Using lexical chains for keyword extraction

Date
2007-11
Authors
Ercan, G.
Cicekli, I.
Advisor
Supervisor
Co-Advisor
Co-Supervisor
Instructor
Source Title
Information Processing and Management
Print ISSN
0306-4573
Electronic ISSN
Publisher
Elsevier Ltd
Volume
43
Issue
6
Pages
1705 - 1714
Language
English
Type
Article
Journal Title
Journal ISSN
Volume Title
Series
Abstract

Keywords can be considered as condensed versions of documents and short forms of their summaries. In this paper, the problem of automatic extraction of keywords from documents is treated as a supervised learning task. A lexical chain holds a set of semantically related words of a text and it can be said that a lexical chain represents the semantic content of a portion of the text. Although lexical chains have been extensively used in text summarization, their usage for keyword extraction problem has not been fully investigated. In this paper, a keyword extraction technique that uses lexical chains is described, and encouraging results are obtained. © 2007 Elsevier Ltd. All rights reserved.

Course
Other identifiers
Book Title
Keywords
Keyword extraction, Lexical chains, Machine learning, Natural language processing, Classification (of information), Learning systems, Natural language processing systems, Semantics, Text processing
Citation
Published Version (Please cite this version)