Extending the task of diarization to speaker attribution

Ghaemmaghami, Houman, Dean, David, Vogt, Robbie, & Sridharan, Sridha (2011) Extending the task of diarization to speaker attribution. In Interspeech 2011, 28-31 August 2011, Florence, Italy.

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In this paper we extend the concept of speaker annotation within a single-recording, or speaker diarization, to a collection wide approach we call speaker attribution. Accordingly, speaker attribution is the task of clustering expectantly homogenous intersession clusters obtained using diarization according to common cross-recording identities. The result of attribution is a collection of spoken audio across multiple recordings attributed to speaker identities. In this paper, an attribution system is proposed using mean-only MAP adaptation of a combined-gender UBM to model clusters from a perfect diarization system, as well as a JFA-based system with session variability compensation. The normalized cross-likelihood ratio is calculated for each pair of clusters to construct an attribution matrix and the complete linkage algorithm is employed to conduct clustering of the inter-session clusters. A matched cluster purity and coverage of 87.1% was obtained on the NIST 2008 SRE corpus.

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ID Code: 43351
Item Type: Conference Paper
Refereed: Yes
Keywords: speaker attribution, diarization, clustering, cross likelihood ration, joint factor analysis
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Signal Processing (090609)
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 2011 (please consult the authors).
Deposited On: 19 Jul 2011 01:24
Last Modified: 03 Jun 2015 22:37

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