Information Systems Group

― Knowledge Representation and Reasoning

Yavor Nenov

Research Assistant


I joined the Knowledge Representation and Reasoning Group at the University of Oxford in October 2011. I obtained my PhD from the University of Manchester in December 2011, where my supervisor was Dr Ian Pratt-Hartmann. My MSc and BSc studies took place at the University of Sofia in Bulgaria under the supervision of Prof Dimitar Vakarelov. My research interests are in the field of Theoretical Computer Science with main focus on Knowledge Representation and Reasoning.



Best thesis award by the University of Manchester


Distinguished paper award at IJCAI 2011


Best student paper award by the University of Manchester


Best student paper award by the University of Manchester

Recent Publications

Roman Kontchakov, Yavor Nenov, Ian Pratt-Hartmann, Michael Zakharyaschev

Topological Logics with Connectedness over Euclidean Spaces

ACM Transaction of Computational Logic 14(2): 13 (2013)

Yujiao Zhou, Yavor Nenov, Bernardo Cuenca Grau, Ian Horrocks

Complete Query Answering over Horn Ontologies Using a Triple Store

International Semantic Web Conference (1) 2013: 720-736


Yavor Nenov


Research Assistant



Contact Information

Wolfson Building, Parks Road, Oxford OX1 3QD


3 papers accepted in IJCAI'17

Three papers co-authored by the KRR group have been accepted in IJCAI'17:
- "Query Reformulation: Theory and Practice" by M. Benedikt, E. V. Kostylev, F. Mogavero, and E. Tsamoura;
- "Foundations of Declarative Data Analysis Using Limit Datalog Programs" by M. Kaminski, B. Cuenca Grau, B. Motik, E. V. Kostylev, and I. Horrocks; and
- "The Bag Semantics of Ontology-Based Data Access" by C. Nikolaou, E. V. Kostylev, G. Konstantinidis, M. Kaminski, B. Cuenca Grau, and I. Horrocks.

Paper accepted in PODS'17

The paper entitled "Benchmarking the chase" authored by Michael Benedikt, George Konstantinidis, Giansalvatore Mecca, Boris Motik, Paolo Papotti, Donatello Santoro, and Efthymia Tsamoura has been accepted in PODS'17.

Andrew Bate defends his PhD Thesis

Andrew Bate has successfully defended his PhD Thesis on Consequence Based Reasoning. Congratulations to Dr. Andrew Bate!

Best applications paper award at ISWC'16

Our paper entitled "Semantic Technologies for Data Analysis in Health Care" received the Best Applications Paper Award at the International Semantic Web Conference (ISWC 2016).

4 papers accepted in ISWC'16

Four papers authored by the KRR group have been accepted in the International Semantic Web Conference (ISWC 2016).

Best paper award at ICDT'16

Mark Kaminski and Egor Kostylev received the best paper award at ICDT 2016 for their paper entitled "Beyond Well-Designed SPARQL".