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SemWIQ – Semantic Web Integrator and Query Engine

dc.contributor.authorLangegger, Andreas
dc.contributor.authorWöß, Wolfram
dc.contributor.editorHegering, Heinz-Gerd
dc.contributor.editorLehmann, Axel
dc.contributor.editorOhlbach, Hans Jürgen
dc.contributor.editorScheideler, Christian
dc.date.accessioned2019-04-03T12:45:20Z
dc.date.available2019-04-03T12:45:20Z
dc.date.issued2008
dc.description.abstractOne of the most popular applications of Semantic Web technology is the integration of data from distributed locations over the Web. With wrappers, screen scrapers, and information extraction tools it is possible to access, merge, and reason over RDF data from various different, heterogeneous sources. SPARQL can be used to access RDF data in a declarative manner and as will be shown, it can also be used to virtually integrate distributed RDF graphs. In this contribution a mediator-wrapper based middleware is shown which virtually integrates distributed, heterogeneous data sources based on RDF and a slightly modified SPARQL algebra. Schema information available in RDF Schema and OWL vocabularies is used for query federation and optimization. Compared to traditional data integration systems, SemWIQ can fully exploit the semantics of available RDF data. Additionally, RDF has many interesting properties which provide advanced query capabilities based on OWL DL inference.en
dc.identifier.isbn978-3-88579-228-4
dc.identifier.pissn1617-5468
dc.identifier.urihttps://dl.gi.de/handle/20.500.12116/21274
dc.language.isoen
dc.publisherGesellschaft für Informatik e. V.
dc.relation.ispartofINFORMATIK 2008. Beherrschbare Systeme - dank Informatik. Band 2
dc.relation.ispartofseriesLecture Notes in Informatics (LNI) - Proceedings, Volume P-134
dc.titleSemWIQ – Semantic Web Integrator and Query Engineen
dc.typeText/Conference Paper
gi.citation.endPage722
gi.citation.publisherPlaceBonn
gi.citation.startPage718
gi.conference.date8.-13. September 2008
gi.conference.locationMünchen
gi.conference.sessiontitleRegular Research Papers

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