Results 21 to 30 of about 13,831 (172)

An enforced essential boundary condition by penalty method in the element-free Galerkin (EFG) methods

open access: yesVietnam Journal of Mechanics, 2009
A meshless approach to the analysis of two-dimensional elasticity problems by the Element-Free Galerkin (EFG) method is presented. This method is based on moving least squares approximant (MLS).
Nguyen Hoai Son
doaj   +1 more source

Solution to nonconvex optimization problems using exact penalty functions [PDF]

open access: yes, 2014
Для невыпуклых задач оптимизации известные методы, использующие точные штрафные функции, не всегда гарантируют сходимость к допустимому решению. В работе предлагается подход, позволяющий при определенных условиях преодолевать такие проблемы.
Лаптин, Ю.П.
core   +5 more sources

Extended Penalty Coefficients For Elimination The Locking Effects In Moderately Thick Beam And Plate Finite Elements

open access: yesArchives of Civil Engineering, 2014
The present paper is dedicated to presentation and energy verification of the methods of stabilization the strain energy by penalty coefficients. Verification of the methods is based on the consistency and ellipticity conditions to be satisfied by the ...
Gilewski W.
doaj   +1 more source

New Exact Penalty Functions for Nonlinear Constrained Optimization Problems [PDF]

open access: yes, 2020
For two kinds of nonlinear constrained optimization problems, we propose two simple penalty functions, respectively, by augmenting the dimension of the primal problem with a variable that controls the weight of the penalty terms.
Wenling Zhao, Bingzhuang Liu
core  

A Derivative-Free Algorithm for Constrained Global Optimization Based on Exact Penalty Functions [PDF]

open access: yes, 2015
Constrained global optimization problems can be tackled by using exact penalty approaches. In a preceding paper, we proposed an exact penalty algorithm for constrained problems which combines an unconstrained global minimization tech- nique for ...
Gianni Pillo   +6 more
core   +1 more source

A new model for the multi-mode resource-constrained project scheduling problem with discount cash flows [PDF]

open access: yesMuṭāli̒āt-i Mudīriyyat-i Ṣan̒atī, 2015
This paper presents a mathematical model for the multi-mode resource-constrained project scheduling problem with maximizing the net present value of project. The proposed model is inspired by MRCPSP-GPR.
Amine Keramaty   +2 more
doaj  

Computational Optimal Boundary Control for Water Pressure Suppression Arising in a Fluid Flow System Modeled by Hyperbolic PDEs

open access: yesIEEE Access, 2019
In this paper, we propose an efficient computational boundary control strategy for reducing water pressure shock effects generated by the suddenly operation of the valve closure located at the end of a fluid flow pipeline.
Zhigang Ren, Tehuan Chen, Zhijia Zhao
doaj   +1 more source

New Conditions for Exactness of a Simple Penalty Function [PDF]

open access: yesSIAM Journal on Control, 1973
We consider penalty function methods for finding the maximum of a function f over the set \[ S = \{ x \in R^n :g_i (x) \leqq 0{\text{ for }}i = 1, \cdots ,m{\text{ and }}h_j (x) = 0{\text{ for }}j = 1, \cdots ,p\} . \] New conditions, extending earlier work done by Pietrzykowski, are presented under which the penalty function \[ P(x,\mu ) = \mu f(x) - \
openaire   +2 more sources

First- and second-order necessary conditions via exact penalty functions [PDF]

open access: yes, 2015
In this paper, we study first- and second-order necessary conditions for nonlinear programming problems from the viewpoint of exact penalty functions.
Yang, XQ, Meng, KW
core   +1 more source

Parsimonious Kernel Fisher Discrimination [PDF]

open access: yes, 2007
By applying recent results in optimization transfer, a new algorithm for kernel Fisher Discriminant Analysis is provided that makes use of a non-smooth penalty on the coefficients to provide a parsimonious solution.
Harrison, Robert F.   +5 more
core   +1 more source

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