2010, Volume 12, Issue 2
Strategic Study of CAE >> 2010, Volume 12, Issue 2
A new score normalizaion algorithm based on EMD-Tnorm for speaker verification
1. College of Telecommunications & Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China;
2. School of Computer Science,Nanjing University of Science & Technology, Nanjing 210094, China;
3. School of Mathematics & Information Engineering , Jiaxing University, Jiaxing, Zhejiang 314001, China
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Abstract
In this paper, the verification system from two aspects was improved. On one hand, we extended MixMax model that the EMD (earth mover's distance) can be applied, which can remove the disturbance of noise; on the other hand, we improved the Tnorm score normalization method based on the EMD. Experimental results show that this method can compensate the speaker-dependent and test-dependent variability, also show a stable performance improvement by decreasing the FA and FR.
Keywords
speaker verification ; robustness ; earth mover’s distance ; MixMax model
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References
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