Prof. Dr. Jens Lehmann

Presentations and Posters

• Presentations
• Posters

Some presentations and posters have been taken offline. Please contact me if you need them.

Presentations (Selection)

• "Question Answering over Knowledge Graphs"
  Jens Lehmann
  In: Fraunhofer IIS Invited Colloquium Talk, 2018
  
  
  
• "How to build a Question Answering system overnight"
  Andreas Both, Denis Lukovnikov, Gaurav Maheshwari, Ioanna Lytra, Jens Lehmann, Kuldeep Singh, Mohnish Dubey, Priyansh Trivedi
  15th Extended Semantic Web Conference, 2018
  
  • related info pages: Question Answering
  • related weblinks: ESWC 2018
  
  
• "Question Answering for Call-Centers"
  Jens Lehmann
  Talk at Call Center Association Workshop in Munich, 2017
  
  • download: not available
  
  
• "Question Answering over Knowledge Graphs: State of the Art and Future Perspectives"
  Jens Lehmann
  Keynote at the 12th Conference on Flexible Query Answering Systems, 2017
  
  • download: PDF (14.5 MB)
  • related weblinks: FQAS 2017
  
  
• "Wie schlau sind ihre Autos wirklich?"
  Jens Lehmann
  Keynote at Audi, Ingolstadt, 2016
  
  • download: not available
  
  
• "Machine Learning Methods for Analysing and Linking RDF Data"
  Jens Lehmann
  Keynote at the SUM 2014 conference, 2014
  
  • download: not available
  • related info pages: Concept Learning in Description Logics
  • related weblinks: DL-Learner homepage
  
  
• "GeoKnow and LinkedGeoData"
  Jens Lehmann
  Keynote at PILOD 2.0 congress in Hilversum, 2014
  
  • download: not available
  • related info pages: Spatial Data in the Semantic Web
  • related weblinks: GeoKnow homepage
  
  
• "GeoKnow Project Overview"
  Jens Lehmann
  Talk at the Linked Data Europe Workshop in Athens, Greece, 2014
  
  • download: not available
  • related info pages: Spatial Data in the Semantic Web
  • related weblinks: GeoKnow homepage
  
  
• "The GeoKnow Project"
  Jens Lehmann
  Invited Talk at the Joint Research Centre (Ispra), 2014
  
  • download: not available
  • related info pages: Spatial Data in the Semantic Web
  • related weblinks: GeoKnow homepage
  
  
• "Towards Transfer Learning of Link Specifications"
  Jens Lehmann, Axel-Cyrille Ngonga Ngomo, Mofeed Hassan
  7th IEEE International Conference on Semantic Computing, 2013
  
  • download: not available
  • related weblinks: ICSC 2013
  
  
• "Can we create better links by playing games?"
  Jens Lehmann, Quan Nguyen
  7th IEEE International Conference on Semantic Computing, 2013
  
  • download: not available
  • related weblinks: LATC, ICSC 2013
  
  
• "LinkedGeoData and GeoKnow"
  Jens Lehmann, Claus Stadler
  Invited talk at the Information Sciences Institute, University of Southern California, 2013
  
  • download: not available
  • related info pages: Spatial Data in the Semantic Web
  • related weblinks: LinkedGeoData homepage
  
  
• "The Linked Data Life-Cycle"
  Jens Lehmann, Lorenz Bühmann
  Invited Lecture Series at the ICCL Summer School 2013, 2013
  
  • download: not available
  • related info pages: Concept Learning in Description Logics, RDF Extraction, Ontology Maintenance
  • related weblinks: LOD2, GeoKnow homepage
  
  
• "AKSW Research Projects Overview"
  Jens Lehmann
  Talk at the University of Montpellier (France), 2013
  
  • download: not available
  
  
• "LATC Datasets in the EU Data Cloud"
  Jens Lehmann
  1st European Data Forum, 2012
  
  • download: not available
  • related info pages: RDF Extraction
  • related weblinks: LATC, EDF 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
  
