NDLI: A Bayesian Network Model for Information Retrieval from Greek Texts

Content Provider	IEEE Xplore Digital Library
Author	Maragoudakis, M.
Copyright Year	2007
Description	Author affiliation: Univ. of the Aegean, Mytilene (Maragoudakis, M.)
Abstract	The present paper describes a Bayesian network approach to information retrieval (IR) from natural language texts in Greek. The network structure provides an intuitive representation of uncertainty relationships and the embedded conditional probability table is used by inference algorithms in an attempt to identify documents that are relevant to the user's needs, expressed in the form of Boolean queries. Our research has been directed in constructing a probabilistic IR framework that focus on assisting users perform ad-hoc retrieval of Greek documents from the domain of economics. Furthermore, users can integrate feedback regarding the relevance of the retrieved documents in an attempt to improve performance on upcoming requests. Towards these goals, we have developed the Bayesian network IR system and tested it on several web corpora with different application domains. We have developed two different approaches with regard to the structure: a simple one, where the structure is manually provided, and an automated one, where data mining is used in order to extract the network's structure. Results have depicted satisfactory performance in terms of precision-recall curves.
Starting Page	50
Ending Page	54
File Size	642158
Page Count	5
File Format	PDF
ISBN	9780769530154
ISSN	10823409
DOI	10.1109/ICTAI.2007.52
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-10-29
Publisher Place	Greece
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bayesian methods Information retrieval Natural languages Feedback Data mining Databases Information filtering Artificial intelligence Systems engineering and theory Uncertainty
Content Type	Text
Resource Type	Article

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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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