Language processing for speech understanding
Computer speech processing
The Hearsay-II Speech-Understanding System: Integrating Knowledge to Resolve Uncertainty
ACM Computing Surveys (CSUR)
Real-time linguistic analysis for continuous speech understanding
ANLC '92 Proceedings of the third conference on Applied natural language processing
Parsing spoken language: a semantic caseframe approach
COLING '86 Proceedings of the 11th coference on Computational linguistics
Robust parsing of severely corrupted spoken utterances
COLING '88 Proceedings of the 12th conference on Computational linguistics - Volume 1
Real-time linguistic analysis for continuous speech understanding
ANLC '92 Proceedings of the third conference on Applied natural language processing
Partial parsing as a robust parsing strategy
ICASSP'93 Proceedings of the 1993 IEEE international conference on Acoustics, speech, and signal processing: speech processing - Volume II
Test and evaluation of a spoken dialogue system
ICASSP'93 Proceedings of the 1993 IEEE international conference on Acoustics, speech, and signal processing: speech processing - Volume II
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This paper describes the approach followed in the development of the linguistic processor of the continuous speech dialog system implemented at our labs. The application scenario (voice-based information retrieval service over the telephone) poses severe specifications to the system: it has to be speaker-independent, to deal with noisy and corrupted speech, and to work in real time. To cope with these types of applications requires to improve both efficiency and accuracy. At present, the system accepts telephone-quality speech (utterances referring to an electronic mailbox access, recorded through a PABX) and, in the speaker-independent configuration, it correctly understands 72% of the utterances in about twice real time. Experimental results are discussed, as obtained from an implementation of the system on a Sun SparcStation 1 using the C language.