Results 91 to 100 of about 3,427 (187)

Uncertainty in structure dynamics resulting from matrix ill-conditioning

Archives of Acoustics, 2014
In the paper there are discussed certain issues concerning ill-posed problems that frequently appear in inverse problems, modal analysis, acoustics and other methods making use of matrix algebra.
J. IWANIEC
doaj  

A Fractional Tikhonov Regularization Method for Identifying a Time-Independent Source in the Fractional Rayleigh–Stokes Equation

Fractal and Fractional
The aim of this paper is to identify a time-independent source term in the Rayleigh–Stokes equation with a fractional derivative where additional data are considered at a fixed time point.
Songshu Liu, Lixin Feng, Chao Liu
doaj   +1 more source

Tikhonov-type regularization method for efficient solutions in vector optimization

Journal of Computational and Applied Mathematics, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

A nested primal–dual iterated Tikhonov method for regularized convex optimization

Computational Optimization and Applications
Abstract Proximal–gradient methods are widely employed tools in imaging that can be accelerated by adopting variable metrics and/or extrapolation steps. One crucial issue is the inexact computation of the proximal operator, often implemented through a nested primal–dual solver, which represents the main computational bottleneck whenever an ...
Stefano Aleotti, Silvia Bonettini, Marco Donatelli, Marco Prato, Simone Rebegoldi   +4 more
openaire   +3 more sources

Numerical Analysis of a Fractional Cauchy Problem for the Laplace Equation in an Annular Circular Region

Fractal and Fractional
The Cauchy problem for the Laplace equation in an annular bounded region consists of finding a harmonic function from the Dirichlet and Neumann data known on the exterior boundary.
José Julio Conde Mones, Julio Andrés Acevedo Vázquez, Eduardo Hernández Montero, María Monserrat Morín Castillo, Carlos Arturo Hernández Gracidas, José Jacobo Oliveros Oliveros   +5 more
doaj   +1 more source

An Impact Load History Reconstruction Method for Composite Structures Based on FBG Sensing Data and the GCV Principle. [PDF]

Sensors (Basel)
Zeng J, Xu J, Xu Y, Zhao X, Wang S, Zhou Y, Wang Y.   +6 more
europepmc   +1 more source

Contact force identification in pantograph-catenary system via elastic support beam theory and enhanced l1 sparse regularization scheme. [PDF]

Sci Rep
Wei H, Zhou N, Zhi X, Chen H, Li M, Cheng Y, Zhang W.   +6 more
europepmc   +1 more source

Bilevel Optimized Implicit Neural Representation for Scan-Specific Accelerated MRI Reconstruction. [PDF]

IEEE Trans Med Imaging
Yu H, Fessler JA, Jiang Y.
europepmc   +1 more source

Latent diffusion-based image reconstruction for near-infrared spectral tomography. [PDF]

Biomed Opt Express
Li Y, Li Z, Wei C, Sun Z, Hu T, Jia K, Feng J, Pogue BW, Paulsen KD, Jiang S.   +9 more
europepmc   +1 more source

Simultaneous Numerical Determination of Two Time-dependent Coefficients in Second Order Parabolic Equation With Nonlocal Initial and Boundary Conditions. [PDF]

F1000Res
A J Al-Shatrah M, Sabah Hussein M.
europepmc   +1 more source