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
- "Wikidata through the Eyes of DBpedia"
Ali Ismayilov, Dimitris Kontokostas, Sören Auer, Jens Lehmann, Sebastian Hellmann
Semantic Web Journal, pages 1-11, IOS Press, 2017
- "Increasing the Financial Transparency of European Commission Project Funding"
Michael Martin, Claus Stadler, Philipp Frischmuth, Jens Lehmann
Semantic Web Journal, volume 5, number 2, pages 157-164, IOS Press, 2014
- "Publishing and Interlinking the Global Health Observatory Dataset"
Amrapali J. Zaveri, Jens Lehmann, Sören Auer, Mofeed Hassan, Mohamed Sherif, Michael Martin
Semantic Web Journal, volume 4, number 3, pages 315-322, IOS Press, 2013
- "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
Conference Publications
- "DBpedia FlexiFusion: the Best of Wikipedia > Wikidata > Your Data"
Johannes Pfeffer, Marvin Hofer, Daniel Obraczka, Jens Lehmann, Sebastian Hellmann
In: Proceedings of the 18th International Semantic Web Conference (ISWC), 2019
- "Sustainable Linked Data Generation: The Case of DBpedia"
Wouter Maroy, Anastasia Dimou, Dimitris Kontokostas, Ben De Meester, Jens Lehmann, Erik Mannens, Sebastian Hellmann
In: Proceedings of the 16th International Semantic Web Conference (ISWC), Springer, 2017
- "DBpedia Commons: Structured Multimedia Metadata from the Wikimedia Commons"
Gaurav Vaidya, Dimitris Kontokostas, Magnus Knuth, Jens Lehmann, Sebastian Hellmann
In: Proceedings of the 14th International Semantic Web Conference (ISWC), pages 281-289, Springer, 2015
- "Unsupervised Learning of an Extensive and Usable Taxonomy for DBpedia"
Marco Fossati, Dimitris Kontokostas, Jens Lehmann
In: Proceedings of the 11th International Conference on Semantic Systems, pages 177-184, ACM, 2015
- "User-driven Quality Evaluation of DBpedia"
Amrapali J. Zaveri, Dimitris Kontokostas, Mohamed Sherif, Lorenz Bühmann, Mohamed Morsey, Sören Auer, Jens Lehmann
In: Proceedings of the 9th International Conference on Semantic Systems (I-Semantics), ACM, 2013
- "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
- "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
- "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
- "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
- "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
Workshop Publications
- "Simplified RDB2RDF Mapping"
Claus Stadler, Jörg Unbehauen, Patrick Westphal, Mohamed Sherif, Jens Lehmann
In: Proceedings of the 8th Workshop on Linked Data on the Web (LDOW2015), Florence, Italy, CEUR-WS.org, 2015
- "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
Demos
Presentations
- "The Linked Data Life-Cycle"
Jens Lehmann, Lorenz Bühmann
Invited Lecture Series at the ICCL Summer School 2013, 2013
- "LATC Datasets in the EU Data Cloud"
Jens Lehmann
1st European Data Forum, 2012
- "Managing the Life-Cycle of Large Scale Web Datasets"
Jens Lehmann, Sören Auer, Claus Stadler
Keynote talk at the Joint Workshop on Knowledge Evolution and Ontology Dynamics at ISWC 2012, 2012
- "DEQA - Deep Web Extraction for Question Answering"
Jens Lehmann
11st International Semantic Web Conference, 2012
- "DBpedia Overview"
Jens Lehmann
Leipziger Semantic Web Tag, 2011
- "LinkedGeoData Overview"
Jens Lehmann, Claus Stadler
Leipziger Semantic Web Tag, 2011
- "LinkedGeoData"
Jens Lehmann, Sören Auer
Semantic Web Challenge Entry (reached top 6), 2009
- "LinkedGeoData - Adding a Spatial Dimension to the Web of Data"
Jens Lehmann, Sören Auer
8th International Semantic Web Conference, 2009
Posters
- "LinkedGeoData"
Jens Lehmann
8th International Semantic Web Conference, 2009
- "DBpedia Navigator"
Jens Lehmann, Sebastian Knappe
7th International Semantic Web Conference, 2008