Results 111 to 120 of about 1,481 (288)
Potential of chaotic iterative solvers for CFD
Computational Fluid Dynamics (CFD) has enjoyed the speed-up available from supercomputer technology advancements for many years. In the coming decade, however, the architecture of supercomputers will change, and CFD codes must adapt to remain current ...
Vaz, G. +4 more
core
A unified multilevel framework of upscaling and domain decomposition [PDF]
, 2010 We consider multiscale preconditioners for a class of mass-conservative domain-decomposition (MCDD) methods. For the application of reservoir simulation, we need to solve large linear systems, arising from finite-volume discretisations of elliptic PDEs ...
Sandvin, Andreas +2 more
core
Strategic Change, EarlyView.ABSTRACT Digital platform (DP) enterprises have risen to the top of the global economy by inverting traditional business models. They earn money through matchmaking, transaction facilitation, and efficient orchestration of other stakeholders' resources.
Lukas R. G. Fitz, Jochen Scheeg
wiley +1 more source
New insights in GMRES-like methods with variable preconditioners
, 1995 In this paper we compare two recently proposed methods, FGMRES (Saad, 1993) and GMRESR (van der Vorst and Vuik, 1994), for the iterative solution of sparse linear systems with an unsymmetric nonsingular matrix.
Vuik, C.
core +1 more source
Optimising Human–AI Decision Performance: A Trust and Capability Framework for Knowledge Management
Knowledge and Process Management, EarlyView.ABSTRACT Organisations struggle to optimise human–AI collaboration in knowledge‐intensive decision‐making. This paper proposes the Trust–Complementarity Model of Collective Intelligence (TCM‐CI), explaining how calibrated trust and complementary capability utilisation drive superior organisational performance.
Eduardo Carlos Dittmar, Martin Sposato
wiley +1 more source
Efficient block preconditioners for the numerical modelling of geological faults
, 2008 The Finite Element modelling of geological faults by penalty contact elements may give rise to illconditioned stiffness matrices with the convergence of iterative solvers accelerated, or even allowed for, by the development and implementation of ...
FERRONATO, MASSIMILIANO +2 more
core
Quantifying Soft‐Surgery in Cochlear Implantation: Multimodal Data From 30 International Specialists
The Laryngoscope, EarlyView.Objective data from 30 specialist cochlear implant surgeons showed that surgical handling strongly influences intracochlear mechanical stress during implantation. Surgeons with fewer than 50 lifetime insertions performed significantly worse than more experienced colleagues, while self‐assessment did not reflect objective performance in any group ...
Philipp Aebischer +3 more
wiley +1 more source
A THEORY OF SECANT PRECONDITIONERS
, 2015 In this paper we analyze the use of structured quasi-Newton formulae as preconditioners of iterative linear methods when the inexact-Newton approach is employed for solving nonlinear systems of equations. We prove that superlinear convergence and bounded
MARTINEZ, JM
core +1 more source
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose The Unadjusted Langevin Algorithm (ULA) in combination with diffusion models can generate high quality MRI reconstructions with uncertainty estimation from highly undersampled k‐space data. However, sampling methods such as diffusion posterior sampling (DPS) or likelihood annealing suffer from long reconstruction times and the need for
Moritz Blumenthal +3 more
wiley +1 more source
On the preconditioning of the primal form of TFOV-based image deblurring model. [PDF]
Sci Rep, 2023 Kim J, Ahmad S.
europepmc +1 more source