Our Team
A team of dedicated professionals working to promote open knowledge and open data in Greece.
Our team consists of people passionate about openness, technology, and social change. From developers and researchers to activists and educators, we all share the same mission.
President of the Board of Directors of OKFN Greece
Dr. Charalampos Bratsas is the founder and chairman of the board of the Open Knowledge Foundation Greece. He is an Assistant Professor in the Department of Information and Electronic Engineering at the International Hellenic University. His primary research areas include Intelligent Software Systems, Open Data, the Semantic Web, Knowledge Graphs, Linked Open Data (coordinator of the Greek DBpedia), Data Science, Data Mining, and Big Data Applications with AI algorithms. Dr. Bratsas holds a Bachelor’s degree in Mathematics (1999), a Master’s degree in Medical Informatics, and a Ph.D. in Knowledge Graphs in Medical Informatics (2008). He has been involved as a scientific director in numerous EU-funded research projects. With over 100 publications in scientific journals and conference proceedings, his work spans areas such as the Semantic Web, Big Data, Artificial Intelligence, and Data Analysis.
Developer / Data Analyst
Lazaros Ioannidis was born in Thessaloniki. He studied Computer Science at Aristotle University of Thessaloniki (AUTH), where he also completed his postgraduate studies in Internet Science. His work primarily focuses on the development and design of software solutions. He has participated in and coordinated various research projects in areas such as, e-commerce and tourism, knowledge management in health sciences, natural resource management, and the support and interoperability of public sector services. Additionally, he has taught software development to both students and professionals. Lazaros has also been involved in research projects in collaboration with the Aristotle University of Thessaloniki, the International Hellenic University, and the Open Knowledge Foundation, Greece.
Developer / Data Analyst
Panagiotis-Marios Filippidis holds a Bachelor’s a degree in Computer Science from Aristotle University of Thessaloniki (AUTH) and a Master’s degree in Internet Science from the School of Mathematics at AUTH. He has worked as a researcher on numerous EU-funded projects in fields such as, health, economy, and education, focusing on software development, data analysis, ontologies, and knowledge graphs. His research interests include the Semantic Web, knowledge extraction, and sports data analysis. He is an active member of the Open Knowledge Foundation Greece, contributing to research projects and activities, while also participates in the development and analysis of semantic data.
Mathematician, Data Analyst, Project Manager
Myrto Papageorgiou holds a B.Sc. in Mathematics and an M.Sc. in Web Science from the School of Mathematics at the Aristotle University of Thessaloniki (AUTh). She is currently a Ph.D candidate in the same Department at AUTh, and her thesis focuses on the field of Statistics and Business Research. Myrto is a Scientific Associate at the International Hellenic University (IHU) and the Aristotle University of Thessaloniki (AUTh), as well as a Project Manager at Open Knowledge Foundation Greece. For many years, Myrto has been a member of the Council of the Hellenic Mathematical Society – Central Macedonia Branch, as well as a key member of the organizing committee for the Mathematics Week held by the Branch every year. Myrto is now the branch s executive secretary, while she is involved in data analysis and project management at both Open Knowledge Foundation Greece and the International Helenic University
Developer, Researcher, PhD candidate
George-Christophoros Kazlaris completed his studies at the Department of Computer Science and Electronic Engineering of the International Hellenic University in Thessaloniki. His thesis focused on the development of educational Android applications for primary school students, utilizing augmented reality technology, and led to important scientific publications in this field. He works as a researcher and programmer, with experience in various programming language, such as Java, C# and Kotlin. He actively participates in research projects in collaboration with the Open Knowledge Foundation Greece. At the same time, he is working on a doctoral thesis with a research topic on educational applications for collaborative learning through augmented reality, which reflects his dedication to promoting innovation in this academic field.
Data Scientist, Mathematician
Alexandros Angelidis received his Bachelor s degree from the Department of Mathematics of the Aristotle University of Thessaloniki (AUTH), where he continued his studies by obtaining a Master s degree with a specialization in "Theoretical Informatics and Systems and Control Theory". His Master s thesis focused on the analysis of chaotic time series through network theory and in particular through Visibility Graphs. He is currently a PhD candidate at the International Hellenic University, where he studies the analysis and prediction of complex, nonlinear systems using neural networks. He is also a research associate at the Department of Computer Science and Electronic Engineering of the International Hellenic University. His research interests include Complex Network Theory, Chaos Theory, Time Series Forecasting and Analysis, and Machine Learning.
