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The Hearsay-I Speech Understanding System: An Example of the Recognition Process

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4 Author(s)
Reddy, D.R. ; Department of Computer Science, Carnegie-Mellon University ; Erman, L.D. ; Fennell, R.D. ; Neely, R.

This paper describes the structure and operation of the Hearsay-I1speech 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.

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Computers, IEEE Transactions on  (Volume:C-25 ,  Issue: 4 )