New Riemannian metrics for speeding-up the convergence of over- And underdetermined ICA

Stefano Squartini, Francesco Piazza, Fabian J. Theis

Publikation: Beitrag in Buch/Bericht/KonferenzbandKonferenzbeitragBegutachtung

4 Zitate (Scopus)

Abstract

In this paper some alternative Riemannian metrics are defined on the parameter space of non-square matrices, corresponding to various translations defined therein. Such metrics allow the authors to derive novel learning rules for two ICA based algorithms for over-determined blind source separation (BSS), which tries to separate less sources from more sensors. Computer simulations show a significant improvement of the convergence speed when second-order translations are employed in contrast to their first-order counterparts, extending known results for complete BSS.

OriginalspracheEnglisch
TitelISCAS 2006
Untertitel2006 IEEE International Symposium on Circuits and Systems, Proceedings
Seiten4555-4558
Seitenumfang4
PublikationsstatusVeröffentlicht - 2006
Extern publiziertJa
VeranstaltungISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems - Kos, Griechenland
Dauer: 21 Mai 200624 Mai 2006

Publikationsreihe

NameProceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)0271-4310

Konferenz

KonferenzISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems
Land/GebietGriechenland
OrtKos
Zeitraum21/05/0624/05/06

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