Compositional knockoff filter for high-dimensional regression analysis of microbiome data.
Compositional knockoff filter for high-dimensional regression analysis of microbiome data.
复制标题
用于微生物组数据高维回归分析的组合仿冒过滤器。
作者:
Srinivasan A;Xue L;Zhan X
A critical task in microbiome data analysis is to explore the association between a scalar response of interest and a large number of microbial taxa that are summarized as compositional data at different taxonomic levels. Motivated by fine-mapping of the microbiome, we propose a two-step compositional knockoff filter (CKF) to provide the effective finite-sample false discovery rate (FDR) control in high-dimensional linear log-contrast regression analysis of microbiome compositional data. In the first step, we propose a new compositional screening procedure to remove insignificant microbial taxa while retaining the essential sum-to-zero constraint. In the second step, we extend the knockoff filter to identify the significant microbial taxa in the sparse regression model for compositional data. Thereby, a subset of the microbes is selected from the high-dimensional microbial taxa as related to the response under a pre-specified FDR threshold. We study the theoretical properties of the proposed two-step procedure, including both sure screening and effective false discovery control. We demonstrate these properties in numerical simulation studies to compare our methods to some existing ones and show power gain of the new method while controlling the nominal FDR. The potential usefulness of the proposed method is also illustrated with application to an inflammatory bowel disease dataset to identify microbial taxa that influence host gene expressions.
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影响因子:
12.3
作者:
Morgan XC;Kabakchiev B;Waldron L;Tyler AD;Tickle TL;Milgrom R;Stempak JM;Gevers D;Xavier RJ;Silverberg MS;Huttenhower C
通讯作者:
Huttenhower C
影响因子:
9.5
作者:
Hawinkel, Stijn;Mattiello, Federico;Thas, Olivier
通讯作者:
Thas, Olivier
影响因子:
4.5
作者:
Barber, Rina Foygel;Candes, Emmanuel J.
通讯作者:
Candes, Emmanuel J.
DOI:
10.1093/biostatistics/kxy025
发表时间:
2019-10-01
期刊:
Biostatistics (Oxford, England)
影响因子:
--
作者:
Tang, Zheng-Zheng;Chen, Guanhua
通讯作者:
Chen, Guanhua
DOI:
10.1214/12-aoas592
发表时间:
2013-03-01
期刊:
The annals of applied statistics
影响因子:
--
作者:
Chen J;Li H
通讯作者:
Li H