logo Idiap Research Institute        
 [BibTeX] [Marc21]
Mutual Information based Channel Selection for Speaker Diarization of Meetings Data
Type of publication: Conference paper
Citation: Vijayasenan_ICASSP-2_2009
Booktitle: Proceedings of International conference on acoustics speech and signal processing
Year: 2009
Month: 4
Abstract: This paper aims at investigating the use of Kullback-Leibler (KL) divergence based realignment with application to speaker diarization. The use of KL divergence based realignment operates directly on the speaker posterior distribution estimates and is compared with traditional realignment performed using HMM/GMM system. We hypothesize that using posterior estimates to re-align speaker boundaries is more robust than gaussian mixture models in case of multiple feature streams with different statistical properties. Experiments are run on the NIST RT06 data. These experiments reveal that in case of conventional MFCC features the two approaches yields the same performance while the KL based system outperforms the HMM/GMM re-alignment in case of combination of multiple feature streams (MFCC and TDOA).
Keywords:
Projects Idiap
AMIDA
IM2
Authors Vijayasenan, Deepu
Valente, Fabio
Bourlard, Hervé
Added by: [UNK]
Total mark: 0
Attachments
    Notes