I am a Professor in the Department of Informatics and Telecommunications of the University of Athens and Director of Graduate Studies. I previously held positions at the Dept. of Electrical and Computer Engineering, Technical University of Crete (Assistant and Associate Professor), the Dept. of Informatics, University of Athens (Visiting Researcher), Dept. of Computation, UMIST (Lecturer) and Dept. of Computing, Imperial College, London (Research Associate).
I joined the Dept. of Informatics and Telecommunications in September 2005. I hold a Ph.D. in Computer Science, from the National Technical University of Athens, an M.Sc. in Computer Science, from the University of Toronto, and a diploma (B.Sc.) in Mathematics, from the University of Crete.
I have published more than 200 papers that have been widely cited in the areas of Artificial Intelligence (especially Knowledge Representation and Constraint Satisfaction), Databases, Semantic Web and Linked Data, Knowledge Graphs, and Distributed Systems. My research has been financially supported by the European Commission, the Hellenic Foundation for Research and Innovation, the Greek General Secretariat for Research and Technology and industry sources (Microsoft Research and British Telecommunications plc.).
I am a Fellow of the European Association for Artificial Intelligence (EurAI) and current President of the Hellenic Artificial Intelligence Society.
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