QueryVOWL: Visual Composition of SPARQL Queries

  • Florian Haag
  • Steffen Lohmann
  • Stephan Siek
  • Thomas Ertl
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9341)


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.


Visual querying QueryVOWL VOWL SPARQL RDF OWL Visualization Linked data Semantic web 


  1. 1.
    Bizer, C., Lehmann, J., Kobilarov, G., Auer, S., Becker, C., Cyganiak, R., Hellmann, S.: DBpedia–a crystallization point for the web of data. Web Semant. 7(3), 154–165 (2009)CrossRefGoogle Scholar
  2. 2.
    Bostock, M., Ogievetsky, V., Heer, J.: D3 data-driven documents. IEEE Trans. Visual Comput. Graphics 17(12), 2301–2309 (2011)CrossRefGoogle Scholar
  3. 3.
    Groppe, J., Groppe, S., Schleifer, A.: Visual query system for analyzing social semantic web. In: WWW 2011, pp. 217–220. ACM (2011)Google Scholar
  4. 4.
    Haag, F., Lohmann, S., Ertl, T.: SparqlFilterFlow: SPARQL query composition for everyone. In: Presutti, V., Blomqvist, E., Troncy, R., Sack, H., Papadakis, I., Tordai, A. (eds.) ESWC Satellite Events 2014. LNCS, vol. 8798, pp. 362–367. Springer, Heidelberg (2014) Google Scholar
  5. 5.
    Haag, F., Lohmann, S., Siek, S., Ertl, T.: Visual querying of linked data with QueryVOWL. In: HSWI 2015. CEUR-WS (2015) (To appear)Google Scholar
  6. 6.
    Heim, P., Ziegler, J., Lohmann, S.: gFacet: a browser for the web of data. In: IMC-SSW 2008, vol. 417, pp. 49–58. CEUR-WS (2008)Google Scholar
  7. 7.
    Jarrar, M., Dikaiakos, M.D.: MashQL: a query-by-diagram topping SPARQL. In: ONISW 2008, pp. 89–96. ACM (2008)Google Scholar
  8. 8.
    Lohmann, S., Link, V., Marbach, E., Negru, S.: WebVOWL: web-based visualization of ontologies. In: Lambrix, P., Hyvönen, E., Blomqvist, E., Presutti, V., Qi, G., Sattler, U., Ding, Y., Ghidini, C. (eds.) EKWA 2014 Satellite Events. LNCS, vol. 8982, pp. 154–158. Springer, Heidelberg (2015) Google Scholar
  9. 9.
    Lohmann, S., Negru, S., Haag, F., Ertl, T.: VOWL 2: user-oriented visualization of ontologies. In: Janowicz, K., Schlobach, S., Lambrix, P., Hyvönen, E. (eds.) EKAW 2014. LNCS, vol. 8876, pp. 266–281. Springer, Heidelberg (2014) Google Scholar
  10. 10.
    Negru, S., Lohmann, S., Haag, F.: VOWL: visual notation for OWL ontologies (2014). http://purl.org/vowl/
  11. 11.
  12. 12.
    Russell, A., Smart, P., Braines, D., Shadbolt, N.: NITELIGHT: a graphical tool for semantic query construction. In: SWUI 2008, vol. 543. CEUR-WS (2008)Google Scholar

Copyright information

© Springer International Publishing Switzerland 2015

Open Access This chapter is distributed under the terms of the Creative Commons Attribution Noncommercial License, which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.

Authors and Affiliations

  • Florian Haag
    • 1
  • Steffen Lohmann
    • 1
  • Stephan Siek
    • 1
  • Thomas Ertl
    • 1
  1. 1.Institute for Visualization and Interactive SystemsUniversity of StuttgartStuttgartGermany

Personalised recommendations