NDLI: Compression of exception lexicons for small footprint grapheme-to-phoneme conversion

Content Provider	IEEE Xplore Digital Library
Author	Meron, J. Veprek, P.
Copyright Year	2005
Description	Author affiliation: Panasonic Digital Networking Lab., Santa Barbara, CA, USA (Meron, J.; Veprek, P.)
Abstract	We present a method to reduce the memory footprint of a grapheme-to-phoneme conversion (G2P) module, without sacrificing accuracy. Since the G2P module is typically not 100% correct, it is common to augment the system with an exception lexicon - a list of words which the G2P does not handle correctly (and for which we require correct pronunciations), along with their corrected pronunciation. Since the size of the exception lexicon is one of the major limiting factors in reducing the overall size of the G2P module, we try to compress the exception lexicon. We suggest a novel compression method which is closely tied to the G2P conversion method. The idea behind this compression is that, even for words which are not transduced correctly, the decision trees generate a phonetic transcription which is close to the correct one. Therefore, it is sufficient to store only the correction in the exception lexicon. The correction information is represented in terms of corrections to the transduction process; it is thus able to take advantage of the knowledge gained from the training data regarding the probabilities of different corrections, and is used to obtain more efficient compression. An experiment showed that, by using this method, an exception pronunciation can be represented, on average, with less than 4 bits (a compression factor of 7, compared to the baseline representation).
Sponsorship	IEEE Signal Processing Soc
File Size	216726
File Format	PDF
ISBN	0780388747
ISSN	15206149
DOI	10.1109/ICASSP.2005.1415108
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-03-23
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Decision trees Training data Speech synthesis Cellular phones Learning systems Databases Writing Dictionaries
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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