Researcher

Jens Lehmann

Jens Lehmann is a computer scientist whose AI research connects knowledge graphs, machine learning and conversational systems. He helped build DBpedia and developed DL-Learner, then led knowledge-engineering research in Leipzig and conversational AI work at Fraunhofer IAIS. ELLIS elected him a Fellow in 2020, and his LinkedGeoData paper received the Semantic Web Journal's 10 Year Best Paper Award in 2022. He received the 2025 AMiner Most Influential Scholar Award for Knowledge Engineering. As of October 2026, he is a principal scientist in Amazon AGI, where he works on large language models, conversational AI and knowledge graphs.

Timeline

  1. 2006–2010

    A computer science foundation

    He earned a computer-science master's degree at TU Dresden and the University of Bristol in 2006, then completed a summa cum laude doctorate at Leipzig in 2010. In 2007, he and Sören Auer started DBpedia. His 2009 paper introduced DL-Learner, a framework for learning in description logics.

  2. 2010–2015

    A Leipzig research group

    He led a research group at Leipzig from 2010 and headed the Research Center for Agile Knowledge Engineering and Semantic Web (AKSW) from 2013 to 2015.

  3. 2019–2022

    Conversational AI in Dresden

    At Fraunhofer IAIS, he led about 40 researchers. From 2019 to 2022, he led the Dresden branch, where his group focused on conversational AI systems for business.

  4. 2020

    An ELLIS fellowship

    He was elected an ELLIS Fellow in 2020.

  5. 2022

    A move to Amazon

    In May 2022, he left his W3 professorship at Bonn for a new position at Amazon; in June, he joined as an Alexa AI principal scientist. TU Dresden welcomed him as an honorary professor in October 2022.

  6. 2022

    An award for LinkedGeoData

    His LinkedGeoData paper received the Semantic Web Journal's 10 Year Best Paper Award in 2022.

  7. 2025

    Recognized in knowledge engineering

    He received the 2025 AMiner Most Influential Scholar Award for Knowledge Engineering.

  8. As of October 2026

    Amazon AGI research

    As of October 2026, he is a principal scientist in Amazon's AGI organization, where he works on large language models, conversational AI and knowledge graphs.

Sources and credits

Photo: We have no published photo of Jens Lehmann yet. Send us a free-licensed photo.

  1. The Faculty of Computer Science Welcomes Honorary Professor Jens Lehmann tu-dresden.de. Checked 14 October 2026.
  2. About DBpedia dbpedia.org. Checked 14 October 2026.
  3. DL-Learner: Learning Concepts in Description Logics jmlr.org. Checked 14 October 2026.
  4. Associated Research Groups ml2r.de. Checked 14 October 2026.
  5. Profile - Prof. Dr. Jens Lehmann jens-lehmann.org. Checked 14 October 2026.
  6. CEE AI - Neues Zentrum für Künstliche Intelligenz eas.iis.fraunhofer.de. Checked 14 October 2026.
  7. Awards - Prof. Dr. Jens Lehmann jens-lehmann.org. Checked 14 October 2026.
  8. Jens Lehmann - ELLIS ellis.eu. Checked 14 October 2026.
  9. Personalia forsch 2022/02 uni-bonn.de. Checked 14 October 2026.
  10. Jens Lehmann receives Semantic Web journal 10-year award for influential paper amazon.science. Checked 14 October 2026.
  11. Jens Lehmann - Amazon Science amazon.science. Checked 14 October 2026.