Information Systems Group

― Knowledge Representation and Reasoning

Bernardo Cuenca Grau

Royal Society Fellow


My research interests are in logics for Knowledge Representation. I am especially interested in ontology-based technologies and their applications to the Semantic Web. I have been recently involved in the design of the ontology language OWL 2 and have participated in the development of techniques, algorithms and tools for ontology processing, design, and maintenance.


I was born in Valencia (Spain) in 1978. In 2001 I joined the Ph.D. program in Computer Science at the Universidad de Valencia. In 2002, I obtained an F.P.U doctoral fellowship (Beca para la Formacion del Profesorado Universitario) from the Spanish government, which funded my research. My doctoral fellowship also allowed me to visit the University of Maryland at College Park, where I completed my doctoral work on Knowledge Representation and Semantic Web technologies. In 2005 I defended my dissertation and soon after I joined the Information Management Group at the University of Manchester as a postdoctoral Research Fellow. After two years in Manchester, I joined the Department of Computer Science at the University of Oxford as a Research Officer. I have recently been awarded a Royal Society University Research Fellowship which will fund my research at Oxford for the next 5 years.

Recent Publications

Benchmarking Ontology−based Query Rewriting Systems. Martha Imprialou‚ Giorgos Stoilos and Bernardo Cuenca Grau In Proceedings of the Twenty−Sixth AAAI Conference on Artificial Intelligence (AAAI 2012). AAAI Press. July, 2012.

Completeness Guarantees for Incomplete Ontology Reasones: Theory and Practice. Bernardo Cuenca Grau‚ Boris Motik‚ Giorgos Stoilos and Ian Horrocks. In Journal of Artificial Intelligence Research (JAIR). Vol. 43. Pages 419−476. 2012.

Large scale Interactive Ontology Matching: Algorithms and Implementation Ernesto Jimenez Ruiz‚ Bernardo Cuenca Grau‚ Yujiao Zhou and Ian Horrocks. Accepted in the 20th European Conference on Artificial Intelligence (ECAI 2012).

Ontology Evolution under Semantic Constraints. Bernardo Cuenca Grau, Ernesto Jimenez-Ruiz, Evgeny Kharlamov and Dmitriy Zheleznyakov. In 13th International Conference on Principles of Knowledge Representation and Reasoning. Rome, Italy. June 2012


Bernardo Cuenca Grau


Royal Society Fellow


LogMap, Score!, Optique

Contact Information

Room 305, 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".