Speech recognition method with language model adaptation

Details Speech recognition method with language model adaptation Speech recognition method with language model adaptation

1998-03-02

2000-12-05

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

Application

704255, 704256, G10L 900

Patent

active

061579122

ABSTRACT:
Language models which take into account the probabilities of word sequences are used in speech recognition, in particular in the recognition of fluently spoken language with a wide vocabulary, in order to increase the recognition reliability. These models are obtained from comparatively large quantities of text and accordingly represent values which were averaged over several texts. This means, however, that the language model is not well adapted to peculiarities of a special text. To achieve such an adaptation of a given language model to a special text on the basis of only a short text fragment, according to the invention, it is suggested that first the unigram language model is adapted with the short text and, in dependence thereon, the M-gram language model is subsequently adapted. A method is described for adapting the unigram language model values which automatically carries out a subdivision of the words into semantic classes.

REFERENCES:
patent: 5384892 (1995-01-01), Strong
patent: 5390279 (1995-02-01), Strong
patent: 5613036 (1997-03-01), Strong
patent: 5651096 (1997-07-01), Pallakoff
patent: 5680511 (1997-10-01), Baker et al.
patent: 5899973 (1995-05-01), Bandara et al.
R. Kneser et al: "Semantic Clustering for Adaptive Language Modeling" 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing (Cat. No. 97CB36052), 1997 IEEE International Confernece on Acoustics, Speech and Signal Processing, Munich, Germany, Apr. 21-24, 1997, pp. 779-782, vol. 2, XPoo2089828, ISBN 0-81-86-7919-0, 1997, Los Alamitos, CA, USA, IEEE Comput. Soc. Press, USA.
"On the Dynamic Adaption of Stochastic Language Models", by Reinhard Kneser et al, IEEE, 1993, pp. II-586-II-589.
"A Cache-Based Natural Language Model for Speech Recognition", by Roland Kuhn et al, IEE Transactions Pattern Analysis and Machine Intelligence, Vol. 12, No. 6, Jun. 1990.

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