A Reduced Half Thresholding Algorithm

In this paper, a reduced half thresholding algorithm and its accelerated version, a reduced fast half thresholding algorithm, are proposed for solving large-scale L 1 / 2 -regularized problems. At each iteration, the large-scale original problem is reduced into a sequence of small-scale subproblems,...

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Vydáno v:	Journal of scientific computing Ročník 96; číslo 2
Hlavní autoři:	Liang, Xiubo, Wang, Guoqiang, Yu, Bo
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	New York Springer US 01.08.2023
Témata:	Algorithms Computational Mathematics and Numerical Analysis Mathematical and Computational Engineering Mathematical and Computational Physics Mathematics Mathematics and Statistics Theoretical Sparse optimization Thresholding algorithms regularization
ISSN:	0885-7474, 1573-7691
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