Data Scientist, Physicist
Efstathios Konstantinos Anastasiadis graduated from the Aristotle University of Thessaloniki with a Bachelor’s degree in Physics and holds a Master’s from the interdisciplinary program ‘Networks and Complexity’. In his Master’s thesis, he applied Network Theory Techniques to Criminal Networks, investigating their modus operandi and vulnerability to both targeted and random attacks. A portion of his thesis was published in a peer-reviewed journal. His additional scientific interests include Machine Learning, Deep Learning, and Network Inference Tasks, using time series data.
Architect, Data Analyst
Elisavet Parisi is a graduate of the Department of Architecture at Aristotle University of Thessaloniki (AUTh) and holds a Master’s degree in Networks and Complexity from the same university. Her thesis focused on the application of the Semantic Web and Network Theory to define and quantify Urban Sustainability. She has worked as an architect on urban design studies of public spaces and buildings. Since May 2024, she has been a PhD candidate at AUTh with her dissertation being “Ontology of Urban Sustainability: An alternative approach to managing complexity and big data”. Additionally, she participates in research projects in collaboration with the Open Knowledge Foundation Greece. Her research interests include the Semantic Web, Network Theory, and the Management of Complex Systems and Big Data, with a focus on Urban Sustainability.
Communication Officer
Kosmas Panagiotidis is a graduate of the Department of Political Science of the School of Economics and Political Science of the Aristotle University of Thessaloniki and a graduate of the two-year postgraduate course of the Department of Journalism and Media with a specialization in "Journalism and New Media". His research on the importance and influence of Internet technologies in the field of Information led him to his thesis entitled "Semantic Web and Journalism" in which he studied one of the most important services of the Internet and its role in the field of journalism. In parallel with his studies, he worked as a journalist in national radio and television news organizations and as a communications manager for civil society organizations. He holds a PhD from the Media Information Technology Applications Laboratory, Department of Journalism and Media, Aristotle University of Thessaloniki, with a focus on the Semantic Web, modern journalistic practices and Open Data.
Researcher, Biomedical Engineerer - Physicist
Eirini Xanthopoulou holds a degree in Physics from the Aristotle University of Thessaloniki (AUTH), with a specialization in Nuclear Physics, and a Master’s degree in Biomedical Engineering from the same institution. Her research focuses on medical representation and radiation physics, and she has conducted studies in nuclear medicine on the production of the radioisotope Astatine-211, as well as on the development of motion detection algorithms in fetal cardiovascular magnetic resonance imaging (MRI). Within the framework of her research, she has established international collaborations, most notably with the Cardiac MR group at Lund University in Sweden. In parallel, with active involvement in international research environments, she serves as a scientific collaborator in CERN programs, undertaking roles in scientific organization and science communication at international workshops and innovation exhibitions, such as the Hadron Therapy Workshop and the International Particle Therapy Masterclasses. Her main interests lie in biomedical technology and medical data analysis, with a strong focus on translating fundamental research into high-precision clinical applications.
Researcher, Computer Science
Marianna Vouraki is a graduand student in the Department of Computer Engineering and Electronic Systems at the International Hellenic University, specializing in Programming, Data, and Artificial Intelligence. She has experience in web application development, UI/UX design, and process automation using Python, as well as in data management and processing. She has actively contributed to open data projects in collaboration with Open Knowledge Foundation Greece, participating in initiatives that promote transparency and reuse of information. She is a founding member of the social cooperative enterprise (Koin.S.Ep.) Soft Minds, where she is involved in the development and support of websites and digital products. In addition, she has teaching experience at a lifelong learning center, where she trained students and professionals in the certified Standard Office User program, while also serving as technical coordinator responsible for troubleshooting and resolving technical issues.
Researcher, Geoinformatics & Web Intelligence
Konstantinos Tsompanidis is a graduate of the Department of Geoinformatics and Surveying Engineering at the International Hellenic University and holds a Master’s Degree in Intelligent Internet Technologies from the same institution. His professional activity focuses on data analysis using Geographic Information Systems (GIS), on large infrastructure projects, as well as on the management and utilization of spatial data, aiming to transform it into reliable and useful information to support decision-making. At the same time, he is engaged in the study and application of deep learning and computer vision methods on spatial and visual data, with an emphasis on linking research with practical applications. He is a PhD candidate in the Department of Computer, Informatics and Electronic Systems Engineering at the International Hellenic University, with research focused on Computer Vision.
Our volunteers are key to our success.
We are always looking for talented and passionate people to join our team. If you believe in open knowledge and want to make a difference, we would love to hear from you.
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