Contextual confidence measures for continuous speech recognition
Tipus de documentText en actes de congrés
EditorInstitute of Electrical and Electronics Engineers (IEEE)
Condicions d'accésAccés obert
This paper explores the repercussion of contextual information into confidence measuring for continuous speech recognition results. Our approach comprises three steps: to extract confidence predictors out of recognition results, to compile those predictors into confidence measures by means of a fuzzy inference system whose parameters have been estimated, directly from examples, with an evolutionary strategy and, finally, to upgrade the confidence measures by the inclusion of contextual information. Through experimentation with two different continuous speech application tasks, results show that the context re-scoring procedure improves the capabilities of confidence measures to discriminate between correct and incorrect recognition results for every level of thresholding, even when a rather simple method to add contextual information is considered.
CitacióHernández-Abrego, G., Mariño, J.B. Contextual confidence measures for continuous speech recognition. A: IEEE International Conference on Acoustics, Speech, and Signal Processing. "ICASSP 2000: 2000 IEEE international conference on acoustics, speech, and signal processing: silver anniversary, proceedings: 5-9 June 2000: Hilton Hotel and Convention Center, Istanbul, Turkey". Istanbul: Institute of Electrical and Electronics Engineers (IEEE), 2000, p. 1803-1086.
Versió de l'editorhttp://ieeexplore.ieee.org/document/862104/