Dipl.-Inf. Lukas Gerlach

Research Associate Knowledge-Based Systems

Hi!

I'm Lukas and I'm a Research Associate / PhD student in the Knowledge-Based Systems group. I mainly research existential rules, the chase algorithm and related topics. During my studies, I specialized in database theory, logics and complexity theory. Also, I have a passion for Lean.

Newest Publications

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Johannes Tantow, Lukas Gerlach, Stephan Mennicke, Markus Krötzsch
Verifying Datalog Reasoning with Lean (Extended Abstract)
KR 2025 - Recently Published Research Track, November 2025
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Lukas Gerlach, Lucas Larroque, Jerzy Marcinkowski, Piotr Ostropolski-Nalewaja
About the Multi-Head Linear Restricted Chase Termination
In Magdalena Ortiz,Renata Wassermann,Torsten Schaub, eds., Proceedings of the 22nd International Conference on Principles of Knowledge Representation and Reasoning (KR 2025), volume 22 of Proceedings of the International Conference on Principles of Knowledge Representation and Reasoning, 346-355, October 2025. IJCAI Organization
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Johannes Tantow, Lukas Gerlach, Stephan Mennicke, Markus Krötzsch
Verifying Datalog Reasoning with Lean
In Yannick Forster, Chantal Keller, eds., 16th International Conference on Interactive Theorem Proving (ITP 2025), volume 352 of Leibniz International Proceedings in Informatics (LIPIcs), 36:1-36:19, September 2025. Schloss Dagstuhl - Leibniz-Zentrum für Informatik
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David Carral, Lukas Gerlach, Lucas Larroque, Michaël Thomazo
Restricted Chase Termination: You Want More than Fairness (Extended Abstract)
DL Workshop 2025, to appear
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David Carral, Lukas Gerlach, Lucas Larroque, Michaël Thomazo
Restricted Chase Termination: You Want More than Fairness
Proceedings of the ACM on Management of Data, 3(2 (PODS)), June 2025
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Lukas Gerlach
Formalizing Possibly Infinite Trees of Finite Degree
Talk at Workshop: Leaning In!, March 2025
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Lukas Gerlach
Chase Termination - Analytical Hierarchy, Disjunctions, Sufficient Conditions
Talk at Description Logics Seminar, April 2025
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Lukas Gerlach, Alex Ivliev, Julián Méndez, Simon Meusel, Raimund Dachselt, Markus Krötzsch
EvonNemo - A Symbiosis of Datalog Tracing and Proof Tree Visualization
The Fifth Workshop on Explainable Logic-Based Knowledge Representation (XLoKR 2024), November 2024
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Lukas Gerlach, David Carral, Markus Hecher
Finite Groundings for ASP with Functions: A Journey through Consistency (Extended Abstract)
In Nina Gierasimczuk, Jesse Heyninck, eds., Proceedings of the 22nd International Workshop on Nonmonotonic Reasoning (NMR 2024), volume 3835 of CEUR Workshop Proceedings, 183-186, November 2024. CEUR-WS.org
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Alex Ivliev, Lukas Gerlach, Simon Meusel, Jakob Steinberg, Markus Krötzsch
Nemo: Your Friendly and Versatile Rule Reasoning Toolkit
In Pierre Marquis,Magdalena Ortiz,Maurice Pagnucco, eds., Proceedings of the 21st International Conference on Principles of Knowledge Representation and Reasoning (KR 2024), 743-754, 2024. IJCAI Organization
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