Results 1 to 10 of about 55,379 (247)

Levenberg-Marquardt Method for the Eigenvalue Complementarity Problem [PDF]

open access: yesThe Scientific World Journal, 2014
The eigenvalue complementarity problem (EiCP) is a kind of very useful model, which is widely used in the study of many problems in mechanics, engineering, and economics.
Yuan-yuan Chen, Yan Gao
doaj   +5 more sources

Hybrid Levenberg–Marquardt and weak-constraint ensemble Kalman smoother method [PDF]

open access: yesNonlinear Processes in Geophysics, 2016
The ensemble Kalman smoother (EnKS) is used as a linear least-squares solver in the Gauss–Newton method for the large nonlinear least-squares system in incremental 4DVAR.
J. Mandel   +4 more
doaj   +6 more sources

Accurate robot calibration via cascaded adaptive momentum LM and B-spline interpolated PSO [PDF]

open access: yesScientific Reports
To improve robotic positioning accuracy and enhance overall manufacturing precision, this paper proposes an adaptive momentum Levenberg–Marquardt cascaded B-spline interpolation particle swarm optimization (AMLM-BIPSO) algorithm for calibrating robotic ...
Dong Li, Yonghong Deng, Zhibin Li
doaj   +2 more sources

A variant of the Levenberg-Marquardt method with adaptive parameters for systems of nonlinear equations

open access: yesAIMS Mathematics, 2022
The Levenberg-Marquardt method is one of the most important methods for solving systems of nonlinear equations and nonlinear least-squares problems. It enjoys a quadratic convergence rate under the local error bound condition.
Lin Zheng, Liang Chen, Yanfang Ma
doaj   +1 more source

Applicability of Common Algorithms in Species–Area Relationship Model Fitting

open access: yesDiversity, 2022
The species–area relationship (SAR) describes a law of species richness changes as the sampling area varies. SAR has been studied for more than 100 years and is of great significance in the fields of biogeography, population ecology, and conservation ...
Zhidong Liu, Xiaoke Liu, Tsung-Jen Shen
doaj   +1 more source

Optimization of SLAM Graph Based on Optimization Levenberg-Marquardt Method

open access: yesJournal of Harbin University of Science and Technology, 2021
Aimed at the present situation of the visualSimultaneous Localization and Mapping technology of complex nonlinear optimization method of process,optimization of slow speed and low accuracy of optimization shortcomings,in the wide application of nonlinear
DAI Tian-hong, LI Zhi-cheng
doaj   +1 more source

A New Modified Levenberg–Marquardt Method for Systems of Nonlinear Equations

open access: yesJournal of Mathematics, 2023
Taking a new choice of the LM parameter λk=μkJkTFkδ with δ∈0,2, we give a new modified Levenberg–Marquardt method. Under the error bound condition c distw,S≤JwTFw which is weaker than the nonsingular of Jacobian Jw, we present that the new Levenberg ...
Liang Chen, Yanfang Ma
doaj   +1 more source

Improvement of Fuzzy Newton Power Flow Convergence

open access: yesEnergies, 2023
In order to address the convergence issue in fuzzy power flow calculations, this paper proposes an analytical approach based on the Levenberg–Marquardt method, aiming to improve the convergence of the fuzzy Newton power flow method.
Ligang Zhao   +5 more
doaj   +1 more source

Causative factors of construction and demolition waste generation in Iraq Construction Industry [PDF]

open access: yes, 2021
The construction industry has hurt the environment from the waste generated during construction activities. Thus, it calls for serious measures to determine the causative factors of construction waste generated.
Obaid, Maytham Kadhim
core   +1 more source

A smooth Levenberg-Marquardt method without nonsingularity condition for wLCP

open access: yesAIMS Mathematics, 2022
In this paper we consider the weighted Linear Complementarity Problem (wLCP). By using a smooth weighted complementarity function, we reformulate the wLCP as a smooth nonlinear equation and propose a Levenberg-Marquardt method to solve it.
Xiaorui He, Jingyong Tang
doaj   +1 more source

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