Conference paper

 
Burget, L., Matějka, P., Černocký, J.: Discriminative Training Techniques for Acoustic Language Identification, In: Proceedings of ICASSP 2006, Toulouse, FR, 2006, p. 209-212
Publication language:english
Original title:Discriminative Training Techniques for Acoustic Language Identification
Title (cs):Diskriminativní trénování pro automatickou identifikaci jazyka
Pages:209-212
Proceedings:Proceedings of ICASSP 2006
Conference:International Conference on Acoustics, Speech, and Signal Processing
Place:Toulouse, FR
Year:2006
URL:http://www.fit.vutbr.cz/research/groups/speech/publi/2006/burget_mmi_lid_icassp2006.pdf [PDF]
Keywords
language identification, language recognition, acoustic modeling, disriminative training, maximum mutual information
Annotation
This paper presents comparison of Maximum Likelihood (ML)
and  discriminative Maximum Mutual Information (MMI) training
 for acoustic modeling in language identification (LID). Clear  advantage of MMI over ML training is shown. The final error rate compares favorably to other results published on NIST 2003 data.
Abstract
This paper presents comparison of Maximum Likelihood (ML)
and  discriminative Maximum Mutual Information (MMI) training
 for acoustic modeling in language identification (LID). Both approaches are compared  on state-of-the-art shifted delta-cepstra features, the results are reported on data from NIST 2003 evaluations. Clear  advantage of MMI over ML training is shown. Further improvements of acoustic LID are discussed: Heteroscedastic Linear Discriminant Analysis (HLDA) for feature de-correlation and dimensionality reduction and Ergodic Hidden Markov models (EHMM) for better modeling of dynamics in the acoustic space. The final error rate compares favorably to  other results published on NIST 2003 data.

BibTeX:
@INPROCEEDINGS{
   author = {Lukáš Burget and Pavel Matějka and Jan Černocký},
   title = {Discriminative Training Techniques for Acoustic Language
	Identification},
   pages = {209--212},
   booktitle = {Proceedings of ICASSP 2006},
   year = {2006},
   location = {Toulouse, FR},
   language = {english},
   url = {http://www.fit.vutbr.cz/research/view_pub.php?id=8132}
}