Prof. Dr. Jens Lehmann

Full Professor
Computer Science Institute
U
niversity of Bonn

Lead Scientist & Coordinator of Dresden Branch
NetMedia Department
Fraunhofer IAIS

Member of Institute for Applied Informatics, Dresden / Leipzig

Profiles: LinkedIn, Google Scholar, DBLP, RDF Web-ID

Offices

Room 1.022
Endenicher Allee 19a, 53115 Bonn, Germany
University of Bonn, Computer Science
Tel:+49 228 73-4315

Zwickauer Straße 46
01069 Dresden, Germany
Fraunhofer IAIS

Short CV


Prof. Dr. Jens Lehmann (http://www.jens-lehmann.org) leads the „Smart Data Analytics“ research group at the University of Bonn and Fraunhofer IAIS with approximately 40 researchers and is lead scientist at Fraunhofer IAIS in the Enterprise Information Systems department. His research interests involve Semantic Web, machine learning, question answering & dialogue systems, distributed computing and knowledge representation. Prof. Lehmann authored more than 120 articles in international journals and conferences, 50 of those in A level venues winning 12 best paper awards. His articles are cited more than 20000 times. In several major conferences and journals, he has leading positions. He is founder, leader or contributor of several community research projects, including SANSA, AskNow, DL-Learner, DBpedia and LinkedGeoData. Previously, he completed his PhD with „summa cum laude“ at the University of Leipzig with visits to the University of Oxford.

Research Interests


  • Machine Learning
  • Semantic Web & Knowledge Graphs
  • Conversational AI

Publications


274 entries « 6 of 6 »

2010

Auer, Sören; Lehmann, Jens

Creating knowledge out of interlinked data Journal Article

In: Semantic Web, 1 (1-2), pp. 97–104, 2010.

Links | BibTeX

Lehmann, Jens

Learning OWL Class Expressions Book

IOS Press, 2010, ISBN: 978-1-60750-528-0.

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2009

Kobilarov, Georgi; Bizer, Christian; Auer, Sören; Lehmann, Jens

DBpedia - A Linked Data Hub and Data Source for Web Applications and Enterprises Inproceedings

In: Proceedings of Developers Track of 18th International World Wide Web Conference (WWW 2009), April 20th-24th, Madrid, Spain, 2009.

Abstract | Links | BibTeX

Lehmann, Jens; Haase, Christoph

Ideal Downward Refinement in the EL Description Logic Inproceedings

In: Inductive Logic Programming, 19th International Conference, ILP 2009, Leuven, Belgium, 2009.

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Lehmann, Jens; Haase, Christoph

Ideal Downward Refinement in the EL Description Logic Technical Report

University of Leipzig 2009.

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Hellmann, Sebastian; Stadler, Claus; Lehmann, Jens; Auer, Sören

DBpedia Live Extraction Inproceedings

In: On the Move to Meaningful Internet Systems: OTM 2009, Confederated International Conferences, CoopIS, DOA, IS, and ODBASE 2009, Vilamoura, Portugal, November 1-6, 2009, Proceedings, Part II, pp. 1209–1223, Springer, 2009.

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Heim, Philipp; Hellmann, Sebastian; Lehmann, Jens; Lohmann, Steffen; Stegemann, Timo

RelFinder: Revealing Relationships in RDF Knowledge Bases Inproceedings

In: Semantic Multimedia, 4th International Conference on Semantic and Digital Media Technologies, SAMT 2009, Graz, Austria, December 2-4, 2009, Proceedings, pp. 182–187, Springer, 2009.

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Auer, Sören; Lehmann, Jens; Hellmann, Sebastian

LinkedGeoData: Adding a Spatial Dimension to the Web of Data Inproceedings

In: The Semantic Web - ISWC 2009, 8th International Semantic Web Conference, ISWC 2009, Chantilly, VA, USA, October 25-29, 2009. Proceedings, pp. 731–746, Springer, 2009.

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Auer, Sören; Dietzold, Sebastian; Lehmann, Jens; Hellmann, Sebastian; Aumueller, David

Triplify: light-weight linked data publication from relational databases Inproceedings

In: Proceedings of the 18th International Conference on World Wide Web, WWW 2009, Madrid, Spain, April 20-24, 2009, pp. 621–630, ACM, 2009.

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Hellmann, Sebastian; Lehmann, Jens; Auer, Sören

Learning of OWL Class Descriptions on Very Large Knowledge Bases Journal Article

In: Int. J. Semantic Web Inf. Syst., 5 (2), pp. 25–48, 2009.

