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Interoperability support between OWL 2.0 and XML environments

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This presentation is a short abstract from my diploma thesis in order to communicate in brief the motivation of my thesis as well as the main points of the vision for a unified web that stands between …

This presentation is a short abstract from my diploma thesis in order to communicate in brief the motivation of my thesis as well as the main points of the vision for a unified web that stands between the closed world assumption and the open world assumption environments.

For more details please visit the online profiles of the projects stated within this presentation:

XS2OWL
http://www.music.tuc.gr/projects/sw/xs2owl/

SPARQL2XQuery
http://www.music.tuc.gr/projects/sw/sparql2xquery/

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Transcript

  • 1. Interoperability support between OWL 2.0 and XML environments
    Ioannis N. Stavrakantonakis
    MUSIC Lab.
    Technical University Of Crete, GreeceChania 2011
  • 2. Outline
    2
  • 7. 3
    XML environment
    Semantic Web
    Thesis
    Closed World Assumption (CWA)
    Open World Assumption (OWA)
    World Wide Web
  • 16. 4
    • Semantic Web and XML environments are based on different data models.
    Solutions:
    • Existing XML data will be transformed to RDF data.
    • 17. Retrieval of data from legacy data sources like XML repositories via the Semantic Web query language.
    • 18. Existing frameworks:
    • 19. XS2OWL supports the transformation of XML Schema into OWL syntax
    • 20. SPARQL2XQuery supports the translation of the SPARQL queries to XQuery syntax.
  • 5
    • OWL 2.0 new features:
    • 21. Eliminate the limitations in the representation of the XML Schema constructs in OWL syntax.
    • 22. Their exploitation supports a broad number of new SPARQL query types …
    • 23. … that can be translated into semantically correspondent XQuery syntax.
  • Thesis frameworks
    6
  • 24. Outline
    7
  • 28. 8
    XS2OWL 1.0 Limitations
    • Supports XML Schema 1.0 and OWL 1.0.
    • 29. Does not support the representation of the XML Schema identity constraints and the definition of XML Schema simple types within the ontology.
    XS2OWL 2.0 Contribution
    • Exploits OWL 2.0 semantics and supports XML Schema 1.1 new features.
    • 30. Exploits identity constraints, e.g. XML Schema key-keyref semantics
    • 31. Allows reasoning between referenced classes
    • 32. Equality between instances of complex types and classes
  • 9
    • The XS2OWL 2.0 Framework:
    • 33. Fully automated.
    • 34. Captures the semantics of XML Schema 1.1constructs.
    • 35. Uplifts XML Schema 1.1 to OWL 2.0 syntax.
    • 36. Makes feasible to down lift from the generated ontology to the source XML Schema.
    • 37. Implemented as an extension of the XS2OWL framework with XSLT.
  • Outline
    10
  • 41. 11
    SPARQL2XQuery 1.0 Limitations
    • Does not exploit the identity constraints and references between the individuals of the XML Schema.
    SPARQL2XQuery 2.0 Contribution
    • Exploits the newly represented by XS2OWL 2.0 constructs.
    • 42. Supports the translation of SPARQL queries that refer to individuals that are associated through references.
    • 43. Supports even more types of SPARQL queries.
  • 12
    • The SPARQL2XQuery 2.0 Framework:
    • 44. Fully automated.
    • 45. Works with bothexisting ontologiesand with automatically produced ones.
    • 46. Exploits the newly represented by XS2OWL 2.0 constructs.
    • 47. Exploits the mapping ontology.
    • 48. Translation of even more sophisticated SPARQL queries.
    • 49. Implemented as an extension of the SPARQL2XQuery framework.
  • Outline
    13
  • 53. Remarks
    14
    This presentation is a short abstract from my diploma thesis in order to communicate in brief the motivation of my thesis as well as the main points of the vision for a unified web that stands between the closed world assumption and the open world assumption environments.
    For more details please visit the online profiles of the projects stated within this presentation:
    XS2OWLhttp://www.music.tuc.gr/projects/sw/xs2owl/
    SPARQL2XQueryhttp://www.music.tuc.gr/projects/sw/sparql2xquery/

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