Conference paper

GRÉZL František, KARAFIÁT Martin and BURGET Lukáš. Investigation into bottle-neck features for meeting speech recognition. In: Proc. Interspeech 2009. Brighton: International Speech Communication Association, 2009, pp. 2947-2950. ISBN 978-1-61567-692-7. ISSN 1990-9772.
Publication language:english
Original title:Investigation into bottle-neck features for meeting speech recognition
Title (cs):Výzkum bottle-neck parametrů v rozpoznávání řeči z meetingů
Pages:2947-2950
Proceedings:Proc. Interspeech 2009
Conference:Interspeech 2009
Place:Brighton, GB
Year:2009
ISBN:978-1-61567-692-7
Journal:Proceedings of Interspeech, No. 9, FR
ISSN:1990-9772
Publisher:International Speech Communication Association
URL:http://www.fit.vutbr.cz/research/groups/speech/publi/2009/grezl_is2009.pdf [PDF]
Keywords
Bottle-neck, ANN architecture, features, LVCSR
Annotation
The paper is on investigation into bottle-neck features for meeting speech recognition. The bottle-neck ANN structure is imported into Split Context architecture gaining significant WER reduction.
Abstract
This work investigates into recently proposed Bottle-Neck features for ASR. The bottle-neck ANN structure is imported into Split Context architecture gaining significant WER reduction. Further, Universal Context architecture was developed which simplifies the system by using only one universal ANN for all temporal splits. Significant WER reduction can be obtained by applying fMPE on top of our BN features as a technique for discriminative feature extraction and further gain is also obtained by retraining model parameters using MPE criterion. The results are reported on meeting data from RT07 evaluation
BibTeX:
@INPROCEEDINGS{
   author = {Franti{\v{s}}ek Gr{\'{e}}zl and Martin Karafi{\'{a}}t and
	Luk{\'{a}}{\v{s}} Burget},
   title = {Investigation into bottle-neck features for meeting speech
	recognition},
   pages = {2947--2950},
   booktitle = {Proc. Interspeech 2009},
   journal = {Proceedings of Interspeech},
   number = {9},
   year = {2009},
   location = {Brighton, GB},
   publisher = {International Speech Communication Association},
   ISBN = {978-1-61567-692-7},
   ISSN = {1990-9772},
   language = {english},
   url = {http://www.fit.vutbr.cz/research/view_pub.php?id=9038}
}

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