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- W3216015206 abstract "The linearly constrained convex composite programming problems whose objective function contains two blocks with each block being the form of nonsmooth+smooth arises frequently in multiple fields of applications. If both of the smooth terms are quadratic, this problem can be solved efficiently by using the symmetric Gaussian-Seidel (sGS) technique based proximal alternating direction method of multipliers (ADMM). However, in the non-quadratic case, the sGS technique can not be used any more, which leads to the separable structure of nonsmooth+smooth had to be ignored. In this paper, we present a generalized ADMM and particularly use a majorization technique to make the corresponding subproblems more amenable to efficient computations. Under some appropriate conditions, we prove its global convergence for the relaxation factor in $(0,2)$. We apply the algorithm to solve a kind of simulated convex composite optimization problems and a type of sparse inverse covariance matrix estimation problems which illustrates that the effectiveness of the algorithm are obvious." @default.
- W3216015206 created "2021-12-06" @default.
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- W3216015206 date "2021-11-24" @default.
- W3216015206 modified "2023-10-17" @default.
- W3216015206 title "A Majorized-Generalized Alternating Direction Method of Multipliers for Convex Composite Programming" @default.
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- W3216015206 doi "https://doi.org/10.48550/arxiv.2111.12519" @default.
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