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Dr. Stefanos Vrochidis

Researcher B’

  • Dipl. Electrical & Computer Engineering
  • MSc in Radio Frequency Communication Systems
  • PhD, Interactive Video Retrieval Using Implicit User Feedback, Queen Mary University of London (2013)

Dr. Stefanos Vrochidis received the Diploma degree in Electrical Engineering from Aristotle University of Thessaloniki, Greece and the MSc degree in Radio Frequency Communication Systems from University of Southampton, in 2000 and 2001 respectively. He also holds a PhD degree on Interactive video retrieval using implicit user feedback, Queen Mary University of London (2013). He is a Senior Researcher (Grade Β’) at the Information Technologies Institute (ΙΤΙ) of the Centre for Research and Technology Hellas (CERTH).

He has participated in a number of EC-funded and National ICT projects (e.g. ELU, PATExpert, REACH, PESCaDO, CHORUS) and his research interests include multimedia analysis, indexing and retrieval, human computer interaction in multimedia retrieval, patent search, environmental and learning applications. His scientific work has been published in peer-reviewed journals, international conferences and book chapters.

Recent Publications

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  • A. Kosmatopoulos, T. Skouras, T. Tsikrika, S. Vrochidis, I. Kompatsiaris, "Efficient Multi-Criteria Important Node Identification via Ego-Network Approximation.", in Proceedings of the 12th International Conference on Social Networks Analysis, Management and Security (SNAMS), Vienna, Austria, November 25-28, 2025.
  • S. Pasios, K. Gkountakos, K. Ioannidis, T. Tsikrika, S. Vrochidis, I. Kompatsiaris, "Photorealistic Synthetic Crowds Simulation in Indoor environments (PSCS-I): a novel synthetic dataset for realistic simulation of crowd panic and violence behaviors.", IEEE Access, pp. 1-1, November 2025, doi: 10.1109/ACCESS.2025.3636727
  • A. Michaloglou, I. Papadimitriou, I. Gialampoukidis, S. Vrochidis, I. Kompatsiaris, "Physics-Informed Neural Networks in Materials Modeling and Design: A Review.", Arch. Computat. Methods Eng., November 19, 2025, doi: 10.1007/s11831-025-10448-9
  • G. Orfanidis, K. Ioannidis, S. Vrochidis, I. Kompatsiaris, "Perimeter security utilizing thermal object detection.", Sensors, vol. 25, no. 21, November 2025. https://doi.org/10.3390/s25216680
  • S. Papadopoulos, E. Patsiouras, K. Ioannidis, S. Vrochidis, I. Kompatsiaris, I. Patras, "Unsupervised Object Localization driven by self-supervised foundation models: A comprehensive review.", Image and Vision Computing, 2025, (accepted for publication).
Contact
Dr. Stefanos Vrochidis
Building A - Office 1.4

Information Technologies Institute
Centre of Research & Technology - Hellas
6th km Harilaou - Thermis, 57001, Thermi - Thessaloniki
Tel.: +30 2311 257754
Fax: +30 2310 474128
Email: stefanos@iti.gr