Results 11 to 20 of about 151,464 (237)

Analysis of the accuracy and convergence of equation-free projection to a slow manifold [PDF]

open access: yes, 2007
In [C.W. Gear, T.J. Kaper, I.G. Kevrekidis, and A. Zagaris, Projecting to a Slow Manifold: Singularly Perturbed Systems and Legacy Codes, SIAM J. Appl. Dyn. Syst.
Gear, C. W.   +3 more
core   +5 more sources

Projected iterative algorithms with application to multicomponent transport

open access: yesLinear Algebra and its Applications, 1997
Projected iterative algorithms for solving constrained symmetric singular linear systems are examined. The symmetry of generalized inverses, the projected standard iterative methods as well as projected conjugate gradient algorithms are investigated.
Ern, Alexandre, Giovangigli, Vincent
openaire   +1 more source

Iterative projection algorithms for solving inverse problems [PDF]

open access: yesOceans 2003. Celebrating the Past ... Teaming Toward the Future (IEEE Cat. No.03CH37492), 2004
Inverse problems abound in the ocean sciences, as they do in almost every area of science and technology. Solutions to inverse problems are notoriously difficult, computationally expensive, and noise sensitive. Iterative projection algorithms have proved to be particularly useful for solving some image reconstruction problems with incomplete data ...
openaire   +1 more source

Discrete Optimization Methods for Group Model Selection in Compressed Sensing

open access: yes, 2020
In this article we study the problem of signal recovery for group models. More precisely for a given set of groups, each containing a small subset of indices, and for given linear sketches of the true signal vector which is known to be group-sparse in ...
Bah, Bubacarr   +2 more
core   +1 more source

AN ECC-BASED ITERATIVE ALGORITHM FOR PHOTOMETRIC INVARIANT PROJECTIVE REGISTRATION [PDF]

open access: yesInternational Journal on Artificial Intelligence Tools, 2009
The ability of an algorithm to accurately estimate the parameters of the geometric transformation which aligns two image profiles even in the presence of photometric distortions can be considered as a basic requirement in many computer vision applications. Projective transformations constitute a general class which includes as special cases the affine,
Evangelidis, Georgios   +1 more
openaire   +3 more sources

Live Iterative Ptychography with Projection-Based Algorithms

open access: yesICASSP 2024 - 2024 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
In this work, we demonstrate that the ptychographic phase problem can be solved in a live fashion during scanning, while data is still being collected. We propose a generally applicable modification of the widespread projection-based algorithms such as Error Reduction (ER) and Difference Map (DM).
Welker, Simon   +3 more
openaire   +4 more sources

An iterative projections algorithm for ML factor analysis [PDF]

open access: yes2008 IEEE Workshop on Machine Learning for Signal Processing, 2008
Alternating minimization of the information divergence is used to derive an effective algorithm for maximum likelihood (ML) factor analysis. The proposed algorithm is derived as an iterative alternating projections procedure on a model family of probability distributions defined on the factor analysis model and a desired family of probability ...
openaire   +1 more source

Projection Matrix Based Iterative Reconstruction Algorithm for Robotic CT

open access: yesIEEE Access, 2023
Robotic computed tomography (CT) consists of two separate manipulators which carry the source and detector, respectively. Various errors occur in motion due to lack of rigid connection, which may change scanning trajectory of this system. Some methods aimed at recovering geometry relation have occurred.
Xuan Zhou, Qiong Xu, Cunfeng Wei
openaire   +2 more sources

Iterative learning control for constrained linear systems [PDF]

open access: yes, 2009
This paper considers iterative learning control for linear systems with convex control input constraints. First, the constrained ILC problem is formulated in a novel successive projection framework.
Chu, B., Owens, D.H.
core  

Probabilistic Linear Solvers: A Unifying View

open access: yes, 2018
Several recent works have developed a new, probabilistic interpretation for numerical algorithms solving linear systems in which the solution is inferred in a Bayesian framework, either directly or by inferring the unknown action of the matrix inverse ...
Bartels, Simon   +3 more
core   +1 more source

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