Results 31 to 40 of about 118,790 (360)

A modified nonlinear conjugate gradient method for unconstrained optimization

open access: hybrid, 2015
Ibrahim Mohammed Sulaiman   +4 more
openalex   +2 more sources

Preconditioned Nonlinear Conjugate Gradient Method for Real-time Interior-point Hyperelasticity [PDF]

open access: yesInternational Conference on Computer Graphics and Interactive Techniques
The linear conjugate gradient method is widely used in physical simulation, particularly for solving large-scale linear systems derived from Newton’s method.
Xing Shen   +3 more
semanticscholar   +1 more source

New conjugacy condition with pair-conjugate gradient methods for unconstrained optimization [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2009
Conjugate gradient methods are wildly used for unconstrained optimization especially when the dimension is large. In this paper we propose a new kind of nonlinear conjugate gradient methods which on the study of Dai and Liao (2001), the new idea is how ...
Abbas Al-Bayati, Huda Ahmed
doaj   +1 more source

Two Versions of the Spectral Nonlinear Conjugate Gradient Method

open access: yesAl-Mustansiriyah Journal of Science, 2018
The nonlinear conjugate gradient method is widely used to solve unconstrained optimization problems. In this paper the development of different versions of nonlinear conjugate gradient methods with global convergence properties proved.
Basim A. Hassan, Haneen A. Alashoor
doaj   +1 more source

Spectral CG Algorithm for Solving Fuzzy Non-linear Equations

open access: yesIraqi Journal for Computer Science and Mathematics, 2022
The non-linear conjugate gradient method is a very effective technique for addressing Large-Scale minimization problems, and it has a wide range of applications in Mathematics, Chemistry, Physics, Engineering, and Medicine, etc.
Mezher M. Abed   +2 more
doaj   +1 more source

Improved conjugate gradient method for nonlinear system of equations

open access: yesComputational and Applied Mathematics, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
M. Waziri, A. Yusuf, A. Abubakar
semanticscholar   +3 more sources

New A hybrid conjugate gradient Fletcher-Reeves and Polak-Ribiere algorithm for unconstrained optimization

open access: yesTikrit Journal of Pure Science, 2023
In this Research we developed a New Hybrid method of conjugate gradient type, this Method depends basically on combining Fletcher-Reeves and Polak-Ribiere algorithms by using spectral direction conjugate algorithm, which is developed by Yang Z & Kairong
Khalil K. Abbo, Hisham M. Khudhur
doaj   +1 more source

A three-parameter family of nonlinear conjugate gradient methods [PDF]

open access: yesMathematics of Computation, 2000
Summary: We propose a three-parameter family of conjugate gradient methods for unconstrained optimization. The three-parameter family of methods not only includes the already existing six practical nonlinear conjugate gradient methods, but subsumes some other families of nonlinear conjugate gradient methods as its subfamilies.
Dai, Y. H., Yuan, Y.
openaire   +1 more source

On nonlinear generalized conjugate gradient methods

open access: yesNumerische Mathematik, 1994
A nonlinear generalized conjugate gradient method for solving systems of nonlinear equations (including nonsymmetric Jacobian) is presented and analysed. If the Jacobian is positive definite and the Hessian is bounded then the method converges globally to one of the solutions. Also, preconditioned nonlinear methods of three types are discussed.
Axelsson, A.O.H., Chronopoulos, A.T.
openaire   +4 more sources

A Modified Conjugate Gradient Approach for Reliability-Based Design Optimization

open access: yesIEEE Access, 2020
To improve the efficiency of structural reliability-based design optimization (RBDO) based on the performance measure approach (PMA), a modified conjugate gradient approach (MCGA) is proposed for RBDO with nonlinear performance function.
Zhiming Wang, Yafei Zhang, Yalong Song
doaj   +1 more source

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