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math.NA2021
A Column-Wise Update Algorithm for Sparse Stochastic Matrix Factorization
Guiyun Xiao, Zheng-Jian Bai, Wai-Ki Ching
Nonnegative matrix factorization arises widely in machine learning and data analysis. In this paper, for a given factorization of rank r, we consider the sparse stochastic matrix f…
math.NA2020
Single-pass randomized QLP decomposition for low-rank approximation
Huan Ren, Zheng-Jian Bai
The QLP decomposition is one of the effective algorithms to approximate singular value decomposition (SVD) in numerical linear algebra. In this paper, we propose some single-pass r…
math.NA2020
A Modified Orthogonal Matching Pursuit for Construction of Sparse Probabilistic Boolean Networks
Guiyun Xiao, Zheng-Jian Bai, Wai-Ki Ching
Probabilistic Boolean Networks play a remarkable role in the modelling and control of gene regulatory networks. In this paper, we consider the inverse problem of constructing a spa…