Scatter difference NAP for SVM speaker recognition
Baker, Brendan J., Vogt, Robert J., McLaren, Mitchell L., & Sridharan, Sridha (2009) Scatter difference NAP for SVM speaker recognition. In Massimo, Tistarelli & Nixon, Mark S. (Eds.) Advances in Biometrics : Third International Conferences, ICB 2009, Alghero, Italy, June 2-5, 2009, Proceedings. Springer , Berlin Heidelberg, pp. 464-473.
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This paper presents Scatter Difference Nuisance Attribute Projection (SD-NAP) as an enhancement to NAP for SVM-based speaker verification. While standard NAP may inadvertently remove desirable speaker variability, SD-NAP explicitly de-emphasises this variability by incorporating a weighted version of the between-class scatter into the NAP optimisation criterion. Experimental evaluation of SD-NAP with a variety of SVM systems on the 2006 and 2008 NIST SRE corpora demonstrate that SD-NAP provides improved verification performance over standard NAP in most cases, particularly at the EER operating point.
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|Item Type:||Book Chapter|
|Keywords:||Speaker recognition, Support vector machines, Session variability compensation, Scatter difference, Nuisance attribute projection|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering|
Past > Institutes > Information Security Institute
Past > Schools > School of Engineering Systems
|Copyright Owner:||Copyright 2009 Springer Berlin Heidelberg|
|Copyright Statement:||The original publication is available at SpringerLink http://www.springerlink.com|
|Deposited On:||06 Jan 2010 08:19|
|Last Modified:||01 Mar 2012 00:03|
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