Results 21 to 30 of about 19,030 (190)

Scaling Techniques for $\epsilon$-Subgradient Methods [PDF]

open access: yesSIAM Journal on Optimization, 2016
Summary: The recent literature on first order methods for smooth optimization shows that significant improvements on the practical convergence behavior can be achieved with variable step size and scaling for the gradient, making this class of algorithms attractive for a variety of relevant applications.
BONETTINI, Silvia   +2 more
openaire   +2 more sources

On Robustness of the Normalized Subgradient Method with Randomly Corrupted Subgradients [PDF]

open access: yes2021 American Control Conference (ACC), 2021
Numerous modern optimization and machine learning algorithms rely on subgradient information being trustworthy and hence, they may fail to converge when such information is corrupted. In this paper, we consider the setting where subgradient information may be arbitrarily corrupted (with a given probability) and study the robustness properties of the ...
Turan, Berkay   +3 more
openaire   +2 more sources

Relaxation Subgradient Algorithms with Machine Learning Procedures

open access: yesMathematics, 2022
In the modern digital economy, optimal decision support systems, as well as machine learning systems, are becoming an integral part of production processes.
Vladimir Krutikov   +4 more
doaj   +1 more source

Distributed subgradient methods and quantization effects [PDF]

open access: yes2008 47th IEEE Conference on Decision and Control, 2008
We consider a convex unconstrained optimization problem that arises in a network of agents whose goal is to cooperatively optimize the sum of the individual agent objective functions through local computations and communications. For this problem, we use averaging algorithms to develop distributed subgradient methods that can operate over a time ...
Nedić, Angelia   +3 more
openaire   +2 more sources

Modified Inertial-Type Subgradient Extragradient Methods for Variational Inequalities and Fixed Points of Finite Bregman Relatively Nonexpansive and Demicontractive Mappings

open access: yesAxioms, 2023
In this paper, we design two inertial-type subgradient extragradient algorithms with the linear-search process for resolving the two pseudomonotone variational inequality problems (VIPs) of and the common fixed point problem (CFPP) of finite Bregman ...
Cong-Shan Wang   +5 more
doaj   +1 more source

A Novel Lagrangian Multiplier Update Algorithm for Short-Term Hydro-Thermal Coordination

open access: yesEnergies, 2020
The backbone of a conventional electrical power generation system relies on hydro-thermal coordination. Due to its intrinsic complex, large-scale and constrained nature, the feasibility of a direct approach is reduced.
P. M. R. Bento   +3 more
doaj   +1 more source

Modified Mann Subgradient-like Extragradient Rules for Variational Inequalities and Common Fixed Points Involving Asymptotically Nonexpansive Mappings

open access: yesMathematics, 2022
In a real Hilbert space, we aim to investigate two modified Mann subgradient-like methods to find a solution to pseudo-monotone variational inequalities, which is also a common fixed point of a finite family of nonexpansive mappings and an asymptotically
Lu-Chuan Ceng   +2 more
doaj   +1 more source

Inference About Separable Causal Effects With Longitudinal Bivariate Ordinal Responses With Missingness and Censoring. [PDF]

open access: yesStat Med
ABSTRACT Causal inference has gained extensive attention in various fields, including healthcare, epidemiology, and social sciences. While many methods have been developed, most research has been directed to handle data with a univariate response variable.
Hu P, Yi GY.
europepmc   +2 more sources

A class of strongly convergent subgradient extragradient methods for solving quasimonotone variational inequalities

open access: yesDemonstratio Mathematica, 2023
The primary goal of this research is to investigate the approximate numerical solution of variational inequalities using quasimonotone operators in infinite-dimensional real Hilbert spaces.
Rehman Habib ur   +4 more
doaj   +1 more source

An inertial parallel CQ subgradient extragradient method for variational inequalities application to signal-image recovery

open access: yesResults in Nonlinear Analysis, 2021
In this paper, we introduce an inertial parallel CQ subgradient extragradient method for finding a common solutions of variational inequality problems.
Ponkamon Kitisak, Watcharaporn Cholamjiak, Damrongsak Yambangwai
doaj   +1 more source

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