Personal Knowledge Mapping with Semantic Web Technologies

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Slides from the PKM2009 workshop.

Author: Matthias Hert, Gerald Reif, and Harald Gall

University of Zurich, Switzerland

Published in: Education

Personal Knowledge Mapping with Semantic Web Technologies

  1. 1. Personal Knowledge Mapping with Semantic Web Technologies Matthias Hert, Gerald Reif, and Harald Gall University of Zurich, Switzerland University of Zurich Department of Informatics software evolution & architecture lab
  2. 2. Motivation Example location calendar contact
  3. 3. Motivation Example ? Address Book contact calendar Semantic Calendar Clipboard location ? Google Earth ?
  4. 4. How can we achieve this? Problem: incompatible data formats Solution: Semantic Web & Ontologies
  5. 5. Semantic Web “The Semantic Web provides a common framework that allows data to be shared and exchanged across application, enterprise, and community boundaries” Data model: RDF – a directed graph subject object predicate
  6. 6. Ontologies “Ontologies define a shared understanding and vocabulary about an application domain” concepts R A B relations
  7. 7. Problem Multiple ontologies for one domain ing pp Ma ded vCarde ne FOAF NCO SWRC
  8. 8. Our Approach RDF Data Transformation RDFTransformer Language (RDTL) FOAF RDFT vCard
  9. 9. RDF Data Transformation Language (RDTL) RDF Data Transformation Language (RDTL) 1. Simple Mapping 2. Nested Mapping 3. Complex Mapping
  10. 10. RDF Data Transformation Language (RDTL) 1. Simple Mapping - 1-to-1 - datatypes - format - URI/literal 2. Nested Mapping 3. Complex Mapping
  11. 11. RDF Data Transformation Language (RDTL) 1. Simple Mapping 2. Nested Mapping - Create - Extract - Convert 3. Complex Mapping
  12. 12. RDF Data Transformation Language (RDTL) 1. Simple Mapping 2. Nested Mapping 3. Complex Mapping
  13. 13. RDFTransformer RDF data <Target ontology> ! Mappings ! ! RDF Transformer Internet M ! ! Ontologies ! Transformed RDF data
  14. 14. Conclusion ? RDF data <Target ontology> Address Book Google Earth Mappings RDF Transformer Internet M Calendar Ontologies RDFTransformer Web Transformed RDF data Google Earth ? Calendar Address Book http://seal.ifi.uzh.ch/RDFTransformer Questions?

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