  • download: not available
  • related info pages: RDF Extraction, Ontology Maintenance
  • related weblinks: DBpedia Homepage, LinkedGeoData homepage, ISWC 2012
  
  
• "DEQA - Deep Web Extraction for Question Answering"
  Jens Lehmann
  11st International Semantic Web Conference, 2012
  
  • download: not available
  • related info pages: RDF Extraction
  • related weblinks: ISWC 2012
  
  
• "Managing the Life-Cycle of Linked Data with the LOD2 Stack"
  Christian Dirschl, Jens Lehmann
  11st International Semantic Web Conference, 2012
  
  • download: not available
  • related weblinks: LOD2, ISWC 2012
  
  
• "Usage-Centric Benchmarking of RDF Triple Stores"
  Mohamed Morsey, Jens Lehmann, Sören Auer, Axel-Cyrille Ngonga Ngomo
  26th Association for the Advancement of Artificial Intelligence Conference, 2012
  
  • download: not available
  • related weblinks: DBpedia Homepage, AAAI 2012
  
  
• "Ontology Semantics, Repair and Enrichment"
  Jens Lehmann, Lorenz Bühmann
  Lecture at the Indian Summer School on Linked Data (ISSLOD), University of Leipzig, 2011
  
  • download: PDF (3.2 MB)
  • related info pages: Concept Learning in Description Logics, Ontology Maintenance
  • related weblinks: DL-Learner homepage, LOD2
  
  
• "AutoSPARQL - Let Users Query Your Knowledge Base"
  Jens Lehmann, Lorenz Bühmann
  8th Extended Semantic Web Conference, 2011
  
  • download: not available
  • related info pages: Concept Learning in Description Logics
  • related weblinks: DBpedia Homepage, DL-Learner homepage, LOD2, ESWC 2011
  
  
• "The Linked Data Lifecycle"
  Jens Lehmann, Sören Auer
  Presentation at the chair for Prozessleittechnik, TU Dresden, 2011
  
  • download: PDF (6.9 MB)
  • related weblinks: LOD2, LATC
  
  
• "sample lecture OWL syntax"
  Jens Lehmann
  based on semantic-web-grundlagen.de, University of Leipzig, 2011
  
  • download: PDF (425.9 KB)
  
  
• "sample lecture OWL reasoning"
  Jens Lehmann
  based on semantic-web-grundlagen.de, University of Leipzig, 2011
  
  • download: PDF (858.3 KB)
  
  
• "sample lecture rules in the semantic web"
  Jens Lehmann
  based on semantic-web-grundlagen.de, University of Leipzig, 2011
  
  • download: PDF (452.7 KB)
  
  
• "Data Web Tutorial"
  Jens Lehmann
  Leipziger Semantic Web Tag, 2011
  
  • download: PDF (5.8 MB)
  • related weblinks: LOD2
  
  
• "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
  
  
• "Learning OWL Class Expressions"
  Jens Lehmann
  PhD Defense, 2010
  
  • download: PDF (2.8 MB)
  • related info pages: Concept Learning in Description Logics
  • related weblinks: DL-Learner homepage
  
  
• "ORE - Ontology Repair and Enrichment"
  Jens Lehmann, Lorenz Bühmann
  9th International Semantic Web Conference, 2010
  
  • download: not available
  • related info pages: Ontology Maintenance
  • related weblinks: ORE homepage, ISWC 2010
  
  
• "Ontology Learning"
  Jens Lehmann
  Invited Talk at Reasoning Web Summer School 2010 in Dresden, 2010
  
  • download: PDF (4.5 MB)
  • related info pages: Concept Learning in Description Logics
  • related weblinks: DL-Learner 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
  
  
• "Ideal Downward Refinement in the EL Description Logic"
  Jens Lehmann, Christoph Haase
  19th International Conference on Inductive Logic Programming, 2009
  
  • download: PDF (767.9 KB)
  • related info pages: Concept Learning in Description Logics
  • related weblinks: DL-Learner homepage, ILP 2009
  
