Correlation rank screening for ultrahigh-dimensional survival data

详细信息    查看全文

• 作者：Jing Zhang ; Yanyan Liu ; Yuanshan Wu ; ^{shan@whu.edu.cn}
• 关键词：Censored data ; Correlation rank ; Model-free screening ; Sure independent screening ; Survival data ; Ultrahigh-dimensional data
• 刊名：Computational Statistics & Data Analysis
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：108
• 期：Complete
• 页码：121-132
• 全文大小：477 K
• 卷排序：108

文摘

With the recent explosion of ultrahigh-dimensional data, extensive work has been carried out for screening methods which can effectively reduce the dimensionality. However, censored survival data which often arise in clinical trials and genetic studies have been left greatly unexplored for ultrahigh-dimensional scenarios. A novel feature screening procedure is proposed for ultrahigh-dimensional survival data. Also established are the ranking consistency and the sure independent screening properties. Compared with the existing methods, the proposed screening procedure is invariant to the monotone transformation, known or unknown, of the response. Moreover, it can be readily applied to ultrahigh-dimensional complete data when the censoring rate is zero. Simulation studies demonstrate that the proposed procedure exhibits favorably in comparisons with the existing ones. As an illustration, the proposed method is applied to the mantle cell lymphoma study.