Title
Discriminatively Trained Probabilistic Linear Discriminant Analysis For Speaker Verification
Abstract
Recently, i-vector extraction and Probabilistic Linear Discriminant Analysis (PLDA) have proven to provide state-of-the-art speaker verification performance. In this paper, the speaker verification score for a pair of i-vectors representing a trial is computed with a functional form derived from the successful PLDA generative model. In our case, however, parameters of this function are estimated based on a discriminative training criterion. We propose to use the objective function to directly address the task in speaker verification: discrimination between same-speaker and different-speaker trials. Compared with a baseline which uses a generatively trained PLDA model, discriminative training provides up to 40% relative improvement on the NIST SRE 2010 evaluation task.
Year
DOI
Venue
2011
10.1109/ICASSP.2011.5947437
2011 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING
Keywords
Field
DocType
Speaker verification, Discriminative training, Probabilistic Linear Discriminant Analysis
Speaker verification,Pattern recognition,Computer science,Support vector machine,Feature extraction,Speech recognition,NIST,Speaker recognition,Artificial intelligence,Probabilistic logic,Discriminative model,Generative model
Conference
ISSN
Citations 
PageRank 
1520-6149
59
3.16
References 
Authors
9
6
Name
Order
Citations
PageRank
Lukas Burget11268.38
Oldrich Plchot232730.88
Sandro Cumani320018.81
Ondřej Glembek485264.75
Petr Schwarz599169.47
Niko Brümmer659544.01