NDLI: Robust dialogue-state dependent language modeling using leaving-one-out

Content Provider	IEEE Xplore Digital Library
Author	Wessel, F. Baader, A.
Copyright Year	1999
Description	Author affiliation: Lehrstuhl fur Inf., Tech. Hochschule Aachen, Germany (Wessel, F.)
Abstract	The use of dialogue-state dependent language models in automatic inquiry systems can improve speech recognition and understanding if a reasonable prediction of the dialogue state is feasible. In this paper, the dialogue state is defined as the set of parameters which are contained in the system prompt. For each dialogue state a separate language model is constructed. In order to obtain robust language models despite the small amount of training data we propose to interpolate all of the dialogue-state dependent language models linearly for each dialogue state and to train the large number of resulting interpolation weights with the EM-algorithm in combination with leaving-one-out. We present experimental results on a small Dutch corpus which has been recorded in the Netherlands with a train timetable information system and show that the perplexity and the word error rate can be reduced significantly.
Starting Page	741
Ending Page	744
File Size	432139
Page Count	4
File Format	PDF
ISBN	0780350413
ISSN	15206149
DOI	10.1109/ICASSP.1999.759773
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-03-15
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Robustness Interpolation Predictive models Speech recognition Information systems Context modeling Natural languages Training data Error analysis Automatic speech recognition
Content Type	Text
Resource Type	Article

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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