EUROSPEECH '91
Second European Conference on Speech Communication and Technology

Genova, Italy
September 24-26, 1991

                 

Assessment of Continuous Speech Recognisers Using Recogniser Sensitivity Analysis

Richard Winski, Kamran Kordi

LOGICA CAMBRIDGE LTD, Cambridge, UK

This paper describes the use of Recogniser Sensitivity Analysis (RSA) for performance assessment of a connected word, speaker independent speech recogniser. A number of speech-production factors were considered and an analysis of variance indicated that relative energy, word duration and speaker consistency were found to account for over 86% of the variability in recognition performance for this data set. Second-order interaction effects between these were not significant indicating that the parameters can be considered independent. This permits the performance to be predicted as a function of each parameter independently. The results confirm the value of RSA both for obtaining diagnostic information about recognition performance, and as a method of predicting performance. Keywords: performance assessment; continuous speech recognition; recogniser sensitivity analysis

Full Paper

Bibliographic reference.  Winski, Richard / Kordi, Kamran (1991): "Assessment of continuous speech recognisers using recogniser sensitivity analysis", In EUROSPEECH-1991, 521-524.