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 [BibTeX] [Marc21]
Advances in Fast Multistream Diarization based on the Information Bottleneck Framework
Type of publication: Idiap-RR
Citation: Vijayasenan_Idiap-RR-23-2010
Number: Idiap-RR-23-2010
Year: 2010
Month: 7
Institution: Idiap
Abstract: Multistream diarization is an effective way to improve the diarization performance, MFCC and Time Delay Of Arrivals (TDOA) being the most commonly used features. This paper extends our previous work on information bottleneck diarization aiming to include large number of features besides MFCC and TDOA while keeping computational costs low. At first HMM/GMM and IB systems are compared in case of two and four feature streams and analysis of errors is performed. Results on a dataset of 17 meetings show that, in spite of comparable oracle performances, the IB system is more robust to feature weight variations. Then a sequential optimization is introduced that further improves the speaker error by 5 − 8% relative. In the last part, computational issues are discussed. The proposed approach is significantly faster and its complexity marginally grows with the number of feature streams running in 0.75 realtime even with four streams achieving a speaker error equal to 6%.
Projects Idiap
Authors Vijayasenan, Deepu
Valente, Fabio
Bourlard, Hervé
Crossref by Vijayasenan_INTERSPEECH_2010
Added by: [ADM]
Total mark: 0
  • Vijayasenan_Idiap-RR-23-2010.pdf (MD5: aec7f0aef5dba9956c7733a3e344fc71)