Results 1 to 10 of about 404,826 (127)

Computing tensor Z-eigenpairs via an alternating direction method [PDF]

open access: yesPeerJ Computer Science, 2023
Tensor eigenproblems have wide applications in blind source separation, magnetic resonance imaging, and molecular conformation. In this study, we explore an alternating direction method for computing the largest or smallest Z-eigenvalue and corresponding
Genjiao Zhou   +2 more
doaj   +3 more sources

Fourier Ptychographic Microscopy via Alternating Direction Method of Multipliers [PDF]

open access: yesCells, 2022
Fourier ptychographic microscopy (FPM) has risen as a promising computational imaging technique that breaks the trade-off between high resolution and large field of view (FOV). Its reconstruction is normally formulated as a blind phase retrieval problem,
Aiye Wang   +5 more
doaj   +2 more sources

Quantitative susceptibility mapping using plug-and-play alternating direction method of multipliers [PDF]

open access: yesScientific Reports, 2022
Quantitative susceptibility mapping employs regularization to reduce artifacts, yet many recent denoisers are unavailable for reconstruction. We developed a plug-and-play approach to QSM reconstruction (PnP QSM) and show its flexibility using several ...
Srikant Kamesh Iyer   +7 more
doaj   +2 more sources

Convergence analysis on a modified generalized alternating direction method of multipliers [PDF]

open access: yesJournal of Inequalities and Applications, 2018
The alternating direction method of multipliers (ADMM) is one of the most powerful and successful methods for solving convex composite minimization problem.
Sha Lu, Zengxin Wei
doaj   +2 more sources

Compressed sensing MRI via fast linearized preconditioned alternating direction method of multipliers [PDF]

open access: yesBioMedical Engineering OnLine, 2017
Background The challenge of reconstructing a sparse medical magnetic resonance image based on compressed sensing from undersampled k-space data has been investigated within recent years.
Shanshan Chen   +4 more
doaj   +2 more sources

Low-Density Parity-Check Decoding Algorithm Based on Symmetric Alternating Direction Method of Multipliers [PDF]

open access: yesEntropy
The Alternating Direction Method of Multipliers (ADMM) has proven to be an efficient approach for implementing linear programming (LP) decoding of low-density parity-check (LDPC) codes.
Ji Zhang   +5 more
doaj   +2 more sources

Low Dose PET Image Reconstruction with Total Variation Using Alternating Direction Method. [PDF]

open access: yesPLoS ONE, 2016
In this paper, a total variation (TV) minimization strategy is proposed to overcome the problem of sparse spatial resolution and large amounts of noise in low dose positron emission tomography (PET) imaging reconstruction. Two types of objective function
Xingjian Yu   +3 more
doaj   +2 more sources

Numerical Solution to the Fluid Flow in a Bend Duct Equation [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2008
The Fluid Flow in a bend Duct equation had been solved numerically by using two methods. The first is ADE (Alternating Direction Explicit) method and the second is ADI (Alternating Direction Implicit) method.
Badran Salem
doaj   +1 more source

Alternating Direction Implicit Method for Solving Heat Diffusion Problems

open access: yesTikrit Journal of Pure Science, 2021
The objective of this paper to find the solution of fractional partial differential equations using numerical methods to solve heat diffusion problems and this method is the implicit alternating direction method ADI with discussion of its algorithm and ...
Awni M. Gaftan   +2 more
doaj   +1 more source

Alternating Direction Implicit Method for Solving Parabolic Partial Differential Equations in Three Dimensions [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2012
In this paper, the parabolic partial differential equations in three-dimensions are solved by two types of finite differences, such as, Alternating Direction Explicit (ADE) method and Alternating Direction Implicit (ADI) method.
Abdulghafor Al-Rozbayani, Mahmood Yahya
doaj   +1 more source

Home - About - Disclaimer - Privacy