Dr. Efstratios Kontopoulos

Efstratios Kontopoulos received his PhD in Informatics from the Aristotle University of Thessaloniki in 2011. He also holds a B.Sc. in Mathematics from the Aristotle University of Thessaloniki (2003) and an M.Sc. (Dist) in Computer Studies from the University of Essex, UK (2004).

He has participated in a number of national and international research projects and has published various international journal and conference proceedings papers. Efstratios has also co-supervised over 20 BSc and MSc theses at the Dept. of Informatics, Aristotle University of Thessaloniki and has been since 2004 a research associate and a member of the Intelligent Systems and Knowledge Processing (ISKP) group at the same department.

His research interests are primarily focused on Knowledge Representation and Reasoning, Ontologies and the Semantic Web, Intelligent Agents and Information Visualization.

List of selected publications:

Journal Articles

1. E. Kontopoulos, N. Bassiliades, G. Antoniou, “Visualizing Semantic Web Proofs of Defeasible Logic in the DR-DEVICE System”, Knowledge-based Systems, Elsevier, 24(3), pp. 406-419, 2011
2. E. Kontopoulos, N. Bassiliades, G. Governatori, G. Antoniou, “A Modal Defeasible Reasoner of Deontic Logic for the Semantic Web”, International Journal on Semantic Web and Information Systems, Thomson-Scientific, 7(1), pp. 18-43, 2011
3. E. Kontopoulos, N. Bassiliades, G. Antoniou, A. Seridou, “Visual Modeling of Defeasible Logic Rules with DR-VisMo”, Int. Journal of Artificial Intelligence Tools (IJAIT), pp. 903-924, World Scientific, 17(5), 2008
4. E. Kontopoulos, N. Bassiliades, G. Antoniou, “Deploying Defeasible Logic Rule Bases for the Semantic Web”, Data & Knowledge Engineering, Elsevier, 66 (1), pp. 116-146, 2008
5. E. Kontopoulos, D. Vrakas, F. Kokkoras, N. Bassiliades, I. Vlahavas, “An Ontology-based Planning System for e-Course Generation”, Expert Systems with Applications, Elsevier, 35 (1-2), pp. 398-406, 2008

Conference Proceedings

1. K. Kravari, E. Kontopoulos, N. Bassiliades, “Towards a Knowledge-based Framework for Agents Interacting in the Semantic Web”, 2009 IEEE/WIC/ACM Int. Conference on Intelligent Agent Technology (IAT'09), Vol. 2, pp. 482-485, Milan, Italy, 15-18 September, 2009
2. E. Kontopoulos, N. Bassiliades, G. Antoniou, “Visual Stratification of Defeasible Logic Rule Bases”, 19th IEEE Int. Conference on Tools with Artificial Intelligence (ICTAI), IEEE, pp. 238-245, Patras, Greece, 2007
3. E. Kontopoulos, N. Bassiliades, G. Antoniou, “A Visualization Algorithm for Defeasible Logic Rule Bases over RDF Data”, 1st Int. Conference on Web Reasoning and Rule Systems (RR 2007), Springer, LNCS 4524, pp. 367-369, Innsbruck, Austria, 7-8 June, 2007
4. N. Bassiliades, E. Kontopoulos, G. Antoniou, “A Visual Environment for Developing Defeasible Rule Bases for the Semantic Web”, Int. Conference on Rules and Rule Markup Languages for the Semantic Web (RuleML-2005), A. Adi, S. Stoutenburg, S. Tabet (Eds.), Springer-Verlag, LNCS 3791, pp. 172-186, Galway, Ireland, 10-12 November, 2005