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Dr. Theodora Tsikrika

Postdoctoral Research Associate

  • Degree, Department of Computer Science, University of Crete, Greece.
  • MSc in Advanced Methods in Computer Science, Department of Computer Science, Queen Mary, University of London, UK.
  • Ph.D. in Information Retrieval, Department of Computer Science, Queen Mary, University of London, UK.
Theodora Tsikrika joined the Information Technologies Institute (ITI) of the Center for Research and Technology, Hellas (CERTH) in 2013 as a postdoctoral research fellow. She has previously worked as a researcher at CWI, Amsterdam, the Netherlands (2007-2010), the University of Applied Sciences Western Switzerland (HES-SO), Sierre, Switzerland (2011-2012), and the Royal School of Library and Information Science, University of Copenhagen, Denmark (2013), taking part in several European projects. Her research interests focus in the area of Information Retrieval and are directed towards investigating the combination of statistical, search interaction, and semantic evidence for modelling, analysing and evaluating (multimedia) search processes. She has been actively involved in the organisation of international evaluation benchmarks (INEX, ImageCLEF) and serves as a reviewer in several international conferences and journals.

Recent Publications

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  • A. Papoutsis, A. Dimitriadis, I. Koritsas, D. Kavalieros, T. Tsikrika, S. Vrochidis, I. Kompatsiaris, "RuleXploit: A Framework for Generating Suricata Rules from Exploits Using Generative AI.", in Proceedings of the 2025 IEEE International Conference on Cyber Security and Resilience (IEEE CSR 2025), Crete, Greece, 4 - 6 August, 2025.
  • A. Papoutsis, A. Dimitriadis, D. Kavalieros, T. Tsikrika, S. Vrochidis, I. Kompatsiaris, "CTI-GEN: A Framework for Generating STIX 2.1 Compliant CTI Using Generative AI.", in Proceedings of the 2025 IEEE International Conference on Cyber Security and Resilience (IEEE CSR 2025), Crete, Greece, 4 - 6 August, 2025.
  • N. Mylonas, N. Stylianou, T. Tsikrika, S. Vrochidis, I. Kompatsiaris, "A Multi-Task Text Classification Pipeline with Natural Language Explanations for Greek Tweets.", in Proceedings of the 4th International Conference on "Multilingual digital terminology today. Design, representation formats and management systems", Thessaloniki, Greece, 19-20 June, 2025. https://zenodo.org/records/15516840
  • O. Theodosiadou, A. Kosmatopoulos, T. Skouras, C. Gkiourtzidis, T. Tsikrika, S. Vrochidis, I. Kompatsiaris, "Enhancing Change Point Detection Through Key Actor Identification: A study in Cryptocurrency Transactions Networks.", IEEE Access, vol. 13, pp. 84620–84634, 2025, doi: 10.1109/ACCESS.2025.3566624
  • A. Spyros, A. Kougioumtzidou, A. Papoutsis, E. Darra, D. Kavallieros, A. Tziouvaras, T. Tsikrika, S. Vrochidis, I. Kompatsiaris, "A Comprehensive Survey of Manual and Dynamic Approaches for Cybersecurity Taxonomy Generation.", Knowledge and Information Systems, 2025.
Contact
Dr. Theodora Tsikrika
Building A - Office 1.4

Information Technologies Institute
Centre of Research & Technology - Hellas
6th km Harilaou - Thermis, 57001, Thermi - Thessaloniki
Tel.: +30 2311 257793
Fax: +30 2310 474128
Email: theodora.tsikrika@iti.gr
Url: http://www.theodoratsikrika.info