Jens Lehmann

RDF Extraction

The existence of the Semantic Web does not mean that the majority of information is still kept in unstructured or semi-structured format. Converting this information to RDF is a major goal of Semantic Web research. I started to work in this area when I supervised the thesis of Jörg Schüppel about extracting information from Wikipedia infoboxes together with Sören Auer. A few month later this became the code base for the widely used DBpedia project. Apart from DBpedia, we also perform data conversion in the LinkedGeoData and NLP2RDF projects.

Journal Publications

• "DBpedia - A Crystallization Point for the Web of Data"
  Jens Lehmann, Chris Bizer, Georgi Kobilarov, Sören Auer, Christian Becker, Richard Cyganiak, Sebastian Hellmann
  Journal of Web Semantics, 2009
  
  • download: PDF (1.2 MB)
  • formats: BibTeX, RDF
  • related info pages: RDF Extraction
  • related weblinks: DBpedia Homepage, DBpedia Query Builder, DBpedia Relationship Finder
  • Journal of Web Semantics Award (Most Cited Article 2006-2010)
  
  

Conference Publications

• "DBpedia - A Linked Data Hub and Data Source for Web Applications and Enterprises"
  Georgi Kobilarov, Chris Bizer, Sören Auer, Jens Lehmann
  In: Proceedings of Developers Track of 18th International World Wide Web Conference, 2009
  
  • download: PDF (920.5 KB)
  • formats: BibTeX, RDF
  • related info pages: RDF Extraction
  • related weblinks: DBpedia Homepage
  
  
• "LinkedGeoData - Adding a Spatial Dimension to the Web of Data"
  Sören Auer, Jens Lehmann, Sebastian Hellmann
  In: Proc. of 7th International Semantic Web Conference ISWC, Lecture Notes in Computer Science, volume 5823, pages 731-746, Springer, 2009
  
  • download: PDF (453.9 KB)
  • formats: BibTeX, RDF
  • related info pages: Spatial Data in the Semantic Web, RDF Extraction
  • related weblinks: LinkedGeoData homepage
  
  
• "DBpedia Live Extraction"
  Sebastian Hellmann, Claus Stadler, Jens Lehmann, Sören Auer
  In: Proceedings of the 8th International Conference on Ontologies, DataBases, and Applications of Semantics (ODBASE), Lecture Notes in Computer Science, volume 5871, pages 1209–1223, Springer, 2009
  
  • download: PDF (281.1 KB)
  • formats: BibTeX, RDF
  • related info pages: RDF Extraction
  • related weblinks: DBpedia Homepage
  
  
• "DBpedia: A Nucleus for a Web of Open Data"
  Sören Auer, Chris Bizer, Georgi Kobilarov, Jens Lehmann, Richard Cyganiak, Zachary Ives
  In: Proceedings of the 6th International Semantic Web Conference (ISWC), Lecture Notes in Computer Science, volume 4825, pages 722-735, Springer, 2008
  
  • download: PDF (1.2 MB)
  • formats: BibTeX, RDF
  • related info pages: RDF Extraction
  • related weblinks: DBpedia Homepage
  
  
• "Discovering Unknown Connections - the DBpedia Relationship Finder"
  Jens Lehmann, Jörg Schüppel, Sören Auer
  In: Proceedings of the 1st SABRE Conference on Social Semantic Web (CSSW), 2007
  
  • download: PDF (247.5 KB)
  • formats: BibTeX, RDF
  • related info pages: RDF Extraction
  • related weblinks: DBpedia Homepage, DBpedia Relationship Finder
  
  

Workshop Publications

• "Update Strategies for DBpedia Live"
  Claus Stadler, Michael Martin, Jens Lehmann, Sebastian Hellmann
  In: 6th Workshop on Scripting and Development for the Semantic Web Colocated with ESWC, 2010
  
  • download: PDF (255.6 KB)
  • formats: BibTeX, RDF
  • related info pages: RDF Extraction
  • related weblinks: DBpedia Homepage
  
  

Demos

• "DBpedia Navigator"
  Jens Lehmann, Sebastian Knappe
  2008
  
  • download: PDF (527.2 KB)
  • formats: BibTeX, RDF
  • related info pages: Concept Learning in Description Logics, RDF Extraction
  • related weblinks: DBpedia Homepage, DL-Learner homepage
  
  

Presentations

• "DBpedia Overview"
  Jens Lehmann
  Leipziger Semantic Web Tag, 2011
  
  • download: PDF (813.7 KB)
  • related info pages: RDF Extraction
  • related weblinks: DBpedia Homepage
  
  
• "LinkedGeoData Overview"
  Jens Lehmann, Claus Stadler
  Leipziger Semantic Web Tag, 2011
  
  • download: PDF (264 KB)
  • related info pages: Spatial Data in the Semantic Web, RDF Extraction
  • related weblinks: LinkedGeoData homepage
  
  
• "LinkedGeoData"
  Jens Lehmann, Sören Auer
  Semantic Web Challenge Entry (reached top 6), 2009
  
  • download: ODP (3.6 MB)
  • related info pages: Spatial Data in the Semantic Web, RDF Extraction
  • related weblinks: LinkedGeoData homepage, ISWC 2009
  
  
• "LinkedGeoData - Adding a Spatial Dimension to the Web of Data"
  Jens Lehmann, Sören Auer
  8th International Semantic Web Conference, 2009
  
  • download: ODP (3.2 MB)
  • related info pages: Spatial Data in the Semantic Web, RDF Extraction
  • related weblinks: LinkedGeoData homepage, ISWC 2009
  
  

Posters

• "LinkedGeoData"
  Jens Lehmann
  8th International Semantic Web Conference, 2009
  
  • download: PDF (819.8 KB)
  • related info pages: Spatial Data in the Semantic Web, RDF Extraction
  • related weblinks: LinkedGeoData homepage, ISWC 2009
  
  
• "DBpedia Navigator"
  Jens Lehmann, Sebastian Knappe
  7th International Semantic Web Conference, 2008
  
  • download: PDF (559.8 KB)
  • related info pages: Concept Learning in Description Logics, RDF Extraction
  • related weblinks: DBpedia Homepage, DL-Learner homepage, ISWC 2008