Scalable and Reliable Semantic Portals (SEAL) in Practice

  • Jens Hartmann
  • York Sure
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2888)


We present a scalable and reliable framework for Semantic Portals which is an extension of our existing SEAL approach. We illustrate the instantiation of our framework by the real-world example of a heterogeneous and distributed infrastructure of Semantic Portals, viz. the portal of our institute AIFB, the portals and the portal. The approach relies on the application of current semantic technologies whereby we still keep practical usability. Generally, we show that our approach can be used to build up Semantic Portals from scratch or to build up on existing portal infrastructures as a layered Semantic Portal on top. We present several modi for integration of multiple portals and show how we address practical issues like scalability and robustness of Semantic Portals.


European Union Resource Description Framework Knowledge Repository Thematic Network Information Society Technology 
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.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. [ALW99]
    Anderson, C.R., Levy, A.Y., Weld, D.S.: Declarative web site management with Tiramisu. In: ACM SIGMOD Workshop on the Web and Databases – WebDB 1999, pp. 19–24 (1999)Google Scholar
  2. [BL99]
    Berners-Lee, T.: Weaving the Web. Harper, New York (1999)Google Scholar
  3. [CFB00]
    Ceri, S., Fraternali, P., Bongio, A.: Web modeling language (WebML): a modeling language for designing web sites. In: WWW9 Conference, Amsterdam, May 2000 (2000)Google Scholar
  4. [Cha03]
    Chakrabarti, S.: Mining the Web: Discovering knowledge from hypertext data. Morgan Kaufmann, San Francisco (2003)Google Scholar
  5. [DEFS99]
    Decker, S., Erdmann, M., Fensel, D., Studer, R.: Ontobroker: Ontology Based Access to Distributed and Semi-Structured Information. In: Meersman, R., et al. (eds.) Database Semantics: Semantic Issues in Multimedia Systems, pp. 351–369. Kluwer Academic Publisher, Dordrecht (1999)Google Scholar
  6. [Erd01]
    Erdmann, M.: Ontologien zur konzeptuellen Modellierung der Semantik von XML. University of Karlsruhe, 10 (2001) Isbn: 3831126356Google Scholar
  7. [Fen01]
    Fensel, D.: Ontologies: Silver bullet for knowledge management and electroniccommerce. Springer, Berlin (2001)Google Scholar
  8. [FFLS00]
    Fernandez, M.F., Florescu, D., Levy, A.Y., Suciu, D.: Declarative specification of web sites with Strudel. VLDB Journal 9(1), 38–55 (2000)CrossRefGoogle Scholar
  9. [Gru95]
    Gruber, T.R.: Towards principles for the design of ontologies used for knowledge sharing. International Journal of Human-Computer Studies 43(5/6), 907–928 (1995)CrossRefGoogle Scholar
  10. [Har03]
    Hartmann, J.: Technical Infrastructure for Semantic Portals. Technical report, University of Karlsruhe, Institute AIFB (2003) (to appear)Google Scholar
  11. [HRGMP00]
    Hirai, J., Raghavan, S., García-Molina, H., Paepcke, A.: WebBase: A repository of web pages. In: Proceedings of the Ninth World-Wide Web Conference (2000)Google Scholar
  12. [HS02]
    Handschuh, S., Staab, S.: Authoring and annotation of web pages in CREAM. In: The Eleventh International World Wide Web Conference (WWW2002), Honolulu, Hawaii, USA, May 7-11 (2002)Google Scholar
  13. [JDW03]
    Jin, Y., Decker, S., Wiederhold, G.: Ontowebber: Building web sites using semanticw eb technologies. In: Twelfth International World Wide Web Conference in Budapest, HUNGARY (May 2003)Google Scholar
