Ing. Pavel Matějka, Ph.D.
| Glembek, O., Burget, L., Brümmer, N., Plchot, O., Matějka, P.: Discriminatively Trained i-vector Extractor for Speaker Verification, In: Proceedings of Interspeech 2011, Florence, IT, ISCA, 2011, s. 137-140, ISBN 978-1-61839-270-1, ISSN 1990-9772 | | Jazyk publikace: | angličtina |
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| Název publikace: | Discriminatively Trained i-vector Extractor for Speaker Verification |
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| Název (cs): | Diskriminativně trénovaný extraktor i-vektorů pro ověřování mluvčího |
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| Strany: | 137-140 |
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| Sborník: | Proceedings of Interspeech 2011 |
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| Konference: | Interspeech 2011 |
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| Místo vydání: | Florence, IT |
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| Rok: | 2011 |
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| ISBN: | 978-1-61839-270-1 |
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| Časopis: | Proceedings of Interspeech, roč. 2011, č. 8, FR |
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| ISSN: | 1990-9772 |
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| Vydavatel: | International Speech Communication Association |
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| URL: | http://www.fit.vutbr.cz/research/groups/speech/publi/2011/glembek_interspeech2011_386.pdf [PDF] |
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| Klíčová slova |
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| speaker verification, i-vectors, PLDA, discriminative
training |
| Anotace |
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Článek pojednává o diskriminativně trénovaném extraktoru i-vektorů pro ověřování mluvčího při použití techniky cross-entropy.
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| Abstrakt |
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| We propose a strategy for discriminative training of the ivector
extractor in speaker recognition. The original i-vector
extractor training was based on the maximum-likelihood generative
modeling, where the EM algorithm was used. In our approach,
the i-vector extractor parameters are numerically optimized
to minimize the discriminative cross-entropy error function.
Two versions of the i-vector extraction are studied-the
original approach as defined for Joint Factor Analysis, and the
simplified version, where orthogonalization of the i-vector extractor
matrix is performed. |
| BibTeX: |
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@INPROCEEDINGS{
author = {Ondřej Glembek and Lukáš Burget and Niko Brümmer and Oldřich
Plchot and Pavel Matějka},
title = {Discriminatively Trained i-vector Extractor for Speaker
Verification},
pages = {137--140},
booktitle = {Proceedings of Interspeech 2011},
journal = {Proceedings of Interspeech},
volume = {2011},
number = {8},
year = {2011},
location = {Florence, IT},
publisher = {International Speech Communication Association},
ISBN = {978-1-61839-270-1},
ISSN = {1990-9772},
language = {english},
url = {http://www.fit.vutbr.cz/research/view_pub.php?id=9752}
} |
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