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math.ST2019★ 2 cited
A Multiscale Scan Statistic for Adaptive Submatrix Localization
Yuchao Liu, Ery Arias-Castro
We consider the problem of localizing a submatrix with larger-than-usual entry values inside a data matrix, without the prior knowledge of the submatrix size. We establish an optim…
math.ST2018
Distribution-Free, Size Adaptive Submatrix Detection with Acceleration
Yuchao Liu, Jiaqi Guo
Given a large matrix containing independent data entries, we consider the problem of detecting a submatrix inside the data matrix that contains larger-than-usual values. Different…
math.ST2016
Distribution-free Detection of a Submatrix
Ery Arias-Castro, Yuchao Liu
We consider the problem of detecting the presence of a submatrix with larger-than-usual values in a large data matrix. This problem was considered in (Butucea and Ingster, 2013) un…