Results 11 to 20 of about 7,882 (230)

Extrapolation of Tikhonov regularization method

open access: yesMathematical Modelling and Analysis, 2010
We consider regularization of linear ill‐posed problem Au = f with noisy data fδ, ¦fδ - f¦≤ δ . The approximate solution is computed as the extrapolated Tikhonov approximation, which is a linear combination of n ≥ 2 ...
Hämarik, Uno, Raus, Toomas, Palm, Reimo
core   +5 more sources

Augmented Tikhonov Regularization Method for Dynamic Load Identification [PDF]

open access: yesApplied Sciences (Switzerland), 2020
We introduce the augmented Tikhonov regularization method motivated by Bayesian principle to improve the load identification accuracy in seriously ill-posed problems.
Jinhui Jiang   +2 more
exaly   +4 more sources

Optimal Tikhonov regularization for DEER spectroscopy [PDF]

open access: yesJournal of Magnetic Resonance, 2018
Tikhonov regularization is the most commonly used method for extracting distance distributions from experimental double electron-electron resonance (DEER) spectroscopy data. This method requires the selection of a regularization parameter, α, and a regularization operator, L.
Thomas H Edwards, Stefan Stoll
exaly   +4 more sources

A new Tikhonov regularization method [PDF]

open access: yesNumerical Algorithms, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lothar Reichel, Reichel Lothar
exaly   +3 more sources

Iterated fractional Tikhonov regularization [PDF]

open access: yesInverse Problems, 2015
Fractional Tikhonov regularization methods have been recently proposed to reduce the oversmoothing property of the Tikhonov regularization in standard form, in order to preserve the details of the approximated solution.
Buccini A.   +12 more
core   +6 more sources

Iterated Tikhonov regularization with a general penalty term

open access: yesNumerical Linear Algebra With Applications, 2017
Tikhonov regularization is one of the most popular approaches to solving linear discrete ill-posed problems. The choice of the regularization matrix may significantly affect the quality of the computed solution.
Alessandro Buccini   +2 more
exaly   +2 more sources

Regularization properties of the sequential discrepancy principle for Tikhonov regularization in Banach spaces

open access: yesApplicable Analysis, 2014
The stable solution of ill-posed non-linear operator equations in Banach space requires regularization. One important approach is based on Tikhonov regularization, in which case a one-parameter family of regularized solutions is obtained.
Stephan W Anzengruber   +2 more
exaly   +2 more sources

Arnoldi–Tikhonov regularization methods

open access: yesJournal of Computational and Applied Mathematics, 2008
Tikhonov regularization for large-scale linear ill-posed problems is commonly implemented by determining a partial Lanczos bidiagonalization of the matrix of the given system of equations.
Lewis, Bryan   +3 more
core   +2 more sources

On fractional Tikhonov regularization [PDF]

open access: yesJournal of Inverse and Ill-Posed Problems, 2015
Abstract It is well known that Tikhonov regularization in standard form may determine approximate solutions that are too smooth, i.e., the approximate solution may lack many details that the desired exact solution might possess. Two different approaches, both referred to as fractional Tikhonov methods have been introduced to remedy this ...
Daniel Gerth   +2 more
exaly   +2 more sources

Tikhonov regularization based on generalized Krylov subspace methods

open access: yesApplied Numerical Mathematics, 2012
We consider Tikhonov regularization of large linear discrete ill-posed problems with a regularization operator of general form and present an iterative scheme based on a generalized Krylov subspace method.
Lothar Reichel   +2 more
exaly   +2 more sources

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