Hans-Peter Hutter

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This paper summarizes the main results from the Speaker Veriication (SV) research pursued so far in the CAVE project. Diierent state-of-the art SV algorithms were implemented in a common HMM framework and compared on two databases : YOHO (of-ce environment speech) and SESP (telephone speech). This paper is concerned with the diierent design issues for(More)
The issue of a priori threshold setting in speaker veri-cation is a key problem for eld applications. In the context of the CAVE project, we compared several methods for estimating speaker-independent and speaker-dependent decision thresholds. Relevant parameters are estimated from development data only, i.e. without resorting to additional client data. The(More)
R ESUM E Cet article pr esente un panorama des activit es de recherche men ees dans le cadre du projet europ een LE-Telematics CAVE, sur la v eriication du locuteur a travers le r eseau t el ephonique. Nous pr esentons tout d'abord les principes des algorithmes sur lesquels repose notre syst eme de v eri-cation. Nous d ecrivons ensuite le protocole et la(More)
Many businesses, such as banks, will soon be under pressure to improve the functionality and friendliness of their telephone-based services without compromising security. Current automatic services authenticate callers with a PIN-code and consequently are not secure enough to ooer callers the chance to carry out signiicant transactions; more sophisticated(More)
The rapid increase in mobile phone use in young people has generated concern about possible health effects of exposure to radiofrequency (RF) and extremely low frequency (ELF) electromagnetic fields (EMF). MOBI-Kids, a multinational case-control study, investigates the potential effects of childhood and adolescent exposure to EMF from mobile communications(More)