Results 11 to 20 of about 114,505 (261)

Topological aspects in vector optimization problems

open access: yesVìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Modelûvannâ, 2009
In this paper, we study vector optimization problems in partially ordered Banach spaces. We suppose that an objective mapping possesses a weakened property of lower semicontinuity and make no assumptions on the interior of the ordering cone.
P. I. Kogut, R. Manzo, I. V. Nechay
doaj   +1 more source

On Nondifferentiable and Nonconvex Vector Optimization Problems [PDF]

open access: yesJournal of Optimization Theory and Applications, 2000
In the past, vector variational inequalities and their generalizations have been used as a tool to solve vector optimization problems. The authors prove equivalence among Minty vector variational-like inequality, Stampacchia vector variational inequality, both for subdifferentiable functions and nondifferentiable nonconvex vector optimization problems.
Ansari, Q. H., Yao, J. C.
openaire   +1 more source

Existence of Solutions for Nonconvex and Nonsmooth Vector Optimization Problems

open access: yesJournal of Inequalities and Applications, 2008
We consider the weakly efficient solution for a class of nonconvex and nonsmooth vector optimization problems in Banach spaces. We show the equivalence between the nonconvex and nonsmooth vector optimization problem and the vector variational-like ...
Nan-Jing Huang   +2 more
doaj   +2 more sources

A New Gap Function for Vector Variational Inequalities with an Application

open access: yesJournal of Applied Mathematics, 2013
We consider a vector variational inequality in a finite-dimensional space. A new gap function is proposed, and an equivalent optimization problem for the vector variational inequality is also provided.
Hui-qiang Ma   +3 more
doaj   +1 more source

Robustness Beamforming Algorithms [PDF]

open access: yesJournal of Intelligent Procedures in Electrical Technology, 2014
Adaptive beamforming methods are known to degrade in the presence of steering vector and covariance matrix uncertinity. In this paper, a new approach is presented to robust adaptive minimum variance distortionless response beamforming make robust against
Sajad Dehghani, Naser Parhizgar
doaj   +2 more sources

Artificial Neural Networks Multicriteria Training Based on Graphics Processors

open access: yesEngineering Proceedings, 2023
The report considers the task of training a multilayer perceptron, formulated as a problem of multiobjective optimization under uncertainty. To solve this problem, the principle of vector minimax was used.
Vladimir A. Serov   +5 more
doaj   +1 more source

On a class of vector optimization problems with a variational approach

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2014
A class of vector optimization problems is considered. In particular, we reformulate this problem by means of a suitable vector variational inequality, involving the normal cone operator to the adjusted sublevel sets.
Maria B. Donato   +2 more
doaj   +1 more source

Upper Hölder continuity of parametric vector optimization problems

open access: yesJournal of Inequalities and Applications, 2016
This paper is concerned with upper Hölder continuity and Hölder calmness of a perturbed vector optimization problem. We establish some new sufficient conditions for upper Hölder continuity and Hölder calmness of the perturbed solution mappings and the ...
Xian-Fu Hu, Xiao-Wei Xue
doaj   +1 more source

Energy‐efficiency hybrid beamforming architecture design for MIMO network

open access: yesElectronics Letters, 2022
This letter investigates the hybrid beamforming architecture design for MIMO network, where the connection between each antenna and each radio frequency chain is controlled by a switch. The optimization of the switch‐controlled connection state vector is
Kuo Cao, Jiao Zhang, Jun Xiong
doaj   +1 more source

A Hybrid Search Model for Constrained Optimization

open access: yesDiscrete Dynamics in Nature and Society, 2022
This paper proposes a hybrid model based on decomposition for constrained optimization problems. Firstly, a constrained optimization problem is transformed into a biobjective optimization problem.
Xiaoli Gao   +3 more
doaj   +1 more source

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