Results 71 to 80 of about 167,968,449 (203)

Performance of Free‐Running Cardiac and Respiratory Motion‐Resolved Whole‐Heart 5D MRI in Congenital Heart Disease Patients Using a Gadolinium Enhanced Fast‐Interrupted Steady‐State Sequence

Journal of Magnetic Resonance Imaging, Volume 64, Issue 4, Page 996-1008, October 2026.
ABSTRACT Background The performance of 5D imaging in CHD has been previously demonstrated using ferumoxytol rather than gadolinium. Purpose To evaluate the performance of gadolinium enhanced 5D MRI relative to 2D and 3D MRI in CHD patients. Study Type Retrospective.
Christopher W. Roy, Eva Vogeli, Alissia Megalo, Fabienne Dirbach, Jessica A. M. Bastiaansen, Jérôme Yerly, Marco Mueller, David Rodrigues, Jean‐Baptiste Ledoux, Juerg Schwitter, Milan Prša, Estelle Tenisch, Tobias Rutz, Matthias Stuber   +13 more
wiley   +1 more source

Projected Alternating Direction Method of Multipliers for Hybrid Systems

, 2017
International audienceIn large-scale control optimization problems, a decentralized control structure can offer great scalability and rapidity advantages over a centralized implantation.
Feng, Chengang, Bourdais, Romain
core   +2 more sources

Simultaneous T2, T2*, and R2′ Mapping for Multiple Sclerosis Using Nonlinear Model‐Based Reconstruction of Undersampled Radial RARE‐EPI MRI

Magnetic Resonance in Medicine, Volume 96, Issue 4, Page 1872-1892, October 2026.
ABSTRACT Purpose To demonstrate the synergy of undersampled radial 2in1‐RARE‐EPI acquisition and nonlinear model‐based reconstruction for accelerated and simultaneous T2, T2*, and R2′ mapping in brains of patients with multiple sclerosis (MS). Methods 2in1‐RARE‐EPI combines a RARE module with an EPI module to capture T2 and T2* information.
Jose Raul Velasquez Vides, Carl J. J. Herrmann, Thomas Gladytz, Hoby P. Hetherington, Hendrik Mattern, Xiaoqing Wang, Jason M. Millward, Shahriar Shalikar, Igor Fabian Tellez Ceja, Beate Endemann, Sonia Waiczies, Joseph Kuchling, Friedemann Paul, Georg Rose, Min‐Chi Ku, Franz Schmitt, Thoralf Niendorf   +16 more
wiley   +1 more source

On the O(1/k) convergence of asynchronous distributed alternating Direction Method of Multipliers [PDF]

, 2013
We consider a network of agents that are cooperatively solving a global optimization problem, where the objective function is the sum of privately known local objective functions of the agents and the decision variables are coupled via linear constraints.
Asuman Ozdaglar, Wei, Ermin, Ermin Wei, Ozdaglar, Asuman E.   +3 more
core   +1 more source

Inverse‐consistent deformable image registration to propagate biomechanical constraints for online adaptive radiotherapy

Medical Physics, Volume 53, Issue 9, September 2026.
Abstract Background Accurate motion estimation remains a key challenge in adaptive radiotherapy (ART). Voxel‐wise accuracy is required, as registration errors can compromise the treatment quality. Locally constrained image registration is a promising technique to further improve ART treatment, but relies heavily on quick and accurate delineations of ...
T. J. W. Draper, C. Zachiu, B. W. Raaymakers   +2 more
wiley   +1 more source

On the convergence rate of the bi-alternating direction method of multipliers

, 2014
In this paper, we analyze the convergence rate of the bi-alternating direction method of multipliers (BiADMM). Differently from ADMM that optimizes an augmented Lagrangian function, Bi-ADMM optimizes an augmented primal-dual Lagrangian function.
W. B. Kleijn, Zhang, G, Guoqiang Zhang, Kleijn, WB, Heusdens, R, Richard Heusdens   +5 more
core   +1 more source

A new inexact parallel splitting method for monotone variational inequalities with separable structures

四川大学学报. 自然科学版, 2016
This paper presents a new inexact parallel splitting method for solving variational inequalities (VIs) with separable structures. To solve VIs, some classical methods augmented Lagrangian method and alternating direction method of multipliers (ADMM) were
lihuan, kuo xi-peng
doaj  

The symmetric ADMM with indefinite proximal regularization and its application

Journal of Inequalities and Applications, 2017
Due to updating the Lagrangian multiplier twice at each iteration, the symmetric alternating direction method of multipliers (S-ADMM) often performs better than other ADMM-type methods.
Hongchun Sun, Maoying Tian, Min Sun
doaj   +1 more source

Convergence of Linear Bregman ADMM for Nonconvex and Nonsmooth Problems with Nonseparable Structure

Complexity, 2020
The alternating direction method of multipliers (ADMM) is an effective method for solving two-block separable convex problems and its convergence is well understood.
Miantao Chao, Zhao Deng, Jinbao Jian
doaj   +1 more source

Tracing Three Decades of Low Earth Orbit Satellite Communication Development: A Bibliometric and Main Path Analysis of Network Architectures, Protocol Evolution, and Emerging Intelligent Services

International Journal of Satellite Communications and Networking, Volume 44, Issue 5, Page 573-593, September/October 2026.
ABSTRACT Low Earth Orbit (LEO) satellite communication systems have evolved into a critical component of global broadband networks, enabling wide‐area connectivity, IoT services, and intelligent multilayer satellite–terrestrial integration. Despite rapid advancements in constellation deployment, routing mechanisms, resource management, and LEO–5G/6G ...
Wei‐Hao Su, Ya‐Chen Chuang, Long‐Sheng Chen   +2 more
wiley   +1 more source