Results 21 to 30 of about 1,802,858 (209)

A modified three-term HS conjugate gradient method for solving nonsmooth minimizations

open access: yesJournal of Hebei University of Science and Technology, 2018
To improve the efficiency for large-scale nonsmooth optimization problems and overcome the large storage requirements and complex computation of other algorithms, a modified HS conjugate gradient algorithm for nonsmooth optimization problems is proposed.
Yong LI, Songhua WANG
doaj   +1 more source

Proximal ADMM for nonconvex and nonsmooth optimization

open access: yesAutomatica, 2022
15 pges, 3 ...
Yu Yang 0008   +4 more
openaire   +4 more sources

Nonsmooth Optimization Control Based on a Sandwich Model with Hysteresis for Piezo–Positioning Systems

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2023
A nonsmooth optimization control (NOC) based on a sandwich model with hysteresis is proposed to control a micropositioning system (MPS) with a piezoelectric actuator (PEA).
Yang Sen   +3 more
doaj   +1 more source

Optimizing condition numbers [PDF]

open access: yes, 2009
In this paper we study the problem of minimizing condition numbers over a compact convex subset of the cone of symmetric positive semidefinite $n\times n$ matrices. We show that the condition number is a Clarke regular strongly pseudoconvex function.
Maréchal, Pierre, Ye, Jane
core   +1 more source

Minty Variational Principle for Nonsmooth Interval-Valued Vector Optimization Problems on Hadamard Manifolds

open access: yesMathematics, 2022
This article deals with the classes of approximate Minty- and Stampacchia-type vector variational inequalities on Hadamard manifolds and a class of nonsmooth interval-valued vector optimization problems.
Savin Treanţă   +2 more
doaj   +1 more source

Bundle methods for nonsmooth DC optimization

open access: yes, 2020
This chapter is devoted to algorithms for solving nonsmooth unconstrained difference of convex optimization problems. Different types of stationarity conditions are discussed and the relationship between sets of different stationary points (critical ...
Joki, Kaisa, Bagirov, Adil
core   +1 more source

Balanced Circular Packing Problems with Distance Constraints

open access: yesComputation, 2022
The packing of different circles in a circular container under balancing and distance conditions is considered. Two problems are studied: the first minimizes the container’s radius, while the second maximizes the minimal distance between circles, as well
Tetyana Romanova   +6 more
doaj   +1 more source

An interior-point method for nonlinear optimization problems with locatable and separable nonsmoothness

open access: yesEURO Journal on Computational Optimization, 2015
Many real-world optimization models comprise nonconvex and nonsmooth functions leading to very hard classes of optimization models. In this article, a new interior-point method for the special, but practically relevant class of optimization problems with
Martin Schmidt
doaj   +1 more source

Nonsmooth Optimization Techniques for Semisupervised Classification [PDF]

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2007
We apply nonsmooth optimization techniques to classification problems, with particular reference to the TSVM (Transductive Support Vector Machine) approach, where the considered decision function is nonconvex and nondifferentiable and then difficult to minimize.
Astorino A, FUDULI, Antonio
openaire   +3 more sources

Discrete gradient method : Derivative-free method for nonsmooth optimization [PDF]

open access: yes, 2008
A new derivative-free method is developed for solving unconstrained nonsmooth optimization problems. This method is based on the notion of a discrete gradient.
Bagirov, A. M.   +4 more
core   +1 more source

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