  14. [JXD02]
    Jin, Y., Xu, S., Decker, S.: Ontowebber: A novel approach for managing data on the web. In: Proceedings of the 8th International Conference on Extending Database Technology (EDBT 2002). Prague, Czech Republic (March 2002)Google Scholar
  15. [KLW95]
    Kifer, M., Lausen, G., Wu, J.: Logical foundations of object-oriented and frame-based languages. Journal of the ACM 42, 741–843 (1995)zbMATHCrossRefMathSciNetGoogle Scholar
  16. [LS99]
    Lassila, O., Swick, R.: Resource Description Framework (RDF). Model and syntax specification. Technical report, W3C (1999),
  17. [MMAC99]
    Mecca, G., Merialdo, P., Atzeni, P., Crescenzi, V.: The (short) Araneus guide to web-site development. In: Second Intern. Workshop on the Web and Databases (WebDB 1999) in conjunction with SIGMOD 1999 (May 1999)Google Scholar
  18. [MSS+02]
    Maedche, A., Staab, S., Studer, R., Sure, Y., Volz, R.: Seal – tying up information integration and web site management by ontologies. IEEE Data Engineering Bulletin 25(1), 10–17 (2002)Google Scholar
  19. [MvHe03]
    McGuinness, D.L., van Harmelen, F. (eds.): Owl web ontology language. Technical report, W3C (March 2003)Google Scholar
  20. [RA93]
    Rindflesch, T., Aronson, A.: Semantic processing in information retrieval. In: Safran, C. (ed.) Seventeenth Annual Symposium on Computer Applications in Medical Care (SCAMC 1993), pp. 611–615. McGraw-Hill Inc., New York (1993)Google Scholar
  21. [SAD+00]
    Staab, S., Angele, J., Decker, S., Erdmann, M., Hotho, A., Maedche, A., Schnurr, H.P., Studer, R., Sure, Y.: Semantic community web portals. In: WWW9 / Computer Networks Special Issue: WWW9 – Proceedings of the 9th International World Wide Web Conference, May 15-19, vol. 33, pp. 473–491. Elsevier, Amsterdam (2000)Google Scholar
  22. [SEA+02]
    Sure, Y., Erdmann, M., Angele, J., Staab, S., Studer, R., Wenke, D.: OntoEdit: Collaborative ontology development for the semantic web. In: Horrocks, I., Hendler, J. (eds.) ISWC 2002. LNCS, vol. 2342, pp. 221–235. Springer, Heidelberg (2002)CrossRefGoogle Scholar
  23. [SOV+02]
    Spyns, P., Oberle, D., Volz, R., Zheng, J., Jarrar, M., Sure, Y., Studer, R., Meersman, R.: OntoWeb – A SemanticWeb Community Portal. In: Karagiannis, D., Reimer, U. (eds.) PAKM 2002. LNCS (LNAI), vol. 2569, pp. 189–200. Springer, Heidelberg (2002)CrossRefGoogle Scholar
  24. [SSA02]
    Sure, Y., Staab, S., Angele, J.: OntoEdit: Guiding ontology development by methodology and inferencing. In: Meersman, R., Tari, Z., et al. (eds.) CoopIS 2002, DOA 2002, and ODBASE 2002. LNCS, vol. 2519, pp. 1205–1222. Springer, Heidelberg (2002)CrossRefGoogle Scholar
  25. [SSV+01]
    Studer, R., Sure, Y., Volz, R., Jijuan, Z., Meersman, R.: Seed ontology. OntoWeb deliverable 6.1, Institute AIFB, University of Karlsruhe & StarLAB, Vrije Universiteit Brussels (2001)Google Scholar
  26. [SSV02]
    Studer, R., Sure, Y., Volz, R.: Managing focused access to distributed knowledge. Journal of Universal Computer Science (J.UCS) 8(6), 662–672 (2002)Google Scholar
  27. [W3C99]
    W3C. RDF Schema Specification (1999),
  28. [ZBB+98]
    Zweigenbaum, P., Bouaud, J., Bachimont, B., Charlet, J., Séroussi, B., Boisvieux, J.-F.: From text to knowledge: a unifying document-oriented view of analyzed medical language. Methods of Information in Medicine 37(4-5), 384–393 (1998)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Jens Hartmann
    • 1
  • York Sure
    • 1
  1. 1.Institute AIFBUniversity of KarlsruheKarlsruheGermany

Personalised recommendations