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A novel view on information content of concepts in extremely large ontologies

  • Language and Computing Nv.

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Semantic distance and semantic similarity are two important information retrieval measures used in word sense disambiguation as well as for the assessment of how relevant concepts are with respect to the documents in which they are found A variety of calculation methods have been proposed in the literature, whereby methods taking into account the information content of an individual concept outperform those that don't. In this paper, we present a novel recursive approach to calculate a concept's information content based on the information content of the concepts to which it relates. The method is applicable to extremely large ontologies containing several million concepts and relationships amongst them. It is shown that a concept's information content as calculated by this method provides additional information with respect to an ontology that cannot be approximated by hierarchical edge-counting or human insight. In addition, it is suggested that the method can be used for quality control within large ontologies.

Original languageEnglish
Title of host publicationThe New Navigators
Subtitle of host publicationFrom Professional to Patients - Proceedings of MIE 2003
PublisherIOS Press
Pages409-414
Number of pages6
ISBN (Print)1586033476, 9781586033477
DOIs
StatePublished - 2003
Event18th International Congress of the European Federation for Medical Informatics, MIE 2003 - St. Malo, France
Duration: May 4 2003May 7 2003

Publication series

NameStudies in Health Technology and Informatics
Volume95
ISSN (Print)0926-9630
ISSN (Electronic)1879-8365

Conference

Conference18th International Congress of the European Federation for Medical Informatics, MIE 2003
Country/TerritoryFrance
CitySt. Malo
Period05/4/0305/7/03

Keywords

  • Information Content
  • Semantic Distance

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