Publication Details

Combining Linguistic and Statistical Knowledge Sources in Natural-Language Processing for ATIS

by Moore, Robert and Appelt, Douglas and Dowding, John and Gawron, J. Mark and Moran, Douglas

in Proceedings ARPA Spoken Language Systems Technology Workshop

Abstract

During the past year, significant improvements have been made in the natural-language processing technology used in the SRI ATIS spoken-language understanding system. The principal developments have been (1) the incorporation of information from the natural-language grammar and lexicon into a statistical language model that is used in both speech recognition and language understanding, (2) implementation of a robust interpretation component that constructs queries out of grammatical fragments when an utterance cannot be analyzed as a single phrase or utterance, and (3) a new context mechanism for air travel planning that constructs an explicit model of the user's intended itinerary.

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AIC Personnel

	Name	Title	E-mail
	Appelt, Doug E	Senior Computer Scientist