Abstract
In order to make SPARQL queries more accessible to users, we have developed the visual query language QueryVOWL. It defines SPARQL mappings for graphical elements of the ontology visualization VOWL. In this demo, we present a web-based prototype that supports the creation, modification, and evaluation of QueryVOWL graphs. Based on the selected SPARQL endpoint, it provides suggestions for extending the query, and retrieves IRIs and literals according to the selections in the QueryVOWL graph. In contrast to related work, SPARQL queries can be created entirely with visual elements.
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CITATION STYLE
Haag, F., Lohmann, S., Siek, S., & Ertl, T. (2015). QueryVOWL: Visual composition of SPARQL queries. In Lecture Notes in Computer Science (Vol. 9341, pp. 62–66). Springer Verlag. https://doi.org/10.1007/978-3-319-25639-9_12
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