Multimedia Knowledge and Social Media Analytics Laboratory

Kontopoulos Efstratios (Stratos)

Efstratios (Stratos) Kontopoulos received his PhD in Informatics from the Aristotle University of Thessaloniki in 2011 for his dissertation on "Management of Defeasible Logic Rule Bases in the Semantic Web”. He also holds a BSc in Mathematics from the Aristotle University of Thessaloniki (2003) and an MSc (Dist) in Informatics 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. Since September 2013 he is working as a postdoctoral research fellow at the Informatics and Telematics Institute (ITI) of the Center for Research and Technology, Hellas (CERTH). His research interests include Semantic Technologies, Knowledge Representation and Reasoning in the Semantic Web and Information Visualization.

Key Publications: 

Stavropoulos, T. G., Meditskos, G., Kontopoulos, E., & Kompatsiaris, I. (2014, August). The DemaWare Service-Oriented AAL Platform for People with Dementia. 3rd Int. Workshop on Artificial Intelligence and Assistive Medicine (AI-AM/NetMed) in conjunction with ECAI 2014, Vol-1213, Prague, Czech Republic (pp. 11-15).

Meditskos, G., Kontopoulos, E., Vrochidis, S., & Kompatsiaris, I. (2016). Ontology-Driven Context Interpretation and Conflict Resolution in Dialogue-Based Home Care Assistance. 9th Int. Conf. on Semantic Web Applications and Tools for Life Sciences - SWAT4LS (to appear).

Kontopoulos, E., Moysiadis, T., Tsagiopoulou, M., Darányi, S., Wittek, P., Papakonstantinou, N., Ntoufa, S., Meditskos, G., Stamatopoulos, K., & Kompatsiaris, I. (2016). Studying the Cohesion Evolution of Genes Related to Chronic Lymphocytic Leukemia Using Semantic Similarity in Gene Ontology and Self-Organizing Maps, 9th Int. Conf. on Semantic Web Applications and Tools for Life Sciences - SWAT4LS (to appear).

Stavropoulos, T. G., Andreadis, S., Kontopoulos, E., Riga, M., Mitzias, P., & Kompatsiaris, I. (2016). SemaDrift: A Protégé Plugin for Measuring Semantic Drift in Ontologies. 1st International Workshop on Detection, Representation and Management of Concept Drift in Linked Open Data (Drift-a-LOD) in conjunction with the 20th International Conference on Knowledge Engineering and Knowledge Management (EKAW) 2016, Bologna, Italy, 19-23 November 2016. (accepted for publication)

N. Lagos, M. Riga, P. Mitzias, J-Y Vion-Dury, E. Kontopoulos, S. Waddington, P. Laurenson, G. Meditskos, I. Kompatsiaris. Dependency modelling for inconsistency management in Digital Preservation – The PERICLES approach. Information Systems Frontiers, Springer, October 2016.

Mitzias, P., Riga, M., Kontopoulos, E., Stavropoulos, T. G., Andreadis, S., Meditskos, G., & Kompatsiaris, I. (2016, September). User-Driven Ontology Population from Linked Data Sources. In International Conference on Knowledge Engineering and the Semantic Web (pp. 31-41). Springer International Publishing.

Stavropoulos, T.G., Andreadis, S., Riga, M., Kontopoulos, E., Mitzias, P., Kompatsiaris, I.: A Framework for Measuring Semantic Drift in Ontologies. In: 1st Int. Workshop on Semantic Change & Evolving Semantics (SuCCESS’16). CEUR Workshop Proceedings, Leipzig, Germany (2016).

Darányi, S., Wittek, P., Konstantinidis, K., Papadopoulos, S., & Kontopoulos, E. (2016). A Physical Metaphor to Study Semantic Drift. 1st International Workshop on Semantic Change & Evolving Semantics (SuCCESS 2016), Leipzig, Germany, CEUR Workshop Proceedings Vol-1695, 2016.

