A Semantic Web Resource Protocol: XPointer and HTTP

  • Kendall Clark
  • Bijan Parsia
  • Bryan Thompson
  • Bradley Bebee
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3298)


Semantic Web resources — that is, knowledge representation formalisms existing in a distributed hypermedia system — require different addressing and processing models and capacities than the typical kinds of World Wide Web resources. We describe an approach to building a Semantic Web resource protocol — a scalable, extensible logical addressing scheme and transport protocol — by using and extending existing specifications and technologies. We introduce XPointer and some infrequently used, but useful features of HTTP/1.1, in order to support addressing and server side processing of resource and subresource operations. We consider applications of the XPointer Framework for use in the Semantic Web, particularly for RDF and OWL resources and subresources. We describe two initial implementations: filtering of RSS resources by date and item range; RDF subresource selection using RDQL. Finally, we describe possible application to the problem of OWL imports.


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  1. 1.
    Beged-Dov, G., Brickley, D., Dornfest, R., Davis, I., Dodds, L., et al.: RDF Site Summary (RSS) 1.0.,
  2. 2.
    Berners-Lee, T., Fielding, R., Masinter, L.: Uniform Resource Identifier (URI): Generic Syntax. IETF Network Working Group Internet Draft,
  3. 3.
    Clark, J., DeRose, S.: XML Path Language (XPath) Version 1.0. W3C Recommendation (November 16, 1999),
  4. 4.
    DeRose, S., Maler, E., Daniel Jr., R.: XPointer xpointer() Scheme. W3CWorking Draft (December 19, 2002),
  5. 5.
    DeRose, S.J., Daniel Jr., R., Maler, E., Marsh, J.: XPointer xmlns() Scheme. W3C Recommendation (March 25, 2003),
  6. 6.
    Ferraiolo, J., Jun, F., Jackson, D.: Scalable Vector Graphics (SVG) 1.1 Specification. W3C Recommendation (January 14, 2003),
  7. 7.
    Freed, N., Borenstein, N.: Multipurpose Internet Mime Extensions (MIME) Part Two: Media Types. IETF Network Working Group RFC (2046),
  8. 8.
    Grosso, P., Maler, E., Marsh, J., Walsh, N.: XPointer elemnet Scheme. W3C Recommendation (March 25, 2003),
  9. 9.
    Grosso, P., Maler, E., Marsh, J., Walsh, N.: XPointer Framework. W3C Recommendation (March 25, 2003),
  10. 10.
    Jacobs, I.: Architecture of the World Wide Web. W3C Working Draft (December 9, 2003),
  11. 11.
    Seaborne, A.: RDQL - A Query Language for RDF. W3C Member Submission (January 9, 2004),
  12. 12.
    Sirin, E., Parsia, B.: Pellet OWL Reasoner,
  13. 13.
    Stickler, P.: The Nokia URI Query Agent Model,

Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • Kendall Clark
    • 1
  • Bijan Parsia
    • 1
  • Bryan Thompson
    • 2
  • Bradley Bebee
    • 2
  1. 1.MIND LabUniversity of MarylandCollege ParkUSA
  2. 2.SAIC, Advanced Systems and ConceptsArlingtonUSA

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