Results 11 to 20 of about 1,099,998 (291)

Enhancing Quasi-Newton Acceleration for Fluid-Structure Interaction

open access: yesMathematical and Computational Applications, 2022
We propose two enhancements of quasi-Newton methods used to accelerate coupling iterations for partitioned fluid-structure interaction. Quasi-Newton methods have been established as flexible, yet robust, efficient and accurate coupling methods of multi ...
Kyle Davis   +2 more
doaj   +2 more sources

New Results on Superlinear Convergence of Classical Quasi-Newton Methods [PDF]

open access: yesJ Optim Theory Appl, 2020
We present a new theoretical analysis of local superlinear convergence of classical quasi-Newton methods from the convex Broyden class. As a result, we obtain a significant improvement in the currently known estimates of the convergence rates for these ...
Anton Rodomanov, Y. Nesterov
semanticscholar   +2 more sources

An improved quasi-Newton equation on the quasi-Newton methods for unconstrained optimizations

open access: yesIndonesian Journal of Electrical Engineering and Computer Science, 2021
Quasi-Newton methods are a class of numerical methods for solving the problem of unconstrained optimization. To improve the overall  efficiency of resulting algorithms, we use the Quasi-Newton methods which is interesting for quasi-Newton equation.
Basim A. Hassan   +4 more
semanticscholar   +3 more sources

Matrix Transformations and Quasi-Newton Methods [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2007
We first recall some properties of infinite tridiagonal matrices considered as matrix transformations in sequence spaces of the forms sξ, sξ∘, sξ(c), or lp(ξ).
Boubakeur Benahmed   +2 more
doaj   +4 more sources

Quasi-Newton Methods, Motivation and Theory [PDF]

open access: yesSIAM Review, 1974
This paper is an attempt to motivate and justify quasi-Newton methods as useful modifications of Newton''s method for general and gradient nonlinear systems of equations.
J. Dennis, J. J. Moré
semanticscholar   +4 more sources

Continual Learning With Quasi-Newton Methods [PDF]

open access: yesIEEE Access, 2021
Catastrophic forgetting remains a major challenge when neural networks learn tasks sequentially. Elastic Weight Consolidation (EWC) attempts to address this problem by introducing a Bayesian-inspired regularization loss to preserve knowledge of ...
Steven Vander Eeckt, Hugo Van Hamme
doaj   +3 more sources

Machine Learning in Quasi-Newton Methods

open access: yesAxioms
In this article, we consider the correction of metric matrices in quasi-Newton methods (QNM) from the perspective of machine learning theory. Based on training information for estimating the matrix of the second derivatives of a function, we formulate a ...
Vladimir Krutikov   +4 more
doaj   +3 more sources

Provably Convergent Plug-and-Play Quasi-Newton Methods [PDF]

open access: yesSIAM Journal of Imaging Sciences, 2023
Plug-and-Play (PnP) methods are a class of efficient iterative methods that aim to combine data fidelity terms and deep denoisers using classical optimization algorithms, such as ISTA or ADMM, with applications in inverse problems and imaging.
Hong-Wei Tan   +3 more
semanticscholar   +1 more source

Online Learning Guided Curvature Approximation: A Quasi-Newton Method with Global Non-Asymptotic Superlinear Convergence [PDF]

open access: yesAnnual Conference Computational Learning Theory, 2023
Quasi-Newton algorithms are among the most popular iterative methods for solving unconstrained minimization problems, largely due to their favorable superlinear convergence property.
Rui-Chen Jiang   +2 more
semanticscholar   +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

Home - About - Disclaimer - Privacy