Convergence of adaptive algorithms for constrained weakly convex optimization
Convergence of adaptive algorithms for constrained weakly convex optimization
复制标题
约束弱凸优化自适应算法的收敛性
DOI:
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
V. Cevher
中科院分区:
文献类型:
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作者:
Ahmet Alacaoglu;Yura Malitsky;V. Cevher
We analyze the adaptive first order algorithm AMSGrad, for solving a constrained stochastic optimization problem with a weakly convex objective. We prove the ˜ O ( t − 1 / 2 ) rate of convergence for the squared norm of the gradient of Moreau envelope, which is the standard stationarity measure for this class of problems. It matches the known rates that adaptive algorithms enjoy for the specific case of unconstrained smooth nonconvex stochastic optimization. Our analysis works with mini-batch size of 1 , constant first and second order moment parameters, and possibly unbounded optimization domains. Finally, we illustrate the applications and extensions of our results to specific problems and algorithms.
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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
影响因子:
3
作者:
Davis, Damek;Drusvyatskiy, Dmitriy;Lee, Jason D.
通讯作者:
Lee, Jason D.
影响因子:
2.7
作者:
Drusvyatskiy, D.;Paquette, C.
通讯作者:
Paquette, C.
影响因子:
13.7
作者:
Martin, Ian
通讯作者:
Martin, Ian