Results 1 to 10 of about 124,946 (301)

A Combined Conjugate Gradient Quasi-Newton Method with Modification BFGS Formula

open access: yesInternational Journal of Analysis and Applications, 2023
The conjugate gradient and Quasi-Newton methods have advantages and drawbacks, as although quasi-Newton algorithm has more rapid convergence than conjugate gradient, they require more storage compared to conjugate gradient algorithms.
Mardeen Sh. Taher, Salah G. Shareef
doaj   +3 more sources

Quasi-Newton’s method for multiobjective optimization

open access: yesJournal of Computational and Applied Mathematics, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
exaly   +3 more sources

An Approximate Quasi-Newton Bundle-Type Method for Nonsmooth Optimization [PDF]

open access: yesAbstract and Applied Analysis, 2013
An implementable algorithm for solving a nonsmooth convex optimization problem is proposed by combining Moreau-Yosida regularization and bundle and quasi-Newton ideas. In contrast with quasi-Newton bundle methods of Mifflin et al.
Jie Shen, Li-Ping Pang, Dan Li
doaj   +2 more sources

Continual Learning with Quasi-Newton Methods [PDF]

open access: yesIEEE Access, 2021
<p>In this paper, we propose CSQN, a new Continual Learning (CL) method which considers Quasi-Newton methods, more specifically, Sampled Quasi-Newton methods, to extend EWC.</p> <p>EWC uses a Bayesian framework to estimate which parameters are important to previous tasks, and it punishes changes made to these parameters.
Vander Eeckt, Steven, Van Hamme, Hugo
openaire   +3 more sources

Studies on modified limited-memory BFGS method in full waveform inversion

open access: yesFrontiers in Earth Science, 2023
Full waveform inversion (FWI) is a non-linear optimization problem based on full-wavefield modeling to obtain quantitative information of subsurface structure by minimizing the difference between the observed seismic data and the predicted wavefield. The
Meng-Xue Dai   +3 more
doaj   +1 more source

Partial Davidon, Fletcher and Powell (DFP) of quasi newton method for unconstrained optimization

open access: yesTikrit Journal of Pure Science, 2023
The nonlinear Quasi-newton methods is widely used in unconstrained optimization. However, In this paper, we developing new quasi-Newton method for solving unconstrained optimization problems.
Basheer M. Salih   +2 more
doaj   +1 more source

Partial Pearson-two (PP2) of quasi newton method for unconstrained optimization

open access: yesTikrit Journal of Pure Science, 2023
In this paper, we developing new quasi-Newton method for solving unconstrained optimization problems .The nonlinear Quasi-newton methods is widely used in unconstrained optimization[1]. However,.
Basheer M. Salih   +2 more
doaj   +1 more source

Performance investigation of quasi-Newton-based parallel nonlinear FEM for large-deformation elastic-plastic analysis over 100 thousand degrees of freedom

open access: yesMechanical Engineering Journal, 2021
Quasi-Newton-based nonlinear finite element methods were extensively studied in the 1970s and 1980s. However, they have almost disappeared due to their poorer convergence performance than the Newton-Raphson method.
Yasunori YUSA   +2 more
doaj   +1 more source

Decentralized Quasi-Newton Methods [PDF]

open access: yesIEEE Transactions on Signal Processing, 2017
We introduce the decentralized Broyden-Fletcher-Goldfarb-Shanno (D-BFGS) method as a variation of the BFGS quasi-Newton method for solving decentralized optimization problems. The D-BFGS method is of interest in problems that are not well conditioned, making first order decentralized methods ineffective, and in which second order information is not ...
Mark Eisen   +2 more
openaire   +2 more sources

Faster Stochastic Quasi-Newton Methods [PDF]

open access: yesIEEE Transactions on Neural Networks and Learning Systems, 2022
Stochastic optimization methods have become a class of popular optimization tools in machine learning. Especially, stochastic gradient descent (SGD) has been widely used for machine learning problems such as training neural networks due to low per-iteration computational complexity.
Qingsong Zhang   +3 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy