Data processing: speech signal processing – linguistics – language – Speech signal processing – Recognition
Patent
1997-08-26
2000-01-25
Hudspeth, David R.
Data processing: speech signal processing, linguistics, language
Speech signal processing
Recognition
704235, 704240, 704257, G10L 708
Patent
active
060187085
ABSTRACT:
The invention relates to a method and an apparatus for recognising speech, more particularly to a speech recognition system and method utilising a speech recognition dictionary supplemented by a lexicon containing frequently occurring word sequences (orthographies). In typical speech recognition systems, the process of speech recognition consists of scanning the vocabulary database or dictionary by using a fast match algorithm to find the top N candidates that potentially match the input speech. In a second pass the N candidates are re-scored using more precise likelihood computations. The novel method comprises the introduction of a step in the search stage that consists of forcing the insertion in the list of N candidates entries selected from a lexicon containing frequently used orthographies to increase the probability of occurrence of certain text combinations.
REFERENCES:
patent: 4164025 (1979-08-01), Dubnowski ET AL.
patent: 4751736 (1988-06-01), Gupta et al.
patent: 4751737 (1988-06-01), Gerson et al.
patent: 4797910 (1989-01-01), Daudelin
patent: 4829576 (1989-05-01), Porter
patent: 4852180 (1989-07-01), Levinson
patent: 4956865 (1990-09-01), Lennig et al.
patent: 4959855 (1990-09-01), Daudelin
patent: 4979206 (1990-12-01), Padden et al.
patent: 5050215 (1991-09-01), Nishimura
patent: 5052038 (1991-09-01), Shepard
patent: 5086479 (1992-02-01), Takenaga et al.
patent: 5091947 (1992-02-01), Ariyoshi et al.
patent: 5097509 (1992-03-01), Lennig
patent: 5127055 (1992-06-01), Larkey
patent: 5163083 (1992-11-01), Dowden et al.
patent: 5181237 (1993-01-01), Dowden et al.
patent: 5204894 (1993-04-01), Darden
patent: 5226044 (1993-07-01), Gupta et al.
patent: 5274695 (1993-12-01), Green
patent: 5307444 (1994-04-01), Tsuboka
patent: 5390278 (1995-02-01), Gupta et al.
patent: 5488652 (1996-01-01), Bielby et al.
patent: 5515475 (1996-05-01), Gupta et al.
patent: 5692097 (1997-11-01), Yamada et al.
patent: 5839107 (1998-11-01), Gupta et al.
Rabiner, L. R. and B. H. Juang, "An Introduction to Hidden Markov Models", IEEE ASSP Magazine, pp. 4-16 (Jan. 1986).
Bakis, R. and A. G. Cole, "Dynamic Modification of the Vocabulary of a Speech Recognition Machine", IBM Technical Disclosure Bulletin, vol. 27, No. 7A, pp. 3945-3946 (Dec. 1984).
Lennig, M. and D. Sharp, "Unleashing the Potential of Human-To-Machine Communication", Telesis, No. 97, pp. 23-27.
Lennig, M., "Putting Speech Recognition to Work in the Telephone Network", Computer, pp. 35-41 (Aug. 1990).
Young, S., "Large Vocabulary Continuous Speech Recognition: a Review", Proceedings, IEEE Automatic Speech Recognition Workshop, pp. 3-28 (Dec. 1995).
Lennig, "Putting Speech Recognition to Work in the Telephone Network", Bell-Northern Research and INRS-Telecommunications pp. 35-41, (Aug. 1990).
Gorin et al., "Adaptive acquisition of language", Computer Speech and Language vol. 5, pp. 101-132 (1991).
Lennig et al., "Flexible Vocabulary Recognition of Speech Over the Telephone" Bell-Northern Research and INRS-Telecomunications pp. 1-3 (1992).
Lennig et al., "Automated Bilingual Directory Assistance Trial In Bell Canada" Bell-Northern Research pp. 1-14.
Gao et al., "Dynamic Adaptation of Hidden Markov Model for Robust Speech Recognition" IEEE International Syposium on Circuits and Systems 2:1336-1339 (1989).
Gupta et al., "Fast Search in a Large Vocabulary Word Recognizer" J. Acoust. Soc. Am. pp. 2007-2017 (1988).
Katz, Estimation of Probabilities from Sparse Data for the Language Model Component of a Speech Recognizer IEEE Transactions on Acoustics Speech and Signal Processing Assp.35 vol. No. 3.
Bahl et al., "Language-Model/ Acoustic-Channel-Model Balance Mechanism" IBM Technical Disclosure Bulletin 23:3464-3465 (1980).
Dahan Jean-Guy
Gupta Vishwa
Azad Abul K.
Hudspeth David R.
Nortel Networks Corporation
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