S. Waddington, M. Hedges, M. Riga, P. Mitzias, E. Kontopoulos, I. Kompatsiaris, J-Y Vion-Dury, N. Lagos, S. Darányi, F. Corubolo, C. Muller, J. Mcneill. PERICLES – Digital Preservation through Management of Change in Evolving Ecosystems. In: The Success of European Projects using New Information and Communication Technologies, Chapter 4, pp. 59-82, SCITEPRESS Digital Library, 2016. 

Kontopoulos, E., Riga, M., Mitzias, P., Andreadis, S., Stavropoulos, T. G., Lagos, N, Vion-Dury, J., Meditskos, G., Falcão, P., Laurenson, P. & Kompatsiaris, I. (2016). Ontology-based Representation of Context of Use in Digital Preservation. Proc 1st Workshop on Humanities in the Semantic Web (WHiSe) at the Extended Semantic Web Conference (ESWC2016).

Meditskos, G., Kontopoulos, E. & Kompatsiaris, I. (2015). ReDef: Context-aware Recognition of Interleaved Activities using OWL 2 and Defeasible Reasoning. In K. Kyzirakos, C. A. Henson, M. Perry, D. Varanka, R. Grütter, J.-P. Calbimonte, I. Celino, E. D. Valle, D. Dell'Aglio, M. Krötzsch & S. Schlobach (eds.), SSN-TC/OrdRing @ ISWC (p./pp. 31-42), : 

Mitzias, P., Riga, M., Waddington, S., Kontopoulos, E., Meditskos, G., Laurenson, P., & Kompatsiaris, I. (2015). An Ontology Design Pattern for Digital Video. In Proc. of the 6th Workshop on Ontology and Semantic Web Patterns (WOP 2015) co-located with the 14th Int. Semantic Web Conf.(ISWC 2015) (Vol. 1461).

Vion-Dury, J. Y., Lagos, N., Kontopoulos, E., Riga, M., Mitzias, P., Meditskos, G., Waddington, S., Laurenson, P., Kompatsiaris, I. (2015, September). Designing for Inconsistency - The Dependency-based PERICLES Approach. In East European Conference on Advances in Databases and Information Systems (pp. 458-467). Springer International Publishing.



T. G. Stavropoulos, G. Meditskos, E. Kontopoulos and I. Kompatsiaris, Multi-sensing Monitoring and Knowledge-driven Analysis for Dementia Assessment, International Journal of E-Health and Medical Communications (IJEHMC), 6(4), 77-92, 2015.

Wittek, P., Darányi, S., Kontopoulos, E., Moysiadis, T., & Kompatsiaris, I. (2015, July). Monitoring Term Drift Based on Semantic Consistency in an Evolving Vector Field. In 2015 International Joint Conference on Neural Networks (IJCNN) (pp. 1-8). IEEE.

J. Ye, S. Dasiopoulou, G. Stevenson, G. Meditskos, E. Kontopoulos, I. Kompatsiaris, S. Dobson, Semantic Web technologies in pervasive Computing: A survey and research roadmap, Pervasive and Mobile Computing, Elsevier, Available online 9 January 2015, ISSN 1574-1192, doi:10.1016/j.pmcj.2014.12.009.

Meditskos, G., Kontopoulos, E., & Kompatsiaris, I. (2014, October). Knowledge-driven Activity Recognition and Segmentation Using Context Connections. In International Semantic Web Conference (pp. 260-275). Springer International Publishing.

Kontopoulos, E., Corubolo, F., Eggers, A. G., Ludwig, J., Wieder, P., Hedges, M., Waddington, S., Chanod, J., Vion-Dury, J., Hasan, A., Watry, P., Darányi, S., Pinchuk, R., Laurenson, P., Muller, C., Spyroglou, O., Kompatsiaris, I. (2015). PERICLES EU Integrated Project: Research Strategy and First Results. EU Project Networking Session, 11th Extended Semantic Web Conf. (ESWC'14).

Relevant Projects: