Improving PLDA speaker verification using WMFD and linear-weighted approaches in limited microphone data conditions
Kanagasundaram, Ahilan, Dean, David B., & Sridharan, Sridha (2015) Improving PLDA speaker verification using WMFD and linear-weighted approaches in limited microphone data conditions. In Proceedings of the 16th Annual Conference of the International Speech Communication Association, Interspeech 2015, Interspeech 2015, Dresden, Germany, pp. 2332-2336.
This paper proposes the addition of a weighted median Fisher discriminator (WMFD) projection prior to length-normalised Gaussian probabilistic linear discriminant analysis (GPLDA) modelling in order to compensate the additional session variation. In limited microphone data conditions, a linear-weighted approach is introduced to increase the influence of microphone speech dataset. The linear-weighted WMFD-projected GPLDA system shows improvements in EER and DCF values over the pooled LDA- and WMFD-projected GPLDA systems in inter-view-interview condition as WMFD projection extracts more speaker discriminant information with limited number of sessions/ speaker data, and linear-weighted GPLDA approach estimates reliable model parameters with limited microphone data.
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|Item Type:||Conference Paper|
|Keywords:||speaker verification, i-vectors, GPLDA, WMFD, linear-weighted|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Signal Processing (090609)
Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000) > OTHER TECHNOLOGY (109900)
|Divisions:||Current > Schools > School of Electrical Engineering & Computer Science
Past > QUT Faculties & Divisions > Faculty of Science and Technology
Past > Institutes > Information Security Institute
|Copyright Owner:||Copyright 2015 [Please consult the author]|
|Deposited On:||01 Jul 2015 22:35|
|Last Modified:||24 Sep 2015 07:33|
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