Shashanka Ubaru, Lior Horesh, et al.
Journal of Biomedical Informatics
This letter describes speaker verification using a covariance-modeling approach for speaker and world modeling. Two verification methods are suggested: frame level scoring and utterance level scoring. Both methods exhibit extremely low computational and model-storage requirements. The suggested methods are tested on the male segment of the 1999 NIST Speaker Recognition Evaluation corpus, using a single training session, and compared to a Gaussian mixture model (GMM) system. The degradation in accuracy and the computational requirements are estimated. Covariance modeling is seen to be a viable alternative to GMM whenever computational and storage requirements must to be traded with verification accuracy.
Shashanka Ubaru, Lior Horesh, et al.
Journal of Biomedical Informatics
A.R. Conn, Nick Gould, et al.
Mathematics of Computation
Harpreet S. Sawhney
IS&T/SPIE Electronic Imaging 1994
Matthew A Grayson
Journal of Complexity