Representation of theData Documentation Initiative using   Semantic Web Technologies          Workshop on Semantic Statist...
Agenda• Use Cases• Take-aways and Discussion                              2
Publish and Link DDI Data and Metadata Linking Open Data cloud diagram, by Richard Cyganiak and Anja Jentzsch. http://lod-...
Semantic Queries• What kinds of problems can be solved?• Queries on multiple, distributed and merged DDI instances• Formul...
Integration of Other Ontologies• Domain ontologies classes can relate to  similar concepts of external ontologies• Reasone...
DDI Consistency Check• Definition of consistency• OWL reasoning techniques   • Class consistency   • Global consistency• G...
Concept HierarchyVariable            Concept          Concept Concept                 SimilarConceptReference             ...
Concept Hierarchy                  Concept      subConceptOf            hasConceptVariable                                ...
DDI Elements‘ Comparability                  Grade_USA                                    hasCode  subClassOf             ...
References                                 OtherMaterial   type                                 ExternalURL         Citati...
References                           OtherMaterial   type                                                               Dr...
Semantic References                    referencesPublicationReferencing                                                  P...
Agenda• Use Cases• Take-aways and Discussion                              13
http://ddiandsemanticweb.blogspot.com   Concept                                     SPARQL  Hierarchies                   ...
Upcoming SlideShare
Loading in...5
×

Workshop on Semantic Statistics - Representation of the Data Documentation Initiative using Semantic Web Technologies

400

Published on

Workshop presentation: Semantic Statistics for Social, Behavioural, and Economic Sciences: Leveraging the DDI Model for the Web (12.09.2011 - 16.09.2011)

Published in: Technology, Education
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
400
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
12
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Workshop on Semantic Statistics - Representation of the Data Documentation Initiative using Semantic Web Technologies

  1. 1. Representation of theData Documentation Initiative using Semantic Web Technologies Workshop on Semantic Statistics 12.09.2011 – 16.09.2011 Thomas Bosch (research associate, GESIS Leibniz Institute for the Social Sciences)
  2. 2. Agenda• Use Cases• Take-aways and Discussion 2
  3. 3. Publish and Link DDI Data and Metadata Linking Open Data cloud diagram, by Richard Cyganiak and Anja Jentzsch. http://lod-cloud.net/ 3
  4. 4. Semantic Queries• What kinds of problems can be solved?• Queries on multiple, distributed and merged DDI instances• Formulation using DDI domain concepts ?question contains questionScheme ?questionSELECT ?question ?questionWHERE { questionScheme contains ?question. } 4
  5. 5. Integration of Other Ontologies• Domain ontologies classes can relate to similar concepts of external ontologies• Reasoner may use additional semantic information DDI Other Domain Ontologies Ontology (Question) (Question) 5
  6. 6. DDI Consistency Check• Definition of consistency• OWL reasoning techniques • Class consistency • Global consistency• Global consistency of DDI ontology Global consistency of DDI data model 6
  7. 7. Concept HierarchyVariable Concept Concept Concept SimilarConceptReference SimilarConcept Difference Reference text + html (superClassOf) 7
  8. 8. Concept Hierarchy Concept subConceptOf hasConceptVariable 8
  9. 9. DDI Elements‘ Comparability Grade_USA hasCode subClassOf A subClassOfVariable Code subClassOf 1.0 subClassOf hasCode Grade_Germany• Necessary conditions (equality, inequality, similarity, …) 9
  10. 10. References OtherMaterial type ExternalURL Citation Relationship Reference RelatedTo DCElements ... ReferenceTitle Creator URN … … ... 10
  11. 11. References OtherMaterial type Drawbacks: ExternalURL Citation Relationship Reference • type • complex data model RelatedTo DCElements ... • no intuitive semantics Reference • bibliographic citation limitsTitle Creator URN • ensure reusability? … … ... 11
  12. 12. Semantic References referencesPublicationReferencing Publication IDPublication subClassOf X publicationReferencedBy Variable Title Creator Date URL 12
  13. 13. Agenda• Use Cases• Take-aways and Discussion 13
  14. 14. http://ddiandsemanticweb.blogspot.com Concept SPARQL Hierarchies Queries Consistency References LOD Cloud Use Cases Comparability Ontology Integration
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.

×