Results 41 to 50 of about 245,277 (249)

An efficient homogenization method using the trigonometric interpolation and the fast fourier transform

open access: yesVietnam Journal of Mechanics, 2011
This study focuses on formulation of the Augmented Lagrangian and application of the Uzawa's algorithm to solve the homogenization problem of microscopic periodic media as in composites.
Ngoc-Trung Nguyen   +2 more
doaj   +1 more source

Power management in a hydrothermal system considering maintenance using Lagrangian relaxation and augmented Lagrangian methods

open access: yesAlexandria Engineering Journal, 2022
The maintenance of power system equipment, specifically, the maintenance of generating units, is implicitly related to the reliability and economic operation of the power system.
M.R. Qader
doaj   +1 more source

Integrated Routing and Network Flow Control Embracing Two Layers of TCP/IP Networks – Methodological Issues

open access: yesJournal of Telecommunications and Information Technology, 2012
A cross-layer network optimization problem is considered. It involves network and transport layers, treating both routing and flows as decision variables.
Andrzej Karbowski
doaj   +1 more source

Iteration Complexity of an Inner Accelerated Inexact Proximal Augmented Lagrangian Method Based on the Classical Lagrangian Function [PDF]

open access: yesSIAM Journal on Optimization, 2020
This paper establishes the iteration-complexity of an inner accelerated inexact proximal augmented Lagrangian (IAIPAL) method for solving linearly-constrained smooth nonconvex composite optimization problems that is based on the classical augmented ...
J. Melo, R. Monteiro, Weiwei Kong
semanticscholar   +1 more source

Augmented Lagrangian Method for Constrained Nuclear Density Functional Theory [PDF]

open access: yes, 2010
The augmented Lagrangiam method (ALM), widely used in quantum chemistry constrained optimization problems, is applied in the context of the nuclear Density Functional Theory (DFT) in the self-consistent constrained Skyrme Hartree-Fock-Bogoliubov (CHFB ...
A. Baran   +34 more
core   +2 more sources

Dual-Augmented Lagrangian Method for Efficient Sparse Reconstruction [PDF]

open access: yesIEEE Signal Processing Letters, 2009
We propose an efficient algorithm for sparse signal reconstruction problems. The proposed algorithm is an augmented Lagrangian method based on the dual sparse reconstruction problem. It is efficient when the number of unknown variables is much larger than the number of observations because of the dual formulation.
Tomioka, R., Sugiyama, M.
openaire   +2 more sources

A fast constrained image segmentation algorithm

open access: yesResults in Applied Mathematics, 2020
Normalized cut or Ncut has been one of the most widely used models for image processing. A constraint can also be included in the framework of Ncut to represent a priori information for an effective image segmentation.
Iván Ojeda-Ruiz, Young-Ju Lee
doaj   +1 more source

An interior point method for isogeometric contact [PDF]

open access: yes, 2014
Cataloged from PDF version of article.. The interior point method is applied to frictionless contact mechanics problems and is shown to be a viable alternative to the augmented Lagrangian approach.
Abdalla, M. M., Gurdal, Z., Temizer, I.
core   +1 more source

On the complexity of an augmented Lagrangian method for nonconvex optimization [PDF]

open access: yesIMA Journal of Numerical Analysis, 2019
In this paper we study the worst-case complexity of an inexact augmented Lagrangian method for nonconvex constrained problems. Assuming that the penalty parameters are bounded we prove a complexity bound of $\mathcal{O}(|\log (\epsilon )|)$ outer ...
G. N. Grapiglia, Ya-Xiang Yuan
semanticscholar   +1 more source

Quantizing non-Lagrangian gauge theories: an augmentation method [PDF]

open access: yes, 2006
We discuss a recently proposed method of quantizing general non-Lagrangian gauge theories. The method can be implemented in many different ways, in particular, it can employ a conversion procedure that turns an original non-Lagrangian field theory in $d$
A.S. Cattaneo   +9 more
core   +2 more sources

Home - About - Disclaimer - Privacy