Results 11 to 20 of about 178,281 (234)

A Globally Convergence Spectral Conjugate Gradient Method for Solving Unconstrained Optimization Problems [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2013
In this paper, a modified spectral conjugate gradient method for solving unconstrained optimization problems is studied, which has sufficient descent direction and global convergence with an inexact line searches. The Fletcher-Reeves restarting criterion
Basim Hassan
doaj   +1 more source

Anew Conjugate Gradient Algorithm Based on The (Dai-Liao) Conjugate Gradient Method

open access: yesTikrit Journal of Pure Science, 2020
In this paper we can derive a new search direction of conjugating gradient method associated with (Dai-Liao method ) the new algorithm becomes converged by assuming some hypothesis.
SHAHER QAHTAN HUSSEIN   +2 more
doaj   +1 more source

A Modified Hybrid Conjugate Gradient Method for Unconstrained Optimization

open access: yesJournal of Mathematics, 2021
The nonlinear conjugate gradient algorithms are a very effective way in solving large-scale unconstrained optimization problems. Based on some famous previous conjugate gradient methods, a modified hybrid conjugate gradient method was proposed.
Minglei Fang   +3 more
doaj   +1 more source

An accelerated conjugate gradient method for the Z-eigenvalues of symmetric tensors

open access: yesAIMS Mathematics, 2023
We transform the Z-eigenvalues of symmetric tensors into unconstrained optimization problems with a shifted parameter. An accelerated conjugate gradient method is proposed for solving these unconstrained optimization problems.
Mingyuan Cao   +3 more
doaj   +1 more source

A Three-Term Conjugate Gradient Method with Sufficient Descent Property for Unconstrained Optimization [PDF]

open access: yes, 2011
Conjugate gradient methods are widely used for solving large-scale unconstrained optimization problems, because they do not need the storage of matrices.
Hager W. W.   +4 more
core   +1 more source

A conjugate gradient minimisation approach to generating holographic traps for ultracold atoms [PDF]

open access: yes, 2014
Direct minimisation of a cost function can in principle provide a versatile and highly controllable route to computational hologram generation. However, to date iterative Fourier transform algorithms have been predominantly used.
Bruce, Graham D.   +3 more
core   +2 more sources

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

A Dai-Liao-type projection method for monotone nonlinear equations and signal processing

open access: yesDemonstratio Mathematica, 2022
In this article, inspired by the projection technique of Solodov and Svaiter, we exploit the simple structure, low memory requirement, and good convergence properties of the mixed conjugate gradient method of Stanimirović et al.
Ibrahim Abdulkarim Hassan   +4 more
doaj   +1 more source

Direct numerical simulation of turbulence on a Connection Machine CM-5 [PDF]

open access: yes, 1995
In this paper we report on our first experiences with direct numerical simulation of turbulent flow on a 16-node Connection Machine CM-5. The CM-5 has been programmed at a global level using data parallel Fortran.
A.E.P. Veldman   +9 more
core   +4 more sources

A Penalized Linear and Nonlinear Combined Conjugate Gradient Method for the Reconstruction of Fluorescence Molecular Tomography

open access: yesInternational Journal of Biomedical Imaging, 2007
Conjugate gradient method is verified to be efficient for nonlinear optimization problems of large-dimension data. In this paper, a penalized linear and nonlinear combined conjugate gradient method for the reconstruction of fluorescence molecular ...
Shang Shang   +4 more
doaj   +1 more source

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