Signal variation feature based confidence measure

Details Signal variation feature based confidence measure Signal variation feature based confidence measure

2007-11-06

2007-11-06

Dorvil, Richemond (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

Recognition

C236S10100B, C236S10100B

Reexamination Certificate

active

10957816

ABSTRACT:
A method for predicting a misrecognition in a speech recognition system, is based on; the insight that variations in a speech input signal are different depending on the origin of the signal being a speech or a non-speech event. The method comprises steps for receiving a speech input signal, extracting at least one signal variation feature of the speech input signal, and applying a signal variation meter to the speech input signal for deriving a signal variation measure.

REFERENCES:
patent: 4718095 (1988-01-01), Asakawa et al.
patent: 4790017 (1988-12-01), Hinton
patent: 4975959 (1990-12-01), Benbassat
patent: 5845047 (1998-12-01), Fukada et al.
patent: 6292775 (2001-09-01), Holmes
patent: 6570991 (2003-05-01), Scheirer et al.
patent: 6794197 (2004-09-01), Indermuhle et al.
patent: 6999925 (2006-02-01), Fischer et al.
patent: 2002/0133340 (2002-09-01), Basson et al.
patent: 1 189 202 (2002-03-01), None
Schaaf T et al: “Confidence Measures for Spontaneous Speech Recognition” 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing. Speech Processing. Munich, Apr. 21-24, 1997, (ICASSP), Los Alamitos, IEEE Comp. Soc. Press, US, vol. 2, Apr. 21, 1997, pp. 875-878, XP000822587.
Moreau N et al: “Use of a Confidence Measure Based on Frame Level Likelihood Ratios for the Rejection of Incorrect Data” 6thEuropean Conference on Speech Communication and Technology, Eurospeech '99. Budapest, Hungary (Eurospeech), Bonn: ESCA, DE, vol. 1 of 6, Sep. 5, 1999, pp. 291-294, XP001076108.
Bernardis et al: “Improving Posterior Based Confidence Measures in Hybrid HMM/ANN Speech Recognition Systems” Proc. of ICSLP'98, vol. 3, Oct. 1998, pp. 318-321, XP007000216.
Kamppari et al: “Word and phone level acoustic confidence scoring” Proc. of ICASSP'00, vol. 3, Jun. 5, 2000, pp. 1799-1802, XP010507710.
Benitez et al: “Different confidence measures for word verification in speech recognition” Speech Communication, Elsevier Science Publishers, Amsterdam, NL, vol. 32, No. 1-2, Sep. 2000, pp. 79-94, XP004216247.

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