Sixth International Conference on Spoken Language Processing
(ICSLP 2000)

Beijing, China
October 16-20, 2000

Speaker Verification in Operational Environments - Monitoring for Improved Service Operation

Yong Gu (3), Hans Jongebloed (1), Dorota Iskra (1), Els den Os (1), Lou Boves (1,2)

(1) KPN Research, KPN Royal Dutch Telecom, Multi-Media Department, Leidschendam, The Netherlands
(2) Nijmegen University, Department of Speech and Language, The Netherlands
(3) Vocalis Ltd., Cambridge, UK

There are very few, if any, published accounts of practical experience with Speaker Verification as a means to provide secure access to telematics services. Yet, there is no reason to expect that Speaker Verification is very different from speech recognition, for which many deployed services have shown the need for close and intensive on-line monitoring during the time when the service becomes operational. In this paper we present our experience with a monitoring scheme for Speaker Verification during the field test of a financial investment game. Many of the issues that were monitored were suggested by our experience with a semi-operational service, viz. free access to Directory Assistance for visually impaired. A newly developed enrolment procedure, that can flag potentially weak speaker models, is an essential part of the monitoring procedure.

Full Paper

Bibliographic reference.  Gu, Yong / Jongebloed, Hans / Iskra, Dorota / Os, Els den / Boves, Lou (2000): "Speaker verification in operational environments - monitoring for improved service operation", In ICSLP-2000, vol.2, 450-453.