Regularized estimation in sparse high-dimensional multivariate regression, with application to a DNA methylation study.
Regularized estimation in sparse high-dimensional multivariate regression, with application to a DNA methylation study.
复制标题
稀疏高维多元回归中的正则化估计及其在 DNA 甲基化研究中的应用
DOI:
10.1515/sagmb-2016-0073
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发表时间:
2017-07-26
影响因子:
0.9
通讯作者:
Liu L
中科院分区:
文献类型:
--
作者:
Zhang H;Zheng Y;Yoon G;Zhang Z;Gao T;Joyce B;Zhang W;Schwartz J;Vokonas P;Colicino E;Baccarelli A;Hou L;Liu L
Abstract In this article, we consider variable selection for correlated high dimensional DNA methylation markers as multivariate outcomes. A novel weighted square-root LASSO procedure is proposed to estimate the regression coefficient matrix. A key feature of this method is tuning-insensitivity, which greatly simplifies the computation by obviating cross validation for penalty parameter selection. A precision matrix obtained via the constrained ℓ1 minimization method is used to account for the within-subject correlation among multivariate outcomes. Oracle inequalities of the regularized estimators are derived. The performance of our proposed method is illustrated via extensive simulation studies. We apply our method to study the relation between smoking and high dimensional DNA methylation markers in the Normative Aging Study (NAS).
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影响因子:
4.5
作者:
Huang J;Ma S;Li H;Zhang CH
通讯作者:
Zhang CH
影响因子:
4.5
作者:
Mukherjee R;Pillai NS;Lin X
通讯作者:
Lin X
DOI:
10.1198/jcgs.2010.09188
发表时间:
2010
期刊:
Journal of computational and graphical statistics : a joint publication of American Statistical Association, Institute of Mathematical Statistics, Interface Foundation of North America
影响因子:
--
作者:
Rothman AJ;Levina E;Zhu J
通讯作者:
Zhu J
影响因子:
4.5
作者:
Cai, Tony;Yuan, Ming
通讯作者:
Yuan, Ming
影响因子:
4.5
作者:
Bradic J;Fan J;Jiang J
通讯作者:
Jiang J