Document (#37651)

Author
Mayr, P.
Schaer, P.
Mutschke, P.
Title
¬A science model driven retrieval prototype
Source
Concepts in context: Proceedings of the Cologne Conference on Interoperability and Semantics in Knowledge Organization July 19th - 20th, 2010. Eds.: F. Boteram, W. Gödert u. J. Hubrich
Imprint
Würzburg : Ergon
Year
2011
Pages
S.111-121
Series
Bibliotheca Academica - Reihe Informations- und Bibliothekswissenschaften; Bd. 1
Abstract
This paper is about a better understanding of the structure and dynamics of science and the usage of these insights for compensating the typical problems that arises in metadata-driven Digital Libraries. Three science model driven retrieval services are presented: co-word analysis based query expansion, re-ranking via Bradfordizing and author centrality. The services are evaluated with relevance assessments from which two important implications emerge: (1) precision values of the retrieval services are the same or better than the tf-idf retrieval baseline and (2) each service retrieved a disjoint set of documents. The different services each favor quite other - but still relevant - documents than pure term-frequency based rankings. The proposed models and derived retrieval services therefore open up new viewpoints on the scientific knowledge space and provide an alternative framework to structure scholarly information systems.
Theme
Semantische Interoperabilität
Semantisches Umfeld in Indexierung u. Retrieval

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