The hearsay speech understanding system: an example of the recognition process

Authors:
D. R. Reddy;L. D. Erman;R. O. Fennell;R. B. Neely
Affiliations:
Computer Science Department, Carnegie-Mellon University, Pittsburgh, PA;Computer Science Department, Carnegie-Mellon University, Pittsburgh, PA;Computer Science Department, Carnegie-Mellon University, Pittsburgh, PA;Xerox Palo Alto Research Center, Palo Alto, CA and Computer Science Department, Carnegie-Mellon University, Pittsburgh, PA
Venue:
IJCAI'73 Proceedings of the 3rd international joint conference on Artificial intelligence
Year:
1973

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Abstract

This paper describes the structure and operation of the Hearsay speech understanding system by the use of a specific example illustrating the various stages of recognition. The system consists of a set of cooperating independent processes, each representing a source of Knowledge. The knowledge is used either to predict what may appear in a given context or to verify hypotheses resulting from a prediction. The structure of the system is illustrated by considering its Operation in a particular task situation: Voice-Chess. The representation and use of various sources of knowledge are outlined. Preliminary results of the reduction in search resulting from the use of various sources of knowledge are given.