Automatic Keyword Extraction Using Domain Knowledge

Authors:
Anette Hulth;Jussi Karlgren;Anna Jonsson;Henrik Boström;Lars Asker
Affiliations:
-;-;-;-;-
Venue:
CICLing '01 Proceedings of the Second International Conference on Computational Linguistics and Intelligent Text Processing
Year:
2001

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Abstract

Documents can be assigned keywords by frequency analysis of the terms found in the document text, which arguably is the primary source of knowledge about the document itself. By including a hierarchically organised domain specific thesaurus as a second knowledge source the quality of such keywords was improved considerably, as measured by match to previously manually assigned keywords. In the presented experiment, the combination of the evidence from frequency analysis and the hierarchically organised thesaurus was done using inductive logic programming.