Title :
A hybrid GMM/SVM approach to speaker identification
Author :
Fine, Shai ; Navratil, J. ; Gopinath, Ramesh A.
Author_Institution :
IBM Thomas J. Watson Res. Center, Yorktown Heights, NY, USA
Abstract :
Proposes a classification scheme that incorporates statistical models and support vector machines. A hybrid system which appropriately combines the advantages of both the generative and discriminant model paradigms is described and experimentally evaluated on a text-independent speaker recognition task in matched and mismatched training and test conditions. Our results prove that the combination is beneficial in terms of performance and practical in terms of computation. We report relative improvements of up to 25% reduction in identification error rate compared to the baseline statistical model
Keywords :
covariance matrices; information theory; learning (artificial intelligence); learning automata; pattern classification; speaker recognition; statistical analysis; classification scheme; discriminant model; generative model; hybrid GMM/SVM approach; hybrid Gaussian mixture models/support vector machine approach; identification error rate; speaker identification; statistical models; text-independent speaker recognition task; Acoustic testing; Electronic mail; Hidden Markov models; Hybrid power systems; Kernel; Power generation; Robustness; Speaker recognition; Support vector machine classification; Support vector machines;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on
Conference_Location :
Salt Lake City, UT
Print_ISBN :
0-7803-7041-4
DOI :
10.1109/ICASSP.2001.940856