomarker values by utilizing estimating equations (EEs) together with smoothed empirical likelihood (SEL). Three approaches are developed to estimate ROC curve and construct its SEL-based confidence intervals based on the kernel-assisted EE imputation, multiple imputation and hybrid imputation combining the inverse probability weighted imputation and multiple imputation. Under some regularity conditions, we show asymptotic properties of the proposed maximum SEL estimators for ROC curve. Simulation studies are conducted to investigate the performance of the proposed SEL approaches. An example is illustrated by the proposed methodologies. Empirical results show that the hybrid imputation method behaves better than the kernel-assisted imputation and multiple imputation methods, and the proposed three SEL methods outperform existing nonparametric method.

  

报告人介绍:云南大学二级教授、数学与统计学院院长、博士生导师。2007年入选教育部新世纪优秀人才支持计划;2012年获国家杰出青年科学基金、“云南省中青年学术和技术带头人”称号;享受省政府特殊津贴;2014年获云南省有突出贡献优秀专业技术人才二等奖、入选云南省首批“云岭学者”和“省委联系专家”;2015年入选云南省高等学校教学名师、云南省科技领军人才、国家百千万人才工程,获“国家有突出贡献中青年专家”荣誉称号;201612月当选为Elected ISI Member(国际统计学会推选会员);2016年享受国务院政府特殊津贴;2017年当选国际泛华统计学会“Board of Directors”;2018年获ICSA Outstanding Service Award。在国内外学术刊物发表论文150余篇,其中SCI检索120余篇。曾获“霍英东教育基金会第九届高等院校青年教师奖”,云南省自然科学二等奖2项、三等奖1项;国家统计局全国统计科研优秀成果二等奖6项。