Results 81 to 90 of about 19,600 (195)

Bias-Reduction in Variational Regularization

open access: yes, 2016
The aim of this paper is to introduce and study a two-step debiasing method for variational regularization. After solving the standard variational problem, the key idea is to add a consecutive debiasing step minimizing the data fidelity on an appropriate
Brinkmann, Eva-Maria   +3 more
core   +1 more source

``Efficient” Subgradient Methods for General Convex Optimization [PDF]

open access: yesSIAM Journal on Optimization, 2016
A subgradient method is presented for solving general convex optimization problems, the main requirement being that a strictly-feasible point is known. A feasible sequence of iterates is generated, which converges to within user-specified error of optimality.
openaire   +3 more sources

A self-adaptive inertial subgradient extragradient method for pseudomonotone equilibrium and common fixed point problems

open access: yesFixed Point Theory and Applications, 2020
In this paper, we introduce a self-adaptive inertial subgradient extragradient method for solving pseudomonotone equilibrium problem and common fixed point problem in real Hilbert spaces.
Lateef Olakunle Jolaoso, Maggie Aphane
doaj   +1 more source

Tropical analysis: With an application to indivisible goods

open access: yesTheoretical Economics, Volume 20, Issue 3, Page 815-829, July 2025.
We establish the subgradient theorem for monotone correspondences: a monotone correspondence is equal to the subdifferential of a potential if and only if it is conservative, i.e., its integral along a closed path vanishes irrespective of the selection from the correspondence along the path.
Nicholas C. Bedard, Jacob K. Goeree
wiley   +1 more source

Robust Reduced-Rank Adaptive Processing Based on Parallel Subgradient Projection and Krylov Subspace Techniques [PDF]

open access: yes, 2013
In this paper, we propose a novel reduced-rank adaptive filtering algorithm by blending the idea of the Krylov subspace methods with the set-theoretic adaptive filtering framework.
Isao Yamada   +3 more
core  

Incremental Weak Subgradient Methods for Non-Smooth Non-Convex Optimization Problems

open access: yesInformation
Non-smooth, non-convex optimization problems frequently arise in modern machine learning applications, yet solving them efficiently remains a challenge.
Narges Araboljadidi, Valentina De Simone
doaj   +1 more source

Scaling Techniques for ε-Subgradient Methods.

open access: yesSIAM J. Optim., 2016
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.
Silvia Bonettini   +2 more
openaire   +1 more source

Inertial subgradient-type algorithm for solving equilibrium problems with strong monotonicity over fixed point sets

open access: yesJournal of Inequalities and Applications
This paper introduces an inertial subgradient-type algorithm for solving equilibrium problems with strong monotonicity, constrained over the fixed point set of a nonexpansive mapping in the framework of a real Hilbert space.
Manatchanok Khonchaliew, Narin Petrot
doaj   +1 more source

A simpler approach to obtaining an O(1/t) convergence rate for the projected stochastic subgradient method

open access: yes, 2012
In this note, we present a new averaging technique for the projected stochastic subgradient method. By using a weighted average with a weight of t+1 for each iterate w_t at iteration t, we obtain the convergence rate of O(1/t) with both an easy proof and
Bach, Francis   +2 more
core   +1 more source

Multi-Objective Optimization Design through Machine Learning for Drop-on-Demand Bioprinting

open access: yesEngineering, 2019
Drop-on-demand (DOD) bioprinting has been widely used in tissue engineering due to its high-throughput efficiency and cost effectiveness. However, this type of bioprinting involves challenges such as satellite generation, too-large droplet generation ...
Jia Shi   +3 more
doaj   +1 more source

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