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Lehmann, Jens

DL-Learner: Learning Concepts in Description Logics Journal Article

In: J. Mach. Learn. Res., 10 , pp. 2639–2642, 2009.

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Bizer, Christian; Lehmann, Jens; Kobilarov, Georgi; Auer, Sören; Becker, Christian; Cyganiak, Richard; Hellmann, Sebastian

DBpedia - A crystallization point for the Web of Data Journal Article

In: J. Web Semant., 7 (3), pp. 154–165, 2009.

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2008

Lehmann, Jens; Knappe, Sebastian

DBpedia Navigator Inproceedings

In: ISWC Semantic Challenge Proceedings, 2008, (Semantic Web Challenge, International Semantic Web Conference 2008).

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2007

Lehmann, Jens; Hitzler, Pascal

A Refinement Operator Based Learning Algorithm for the ALC Description Logic Inproceedings

In: Inductive Logic Programming, 17th International Conference, ILP 2007, Corvallis, OR, USA, June 19-21, 2007, pp. 147–160, Springer, 2007, (Best Student Paper Award).

Links | BibTeX

Lehmann, Jens; Hitzler, Pascal

A Refinement Operator Based Learning Algorithm for the ALC Description Logic Technical Report

University of Leipzig 2007.

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Riechert, Thomas; Lauenroth, Kim; Lehmann, Jens; Auer, Sören

Towards Semantic based Requirements Engineering Inproceedings

In: Proceedings of the 7th International Conference on Knowledge Management (I-KNOW), 2007.

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Riechert, Thomas; Lauenroth, Kim; Lehmann, Jens

Semantisch unterstütztes Requirements Engineering Inproceedings

In: Proceedings of the SABRE-07 SoftWiki Workshop, 2007.

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Lehmann, Jens; Schüppel, Jörg; Auer, Sören

Discovering Unknown Connections - the DBpedia Relationship Finder Inproceedings

In: The Social Semantic Web 2007, Proceedings of the 1st Conference on Social Semantic Web (CSSW), September 26-28, 2007, Leipzig, Germany, pp. 99–109, GI, 2007.

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Riechert, Thomas; Lauenroth, Kim; Lehmann, Jens

SWORE - SoftWiki Ontology for Requirements Engineering Inproceedings

In: The Social Semantic Web 2007, Proceedings of the 1st Conference on Social Semantic Web (CSSW), September 26-28, 2007, Leipzig, Germany, pp. 111–118, GI, 2007.

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Auer, Sören; Lehmann, Jens

What Have Innsbruck and Leipzig in Common? Extracting Semantics from Wiki Content Inproceedings

In: The Semantic Web: Research and Applications, 4th European Semantic Web Conference, ESWC 2007, Innsbruck, Austria, June 3-7, 2007, Proceedings, pp. 503–517, Springer, 2007.

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Lehmann, Jens; Hitzler, Pascal

Foundations of Refinement Operators for Description Logics Inproceedings

In: Inductive Logic Programming, 17th International Conference, ILP 2007, Corvallis, OR, USA, June 19-21, 2007, Revised Selected Papers, pp. 161–174, Springer, 2007.

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Lehmann, Jens

Hybrid Learning of Ontology Classes Inproceedings

In: Machine Learning and Data Mining in Pattern Recognition, 5th International Conference, MLDM 2007, Leipzig, Germany, July 18-20, 2007, Proceedings, pp. 883–898, Springer, 2007.

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Auer, Sören; Bizer, Christian; Kobilarov, Georgi; Lehmann, Jens; Cyganiak, Richard; Ives, Zachary G.

DBpedia: A Nucleus for a Web of Open Data Inproceedings

In: The Semantic Web, 6th International Semantic Web Conference, 2nd Asian Semantic Web Conference, ISWC 2007 + ASWC 2007, Busan, Korea, November 11-15, 2007, pp. 722–735, Springer, 2007.

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Auer, Sören; Dietzold, Sebastian; Lehmann, Jens; Riechert, Thomas

OntoWiki: A Tool for Social, Semantic Collaboration Inproceedings

In: Proceedings of the Workshop on Social and Collaborative Construction of Structured Knowledge (CKC 2007) at the 16th International World Wide Web Conference (WWW2007) Banff, Canada, May 8, 2007, CEUR-WS.org, 2007.

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274 entries « 6 of 6 »