NDLI: Combining Semantics, Context, and Statistical Evidence in Genomics Literature Search

Content Provider	IEEE Xplore Digital Library
Author	Urbain, J. Goharian, N. Frieder, O.
Copyright Year	2007
Description	Author affiliation: Illinois Inst. of Technol., Chicago (Urbain, J.; Goharian, N.)
Abstract	We present an information retrieval model for combining evidence from concept-based semantics, term statistics, and context for improving search precision of genomics literature by accurately identifying concise, variable length passages of text to answer a user query. The system combines a dimensional data model for indexing scientific literature at multiple levels of document structure and context with a rule-based query processing algorithm. The query processing algorithm uses an iterative information extraction technique to identify query concepts, and a retrieval function for systematically combining concepts with term statistics at multiple levels of context. We define context by variable length passages of text and different levels of document lexical structure including terms, sentences, paragraphs, and entire documents. Our results demonstrate improved search results in the presence of varying levels of semantic evidence, and higher performance using retrieval functions that combine document as well as sentence and passage level information versus using document, sentence or passage level information alone. Initial results are promising. When ranking documents based on the most relevant extracted passages, the results exceed the state-of-the-art by 13.89% as assessed by the TREC 2005 Genomics track collection of 4.5 million MEDLINE citations.
Starting Page	1313
Ending Page	1317
File Size	377983
Page Count	5
File Format	PDF
ISBN	9781424415090
DOI	10.1109/BIBE.2007.4375738
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-10-14
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Genomics Bioinformatics Information retrieval Statistics Query processing Iterative algorithms Data mining Context modeling Data models Indexing I.2.7 [Artificial Intelligence]: Natural Language Processing-text analysis H.3.3 [Information Storage and Retrieval]: Information Search and Retrieval-search process H.3.1 [Information Storage and Retrieval]: Context Analysis and Indexing-linguistic processing
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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