Skip to content

Publications

Detail of publication

Citation

Pražák Aleš and Ircing Pavel and Švec Jan and Psutka Josef V. : Efficient Combination of N-gram Language Models and Recognition Grammars in Real-Time LVCSR Decoder . 9th International Conference on Signal Processing Proceedings, vol. ;, p. 587-591, IEEE, Peking, Čína, 2008.

Abstract

The paper presents a method for incorporation of regular grammars into n-gram language models. Such composite model then benefits from both language modeling formalisms - a grammar yields robust probability estimates for well-defined phrases with fixed structure whereas the n-gram provides better coverage of casual speech. Moreover, the grammar allows adding new words to the phrase pattern while taking advantage of the existing structural (context) information. The proposed method for grammar incorporation allows the use of combined models in our in-house real-time decoder which is designed to work only with standard n-gram language model. The performance of the combined model was tested in the dictation task where a simple grammar was designed for date entries. A statistically significant improvement of WER was achieved.

Detail of publication

Title: Efficient Combination of N-gram Language Models and Recognition Grammars in Real-Time LVCSR Decoder
Author: Pražák Aleš ; Ircing Pavel ; Švec Jan ; Psutka Josef V.
Language: English
Year: 2008
Type of publication: Papers in proceedings of reviewed conferences
Title of journal or book: 9th International Conference on Signal Processing Proceedings
Číslo vydání: ;
Page: 587 - 591
ISBN: 978-1-4244-2178-7
Publisher: IEEE
Address: Peking, Čína
Date: 29 Oct 2008
2011-03-15 16:21:32 / 2011-06-09 12:30:02 / 1

Keywords

language modeling, n-gram, grammar, real-time, LVCSR

BibTeX

@INPROCEEDINGS{PrazakAles_2008_EfficientCombination,
 author = {Pra\v{z}\'{a}k Ale\v{s} and Ircing Pavel and \v{S}vec Jan and Psutka Josef V.},
 title = {Efficient Combination of N-gram Language Models and Recognition Grammars in Real-Time LVCSR Decoder},
 year = {2008},
 publisher = {IEEE},
 journal = {9th International Conference on Signal Processing Proceedings},
 address = {Peking, \v{C}\'{i}na},
 volume = {;},
 pages = {587-591},
 ISBN = {978-1-4244-2178-7},
 note = {Dopln\v{e}no UT ISI},
 url = {http://www.kky.zcu.cz/en/publications/PrazakAles_2008_EfficientCombination},
}