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2015 | OriginalPaper | Chapter

Towards Graphical Query Notation for Semantic Databases

Authors : Kārlis Čerāns, Jūlija Ovčiņņikova, Mārtiņš Zviedris

Published in: Perspectives in Business Informatics Research

Publisher: Springer International Publishing

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Abstract

We describe a notation and a tool for schema-enabled visual/diagrammatic creation of SPARQL queries over RDF databases. The notation and the tool support both the standard basic query pattern comprising a main query class and possibly linked condition classes and means for aggregate query definition and placing conditions over aggregates including also aggregation of aggregate results. We discuss the applicability of the tool for ad-hoc query formulation in practical use cases.

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Footnotes
1
The ontology editor can be downloaded from http://​owlgred.​lumii.​lv/​.​
 
2
The prefix ont: in the examples stands for http://​lumii.​lv/​ontologies/​UnivExample.​owl that is the URI for the mini-University ontology itself.
 
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Metadata
Title
Towards Graphical Query Notation for Semantic Databases
Authors
Kārlis Čerāns
Jūlija Ovčiņņikova
Mārtiņš Zviedris
Copyright Year
2015
Book
Perspectives in Business Informatics Research

Print ISBN: 978-3-319-21914-1

Electronic ISBN: 978-3-319-21915-8

Copyright Year: 2015

DOI
https://doi.org/10.1007/978-3-319-21915-8_19

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