Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Fritz Keinert"'
Autor:
Fritz Keinert, Eric S. Weber
Publikováno v:
Axioms, Vol 11, Iss 3, p 106 (2022)
The Kaczmarz algorithm is an iterative method for solving systems of linear equations. We introduce a randomized Kaczmarz algorithm for solving systems of linear equations in a distributed environment, i.e., the equations within the system are distri
Externí odkaz:
https://doaj.org/article/a684dc8ea76b4bd084333175b83b6005
Autor:
Fritz Keinert, Ahmet Altürk
Publikováno v:
Axioms, Vol 2, Iss 2, Pp 122-141 (2013)
Boundary functions for wavelets on a finite interval are often constructed as linear combinations of boundary-crossing scaling functions. An alternative approach is based on linear algebra techniques for truncating the infinite matrix of the Discrete
Externí odkaz:
https://doaj.org/article/ec63a1affcfd45a7a571b6cc19da2a5a
Publikováno v:
IEEE Transactions on Image Processing. 28:2785-2798
In this paper, we propose a Group-Sparse Representation-based method with applications to Face Recognition (GSR-FR). The novel sparse representation variational model includes a non-convex sparsity-inducing penalty and a robust non-convex loss functi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba874653afa95992ae8aa97f681cfe01
https://doi.org/10.1109/tip.2018.2890312
https://doi.org/10.1109/tip.2018.2890312
Publikováno v:
Circuits, Systems, and Signal Processing. 39:2006-2041
We consider the design of an orthogonal symmetric/antisymmetric multiwavelet from its matrix product filter by matrix spectral factorization (MSF). As a test problem, we construct a simple matrix product filter with desirable properties, and factor i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1f374acdae87d0215ae3b68a0d2e574
https://doi.org/10.1007/s00034-019-01240-9
https://doi.org/10.1007/s00034-019-01240-9
Publikováno v:
Applied and Numerical Harmonic Analysis ISBN: 9783030696368
The Kaczmarz algorithm is an iterative method for solving systems of linear equations. We introduce a modified Kaczmarz algorithm for solving systems of linear equations in a distributed environment, i.e., the equations within the system are distribu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::400b3c09b179c0551b80f32c68c9cf3f
https://doi.org/10.1007/978-3-030-69637-5_20
https://doi.org/10.1007/978-3-030-69637-5_20
Autor:
Fritz Keinert
Publikováno v:
Lecture Notes in Computational Science and Engineering ISBN: 9783030558734
ENUMATH
ENUMATH
The discrete wavelet transform is defined for functions on the entire real line. One way to implement the transform on a finite interval is by using special boundary functions. For orthogonal multiwavelets, this has been studied in previous papers. W
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ade035b00772a262322d52b7ca098e80
https://doi.org/10.1007/978-3-030-55874-1_57
https://doi.org/10.1007/978-3-030-55874-1_57
Publikováno v:
Multidimensional Systems and Signal Processing. 29:1613-1641
In this paper, we investigate Bauer's method for the matrix spectral factorization of an r-channel matrix product filter which is a halfband autocorrelation matrix. We regularize the resulting matrix spectral factors by an averaging approach and by m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c759def94c8b481e9f87172d6e631423
https://doi.org/10.1007/s11045-017-0520-x
https://doi.org/10.1007/s11045-017-0520-x
Publikováno v:
Multidimensional Systems and Signal Processing. 30:1633-1635
After a careful review of the published version of our paper, we discovered that some references to the number of multiwavelet decomposition and reconstruction levels are incorrect.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1e1b032216ec7cc4df8dc1a29243209
https://doi.org/10.1007/s11045-018-0618-9
https://doi.org/10.1007/s11045-018-0618-9
Autor:
Fritz Keinert
Publikováno v:
Poincare Journal of Analysis and Applications. :1-12
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::534919341010a299a528e25fc20cc4d9
https://doi.org/10.46753/pjaa.2015.v02i02.001
https://doi.org/10.46753/pjaa.2015.v02i02.001
Autor:
Fritz Keinert, Soon-Geol Kwon
Publikováno v:
Kyungpook mathematical journal. 55:1053-1067
A two-direction multiscaling function ˚ satis es a recursion relation that usesscaled and translated versions of both itself and its reverse. This o ers a more general andexible setting than standard one-direction wavelet theory. In this paper, we i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84f40f7e8c51b3c981344baf66b85e16
https://doi.org/10.5666/kmj.2015.55.4.1053
https://doi.org/10.5666/kmj.2015.55.4.1053