Statistical inferences of linear forms for noisy matrix completion
Statistical inferences of linear forms for noisy matrix completion
复制标题
噪声矩阵完成的线性形式的统计推断
DOI:
10.1111/rssb.12400
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Yuan, Ming
中科院分区:
文献类型:
--
作者:
Xia, Dong;Yuan, Ming
We introduce a flexible framework for making inferences about general linear forms of a large matrix based on noisy observations of a subset of its entries. In particular, under mild regularity conditions, we develop a universal procedure to construct asymptotically normal estimators of its linear forms through double-sample debiasing and low-rank projection whenever an entry-wise consistent estimator of the matrix is available. These estimators allow us to subsequently construct confidence intervals for and test hypotheses about the linear forms. Our proposal was motivated by a careful perturbation analysis of the empirical singular spaces under the noisy matrix completion model which might be of independent interest. The practical merits of our proposed inference procedure are demonstrated on both simulated and real-world data examples.
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