Artificial Intelligence Group (Prof. Stuckenschmidt)

Our group conducts fundamental and applied research in knowledge representation formalisms with a focus on reasoning techniques for information extraction and integration. Our work is centered around:

  • Standard reasoning including description logic reasoning and non-standard reasoning techniques (explanations and debugging techniques)
  • Combining Probabilistic reasoning and Utility Theory with Description Logics
  • Applications in various domains (web data integration and management, semantic web, ontology matching, context-aware applications, Business Process Management etc.)  



Postdoctoral Researchers


PhD Students

Alumni (only finished PhDs)

  • Dr. Elena Beisswanger (2013): "Developing Ontological Background Knowledge for Biomedicine".
  • Dr. Arnab Dutta (2016): "Automated Knowledge Base Extension Using Open Information".
  • Dr. Rim Helaoui (2016): "On Leveraging Statistical and Relational Information for the Representation and Recognition of Complex Human Activities".
  • Prof. Dr. Kai Eckert (2012): "Usage-driven maintenance of knowledge organization systems".
  • Dr. Daniel Fleischhacker (2016): "Detecting Errors in Linked Data Using Ontology Learning and
    Outlier Detection".
  • Dr. Christian Meilicke (2011): "Alignment Incoherence in Ontology Matching".
  • Dr. Jan Noessner (2014): "Efficient Maximum A-Posteriori Inference in Markov Logic and Application in Description Logics".
  • Dr. Christoph Pinkel (2016): "Incremental, Interactive,Inter-Model Mapping Generation".
  • Dr. Anne Schlicht (2012): "Scaling Up Description Logic Reasoning by Distributed Resolution".
  • Dr. Caecilia Zirn (2016): "Fine-grained Position Analysis for Political Texts".

Selected Publications

Markov Logic Reasoning:


Activity Recognition:

Ontology Matching:


  • MWK Project: A Virtual Open Science Collaboration Environment
  • ZIM Project: A motio-visual Sensor System for Spare Part Logstics
  • DFG Project: Practical Probabilistic Reasoning in Knowledge Graphs
  • DFG Project: Matching Representations at different Levels of Granularity
  • SFB 884: Political Economy of Reforms
  • Different Industry Projects

Software and Data

  • ALCOMO (a tool for repairing ontology alignments)
  • Rockit (a query engine for Markov Logic)
  • ELOG (a reasoner for log-linear description logics)
  • NELL2DBpedia (an evaluation gold standard for linking NELL entities to DBPedia instances)



  • Jeff Heflin and Heiner Stuckenschmidt Web-scale semantic information processing : editorial. Journal of Web Semantics (10#), Elsevier , Amsterdam [u.a.], 2012.
  • Christian Meilicke, Raul Garcia-Castro, Fred Freitas, Willem Robert van Hage, Elena Montiel-Ponsoda, Ryan Ribeiro de Azevedo, Heiner Stuckenschmidt, Ondrej Svab-Zamazal, Vojtech Svatek, Andrei Tamilin, Cássia Trojahn and Shenghui Wang MultiFarm: A Benchmark for Multilingual Ontology Matching. Web Semantics : Science, Services and Agents on the World Wide Web (15#), Elsevier, Amsterdam [u.a.], 2012.
  • Heiner Stuckenschmidt Data Semantics on the Web. Journal on Data Semantics : JoDS (1#), Springer, Berlin [u.a.], 2012.


Conference Item

  • Daniel Fleischhacker, Johanna Völker and Heiner Stuckenschmidt Mining RDF Data for Property Axioms. In: Lecture notes in computer scienceOn the Move to Meaningful Internet Systems: OTM 2012 : Confederated International Conferences: CoopIS, DOA-SVI, and ODBASE 2012. Proceedings, Part II ; 718-735. Springer, Berlin ; Heidelberg, 2012.
  • Henrik Leopold, Mathias Niepert, Matthias Weidlich, Jan Mendling, Remco Dijkman and Heiner Stuckenschmidt Probabilistic Optimization of Semantic Process Model Matching. In: Lecture notes in computer scienceBusiness Process Management : 10th International Conference, BPM 2012; proceedings; 319-334. Springer, Berlin [u.a.], 2012.
  • Heiner Stuckenschmidt, Jan Noessner and Faraz Fallahi A Study in User-Centric Data Integration (Best Paper Award). In: Proceedings of the 14th International Conference on Enterprise Information Systems; 5-14. SciTePress, Setubal, Portugal , 2012.
  • Heiner Stuckenschmidt and Cäcilia Zirn Multi-dimensional Analysis of Political Documents. In: Lecture notes in computer scienceNatural Language Processing and Information Systems : 17th International Conference on Applications of Natural Language to Information Systems, NLDB 2012, Groningen, The Netherlands, June 26-28, 2012. Proceedings; 11-22. Springer, Berlin [u.a.], 2012.

Workshop Item

  • José Luis Aguirre, Kai Eckert, Jérôme Euzenat, Alfio Ferrara, Willem Robert van Hage, Laura Hollink, Christian Meilicke, Andriy Nikolov, Dominique Ritze, Francois Scharffe, Pavel Shvaiko, Ondrej Svab-Zamazal, Cássia Trojahn, Ernesto Jiménez-Ruiz, Bernardo Cuenca Grau and Z Results of the Ontology Alignment Evaluation Initiative 2012. OM-2012 Ontology Matching : Proceedings of the 7th International Workshop on Ontology Matching (OM-2012) collocated with the 11th International Semantic Web Conference (ISWC-2012) Boston, MA, USA, November 11, 2012, 2012.
  • Rim Helaoui, Daniele Riboni, Mathias Niepert, Claudio Bettini and Heiner Stuckenschmidt Towards Activity Recognition Using Probabilistic Description Logics. Activity context representation: techniques and languages : papers from the 2012 AAAI Workshop ; [held Monday, July 23, 2012 in Toronto, Ontario, Canada], 2012.
  • Christian Meilicke, Cássia Trojahn, Ondrej Svab-Zamazal and Dominique Ritze Multilingual ontology matching evaluation - a first report on using multifarm. IWEST 2012 : Proceedings of the Second International Workshop on Evaluation of Semantic Technologies (IWEST 2012), Workshop at the 9th Extended Semantic Web Conference (ESWC2012) Heraklion, Greece, May 28, 2012, 2012.
  • Mathias Niepert, Christian Meilicke and Heiner Stuckenschmidt Towards Distributed MCMC Inference in Probabilistic Knowledge Bases. Joint Workshop on Automatic Knowledge Base Construction and Web-Scale 2012 : (AKBC-WEKEX 2012) ; held at the 2012 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies (NAACL-HLT 2012), 2012.