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dc.contributor.authorEjarque, Pascual
dc.contributor.authorHernando Pericás, Francisco Javier
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.date.accessioned2011-01-14T11:14:17Z
dc.date.available2011-01-14T11:14:17Z
dc.date.created2008
dc.date.issued2008
dc.identifier.citationEjarque, P.; Hernando, J. Bi-Gaussian score equalization in an audio-visual SVM-based person verification system. A: International Speech Communication Association. Conference. "9TH ANNUAL CONFERENCE OF THE INTERNATIONAL SPEECH COMMUNICATION ASSOCIATION". Brisbane: 2008, p. 2663-2666.
dc.identifier.isbn978-1-61567-378-0
dc.identifier.urihttp://hdl.handle.net/2117/11029
dc.description.abstractIn multimodal fusion systems a normalization of the features or the scores is needed before the fusion process. In this work, in addition to the conventional methods, histogram equalization, which was recently introduced by the authors in multimodal systems, and Bi-Gaussian equalization, which takes into account the separate statistics of the genuine and impostor scores, and is introduced in this paper, are applied upon the scores in a multimodal SVM-based person verification system composed by prosodic, speech spectrum, and face information. Bi-Gaussian equalization has obtained the best results and outperform in more than a 23.25% the results obtained by Min-Max normalization.
dc.format.extent4 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació
dc.subject.lcshSupport vector machines
dc.subject.lcshRadial basis functions
dc.subject.lcshBi-Gaussian equalization
dc.subject.lcshSignal theory (Telecommunication)
dc.titleBi-Gaussian score equalization in an audio-visual SVM-based person verification system
dc.typeConference report
dc.subject.lemacGauss, Carl Friedrich, 1777-1855
dc.subject.lemacSenyal, Teoria del (Telecomunicació)
dc.contributor.groupUniversitat Politècnica de Catalunya. VEU - Grup de Tractament de la Parla
dc.relation.publisherversionhttp://www.lsi.upc.edu/~nlp/papers/hernando_bigaus.pdf
dc.rights.accessOpen Access
local.identifier.drac2544053
dc.description.versionPostprint (published version)
local.citation.authorEjarque, P.; Hernando, J.
local.citation.contributorInternational Speech Communication Association. Conference
local.citation.pubplaceBrisbane
local.citation.publicationName9TH ANNUAL CONFERENCE OF THE INTERNATIONAL SPEECH COMMUNICATION ASSOCIATION
local.citation.startingPage2663
local.citation.endingPage2666


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