Results 31 to 40 of about 265,361 (282)

Two New Conjugate Gradient Methods for Unconstrained Optimization

open access: yesComplexity, 2020
The conjugate gradient method is very effective in solving large-scale unconstrained optimal problems. In this paper, on the basis of the conjugate parameter of the conjugate descent (CD) method and the second inequality in the strong Wolfe line search ...
Meixing Liu, Guodong Ma, Jianghua Yin
doaj   +1 more source

Two efficient modifications of AZPRP conjugate gradient method with sufficient descent property

open access: yesJournal of Inequalities and Applications, 2022
The conjugate gradient method can be applied in many fields, such as neural networks, image restoration, machine learning, deep learning, and many others.
Zabidin Salleh   +2 more
doaj   +1 more source

A New Modified Conjugate Gradient for Nonlinear Minimization Problems

open access: yesScience Journal of University of Zakho, 2022
The conjugate gradient is a highly effective technique to solve the unconstrained nonlinear minimization problems and it is one of the most well-known methods. It has a lot of applications.
Hussein Ageel Khatab, Salah G. Sharef
doaj   +1 more source

A new hybrid conjugate gradient method for dynamic force reconstruction

open access: yesAdvances in Mechanical Engineering, 2019
A new hybrid conjugate gradient method is proposed in this article based on the gradient operator and applied to the structural dynamic load identification problem.
Linjun Wang   +4 more
doaj   +1 more source

New Scale Dai-Yaun Conjugate Gradient Method for Unconstrained Optimization [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2013
Conjugate gradient algorithm is widely used for solving large-scale unconstrained optimization problems, because they do not need the storage of matrices.
Hamsa Chilmerane
doaj   +1 more source

Smoothed Analysis for the Conjugate Gradient Algorithm [PDF]

open access: yes, 2016
The purpose of this paper is to establish bounds on the rate of convergence of the conjugate gradient algorithm when the underlying matrix is a random positive definite perturbation of a deterministic positive definite matrix.
Menon, Govind, Trogdon, Thomas
core   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva   +10 more
wiley   +1 more source

A Novel hybridization of CG-techniques for Solving Unconstrained Optimization Problems

open access: yesWasit Journal for Pure Sciences
Conjugate gradient methods are an extremely helpful way for handling large scale non-linear optimization issues. In this paper, based on the three famous Dai-yuan (DY), Liu–Storey (LS)and Conjugate-Descent (CD) conjugate gradient methods, a new hybrid ...
Hawraz Jabbar
doaj   +1 more source

Hybrid Particle Swarm and Conjugate Gradient Optimization in Neural Network for Prediction of Suspended Particulate Matter [PDF]

open access: yesE3S Web of Conferences, 2019
The scope of this research is the use of artificial neural network models and meta-heuristic optimization of Particle Swarm Optimization (PSO) for the prediction of ambient air pollution parameter data at air quality monitoring stations in the city of ...
Warsito Budi   +3 more
doaj   +1 more source

Probabilistic Interpretation of Linear Solvers

open access: yes, 2014
This manuscript proposes a probabilistic framework for algorithms that iteratively solve unconstrained linear problems $Bx = b$ with positive definite $B$ for $x$.
Hennig, Philipp
core   +1 more source

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