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Reusing XML Schemas‘ Information as a
Foundation for Designing Domain Ontologies
                    Doctoral Consortium
     International Semantic Web Conference (ISWC 2012)
                                12.11.2012



                            Thomas Bosch

                                M.Sc. (TUM)
                                PhD student
                   http://boschthomas.blogspot.com
              GESIS - Leibniz Institute for the Social Sciences
Motivation
•   Traditionally, ontology engineers work in close collaboration
    with domain experts to design domain ontologies manually,
    which requires lots of time and effort
•   Domain ontologies as well as XML Schemas describe domain
    data models
•   In many cases, XML Schemas are already defined and can be
    re-used




                                                                    2
Main Research Question

 How to sped up the time-consuming process
designing domain ontologies based on already
           available XML Schemas?




                                               3
Proposed Approach




                    4
Evaluation
•       User Study
    •        Compare traditional manual and proposed semi-automatic
             approach
    •        Define and classify typical tasks
    •        Define measurement methods
•       Derive domain ontologies of multiple and differing domains
•       Proof generality of approach
    •        Domain-specific use cases
    •        Generic test cases
         •      Derived from XSD metamodel
         •      Any XSD and XML can be translated




                                                                      5
http://boschthomas.blogspot.com




                                  6
Backup




         7
research questions
• How to sped up the time-consuming process designing
  domain ontologies based on already available XML Schemas
  (RQ1)?
• How to ensure that unexceptionally any XML Schemas can be
  converted to generated ontologies using the same
  transformation rules (RQ2)?
• How to map XML Schema meta-elements to a generic
  ontology (RQ3)?


                                                              8
research questions
• How to map XML Schemas to generated ontologies (RQ4)?
• How to map XML document instances to RDF representations
  of generated ontologies (RQ5)?
• How to expand the information initially accessible in
  generated ontologies with additional domain-specific
  semantic information (RQ6)?




                                                             9
research questions
• How to create domain ontologies (OWL + RDF) as efficient as
  possible (RQ7)?
• Use cases (RQ8)?




                                                                10
Novelty of Approach
•   Based on XSD metamodel
•   Extract vocabulary, terminology, syntactic structure vs.
    semantics
•   Transformation on terminological and assertional
    knowledge level
•   Automatic vs. manual or semi-automatic transformation of
    XSD/XML
•   Semi-automatic derivation of DOs vs. creation of GOs
•   OWL (more expressive power) vs. RDFS GOs
                                                               11

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2012.11 - ISWC 2012 - DC - 1

  • 1. Reusing XML Schemas‘ Information as a Foundation for Designing Domain Ontologies Doctoral Consortium International Semantic Web Conference (ISWC 2012) 12.11.2012 Thomas Bosch M.Sc. (TUM) PhD student http://boschthomas.blogspot.com GESIS - Leibniz Institute for the Social Sciences
  • 2. Motivation • Traditionally, ontology engineers work in close collaboration with domain experts to design domain ontologies manually, which requires lots of time and effort • Domain ontologies as well as XML Schemas describe domain data models • In many cases, XML Schemas are already defined and can be re-used 2
  • 3. Main Research Question How to sped up the time-consuming process designing domain ontologies based on already available XML Schemas? 3
  • 5. Evaluation • User Study • Compare traditional manual and proposed semi-automatic approach • Define and classify typical tasks • Define measurement methods • Derive domain ontologies of multiple and differing domains • Proof generality of approach • Domain-specific use cases • Generic test cases • Derived from XSD metamodel • Any XSD and XML can be translated 5
  • 7. Backup 7
  • 8. research questions • How to sped up the time-consuming process designing domain ontologies based on already available XML Schemas (RQ1)? • How to ensure that unexceptionally any XML Schemas can be converted to generated ontologies using the same transformation rules (RQ2)? • How to map XML Schema meta-elements to a generic ontology (RQ3)? 8
  • 9. research questions • How to map XML Schemas to generated ontologies (RQ4)? • How to map XML document instances to RDF representations of generated ontologies (RQ5)? • How to expand the information initially accessible in generated ontologies with additional domain-specific semantic information (RQ6)? 9
  • 10. research questions • How to create domain ontologies (OWL + RDF) as efficient as possible (RQ7)? • Use cases (RQ8)? 10
  • 11. Novelty of Approach • Based on XSD metamodel • Extract vocabulary, terminology, syntactic structure vs. semantics • Transformation on terminological and assertional knowledge level • Automatic vs. manual or semi-automatic transformation of XSD/XML • Semi-automatic derivation of DOs vs. creation of GOs • OWL (more expressive power) vs. RDFS GOs 11