Associative and spatial relationships in thesaurus-based retrieval

Harith Alani*, Christopher Jones, D Tudhope

*Corresponding author for this work

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The OASIS (Ontologically Augmented Spatial Information System) project explores terminology systems for thematic and spatial access in digital library applications. A prototype implementation uses data from the Royal Commission on the Ancient and Historical Monuments of Scotland, together with the Getty AAT and TGN thesauri, This paper describes its integrated spatial and thematic schema and discusses novel approaches to the application of thesauri in spatial and thematic semantic distance measures. Semantic distance measures can underpin interactive and automatic query expansion techniques by ranking lists of candidate terms. We first illustrate how hierarchical spatial relationships can be used to provide more flexible retrieval for queries incorporating place names in applications employing online gazetteers and geographical thesauri. We then employ a set of experimental scenarios to investigate key issues affecting use of the associative (RT) thesaurus relationships in semantic distance measures. Previous work has noted the potential of RTs in thesaurus search aids but the problem of increased noise in result sets has been emphasised. Specialising RTs allows the possibility of dynamically linking RT type to query context. Results presented in this paper demonstrate the potential for Filtering on the context of the RT link and on subtypes of RT relationships.

Original languageEnglish
Title of host publicationResearch and Advanced Technology for Digital Libraries, Proceedings
EditorsJ. Borbinha, T. Baker
Number of pages14
ISBN (Print)3-540-41023-6
Publication statusPublished - 2000
Event4th European Conference on Research and Advanced Technology for Digital Libraries (ECDL 2000) - LISBON, Portugal
Duration: 18 Sept 200020 Sept 2000

Publication series

NameLecture Notes in Computer Science
PublisherSpringer-Verlag, Berlin
ISSN (Print)0302-9743


Conference4th European Conference on Research and Advanced Technology for Digital Libraries (ECDL 2000)




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