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Managing RDF Metadata for Community Webs

  • Sofia Alexaki
  • Vassilis Christophides1
  • Gregory Karvounarakis
  • Dimitris Plexousakis1
  • Karsten Tolle
  • Bernd Amann
  • Irini Fundulaki
  • Michel Scholl
  • Anne-Marie Vercoustre4
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1921)

Abstract

The need for descriptive information, i.e., metadata, about Web resources has been recognized in several application contexts (e.g., digital libraries, portals). The Resource Description Framework (RDF) aims at facilitating the creation and exchange of metadata, as directed labeled graphs serialized in XML. In particular, the definition of schema vocabularies enables the interpretation of semistructured RDF descriptions using taxonomies of node and edge labels. In this paper, we propose (i) a formal model capturing RDF schema constructs; (ii) a declarative query language featuring generalized path expressions for taxonomies of labels (iii) a metadata management architecture for efficient storage and querying of RDF descriptions and schemas.

Keywords

Digital Library Resource Description Framework Property Type Class Hierarchy Resource Description Framework Data 
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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References

  1. 2.
    S. Abiteboul, P. Buneman, and D. Suciu. Data on the Web: From Relations to Semistructured Data and XML. Morgan Kaufmann, 1999.Google Scholar
  2. 3.
    S. Abiteboul, S. Cluet, V. Christophides, T. Milo, G. Moerkotte, and J. Siméon.Querying Documents in Object Databases. International Journal on Digital Li-braries, 1 (1):5–18, April 1997.Google Scholar
  3. 4.
    S. Abiteboul, D. Quass, J. McHugh, J. Widom, and J. Wiener. The Lorel Query Language for Semistructured Data. International Journal on Digital Libraries,1 (1):68–88, April 1997.Google Scholar
  4. 5.
    B. Amann and I. Fundulaki. Integrating Ontologies and Thesauri to Build RDF Schemas. In ECDL-99: Research and Advanced Technologies for Digital Libraries, pages 234–253, Paris, France, September 1999.Google Scholar
  5. 6.
    B. Amann and M. Scholl. GRAM: A Graph Model and Query Language. In Proceedings of the ECHT'92 European Conference on Hypermedia Technologies,pages 201–211. ACM Press, December 1992.Google Scholar
  6. 7.
    D. Brickley and R.V. Guha. Resource Description Framework (RDF) Schema Specificacation. Technical report, World Wide Web Consortium, 1999. W3C Proposed Recommendation 03 March 1999.Google Scholar
  7. 8.
    P. Buneman, S. B. Davidson, and D. Suciu. Programming Constructs for Unstruc-tured Data. In Proceedings of International Workshop on Database Programming Languages, Gubbio, Italy, 1995.Google Scholar
  8. 9.
    R.G.G. Cattell and D. Barry. The Object Database Standard ODMG 2.0. Morgan Kaufmann, 1997.Google Scholar
  9. 10.
    S. Ceri, S. Comai, E. Damiani, P. Fraternali, S. Paraboschi, and L. Tanca. XML GL: a Graphical Language for Querying and Restructuring XML Documents. In Proceedings of International WWW Conference, Toronto, Canada, 1999.Google Scholar
  10. 11.
    V. Christophides, S. Cluet, and J. Siméon. On Wrapping Query Languages and Efficient XML Integration. In Proceedings of ACM SIGMOD, Dallas, 2000.Google Scholar
  11. 12.
    S. Cluet, C. Delobel, J. Siméon, and K. Smaga. Your Mediators Need Data Con-version! In Proceedings of ACM SIGMOD, pages 177–188, Seattle, 1998.Google Scholar
  12. 13.
    L. Dempsey and R. Heery. DESIRE: Development of a European Service for In-formation on Research and Education, 1997. http://www.ukoln.ac.uk/metadata/-desire/overview/rev_ti.htm.
  13. 14.
    A. Deutsch, M. Fernandez, and D. Suciu. Storing Semistructured Data with STO-RED. In Proceedings of ACM SIGMOD, pages 431–442, Philadelphia, 1999.Google Scholar
  14. 15.
    A. Deutsch, M.F. Fernandez, D. Florescu, A. Levy, and D. Suciu. A Query Langu-age for XML. In Proceedings of the 8th International WWW Conference, Toronto,1999.Google Scholar
  15. 16.
    M. Doerr and Nick Crofts. Electronic Communication on Diverse Data-The Role of an Object-Oriented CIDOC Reference Model. In CIDOC'98 Conference,Melbourne, Australia, October 1998.Google Scholar
  16. 17.
    M.F. Fernandez, D. Florescu, J. Kang, A.Y. Levy, and D. Suciu. System De-monstration-Strudel: A Web-site Management System. In Proceedings of ACM SIGMOD, Tucson, AZ., May 1997. Exhibition Program.Google Scholar
  17. 18.
    G. Karvounarakis, V. Christophides, and D. Plexousakis. Querying Se-mistructured (Meta)data and Schemas on the Web: The case of RDF & RDFS. Technical Report 269, ICS-FORTH, 2000. Available at:http://www.ics.forth.gr/proj/isst/RDF/rdfquerying.pdf.
  18. 19.
    M. Kifer, W. Kim, and Y. Sagiv. Querying object-oriented databases. In Procee-dings of the ACM SIGMOD, pages 393–402, 1992.Google Scholar
  19. 20.
    L.V.S. Lakshmanan, F. Sadri, and I.N. Subramanian. SchemaSQL-a language for interoperability in relational multi-database systems. In Proceedings of Internatio-nal Conference on Very Large Databases (VLDB), pages 239–250, Bombay, India,September 1996.Google Scholar
  20. 21.
    O. Lassila and R. Swick. Resource Description Framework (RDF) Model and Syntax Specification. Technical report, World Wide Web Consortium, 1999. W3C Recommendation 22 February 1999.Google Scholar
  21. 22.
    I.S. Mumick and K.A. Ross. Noodle: A Language for Declarative Querying in an Object-Oriented Database. In Proceedings of International Conference on Deduc-tive and Object-Oriented Databases (DOOD), pages 360–378, December 1993.Google Scholar
  22. 23.
    Y. Papakonstantinou, H. Garcia-Molina, and J. Widom. Object Exchange Across Heterogeneous Information Sources. In Proceedings of IEEE International Confe-rence on Data Engineering (ICDE), pages 251–260, Taipei, Taiwan, March 1995.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • Sofia Alexaki
    • 1
    • 2
  • Vassilis Christophides1
    • 1
  • Gregory Karvounarakis
    • 1
    • 2
  • Dimitris Plexousakis1
    • 1
    • 2
  • Karsten Tolle
    • 3
  • Bernd Amann
    • 4
  • Irini Fundulaki
    • 4
  • Michel Scholl
    • 4
  • Anne-Marie Vercoustre4
    • 4
  1. 1.ICS-FORTHVassilika VoutonHeraklionGreece
  2. 2.Department of Computer ScienceUniversity of CreteHeraklionGreece
  3. 3.Johann Wolfgang Goethe-UniversityFrankfurt/MainGermany
  4. 4.INRIA RocquencourtLe Chesnay CedexFrance

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