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dc.contributor |
Universitat de Vic. Escola Politècnica Superior |
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dc.contributor |
Universitat de Vic. Grup de Recerca en Tecnologies Digitals |
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dc.contributor.author |
Monte-Moreno, Enric
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dc.contributor.author |
Chetouani, Mohamed
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dc.contributor.author |
Faundez-Zanuy, Marcos
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dc.contributor.author |
Solé-Casals, Jordi
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dc.date.accessioned |
2013-02-13T09:00:04Z |
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dc.date.available |
2013-02-13T09:00:04Z |
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dc.date.created |
2009 |
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dc.date.issued |
2009 |
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dc.identifier.citation |
MONTE-MORENO, Enric i altres . "Maximum likelihood linear programming data fusion for speaker recognition". A: Speech Communication, 2009, vol. 51, núm. 9, pàg. 820-830 |
ca_ES |
dc.identifier.issn |
0167-6393 |
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dc.identifier.uri |
http://hdl.handle.net/10854/2075 |
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dc.description.abstract |
Biometric system performance can be improved by means of data fusion. Several kinds of
information can be fused in order to obtain a more accurate classification (identification or
verification) of an input sample. In this paper we present a method for computing the
weights in a weighted sum fusion for score combinations, by means of a likelihood model.
The maximum likelihood estimation is set as a linear programming problem. The scores are
derived from a GMM classifier working on a different feature extractor. Our experimental
results assesed the robustness of the system in front a changes on time (different sessions)
and robustness in front a change of microphone. The improvements obtained were
significantly better (error bars of two standard deviations) than a uniform weighted sum or a
uniform weighted product or the best single classifier. The proposed method scales
computationaly with the number of scores to be fussioned as the simplex method for linear
programming. |
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dc.format |
application/pdf |
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dc.format.extent |
19 p. |
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dc.language.iso |
eng |
ca_ES |
dc.publisher |
Elsevier |
ca_ES |
dc.rights |
(c) 2009 Elsevier. Published article is available at: http://dx.doi.org/10.1016/j.specom.2008.05.009 |
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dc.subject.other |
Veu, Processament de |
ca_ES |
dc.title |
Maximum likelihood Linear Programming Data Fusion for Speaker Recognition |
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dc.type |
info:eu-repo/semantics/article |
ca_ES |
dc.identifier.doi |
https://doi.org/10.1016/j.specom.2008.05.009 |
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dc.relation.publisherversion |
http://dx.doi.org/10.1016/j.specom.2008.05.009 |
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dc.rights.accessRights |
info:eu-repo/semantics/openAccess |
ca_ES |
dc.type.version |
info:eu-repo/acceptedVersion |
ca_ES |
dc.indexacio |
Indexat a SCOPUS |
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dc.indexacio |
Indexat a WOS/JCR |
ca_ES |
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