NDLI: An experiment stemming non-traditional text

Content Provider	IEEE Xplore Digital Library
Author	Nascimento, M.A. Da Cunha, A.C.R.
Copyright Year	1998
Description	Author affiliation: CNPTIA-EMBRAPA, Sao Paulo, Brazil (Nascimento, M.A.)
Abstract	Stemming is a technique which aims to extract common suffixes of words. Thus, words which are literally different but have a common stem, may be abstracted by their common stem. The underlying goal when using a stemming technique is to improve recall, at the possible expense of precision loss. A well known technique for stemming text is M.F. Porter's (1980) algorithm, which is based on a set of rules extracted from the English language. We argue that such an algorithm it is not efficient for non traditional texts, e.g., one made up mainly of medical terms. We thus investigate the use of a technique, called Peak-and-Plateau, which is based on tries, and compare it to Porter's algorithm. Our experiments have shown that using Porter's algorithm or none at all makes no difference as far as precision and recall goes. On the other hand using the Peak-and-Plateau technique we improved recall by about 15% and decreased precision by an average of 40%. Moreover it compressed the original text by 40% and the invented file by 45%.
Starting Page	75
Ending Page	80
File Size	54763
Page Count	6
File Format	PDF
ISBN	0818686642
DOI	10.1109/SPIRE.1998.712985
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-09-11
Publisher Place	Bolivia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Insects Read only memory Information retrieval Fires
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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