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Transparent Mobile Querying of Online RDF Sources Using Semantic Indexing and Caching

  • William Van Woensel
  • Sven Casteleyn
  • Elien Paret
  • Olga De Troyer
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6997)

Abstract

Due to advancements in mobile technology and connectivity, mobile devices have become fully-fledged web clients. At the same time, more and more Semantic Web data is becoming available, to a point where it becomes usable for various mobile application scenarios. However, most applications are limited to using pre-defined query endpoints in order to access Semantic Web data, which leaves a huge part of the Semantic Web, consisting of online RDF files and semantically annotated websites, inaccessible. In this paper, we present a mobile query service for the efficient and transparent querying of large amounts of small online RDF sources. In order to achieve this, the query service relies on two key components: 1/ a lightweight semantics-based indexing scheme, to identify sources relevant to posed queries, and 2/ a caching mechanism that locally stores frequently-used data.

Keywords

Mobile Device Query Execution Triple Pattern Indexing Phase Mobile Augmented Reality 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • William Van Woensel
    • 1
  • Sven Casteleyn
    • 2
  • Elien Paret
    • 1
  • Olga De Troyer
    • 1
  1. 1.Vrije Universiteit BrusselBrusselBelgium
  2. 2.Universitat Politècnica de ValènciaValenciaSpain

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