Results 31 to 40 of about 3,866 (190)

Node-Adaptive Regularization for Graph Signal Reconstruction

open access: yesIEEE Open Journal of Signal Processing, 2021
A critical task in graph signal processing is to estimate the true signal from noisy observations over a subset of nodes, also known as the reconstruction problem.
Maosheng Yang   +3 more
doaj   +1 more source

Adaptive Tikhonov regularization and dynamic control points for accurate shape parameter control of plasmas

open access: yesNuclear Fusion, 2023
Precise control of plasma shape parameters, such as elongation and triangularity is duly needed to achieve high-performance tokamak plasmas, for which we propose adaptive search schemes of (1) optimum regularization parameter for the Tikhonov ...
S. Inoue   +4 more
doaj   +1 more source

Wasserstein Diffusion Tikhonov Regularization

open access: yesCoRR, 2019
We propose regularization strategies for learning discriminative models that are robust to in-class variations of the input data. We use the Wasserstein-2 geometry to capture semantically meaningful neighborhoods in the space of images, and define a corresponding input-dependent additive noise data augmentation model.
Alex Tong Lin   +3 more
openaire   +3 more sources

A modified Tikhonov regularization for unknown source in space fractional diffusion equation

open access: yesOpen Mathematics, 2022
In this article, we consider the identification of an unknown steady source in a class of fractional diffusion equations. A modified Tikhonov regularization method based on Hermite expansion is presented to deal with the ill-posedness of the problem.
Yu Kai, Gong Benxue, Zhao Zhenyu
doaj   +1 more source

A modified Tikhonov regularization method

open access: yesJournal of Computational and Applied Mathematics, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xiao-Juan Yang, Li Wang
openaire   +2 more sources

Prediction of propagated wave profiles based on point measurement

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2014
This study presents the prediction of propagated wave profiles using the wave information at a fixed point. The fixed points can be fixed in either space or time.
Lee Sang-Beom   +3 more
doaj   +3 more sources

Particle swarm optimization method for parameter selecting in Tikhonov regularization method for solving inverse problems

open access: yese-Prime: Advances in Electrical Engineering, Electronics and Energy
In this article the Tikhonov method used as a regularization technique for solving the inverse problem liner operator equation of the first kind with noisy and noise-free data. We also provide the Tikhonov method's essential analysis for tackling inverse
H.K. Al-Mahdawi, A.S. Alhumaima
doaj   +1 more source

Signal Restoration Combining Modified Tikhonov Regularization and Preconditioning Technology

open access: yesIEEE Access, 2017
The purpose of signal restoration is to acquire a clean signal from the degraded signal which contains blur and noise. In this paper, a modified Tikhonov regularization method based on the standard Tikhonov regularization matrix is proposed, and the ...
Hong-Xia Dou   +3 more
doaj   +1 more source

A Fast Iterative Shrinkage/Thresholding Algorithm via Laplace Norm for Sound Source Identification

open access: yesIEEE Access, 2020
As a powerful tool, near-field acoustical holography (NAH) recognizes the sound source effectively. The traditional equivalent source method (ESM) calculated by the Tikhonov regularization method could be available in the low-frequency band.
Linsen Huang   +4 more
doaj   +1 more source

DISCRETIZATION ERROR ANALYSIS FOR TIKHONOV REGULARIZATION [PDF]

open access: yesAnalysis and Applications, 2006
We study the discretization of inverse problems defined by a Carleman operator. In particular, we develop a discretization strategy for this class of inverse problems and we give a convergence analysis. Learning from examples, as well as the discretization of integral equations, can be analyzed in our setting.
DE VITO, ERNESTO   +2 more
openaire   +2 more sources

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