EUROSPEECH 2001 Scandinavia
7th European Conference on Speech Communication and Technology
2nd INTERSPEECH Event

Aalborg, Denmark
September 3-7, 2001

                 

Enhancing GMM Scores using SVM "Hints"

Shai Fine, Jiri Navratil, Ramesh A. Gopinath

IBM T.J. Watson Research Center, USA

This paper proposes a classification scheme that combines statistical models and support vector machines. It exploits the fact that GMM and SVM classifiers with roughly the same level of performance produce uncorrelated errors. We describe a novel scheme which employs an SVM classifier as an ``advisor'' to the GMM classifier in uncertain cases. The utility of the combined generative/discriminative approach is demonstrated on standard text-independent speaker verification and speaker identification tasks in matched and mismatched training and test conditions. Results indicate significant improvements in performance without much computational overhead.

Full Paper

Bibliographic reference.  Fine, Shai / Navratil, Jiri / Gopinath, Ramesh A. (2001): "Enhancing GMM scores using SVM "hints"", In EUROSPEECH-2001, 1757-1760.