Results 1 to 10 of about 54 (54)

On Shor's r-Algorithm for Problems with Constraints

open access: yesКібернетика та комп'ютерні технології, 2023
Introduction. Nonsmooth optimization problems arise in a wide range of applications, including engineering, finance, and deep learning, where activation functions often have discontinuous derivatives, such as ReLU.
Vladimir Norkin, Anton Kozyriev
doaj   +1 more source

A Neurodynamic Approach to Nonsmooth Quaternion Distributed Convex Optimization With Inequality and Affine Equality Constraints

open access: yesIEEE Access, 2022
Quaternions have appeared in many practical fields, such as image processing and data mining, and so on. This paper focuses on designing an efficient quaternion-valued neurodynamic approach (QNA) based on multi-agent systems to solve nonsmooth convex ...
Guocheng Li   +3 more
doaj   +1 more source

Use of the Shor’s r-Algorithm in Linear Robust Optimization Problems

open access: yesКібернетика та комп'ютерні технології, 2021
The paper is devoted to the description of a new approach to the construction of algorithms for solving linear programming problems (LP-problems), in which the number of constraints is much greater than the number of variables.
P. Stetsyuk   +3 more
doaj   +1 more source

GNU Octave and Python Implementation of Shor's r-Algorithm with Adaptive Step Control

open access: yesКібернетика та комп'ютерні технології, 2022
r-algorithms, or subgradient methods with dilation of space in the direction of the difference of two sequential subgradients, were proposed by N.Z.Shor in 1970 in his doctoral thesis. Respective software implementations proved to be competitive with the
Petro Stetsyuk   +2 more
doaj   +1 more source

A nonmonotone line search method for solving constrained multiobjective optimization problems [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization
In this paper, we propose a globally convergent Sequential Quadratic Programming (SQP) method for solving constrained multiobjective optimization problems (MOPs) with inequality constraints.
Mehri Rashidi, Esmaile Khorram
doaj   +1 more source

A family of global convergent inexact secant methods for nonconvex constrained optimization

open access: yesJournal of Algorithms & Computational Technology, 2018
We present a family of new inexact secant methods in association with Armijo line search technique for solving nonconvex constrained optimization. Different from the existing inexact secant methods, the algorithms proposed in this paper need not compute ...
Zhujun Wang, Li Cai, Zheng Peng
doaj   +1 more source

A UV-Method for a Class of Constrained Minimized Problems of Maximum Eigenvalue Functions

open access: yesJournal of Function Spaces, 2017
In this paper, we apply the UV-algorithm to solve the constrained minimization problem of a maximum eigenvalue function which is the composite function of an affine matrix-valued mapping and its maximum eigenvalue.
Wei Wang   +3 more
doaj   +1 more source

Nonconvex Penalized Regularization for Robust Sparse Recovery in the Presence of $S\alpha S$ Noise

open access: yesIEEE Access, 2018
Nonconvex penalties have recently received considerable attention in sparse recovery based on Gaussian assumptions. However, many sparse recovery problems occur in the presence of impulsive noises. This paper is concerned with the analysis and comparison
Yunyi Li   +5 more
doaj   +1 more source

Sparse Learning of the Disease Severity Score for High-Dimensional Data

open access: yesComplexity, 2017
Learning disease severity scores automatically from collected measurements may aid in the quality of both healthcare and scientific understanding.
Ivan Stojkovic, Zoran Obradovic
doaj   +1 more source

Operational Properties of SCN Function, Optimization Condition, and Exactness of Penalty Function for SCN Optimization

open access: yesJournal of Mathematics
This paper defines a strong convertible nonconvex (SCN) function for solving the unconstrained optimization problems with the nonconvex or nonsmooth (nondifferentiable) function.
Min Jiang   +3 more
doaj   +1 more source

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