Results 21 to 30 of about 63,026 (172)

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   +1 more source

Non-linear carbon dioxide determination using infrared gas sensors and neural networks with Bayesian regularization [PDF]

open access: yes, 2009
Carbon dioxide gas concentration determination using infrared gas sensors combined with Bayesian regularizing neural networks is presented in this work.
Almeida   +27 more
core   +1 more source

The Levenberg-Marquardt-Type Methods for a Kind of Vertical Complementarity Problem

open access: yesJournal of Applied Mathematics, 2011
Two kinds of the Levenberg-Marquardt-type methods for the solution of vertical complementarity problem are introduced. The methods are based on a nonsmooth equation reformulation of the vertical complementarity problem for its solution.
Shou-qiang Du, Yan Gao
doaj   +1 more source

Bootstrap Resampling in Gompertz Growth Model with Levenberg–Marquardt Iteration

open access: yesJTAM (Jurnal Teori dan Aplikasi Matematika), 2022
Soybean plants have limited growth with a planting period of 12 weeks, which causes the observed sample to be very small. A small sample of soybean plant growth observations can be bias causes in the conclusion of prediction results on soybean plant ...
Fandi Rezian Pratama Gultom   +2 more
doaj   +1 more source

Fitting sediment rating curves using regression analysis: a case study of Russian Arctic rivers [PDF]

open access: yesProceedings of the International Association of Hydrological Sciences, 2015
Published suspended sediment data for Arctic rivers is scarce. Suspended sediment rating curves for three medium to large rivers of the Russian Arctic were obtained using various curve-fitting techniques.
N. I. Tananaev
doaj   +1 more source

Angle-resolved X-ray photoelectron spectroscopy (ARXPS) and a modified Levenberg-Marquardt fit procedure: a new combination for modeling thin layers [PDF]

open access: yes, 1990
The combination of angle-resolved X-ray photoelectron spectroscopy (ARXPS) and a modified Levenberg-Marquardt (LM) fit procedure has been used to study a native oxide layer on a clean Si(100) substrate.
Aarnink, W.A.M.   +2 more
core   +2 more sources

Optimization of LMBP high-speed railway wheel size prediction algorithm based on improved adaptive differential evolution algorithm

open access: yesInternational Journal of Distributed Sensor Networks, 2019
It is beneficial for maintenance department to make maintenance strategy and reduce maintenance cost to forecast the hidden danger index value. Based on the analysis of the research status of wheel-to-life prediction at home and abroad and the repair of ...
Yu Zhang   +3 more
doaj   +1 more source

Acceleration of Levenberg-Marquardt Training of Neural Networks with Variable Decay Rate [PDF]

open access: yes, 2003
In the application of the standard Levenherg-Marquardt training process of neural networks, error oscillations are frequently observed and they usually aggravate on approaching the required accuracy.
Au, FTK, Chen, TC, Han, DJ, Tham, LG
core   +1 more source

Nonsmooth Levenberg-Marquardt Type Method for Solving a Class of Stochastic Linear Complementarity Problems with Finitely Many Elements

open access: yesAlgorithms, 2016
Our purpose of this paper is to solve a class of stochastic linear complementarity problems (SLCP) with finitely many elements. Based on a new stochastic linear complementarity problem function, a new semi-smooth least squares reformulation of the ...
Zhimin Liu, Shouqiang Du, Ruiying Wang
doaj   +1 more source

Utilization of artificial intelligence approach for prediction of DLP values for abdominal CT scans: A high accuracy estimation for risk assessment

open access: yesFrontiers in Public Health, 2022
PurposeThis study aimed to evaluate Artificial Neural Network (ANN) modeling to estimate the significant dose length product (DLP) value during the abdominal CT examinations for quality assurance in a retrospective, cross-sectional study.MethodsThe ...
H. O. Tekin   +10 more
doaj   +1 more source

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