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Querying for Provenance, Trust, Uncertainty and Other Meta Knowledge in RDF

24 Pages Posted: 10 Jul 2018 Publication Status: Accepted

See all articles by Renata Dividino

Renata Dividino

University of Koblenz-Landau - Institute for Web Science and Technologies (WeST)

Sergej Sizov

University of Koblenz-Landau - Information Systems and Semantic Web (ISWeb)

Steffen Staab

University of Koblenz-Landau - Institute for Web Science and Technologies (WeST); University of Southampton - Faculty of Engineering, Science and Mathematics

Bernhard Schueler

University of Koblenz-Landau - Information Systems and Semantic Web (ISWeb)

Abstract

The Semantic Web is based on accessing and reusing RDF data from many different sources, which one may assign different levels of authority and credibility. Existing Semantic Web query languages, like SPARQL, have targeted the retrieval, combination and reuse of facts, but have so far ignored all aspects of meta knowledge, such as origins, authorship, recency or certainty of data.

In this paper, we present an original, generic, formalized and implemented approach for managing many dimensions of meta knowledge, like source, authorship, certainty and others. The approach re-uses existing RDF modeling possibilities in order to represent meta knowledge. Then, it extends SPARQL query processing in such a way that given a SPARQL query for data, one may request meta knowledge without modifying the query proper. Thus, our approach achieves highly flexible  and automatically coordinated querying for data and meta knowledge, while completely separating the two areas of concern.

Keywords: Semantic Web, Meta Knowlegde, SPARQL, RDF

Suggested Citation

Dividino, Renata and Sizov, Sergej and Staab, Steffen and Schueler, Bernhard, Querying for Provenance, Trust, Uncertainty and Other Meta Knowledge in RDF (2009). Available at SSRN: https://ssrn.com/abstract=3199429 or http://dx.doi.org/10.2139/ssrn.3199429

Renata Dividino (Contact Author)

University of Koblenz-Landau - Institute for Web Science and Technologies (WeST) ( email )

Universitaetsstrasse 1, Gebäude B
Campus Koblenz
Koblenz, 56070
Germany

Sergej Sizov

University of Koblenz-Landau - Information Systems and Semantic Web (ISWeb) ( email )

Germany

Steffen Staab

University of Koblenz-Landau - Institute for Web Science and Technologies (WeST) ( email )

Universitaetsstrasse 1, Gebäude B
Campus Koblenz
Koblenz, 56070
Germany

University of Southampton - Faculty of Engineering, Science and Mathematics ( email )

United Kingdom

Bernhard Schueler

University of Koblenz-Landau - Information Systems and Semantic Web (ISWeb)

Germany

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