Document (#36710)

Author
Vallet, D.
Fernández, M.
Castells, P.
Title
¬An ontology-based information retrieval model
Source
The Semantic Web: research and applications ; second European Semantic WebConference, ESWC 2005, Heraklion, Crete, Greece, May 29 - June 1, 2005 ; proceedings. Eds.: A. Gómez-Pérez u. J. Euzenat
Imprint
Berlin : Springer
Year
2005
Pages
S.455-470
Series
Lecture Notes in Computer Science ; 3532
Abstract
Semantic search has been one of the motivations of the Semantic Web since it was envisioned. We propose a model for the exploitation of ontologybased KBs to improve search over large document repositories. Our approach includes an ontology-based scheme for the semi-automatic annotation of documents, and a retrieval system. The retrieval model is based on an adaptation of the classic vector-space model, including an annotation weighting algorithm, and a ranking algorithm. Semantic search is combined with keyword-based search to achieve tolerance to KB incompleteness. Our proposal is illustrated with sample experiments showing improvements with respect to keyword-based search, and providing ground for further research and discussion.
Theme
Semantisches Umfeld in Indexierung u. Retrieval
Wissensrepräsentation

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