Conference paper

KARAFIÁT Martin, GRÉZL František, SCHWARZ Petr, BURGET Lukáš and ČERNOCKÝ Jan. Robust heteroscedastic linear discriminant analysis and LCRC posterior features in large vocabulary continuous speech recognition. In: Proc. Fifth Slovenian and First International Language Technologies Conference. Ljubljana, 2006, pp. 1-4.
Publication language:english
Original title:Robust heteroscedastic linear discriminant analysis and LCRC posterior features in large vocabulary continuous speech recognition
Title (cs):Robustní heteroscedastická linearní diskriminační analýza a LCRC posteriorní parametry v rozpoznávání řeči s velkým slovníkem
Pages:1-4
Proceedings:Proc. Fifth Slovenian and First International Language Technologies Conference
Conference:Fifth Slovenian and First International Language Technologies Conference
Place:Ljubljana, SI
Year:2006
URL:http://www.fit.vutbr.cz/research/groups/speech/publi/2006/karafiat_ltc_2006.pdf [PDF]
Keywords
speech processing, LVCSR, feature extraction, posterior features, discriminative transforms
Annotation
The paper is on robust heteroscedastic linear discriminant analysis and LCRC posterior features in large vocabulary continuous speech recognition
Abstract
This paper deals with feature extraction in speech recognition. Three robust variants of popular HLDA transform are investigated. Influence of adding posterior features to PLP feature stream is studied. The experimental results are obtained on CTS (continuous telephone speech) data. Silence-reduced HLDA and LCRC phoneme-state posterior features together provide more than 4% absolute improvement in word error rate.
BibTeX:
@INPROCEEDINGS{
   author = {Martin Karafi{\'{a}}t and Franti{\v{s}}ek Gr{\'{e}}zl and
	Petr Schwarz and Luk{\'{a}}{\v{s}} Burget and Jan
	{\v{C}}ernock{\'{y}}},
   title = {Robust heteroscedastic linear discriminant analysis and LCRC
	posterior features in large vocabulary continuous speech
	recognition},
   pages = {1--4},
   booktitle = {Proc. Fifth Slovenian and First International Language
	Technologies Conference},
   year = {2006},
   location = {Ljubljana, SI},
   language = {english},
   url = {http://www.fit.vutbr.cz/research/view_pub.php?id=8225}
}

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