External Ontologies in the Semantic Web

  • Raphael Volz
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2712)


The Semantic Web aims at easy integration and usage of content by building on a semi-structured data model where data semantics are explicitly specified through ontologies. The use of ontologies in real-world applications such as community portals has shown that a new level of data independence is required for ontology-based applications for example to allow the customization of information towards the needs of other agents. This requires control over the republishing of data and requires transformation of data across source databases. We address this issue and introduce external ontologies which are constituted of source data from several databases and views spanning across databases.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Raphael Volz
    • 1
  1. 1.Institute AIFBUniversity of Karlsruhe (TH)KarlsruheGermany

Personalised recommendations