Title
Angle of Models Distance as Test Algorithm in Speaker Verification
Abstract
In this paper we introduce the angle of models Mahalanobis distance as the test algorithm in the text- independent speaker verification system. In test process, the test speech is adapted to a new model instead of calculating the log-likelihood ratio scores, then the Mahalanobis distances among the UBM model, the speaker model and the test speech model are calculated. These three models distances form a triangle. The angle of the triangle can be treated as the test scores. When we employ the proposed algorithm in GMM_UBM system, the recognition rate can be almost identical with the traditional log-likelihood ratio scores, while the computation load can be dramatically cut down. That is very helpful to the real-time application of the speaker recognition or verification. Further more, when we fuse angle scores with the log-likelihood ratio scores, the EER of the speaker verification can be reduced by 12~15% in 2002 NIST evaluation corpus.
Year
DOI
Venue
2007
10.1109/FSKD.2007.174
FSKD (4)
Keywords
Field
DocType
speaker model,speaker verification,test process,new model,ubm model,models distance,test algorithm,test speech model,independent speaker verification system,log-likelihood ratio score,test speech,test score,log likelihood ratio,mahalanobis distance,gaussian processes,speaker recognition
Speaker verification,Test algorithm,Computer science,Mahalanobis distance,Speaker recognition,Artificial intelligence,Gaussian process,Fuse (electrical),Computation,Pattern recognition,Speech recognition,NIST,Machine learning
Conference
ISBN
Citations 
PageRank 
0-7695-2874-0
0
0.34
References 
Authors
7
4
Name
Order
Citations
PageRank
Wu Guo1136.79
Pan Lei250.83
Ren-Hua Wang334441.36
Li-Rong Dai41070117.92