Results 111 to 120 of about 14,496,760 (259)

Krylov Subspace Methods for Model Reduction of Quadratic-Bilinear Systems

, 2016
The authors propose a two sided moment matching method for model reduction of quadratic-bilinear descriptor systems. The goal is to approximate some of the generalised transfer functions that appear in the input–output representation of the non-linear ...
Mian Ilyas Ahmad, P. Benner, I. Jaimoukha   +2 more
semanticscholar   +1 more source

Combining Krylov subspace methods and identification-based methods for model order reduction [PDF]

, 2006
Many different techniques to reduce the dimensions of a model have been proposed in the near past. Krylov subspace methods are relatively cheap, but generate non-optimal models.
Schilders, W.H.A., Dhaene, T., Deschrijver, D., Heres, P.J.   +3 more
core   +1 more source

Comparison of Krylov subspace methods on the PageRank problem

Journal of Computational and Applied Mathematics, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
DEL CORSO, GIANNA MARIA, GULLI A, ROMANI, FRANCESCO   +2 more
openaire   +1 more source

Randomized block Krylov subspace methods for trace and log-determinant estimators

BIT Numerical Mathematics, 2021
Han-Yu Li, Y. Zhu
semanticscholar   +1 more source

Conformable fractional order variation-based image deblurring

Partial Differential Equations in Applied Mathematics
Image deblurring (ID) plays a vital role in various applications, including photography, medical imaging, and surveillance. Traditional ID methods often face challenges in preserving fine details and handling complex blurring scenarios due to expensive ...
Shahid Saleem, Faisal Fairag, Adel M. Al-Mahdi, Mohammad M. Al-Gharabli, Shahbaz Ahmad   +4 more
doaj   +1 more source

Alternating Krylov subspace image restoration methods

Journal of Computational and Applied Mathematics, 2012
Let \(f^\delta\) represent the available noise- and blur-contaminated image and \(\widehat u\) the associated image that is to recover. The model \[ f^\delta(x)= \int h(x,y)\widehat u(y)\,dy+ \eta^\delta(x),\quad x\in\Omega, \] with the noise \(\eta^\delta\) is assumed.
J. O. Abad, MORIGI, SERENA, L. Reichel, SGALLARI, FIORELLA   +3 more
openaire   +5 more sources

KRYLOV SUBSPACE ACCELERATION OF WAVEFORM RELAXATION ∗

, 2008
. In this paper we describe and analyze Krylov subspace techniques for accelerating the convergence of waveform relaxation for solving time dependent problems. A new class of accelerated waveform methods, convolution Krylov subspace methods, is presented.
Andrew Lumsdaine, Deyun Wu
core  

Kω ? Open-source library for the shifted Krylov subspace method of the form (zI?H)x=b [PDF]

We develop Kω, an open-source linear algebra library for the shifted Krylov subspace methods. The methods solve a set of shifted linear equations (zkI−H)x(k)=b(k=0,1,2,…) for a given matrix H and a vector b, simultaneously.
26508, Yoshimi, Kazuyoshi, 26507, Misawa, Takahiro, Kawamura, Mitsuaki, 26509, Motoyama, Yuichi, ホシ, タケオ, Hoshi, Takeo, 80272384, 星, 健夫, 26510, 26504, 26503, 26506, 26505, Yamaji, Youhei, Kawashima, Naoki, 100000561, Todo, Synge, Sogabe, Tomohiro, 813   +21 more
core   +1 more source

Structural Response Evaluation of Krylov Subspace-Based Reduced-Order Model for Real-Time Structural Health Monitoring and Prediction of Container Ships

한국해양공학회지
Recently, digital transformation has become crucial for the safe operation and extended lifespan of ships and offshore structures. Structural health management is gaining importance and driving interest in digital twin technology for monitoring ...
Kichan Sim, Byoung Wan Kim, Jeong Sam Han, Kangsu Lee   +3 more
doaj   +1 more source

Krylov Subspace Methods on Parallel Computers

, 1996
The aspects of implementing Krylov subspace methods on parallel computers are investigated. It is shown how to increase the parallel performance by restructuring standard sequential versions of the algorithms, with some trade-off in stability.
Patrik Skogqvist
core