Results 131 to 140 of about 7,882 (230)

First Results of Atmospheric Composition Retrieval using IASI-METOP and AIRS-AQUA Data

open access: yes, 2009
Regularization methods for the inversion of infrared nadir sounding observations are currently investigated. An iterative Runge-Kutta type method for nonlinear ill-posed problems has been implemented and its performance has been studied using synthetic ...
Doicu, Adrian   +5 more
core  

On Tikhonov Regularization, Bias and Variance in Nonlinear System Identification

open access: yes, 1997
this paper we study Tikhonov regularization (Tikhonov and Arsenin 1977). While Tikhonov regularization has had significant impact on several branches of science and engineering dealing with ill-posed and inverse problems, in particular modeling and ...
Tor A. Johansen
core  

Generalized Tikhonov regularization method for an inverse boundary value problem of the fractional elliptic equation

open access: yesBoundary Value Problems
This research studies the inverse boundary value problem for fractional elliptic equation of Tricomi–Gellerstedt–Keldysh type and obtains a condition stability result.
Xiao Zhang
doaj   +1 more source

A modified Tikhonov regularization for linear operator equations

open access: yes, 2005
We construct with the aid of regularizing filters a new class of improved regularization methods, called modified Tikhonov regularization (MTR), for solving ill-posed linear operator equations.

core   +1 more source

The Application of Piecewise Regularization Reconstruction to the Calibration of Strain Beams

open access: yesSensors
Standard beams are mainly used for the calibration of strain sensors using their load reconstruction models. However, as an ill-posed inverse problem, the solution to these models often fails to converge, especially when dealing with dynamic loads of ...
Jingjing Liu   +7 more
doaj   +1 more source

Tikhonov regularization versus scale space : a new result

open access: yes, 2004
Scale space theory and Tikhonov regularization techniques are close-knit. In previous studies qualitative analogies andformal relations had already been found, but none of these established both an exact as well as operational connection.
Duits, R Remco   +8 more
core   +1 more source

Regularización de Tikhonov para estimar los parámetros de un modelo de un horno de arco

open access: yesTecnura, 2013
In this paper, we present a methodology for estimating the parameters of a model for an electrical arc furnace by using Tikhonov regularization. Tikhonov regularization is one of the most widely employed methods for regularization. The model proposed for
Jesser James Marulanda Durango   +3 more
doaj  

Introducing Regularization Constraints Into Combination of GRACE Monthly Terrestrial Water Storage Changes

open access: yesGeophysical Research Letters
Gravity Recovery and Climate Experiment (GRACE) observation data processed by various institutions yields somewhat different spherical harmonic solutions, which are further used to derive terrestrial water storage (TWS) changes.
Wei You   +3 more
doaj   +1 more source

ADAPTIVE NEURAL STABILIZATION OF ILL-POSED SPECTRAL PROBLEMS

open access: yesКомпютерні системи та інформаційні технології
The article develops a mathematical model of adaptive neural regularization and creates an algorithmic method for its implementation with a neural network for dynamic determination of the regularization parameter.
Федір САЙБЕРТ   +1 more
doaj   +1 more source

Tikhonov regularization with nonnegativity constraint

open access: yes, 2008
. Many numerical methods for the solution of ill-posed problems are based on Tikhonov regularization. Recently, Rojas and Steihaug [15] described a barrier method for computing nonnegative Tikhonov-regularized approximate solutions of linear discrete ill-
B. Lewis   +3 more
core  

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