Matrix Completion With Covariate Information
Matrix Completion With Covariate Information
复制标题
使用协变量信息进行矩阵补全
DOI:
10.1080/01621459.2017.1389740
复制
发表时间:
2018-06
影响因子:
3.7
通讯作者:
Wong Raymond K W
中科院分区:
文献类型:
--
作者:
Mao Xiaojun;Chen Song Xi;Wong Raymond K W
ABSTRACT This article investigates the problem of matrix completion from the corrupted data, when the additional covariates are available. Despite being seldomly considered in the matrix completion literature, these covariates often provide valuable information for completing the unobserved entries of the high-dimensional target matrix A0. Given a covariate matrix X with its rows representing the row covariates of A0, we consider a column-space-decomposition model A0 = Xβ0 + B0, where β0 is a coefficient matrix and B0 is a low-rank matrix orthogonal to X in terms of column space. This model facilitates a clear separation between the interpretable covariate effects (Xβ0) and the flexible hidden factor effects (B0). Besides, our work allows the probabilities of observation to depend on the covariate matrix, and hence a missing-at-random mechanism is permitted. We propose a novel penalized estimator for A0 by utilizing both Frobenius-norm and nuclear-norm regularizations with an efficient and scalable algorithm. Asymptotic convergence rates of the proposed estimators are studied. The empirical performance of the proposed methodology is illustrated via both numerical experiments and a real data application.
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DOI:
10.5555/1953048.2185803
发表时间:
2009-10
期刊:
ArXiv
影响因子:
--
作者:
B. Recht
通讯作者:
B. Recht
DOI:
10.5555/1756006.1859920
发表时间:
2009-06
期刊:
J. Mach. Learn. Res.
影响因子:
--
作者:
Raghunandan H. Keshavan;A. Montanari;Sewoong Oh
通讯作者:
Raghunandan H. Keshavan;A. Montanari;Sewoong Oh
影响因子:
6.1
作者:
D. Freedman
通讯作者:
D. Freedman
影响因子:
22.7
作者:
Candes, Emmanuel;Recht, Benjamin
通讯作者:
Recht, Benjamin
DOI:
--
发表时间:
2012-11
期刊:
--
影响因子:
--
作者:
Tingni Sun;Cun-Hui Zhang
通讯作者:
Tingni Sun;Cun-Hui Zhang