NDLI: Field trial of a speaker verification service for caller identity verification in the telephone network

Content Provider	IEEE Xplore Digital Library
Author	Naik, J.
Copyright Year	1994
Description	Author affiliation: Speech Recognition & Language Understanding Services, NYNEX Sci. & Technol.Inc., WHite Plains, NY, USA (Naik, J.)
Abstract	A field trial of a network-integrated speaker verification system was performed in the NYNEX public switched telephone network in 1993-94. Speaker verification was performed on all calling-card calls placed by NYNEX customers who took part in this trial. Subsequently, a comprehensive impostor field-trial was performed. A variety of phones, channel conditions and caller/calling environments were represented in this large field-trial. The results show that this system performed very well under these real-world conditions. A valid user rejection rate of 1%, which is operationally very desirable, produced an equally low dedicated impostor acceptance of 3.9%. User surveys showed high user preference of this type of service. The paper discusses the results of the field trial in detail.
Starting Page	125
Ending Page	128
File Size	273342
Page Count	4
File Format	PDF
ISBN	0780320743
DOI	10.1109/IVTTA.1994.341529
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-09-26
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Telephony Switches Credit cards Intelligent networks Speech recognition Natural languages Cepstral analysis Large scale integration Robustness Design methodology
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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