Results 41 to 50 of about 273,786 (182)

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

Bio-Inspired Ant Lion Optimizer for a Constrained Petroleum Product Scheduling

open access: yesIEEE Access, 2022
Real-world optimization problems demand sophisticated algorithms. Over the years bio-inspired approach, a subset of computational intelligence has demonstrated remarkable success in real-world use cases, especially where exact or deterministic algorithms
Chinwe Peace Igiri   +4 more
doaj   +1 more source

Evaluation of the Addition of Firth’s Penalty Term to the Bradley-Terry Likelihood [PDF]

open access: yes, 2016
A major shortcoming of the Bradley-Terry model is that the maximum likelihood estimates are infinite-valued in the presence of separation and may be unreliable when data are nearly separated.
Meyvisch, Paul
core   +2 more sources

A survey of methods for discrete optimum struct ural design

open access: yesComputer Assisted Methods in Engineering and Science, 2023
The available methods and solutions of problems in discrete optimum structural design are reviewed. They are classified into the following categories: branch and bound methods, dual approach, enumeration methods, penalty function approach, simulated ...
Jacek Bauer
doaj  

Existence of augmented Lagrange multipliers: reduction to exact penalty functions and localization principle

open access: yes, 2018
In this article, we present new general results on existence of augmented Lagrange multipliers. We define a penalty function associated with an augmented Lagrangian, and prove that, under a certain growth assumption on the augmenting function, an ...
Dolgopolik, M. V.
core   +1 more source

Convergence study and optimal weight functions of an explicit particle method for the incompressible Navier--Stokes equations [PDF]

open access: yes, 2019
To increase the reliability of simulations by particle methods for incompressible viscous flow problems, convergence studies and improvements of accuracy are considered for a fully explicit particle method for incompressible Navier--Stokes equations. The
Imoto, Y., Nishiura, D., Tsuzuki, S.
core   +2 more sources

A Nonconvex Proximal Bundle Method for Nonsmooth Constrained Optimization

open access: yesComplexity
An implementable algorithm for solving nonsmooth nonconvex constrained optimization is proposed by combining bundle ideas, proximity control, and the exact penalty function.
Jie Shen, Fang-Fang Guo, Na Xu
doaj   +1 more source

Dynamic flow optimization for a three-loop fluid heat dissipation system in spacecraft

open access: yesCase Studies in Thermal Engineering, 2022
Dynamic optimization of the fluid loop is critical for the active thermal control system (ATCS) for future spacecraft. In this paper, the dynamic heat transfer model of a three-loop fluid heat dissipation system is constructed by the transient heat ...
Tong Zheng, Li-Ping Zhao
doaj   +1 more source

Exact augmented Lagrangian functions for nonlinear semidefinite programming

open access: yes, 2018
In this paper, we study augmented Lagrangian functions for nonlinear semidefinite programming (NSDP) problems with exactness properties. The term exact is used in the sense that the penalty parameter can be taken appropriately, so a single minimization ...
Fukuda, Ellen H., Lourenço, Bruno F.
core   +1 more source

A second derivative SQP method: local convergence [PDF]

open access: yes, 2008
In [19], we gave global convergence results for a second-derivative SQP method for minimizing the exact ℓ1-merit function for a fixed value of the penalty parameter. To establish this result, we used the properties of the so-called Cauchy step, which was
Gould, Nicholas I. M.   +1 more
core  

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