On the Linear Convergence of Forward–Backward Splitting Method: Part I—Convergence Analysis
On the Linear Convergence of Forward–Backward Splitting Method: Part I—Convergence Analysis
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前向-后向分裂法的线性收敛性:第一部分-收敛性分析
DOI:
10.1007/s10957-020-01787-7
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发表时间:
2021
影响因子:
1.9
通讯作者:
Nghia, Tran T.
中科院分区:
文献类型:
--
作者:
Bello-Cruz, Yunier;Li, Guoyin;Nghia, Tran T.
In this paper, we study the complexity of the forward–backward splitting method with Beck–Teboulle’s line search for solving convex optimization problems, where the objective function can be split into the sum of a differentiable function and a nonsmooth function. We show that the method converges weakly to an optimal solution in Hilbert spaces, under mild standing assumptions without the global Lipschitz continuity of the gradient of the differentiable function involved. Our standing assumptions is weaker than the corresponding conditions in the paper of Salzo (SIAM J Optim 27:2153–2181, 2017). The conventional complexity of sublinear convergence for the functional value is also obtained under the local Lipschitz continuity of the gradient of the differentiable function. Our main results are about the linear convergence of this method (in the quotient type), in terms of both the function value sequence and the iterative sequence, under only the quadratic growth condition. Our proof technique is direct from the quadratic growth conditions and some properties of the forward–backward splitting method without using error bounds or Kurdya-Łojasiewicz inequality as in other publications in this direction.
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DOI:
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发表时间:
2014
期刊:
影响因子:
--
作者:
D. Azé;J. Corvellec
通讯作者:
J. Corvellec
DOI:
10.1287/moor.2017.0889
发表时间:
2016-02
期刊:
Math. Oper. Res.
影响因子:
--
作者:
D. Drusvyatskiy;A. Lewis
通讯作者:
D. Drusvyatskiy;A. Lewis
DOI:
--
发表时间:
2017
期刊:
E S A I M: Control, Optimisation and Calculus of Variations
影响因子:
--
作者:
Guillaume Garrigos;L. Rosasco;S. Villa
通讯作者:
S. Villa
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
Yunier Bello Cruz;T. Nghia
通讯作者:
T. Nghia