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    Optimisation techniques for flexible querying in SPARQL 1.1

    Frosini, Riccardo (2017) Optimisation techniques for flexible querying in SPARQL 1.1. In: Calì, Andrea and Wood, Peter T. and Martin, Nigel and Poulovassilis, Alexandra (eds.) Data Analytics. Lecture Notes in Computer Science 10365. Springer, pp. 106-110. ISBN 9783319607948.

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    Flexible querying techniques can be used to enhance users’ access to heterogeneous data sets, such as Linked Open Data. An extension of the SPARQL query language with flexible capabilities, called SPARQLAR, was defined in [2], where an evaluation algorithm based on query rewriting was presented. In this paper, we propose two optimisation techniques for evaluating SPARQLAR queries. The first is based on a caching technique, in which we pre-compute some answers in advance. The second exploits a summarisation of the data graph being queried.


    Item Type: Book Section
    Additional Information: 31st British International Conference on Databases, BICOD 2017, London, UK, July 10–12, 2017, Proceedings
    School: Birkbeck Faculties and Schools > Faculty of Science > School of Computing and Mathematical Sciences
    Depositing User: Administrator
    Date Deposited: 17 Aug 2017 13:05
    Last Modified: 09 Aug 2023 12:42


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