Markus Krötzsch

From International Center for Computational Logic

Prof. Dr. Markus Krötzsch

ProfessorTechnische Universität DresdenInternational Center for Computational Logic Knowledge-Based Systems

I am professor for Knowledge-Based Systems at the Institute for Theoretical Computer Science of the Faculty of Computer Science at TU Dresden. The professorship is also part of the cfaed Cluster of Excellence. My scientific interests are, broadly speaking, in the area of intelligent knowledge management systems. I have made contributions to lightweight and rule-based ontology languages, query answering, reasoning complexity, and content management and integration platforms for the Web of Data. This has led to many publications, but also to introductory texts (including two textbooks) and other teaching materials. I also co-edited the W3C Web Ontology Language standard OWL 2.

My most important applied work at the moment is Wikidata. Other projects I have contributed to include the semantic content management system Semantic MediaWiki and the highly efficient ELK ontology reasoner. Behind each of these projects are a number of truly outstanding people with whom I have had (and still have) the pleasure to work.

Newest Publications

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David Carral, Irina Dragoste, Markus Krötzsch
The Combined Approach to Query Answering in Horn-ALCHOIQ
Technical Report, TU Dresden, 2018
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Markus Krötzsch
Getting the most out of Wikidata
Invited presentation at Wiki Workshop 2018, 2018
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Adrian Bielefeldt, Julius Gonsior, Markus Krötzsch
Practical Linked Data Access via SPARQL: The Case of Wikidata
Proceedings of the WWW2018 Workshop on Linked Data on the Web (LDOW-18), CEUR Workshop Proceedings, to appear.
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Jacopo Urbani, Markus Krötzsch, Ceriel Jacobs, Irina Dragoste, David Carral
Efficient Model Construction for Horn Logic with VLog
Proceedings of the 8th International Joint Conference on Automated Reasoning (IJCAR 2018), LNAI, to appear. Springer
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David Carral, Markus Krötzsch, Maximilian Marx, Ana Ozaki, Sebastian Rudolph
Preserving Constraints with the Stable Chase
In Benny Kimelfeld and Yael Amsterdamer, eds., Proceedings of the 21st International Conference on Database Theory (ICDT 2018), volume 98 of Leibniz International Proceedings in Informatics (LIPIcs), 12:1--12:19, March 2018. Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik
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Markus Krötzsch
Recent Advances in Reasoning with Existential Rules
Presentation at the 2018 Workshop of the European Master in Computational Logic (EMCL), 2018
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Tomáš Masopust, Markus Krötzsch
Deciding Universality of ptNFAs is PSpace-Complete
In A Min Tjoa, Ladjel Bellatreche, Stefan Biffl, Jan van Leeuwen, Jiri Wiedermann, eds., Proceedings of the 44th International Conference on Current Trends in Theory and Practice of Computer Science (SOFSEM 2018), volume 10706 of LNCS, 413-427, 2018. Spinger
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Maximilian Marx, Markus Krötzsch
SQID: Towards Ontological Reasoning for Wikidata
In Nadeschda Nikitina, Dezhao Song, eds., Proceedings of the ISWC 2017 Posters & Demonstrations Track, CEUR Workshop Proceedings, October 2017.
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David Carral, Irina Dragoste, Markus Krötzsch
Restricted chase (non)termination for existential rules with disjunctions
In Carles Sierra, eds., Proceedings of the 26th International Joint Conference on Artificial Intelligence (IJCAI'17), 922-928, 2017. International Joint Conferences on Artificial Intelligence
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Markus Krötzsch, Tomáš Masopust, Michaël Thomazo
Complexity of Universality and Related Problems for Partially Ordered NFAs
Information and Computation, 255(1):177-192, August 2017
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Completed Theses




Data Integration and Access by Merging Ontologies and Databases

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Highly Adaptive Energy-Efficient Computing (Collaborative Research Centre SFB 912)

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High-Capacity Knowledge Processing Pipeline (HAEC Project B08)

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Semantic MediaWiki
Popular open-source software for collaborative data management


Wikipedia's free, collaborative knowledge base