Data processing: speech signal processing – linguistics – language – Linguistics – Natural language
Patent
1996-12-05
1999-11-23
Hudspeth, David R.
Data processing: speech signal processing, linguistics, language
Linguistics
Natural language
704 10, G06F 1727
Patent
active
059917121
ABSTRACT:
Improved word accuracy of speech recognition can be achieved by providing a scheme for automatically limiting the acceptable word sequences. Speech recognition systems consistent with the present invention include a lexicon database with words and associated lexical properties. The systems receive exemplary clauses containing permissible word combinations for speech recognition, and identify additional lexical properties for selected words in the lexicon database corresponding to words in the received exemplary clauses using lexical property tests of a grammar database. Certain lexical property tests are switchable to a disabled state. To identify the additional lexical properties, the exemplary clauses are parsed with the switchable lexical property tests disabled to produce an index of the lexical properties corresponding to the exemplary clauses. The lexicon database is updated with the identified additional lexical properties by assigning the lexical properties to the corresponding words of the lexicon database. The grammar database is compiled with the lexical property tests enabled and the lexicon database with the assigned lexical properties to produce a grammar that embodies constraints of the lexical property tests and the lexical properties.
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Hudspeth David R.
Sun Microsystems Inc.
Zintel Harold
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