  
• "Presentation of AKSW Group and OWL Class Expressions Learning"
  Jens Lehmann
  Invited Talk at AIFB Karlsruhe, 2009
  
  • download: ODP (3 MB)
  • related info pages: Concept Learning in Description Logics
  • related weblinks: DL-Learner homepage
  
  
• "Semantic Wikis and the Web of Data"
  Jens Lehmann, Sören Auer
  Keynote talk at 1st KYOTO EU project workshop, 2009
  
  • download: ODP (4.7 MB)
  
  
• "OWL and Description Logics (Introduction, Reasoning, Learning)"
  Jens Lehmann
  OntoWiki EU Project Kickoff, 2008
  
  • download: ODP (283.6 KB)
  
  
• "Hybrid Learning of Ontology Classes"
  Jens Lehmann
  5th International Conference on Machine Learning and Data Mining, 2007
  
  • download: PDF (382.3 KB)
  • related info pages: Concept Learning in Description Logics
  • related weblinks: MLDM 2007
  
  
• "ALC Concept Learning with Refinement Operators"
  Jens Lehmann, Pascal Hitzler
  17th International Conference on Inductive Logic Programming, 2007
  
  • download: PDF (1.2 MB)
  • related info pages: Concept Learning in Description Logics
  • related weblinks: ILP 2007
  
  
• "ALC Concept Learning with Refinement Operators"
  Jens Lehmann
  defense of diploma thesis, 2006
  
  • download: PDF (344.4 KB)
  • related info pages: Concept Learning in Description Logics
  
  
• "Lernen von ALC-Konzepten in Beschreibungslogiken und Ontologien"
  Jens Lehmann
  University of Leipzig, 2006
  
  • download: PDF (529.4 KB)
  • related info pages: Concept Learning in Description Logics
  
  
• "Genetic Programming and its use for Concept Learning in Description Logics"
  Jens Lehmann
  TU Dresden, 2006
  
  • download: PDF (494 KB)
  • related info pages: Concept Learning in Description Logics
  
  
• "Extracting Reduced Logic Programs from Artificial Neural Networks"
  Jens Lehmann, Pascal Hitzler, Sebastian Bader
  Ne'Sy05 workshop at IJCAI05, Edinburgh/Scotland, 2005
  
  • download: PS.GZ (704.3 KB)
  • related info pages: ANN Extraction
  • related weblinks: IJCAI 2005
  • final version created and talk given by Pascal Hitzler
  
  
• "Extraktion von Logikprogrammen aus neuronalen Netzen"
  Jens Lehmann
  defense "Großer Beleg", TU Dresden, 2005
  
  • download: PDF (770.9 KB)
  • related info pages: ANN Extraction
  
  
• "Computer Go"
  Jens Lehmann
  TU Dresden, 2004
  
  • download: PDF (830.4 KB)
  • related info pages: Computer Go
  
  
• "Das SMV-System"
  Jens Lehmann
  TU Dresden, 2003
  
  • download: PDF (173.1 KB)
  • related info pages: SMV System and Loyd's Puzzle
  
  

Posters

• "Linked Data Quality Assessment through Network Analysis"
  Christophe Guéret, Paul Groth, Claus Stadler, Jens Lehmann
  10th International Semantic Web Conference, 2011
  
  • download: PDF (1.8 MB)
  • related weblinks: LATC, ISWC 2011
  
  
• "HANNE - A Holistic Application for Navigational Knowledge Engineering"
  Sebastian Hellmann, Jörg Unbehauen, Jens Lehmann
  9th International Semantic Web Conference, 2010
  
  • download: PDF (446.5 KB)
  • related info pages: Concept Learning in Description Logics
  • related weblinks: DL-Learner homepage, ISWC 2010
  
  
• "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
  
  
• "Concept Learning in the ALC Description Logic"
  Jens Lehmann, Pascal Hitzler
  24th International Conference on Machine Learning, 2007
  
  • download: PDF (219.2 KB)
  • related info pages: Concept Learning in Description Logics
  • related weblinks: ICML 2007
  
  

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