Logo

Dr. Despoina Chatzakou -
Publications

Journals

  1. A. Spyros, I. Koritsas, A. Papoutsis, P. Panagiotou, D. Chatzakou, D. Kavallieros, T. Tsikrika, S. Vrochidis, I. Kompatsiaris, "AI-Based Holistic Framework for Cyber Threat Intelligence Management.", IEEE Access, vol. 13, pp. 20820-20846, 2025, doi: 10.1109/ACCESS.2025.3533084
  2. A. Bozas, S. Andreadis, D. Chatzakou, S. Symeonidis, O. Theodosiadou, P. Kyriakidis, A. Kokkalas, E. A. Stathopoulos, S. Diplaris, T. Tsikrika, I. Gialampoukidis, S. Vrochidis, I. Kompatsiaris, "From Research to Applications: What Can We Extract with Social Media Sensing?.", SN Computer Science, vol. 5, no. 5, 2024. https://doi.org/10.1007/s42979-024-02712-9
  3. O. Theodosiadou, D. Chatzakou, T. Tsikrika, S. Vrochidis, I. Kompatsiaris, "Real-time Threat Assessment based on Hidden Markov Models", Risk Analysis 2023, vol. 43, no. 10, pp. 2069-2081, October 2023. https://doi.org/10.1111/risa.14105
  4. O. Theodosiadou, K. Pantelidou, N. Bastas, D. Chatzakou, T. Tsikrika, S. Vrochidis, I. Kompatsiaris, "Change Point Detection in Terrorism-Related Online Content Using Deep Learning Derived Indicators.",Information, vol. 12, 2021.

Conference

  1. N. Avgerinos, P. Mertis, M. Tsagaris, N. Desipris, G. Lyberopoulos, E. Theodoropoulou, K. Filis, J. Sarajlić, M. Pastor, D. Chatzakou, G. Kalpakis, C. Chatzikonstantinou, D. Tsatsou, S. Demertzis, P. Leskovsky, C. Mendes, S. Linehan, J. Mulcahy, I. Karvelas, M. Álvarez Fernández, A. Alegria, "Innovative Digital Forensic and Investigation Tools for Law Enforcement: The EMPOWER & TRACY Approach.", in Proceedings of the 20th International Conference on Artificial Intelligence Applications and Innovations (AIAI 2024), Corfu, Greece, 27-30 June 2024. https://doi.org/10.1007/978-3-031-63227-3_6
  2. A. Kasampalis, D. Chatzakou, T. Tsikrika, S. Vrochidis, I. Kompatsiaris, "Bias Detection and Mitigation in Textual Data: a Study on Fake News and Hate Speech Detection.", in Proceedings of the 46th European Conference on Information Retrieval (ECIR 2024), Part III, Glasgow, UK, March 24-28, 2024, pp. 374-383. https://doi.org/10.1007/978-3-031-56063-7_29
  3. A. Konstantinou, D. Chatzakou, O. Theodosiadou, T. Tsikrika, S. Vrochidis, I. Kompatsiaris, "Trend Detection in Crime-related Time Series with Change Point Detection Methods.", in Proceedings of CLEF 2023: Experimental IR Meets Multilinguality, Multimodality, and Interaction, A. Arampatzis et al., Eds., Lecture Notes in Computer Science, vol. 14163, Thessaloniki, Greece, 18–21 September 2023, Springer. https://doi.org/10.1007/978-3-031-42448-9_7
  4. N. Stylianou, D. Chatzakou, T. Tsikrika, S. Vrochidis, I. Kompatsiaris, "Domain-aligned Data Augmentation for Low-resource and Imbalanced Text Classification.", in Proceedings of the 45th European Conference on Information Retrieval (ECIR'23), Dublin, Ireland, April 02-06, 2023.
  5. K. Pantelidou, D. Chatzakou, T. Tsikrika, S. Vrochidis, I. Kompatsiaris, "Selective Word Substitution for Contextualized Data Augmentation.", in Proceedings of the 27th International Conference on Natural Language & Information Systems (NLDB), Valencia, Spain, 15-17 June 2022, pp.508-516.
  6. P. Kyriakidis, D. Chatzakou, T. Tsikrika, S. Vrochidis, I. Kompatsiaris, "Leveraging Transformer Self Attention Encoder for Crisis Event Detection in Short Texts.", in Proceedings of the 44th European Conference on Information Retrieval (ECIR2022), Stavanger, Norway, April 10–14, 2022, pp. 163-171. https://doi.org/10.1007/978-3-030-99739-7_19
  7. A. Kosmatopoulos, K. Loumponias, D. Chatzakou, T. Tsikrika, S. Vrochidis, I. Kompatsiaris, "Random-Walk Graph Embeddings and the Influence of Edge Weighting Strategies in Community Detection Tasks.",in Proceedings of the 2021 Workshop on Open Challenges in Online Social Networks (OASIS ’21), ACM, New York, NY, USA, Virtual Event, Ireland, August 30, 2021. https://dl.acm.org/doi/abs/10.1145/3472720.3483621
  8. D. Chatzakou, J. Soler-Company, T. Tsikrika, L. Wanner, S. Vrochidis, I. Kompatsiaris, "User Identity Linkage in Social Media Using Linguistic and Social Interaction Features.",In Proceedings of the 2020 ACM on Web Science Conference, July 6-10, 2020. https://doi.org/10.1145/3394231.3397920
  9. A. Koufakis, D. Chatzakou, G. Meditskos, T. Tsikrika, S. Vrochidis, I. Kompatsiaris, "Semantic Web Technologies in Fighting Crime and Terrorism: The CONNEXIONs Approach.",Invited talk in 1st International Workshop on IoT infrastructures for safety in pervasive environments (IoT4SAFE), 2 June, 2020.

Books Chapters

  1. N. Mylonas, N. Stylianou, D. Chatzakou, T. Spathi, S. Alevizos, A. Drandaki, A. Koufakis, G. Kalpakis, T. Tsikrika, S. Vrochidis, "Online Child Grooming Detection: Challenges and Future Directions.", in Paradigms on Technology Development for Security Practitioners, I. Gkotsis, D. Kavallieros, N. Stoianov, S. Vrochidis, D. Diagourtas, B. Akhgar, (eds), Security Informatics and Law Enforcement, Springer, Cham, pp 237–247. https://doi.org/10.1007/978-3-031-62083-6_19