Abstract
The objective of the Unisys Spoken Language Systems effort is to develop and demonstrate technology for the understanding of goal-directed spontaneous speech. The Unisys spoken language architecture couples speech recognition systems with the Unisys discourse understanding system, PUNDIT. PUNDIT is a broad-coverage language understanding system used in a variety of message understanding applications and has been extended to handle spoken input. Its power comes from the integration of syntax, semantics, and pragmatics processing, the ability to port rapidly to new task domains, and from an open, modular architecture. PUNDIT is unique in its ability to handle connected discourse; it includes a reference resolution module that tracks discourse entities and distinguishes references to previously mentioned entities from the introduction of new entities. The PUNDIT front-end supports turn-taking dialogue and permits the system to include both questions and answers in building an integrated discourse context, required for the handling of interactive communication. PUNDIT has been interfaced to several speech recognition systems (MIT SUMMIT and ITT VRS-1280) to perform applications in direction-finding assistance, air travel planning and air traffic control.
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Published on 01/01/2007
Volume 2007, 2007
DOI: 10.3115/112405.1138664
Licence: CC BY-NC-SA license
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