Pattern recognition

Details Pattern recognition Pattern recognition

G - Physics

06

K

G06K 9/62 (2006.01) G10L 15/06 (2006.01)

Patent

CA 2262091

A method is provided for deriving recognition reference data for use in pattern recognition and, in particular, speech recognition. According to the invention, recognition reference data are provided comprising a first part representing valid items of speech or non-speech sounds, and a second part derived from those portions of an input signal known to give rise to recognition errors. In particular, reference data are provided to model insertion errors and substitution errors known to occur in recognition results.

L'invention concerne un procédé permettant de dériver des données de référence de reconnaissance destinées à la reconnaissance de formes, notamment à la reconnaissance de la parole. Selon l'invention, les données de référence de reconnaissance comprennent une première partie représentant les items valides des sons vocaux et non vocaux, et une seconde partie dérivée des parties d'un signal d'entrée connu pour provoquer des erreurs de reconnaissance. En particulier, les données de référence permettent de modéliser des erreurs d'insertion et des erreurs de substitution connues que l'on trouve, on le sait, dans les résultats de la reconnaissance.

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