SPARQL Evaluations and Extensions (kurz: SEE): Subproject XSPARQL, SPARQL Update & Linked Data


Type Research Project

Funding Bodies
  • Vienna Science and Technology Fund

Duration June 1, 2014 - Aug. 31, 2015

http://www.wwtf.at/projects/research_projects/details/index.php?PKEY=2548_DE_O
  • Applied Information Technology AE (Details)
  • Information Business IN (Details)

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  • Bischof, Stefan (Former researcher)
  • Polleres, Axel (Details) Project Head
  • Steyskal, Simon (Details)
 

Abstract (English)

One of the principal achievements of the Semantic Web is to make the information on the meaning of data on the web accessible to machines. This enables the development of tools that support users in finding the relevant data and joining the data from various sources in a meaningful way. To reap the fruits of the Semantic Web, an efficient query mechanism for Semantic Web data and an appropriate way of dealing with the heterogeneity of data on the web are required. The goal of this project is precisely to lay the foundation for an efficient evaluation of queries in the Semantic Web query language SPARQL. To take care of the heterogeneity of data on the web, we will extend our query evaluation techniques to a combined
query language that integrates also features of XQuery - the standard query language for XML data. In order to achieve these goals we will apply and significantly extend well established query optimization techniques from relational databases.

Partners

  • TU Wien - Institute of Information Systems - Austria

Publications

Journal article

2018 Kolaitis, Phokion, Pichler, Reinhard, Sallinger, Emanuel, Savenkov, Vadim. 2018. Limits of Schema Mappings. Theory of Computing Systems, 62, (4), 899-940. open access (Details)

Contribution to conference proceedings

2016 Ahmeti, Aljbin, Calvanese, Diego, Polleres, Axel, Savenkov, Vadim. 2016. Handling Inconsistencies due to Class Disjointness in SPARQL Updates. In LNCS: Proceedings of the 13th European Semantic Web Conference (ESWC2016), Hrsg. Harald Sack, Eva Blomqvist, Mathieu d'Aquin, Chiara Ghidini, Simone Paolo Ponzetto, Christoph Lange¿, 387-404. Heraklion, Greece: Springer. (Details)
2015 Bischof, Stefan, Martin, Christoph, Polleres, Axel, Schneider, Patrik. 2015. Collecting, Integrating, Enriching and Republishing Open City Data as Linked Data. In Proceedings of the 14th International Semantic Web Conference, Hrsg. Marcelo Arenas, Oscar Corcho, Elena Simperl, Markus Strohmaier, Mathieu d'Aquin, Kavitha Srinivas, Paul T. Groth, Michel Dumontier, Jeff Heflin, Krishnaprasad Thirunarayan, Steffen Staab, 57-75. Bethlehem, PA: Springer. (Details)
  Bischof, Stefan, Martin, Christoph, Polleres, Axel, Schneider, Patrik. 2015. Open City Data Pipeline: Collecting, Integrating, and Predicting Open City Data. In Proceedings of the 4th Workshop on Knowledge Discovery and Data Mining Meets Linked Open Data co-located with 12th Extended Semantic Web Conference (ESWC'15), Hrsg. Johanna Völker, Heiko Paulheim, Jens Lehmann and Vojtech Svatek, ---. Portoroz, Slovenia: CEUR Workshop Proceedings. (Details)
  Feinerer, Ingo, Pichler, Reinhard, Sallinger, Emanuel, Savenkov, Vadim. 2015. Using Statistics for Computing Joins with MapReduce. In Using Statistics for Computing Joins with MapReduce, Hrsg. Andrea Cali, Maria-Esther Vidal, S. 69-74. Lima, Peru: CEUR Workshop Proceedings. (Details)

Expertise

  • Databases