Dr.  Harris Papadakis holds a PhD from the Department of Computer Science at the University of Crete. The title of his PhD thesis is "Improving Routing in Unstructured Peer-to-Peer Systems". He received a bachelor's degree in Computer Science from the Computer Science department of the University of Crete and a master's degree from the Computer Engineering department of the University of Patras in 2000 and 2004 respectively. Dr. Harris Papadakis is an Associate Professor at the Department of Electronics and Informatics Engineering of the Hellenic Mediterranean University. He has over 50 publications with over 800 citations. He is the Scientific Head for the Visit Planner: Integrated Information and Tour Planning Service for Cruise Tourism based on the Hybrid Recommender Systems project as well as Coordinator for the IRES: Innovative Data Mining and Recommendation Systems Technologies for Electronic Services and Commerce project. He has also participated in several R&D projects as a researcher. His research interests include recommender systems, distributed systems, Peer-to-peer systems, and community detection.

Prof. Paraskevi Fragopoulou received her B.Sc. in Computer Science from the University of Crete in 1989, and her M.S. and Ph.D. degrees in Computer Science from Queen’s University, Ontario, Canada in 1990 and 1995, respectively. Currently, she is a Professor at the Department of Electrical and Computer Engineering of the Hellenic Mediterranean University.  She is also an Affiliated Researcher at the Institute of Computer Science, Foundation for Research and Technology-Hellas (FORTH-ICS), as a member of the Distributed Computing Systems Laboratory. She performed research in several European Institutions such as the Ecole Normale Superieur de Lyon (ENS-Lyon), and the Danish Computer Center for Research and Education (UNI-C) where she was part of the parallel scientific computing group. Prof. Fragopoulou has co-authored more than 100 conference/journal papers and book chapters. She has served as a reviewer for several conferences/journals and on the program committee of several conferences. Her primary research interests are in the areas of Distributed Computing, Recommender Systems, Internet Technology, Internet Safety, and others. She has participated in several projects funded by the European Commission and by the Greek Government often as the technical coordinator.

Dr. Costas Panagiotakis received his B.Sc., M.Sc., and Ph.D. degrees in Computer Science from the University of Crete in 2001, 2003, and 2007, respectively. Currently, he is an Associate Professor and Head of the Department of Management Science and Technology, at Hellenic Mediterranean University and Director of Data Science, Multimedia and Modelling Laboratory (DataLab). He is also a researcher at the Institute of Computer Science, Foundation for Research and Technology-Hellas. In 1999 he also joined the Multimedia Informatics Laboratory (Supervisor: Prof. G. Tziritas), University of Crete. He has been involved in several R&D projects funded by the EC. He is the author of one book (monograph) and more than 100 articles in international journals and conferences with more than 2000 citations. Dr. Panagiotakis has received several international and national awards and prizes including Cor Baayen Award finalist (2009), First Prize in the "Unsupervised Image Segmentation Contest" of the International Conference on Pattern Recognition (ICPR 2014), and publication of a work on the international challenge of ACM RecSys Challenge 2022 that was the first Distinction from Greece over the last ten years of the RecSys Challenge. His research interests include signal processing, image and video analysis, multimedia, pattern recognition, and recommender systems. More details can be found at:https://sites.google.com/site/costaspanagiotakis/.