Bibliograph. Daten | Lange, Ralph; Dürr, Frank; Rothermel, Kurt: Indexing Source Descriptions for Large-Scale Distributed Ontology-based Information Systems. Universität Stuttgart : Sonderforschungsbereich SFB 627 (Nexus: Umgebungsmodelle für mobile kontextbezogene Systeme), SFB 627 Bericht 2009/04 (extern). 33 Seiten, englisch.
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CR-Klassif. | H.2.5 (Heterogeneous Databases)
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Keywords | Ontology-based DIS; source discovery; defined classes |
Kurzfassung | Scaling distributed information systems (DIS) to thousands of information sources raises specific requirements to the discovery of relevant sources for a given application task or query since each source generally covers a very small clipping of the overall domain of discourse only. We propose a novel approach for concisely describing these domain clippings of the sources by defined classes based on a shared ontology. To allow for distributed DIS at a global scale, we present a powerful index structure named SDC-Tree for indexing millions of these source descriptions for retrieving those descriptions that match a given query efficiently.
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Kontakt | ralph.lange@ipvs.uni-stuttgart.de |
Abteilung(en) | Universität Stuttgart, Institut für Parallele und Verteilte Systeme, Verteilte Systeme
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Projekt(e) | SFB-627, B5 (Universität Stuttgart, Institut für Parallele und Verteilte Systeme, Verteilte Systeme)
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Eingabedatum | 16. Dezember 2009 |
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