A Study of the Capability of Grammatical Analysis to Improve Accuracy in Continuous Speech Recognition for Command and Control.
Final rept. 1 May 71-30 Apr 74,
CENTER FOR COMMUNICATIONS RESEARCH INC ROCHESTER N Y
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The program is directed toward the development of a theory of speech understanding systems which explicates the role to be played by linguistic constraints syntax and semantics in correcting the errors resulting from word recognition at the acoustic-phonetic-lexical level alone. The general model of a speech understanding system which provides the framework for this study is that which views speech understanding as basically an acoustic-phonetic word recognition process, whose decisions are questioned, and sometimes overruled, by criteria at the syntactic and semantic levels. The principal components of this model are 1 an acoustic to phonetic transformation, 2 a lexical process the lexical process along with the acoustic to phonetic transformation constitute the basic word recognition system whose output is judged by higher level linguistic constraints, 3 a model of standard English syntax, 4 a model of standard English semantics, and 5 an integrating process which determines the strategies to be used in backtracking over previous decisions. Modified author abstract
- Command, Control and Communications Systems