Results 1 to 10 of about 12,439,104 (289)

Zeroth-Order Riemannian Adaptive Regularized Proximal Quasi-Newton Optimization Method

open access: yesAxioms
Recently, the adaptive regularized proximal quasi-Newton (ARPQN) method has demonstrated a strong performance in solving composite optimization problems over the Stiefel manifold.
Yinpu Ma   +3 more
doaj   +1 more source

A quasi-Newton proximal splitting method

open access: yes, 2012
A new result in convex analysis on the calculation of proximity operators in certain scaled norms is derived. We describe efficient implementations of the proximity calculation for a useful class of functions; the implementations exploit the piece-wise linear nature of the dual problem.
Becker, Stephen, Fadili, Jalal M.
openaire   +4 more sources

An Efficient Limited Memory Multi-Step Quasi-Newton Method

open access: yesMathematics
This paper is dedicated to the development of a novel class of quasi-Newton techniques tailored to address computational challenges posed by memory constraints. Such methodologies are commonly referred to as “limited” memory methods.
Issam A. R. Moghrabi, Basim A. Hassan
doaj   +1 more source

Fatigue Life Prediction of Coiled Tubing Based on Optimized BP Neural Network

open access: yesShiyou jixie, 2023
When the standard BP neural network is used to predict the fatigue life of coiled tubing,local minimum is easily fallen into and training time is too long.To solve these problems,the momental gradient descent method,quasi-Newton algorithm and one-step ...
Dou Yihua   +4 more
doaj  

Ajuste do modelo de Schumacher e Hall e aplicação de redes neurais artificiais para estimar volume de árvores de eucalipto Adjustment of the Schumacher and Hall model and application of artificial neural networks to estimate volume of eucalypt trees

open access: yesRevista Árvore, 2009
Objetivou-se, neste trabalho, avaliar o ajuste do modelo volumétrico de Schumacher e Hall por diferentes algoritmos, bem como a aplicação de redes neurais artificiais para estimação do volume de madeira de eucalipto em função do diâmetro a 1,30 m do solo
Mayra Luiza Marques da Silva   +3 more
doaj   +1 more source

Forward Kinematics Analysis of 2RUS/RRS Parallel Mechanism

open access: yesJixie chuandong, 2018
The iterative search method( Newton or Quasi-Newton) is an important numerical method for solving the forward kinematics( FK) problem of parallel mechanisms. Due to the extremely displacement singularity in the limbs,the search space is easy to be out of
Geng Mingchao   +3 more
doaj  

Computing the Projection on the Intersection of Linear Equality and Cardinality Constraints

open access: yesIEEE Access
In this paper, we introduce a novel approach to solve the vector projection problem under linear equality and cardinality constraints, termed the Quasi-Newton Lagrangian method. This approach employs a Lagrangian transformation to address linear equality
Xiao-Jing Wang, Zhen-Sheng Yu
doaj   +1 more source

Numerical benchmarking of dual decomposition-based optimization algorithms for distributed model predictive control

open access: yesResults in Control and Optimization
This paper presents a benchmark study of dual decomposition-based distributed optimization algorithms applied to constraint-coupled model predictive control problems.
Vassilios Yfantis   +2 more
doaj   +1 more source

Minimizing electric vehicle charging costs in the microgrid using the BFGS Quasi-Newton Method [PDF]

open access: yesE3S Web of Conferences
Electric vehicles (EVs) offer a compelling solution for mitigating pollution, addressing environmental alterations, and enhancing energy security.
Badugu Jayababu   +3 more
doaj   +1 more source

Generalized Newton’s method for solving nonlinear and nondifferentiable algebraic systems

open access: yesJournal of Numerical Analysis and Approximation Theory, 2015
In this paper a model based on non-smooth equations is proposed for solving a non-linear and non-differential equation obtained by discretization of a quasi-variational inequality that models the frictional contact problem. The main aim of this paper is
Nicolae Pop
doaj   +2 more sources

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