In this paper we propose LODeX, a tool that produces a representative summary of a Linked open Data (LOD) source starting from scratch, thus supporting users in exploring and understanding the contents of a dataset. The tool takes in input the URL of a SPARQL endpoint and launches a set of predefined SPARQL queries, from the results of the queries it generates a visual summary of the source. The summary reports statistical and structural information of the LOD dataset and it can be browsed to focus on particular classes or to explore their properties and their use. LODeX was tested on the 137 public SPARQL endpoints contained in Data Hub (formerly CKAN), one of the main Open Data catalogues. The statistical and structural information of the 107 well performed extractions are collected and available in the online version of LODeX (http://dbgroup.unimo.it/lodex).

A Visual Summary for Linked Open Data sources / Benedetti, Fabio; Bergamaschi, Sonia; Po, Laura. - ELETTRONICO. - 1272:(2014), pp. 173-176. (Intervento presentato al convegno ISWC 2014 Posters & Demonstrations Track tenutosi a Riva del Garda, Italy nel October 21, 2014).

A Visual Summary for Linked Open Data sources

BENEDETTI, FABIO;BERGAMASCHI, Sonia;PO, Laura
2014

Abstract

In this paper we propose LODeX, a tool that produces a representative summary of a Linked open Data (LOD) source starting from scratch, thus supporting users in exploring and understanding the contents of a dataset. The tool takes in input the URL of a SPARQL endpoint and launches a set of predefined SPARQL queries, from the results of the queries it generates a visual summary of the source. The summary reports statistical and structural information of the LOD dataset and it can be browsed to focus on particular classes or to explore their properties and their use. LODeX was tested on the 137 public SPARQL endpoints contained in Data Hub (formerly CKAN), one of the main Open Data catalogues. The statistical and structural information of the 107 well performed extractions are collected and available in the online version of LODeX (http://dbgroup.unimo.it/lodex).
2014
ISWC 2014 Posters & Demonstrations Track
Riva del Garda, Italy
October 21, 2014
1272
173
176
Benedetti, Fabio; Bergamaschi, Sonia; Po, Laura
A Visual Summary for Linked Open Data sources / Benedetti, Fabio; Bergamaschi, Sonia; Po, Laura. - ELETTRONICO. - 1272:(2014), pp. 173-176. (Intervento presentato al convegno ISWC 2014 Posters & Demonstrations Track tenutosi a Riva del Garda, Italy nel October 21, 2014).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1048519
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