Dr. Melisachew Wudage Chekol  RDF Resource Description Framework Icon

Postdoctoral Researcher

mel (at) informatik.uni-mannheim.de

B6, 26, Room C 1.12
Phone: +49 (0) 621 / 181-3786

Office hours: By appointment only.

Research

  • Probabilistic inference
  • Knowledge Representation
  • Semantic Web
  • Probabilistic Description Logics

Selected publications

  1. Andreas Nolle, Melisachew Wudgae Chekol, Christian Meilicke, German Nemirovski, and Heiner Stuckenschmidt. Automated Fine-grained Trust Assessment in Federated Knowledge Bases. Under review, 2017     [PDF]
  2. Melisachew Wudage Chekol, Jakob Huber, Christian Meilicke, Heiner Stuckenschmidt: Markov Logic Networks with Numerical Constraints. ECAI 2016: 1017-1025
  3. Melisachew Wudage Chekol: On the Containment of SPARQL Queries under Entailment Regimes. AAAI 2016: 936-942
  4.  For a complete list, please consult DBLP.

Publications

2018

  • Melisachew Wudage Chekol, Jérôme Euzenat, Pierre Genevès and Nabil Layaida SPARQL query containment under schema. Journal on Data Semantics : JoDS (7#), Springer, Berlin [u.a.], 2018.
  • Melisachew Wudage Chekol and Heiner Stuckenschmidt Towards partition-aware lifted inference. In: The 27th ACM International Conference on Information and Knowledge Management (CIKM '18), October 22--26, 2018, Torino, Italy; 1-4. ACM Digital Library, New York, NY, 2018.
  • Melisachew Wudage Chekol and Heiner Stuckenschmidt Towards probabilistic bitemporal knowledge graphs. In: WWW '18 : Companion Proceedings of the The Web Conference 2018 : Lyon, France, April 23 - 27, 2018; 1757-1762. ACM Digital Library, New York, NY, 2018.
  • Melisachew Wudage Chekol and Heiner Stuckenschmidt Tractable reasoning in probabilistic OWL profiles. In: Proceedings of the 33rd Annual ACM Symposium on Applied Computing 2018; 888-895. ACM Digital Library, New York, NY, 2018.
  • Julien Leblay and Melisachew Wudage Chekol Deriving validity time in knowledge graph. In: WWW '18 : Companion Proceedings of the The Web Conference 2018 : Lyon, France, April 23 - 27, 2018; 1771-1776. ACM Digital Library, New York, NY, 2018.

2017

  • Melisachew Wudage Chekol Scaling probabilistic temporal query evaluation. In: Proceedings of the 2017 ACM on Conference on Information and Knowledge Management, CIKM 2017, Singapore, November 06 - 10, 2017; 697-706. ACM, New York, NY, 2017.
  • Melisachew Wudage Chekol, Giuseppe Pirrò, Jörg Schönfisch and Heiner Stuckenschmidt Marrying uncertainty and time in knowledge graphs. In: Proceedings of the Thirty-First AAAI Conference on Artificial Intelligence and the Twenty-Ninth Innovative Applications of Artificial Intelligence Conference : February 4–9, 2017, San Francisco, California USA; 88-94. AAAI Press, San Francisco, CA, 2017.
  • Melisachew Wudage Chekol, Giuseppe Pirrò, Jörg Schönfisch and Heiner Stuckenschmidt TeCoRe: temporal conflict resolution in knowledge graphs. In: Proceedings of the VLDB EndowmentProceedings of the VLDB Endowment : 43. International Conference on Very Large Data Bases; Iss. 12, 1929-1932. Association of Computing Machinery, New York, NY, 2017.
  • Melisachew Wudage Chekol and Heiner Stuckenschmidt Rule based temporal inference. In: Open access series in informaticsTechnical communications of the 33rd International Conference on Logic Programming : ICLP 2017, August 28-September 1, 2017, Melbourne, Australia; Article 4, 1-14. Dagstuhl Publishing, Wadern, 2017.

2016

  • Melisachew Wudage Chekol On the containment of SPARQL queries under entailment regimes. In: Proceedings of the Thirtieth AAAI Conference on Artificial Intelligence and the Twenty-Eighth Innovative Applications of Artificial Intelligence Conference, February 12-17, 2016, Phoenix, Arizona, USA; 936-942. AAAI Press, Palo Alto, Calif., 2016.
  • Melisachew Wudage Chekol, Jakob Huber, Christian Meilicke and Heiner Stuckenschmidt Markov logic networks with numerical constraints. In: Frontiers in Artificial Intelligence and ApplicationsECAI 2016 : 22nd European Conference on Artificial Intelligence, 29 August-2 September 2016, The Hague, The Netherlands : including Prestigious applications of intelligent systems (PAIS 2016) : proceedings; 1017-1025. IOS Press BV, Amsterdam, 2016.
  • Melisachew Wudage Chekol and Giuseppe Pirrò Containment of expressive SPARQL navigational queries. In: Lecture Notes in Computer ScienceThe Semantic Web – ISWC 2016 : 15th International Semantic Web Conference, Kobe, Japan, October 17–21, 2016, Proceedings, Part I; 86-101. Springer, Cham, 2016.
  • Melisachew Wudage Chekol and Heiner Stuckenschmidt Uncertain temporal knowledge graphs. In: CEUR Workshop ProceedingsURSW 2016 : Proceedings of the 12th International Workshop on Uncertainty Reasoning for the Semantic Web (URSW 2016) co-located with the 15th International Semantic Web Conference (ISWC 2016) Kobe, Japan, October 17, 2016; 1-12. RWTH, Aachen, 2016.
  • Andreas Nolle, Christian Meilicke, Melisachew Wudage Chekol, German Nemirovski and Heiner Stuckenschmidt Schema-based debugging of federated data sources. In: Frontiers in Artificial Intelligence and ApplicationsECAI 2016 : 22nd European Conference on Artificial Intelligence, 29 August-2 September 2016, The Hague, The Netherlands : including Prestigious applications of intelligent systems (PAIS 2016) : proceedings; 381-389. IOS Press BV, Amsterdam, 2016.

2015