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- W2002123483 abstract "This paper presents a text-independent speaker verification system using support vector machines (SVMs) with score-space kernels. Score-space kernels generalize Fisher kernels and are based on underlying generative models such as Gaussian mixture models (GMMs). This approach provides direct discrimination between whole sequences, in contrast with the frame-level approaches at the heart of most current systems. The resultant SVMs have a very high dimensionality since it is related to the number of parameters in the underlying generative model. To address problems that arise in the resultant optimization we introduce a technique called spherical normalization that preconditions the Hessian matrix. We have performed speaker verification experiments using the PolyVar database. The SVM system presented here reduces the relative error rates by 34% compared to a GMM likelihood ratio system." @default.
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- W2002123483 date "2005-03-01" @default.
- W2002123483 modified "2023-09-24" @default.
- W2002123483 title "Speaker verification using sequence discriminant support vector machines" @default.
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- W2002123483 doi "https://doi.org/10.1109/tsa.2004.841042" @default.
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