He received his Diploma (B.Eng, M.Eng) in Rural and Surveying Engineering of the Aristoteles University of Thessaloniki (AUTh) in 2011. In 2018, he received his PhD degree from the Electrical and Computer Engineering Department (ECE) of the Democritus University of Thrace (DUTh) in the research domain of 3D mesh processing and information retrieval. Since 2013, he has joined the Institute for language and Speech processing (ILSP) of the Athena Research Center (ARC) as a member of the Multimedia Research Group. As of 2020, Dr. Ioannakis is an assistant researcher at the Institute for Language and Speech Processing of ARC.  His research interests include processing, content-based retrieval and classification of three-dimensional (3D) polygonal meshes, photogrammetry, digital image processing, pattern recognition, machine learning and the construction and programming of UAVs (Unmanned Aerial Systems). 

In 1993 he obtained the M.Sc. with distinction in Communications and Signal Processing from Imperial College of Science Technology and Medicine, University of London, UK. In 1997 he received his Ph.D. degree in Mathematical modelling and Stochastic Control from Imperial College.  Since 1998 he has been working at the ILSP, as head of the Quality Assurance Office (1999-2003), in 2004-2007 he has elected Researcher at ILSP, in 2008-2015 he has promoted to Senior Researcher and in 2015-today he has promoted to Researcher Director.  He has been elected as President of the Scientific Council of ILSP for the period 2009-2018, as member of the Board of Athena RC since 2016-2019 as an elected representative of the Researchers and Vice-President since 2019. He was among the founding members of LibrisTech, the first spin-off company of ILSP, where he acted as managing director until September 2004 and until 2010 he was President of the Board. He is also Member of the Board at the Information Society S.A since June 2019. His research interest involves digital signal processing, statistics analysis, machine learning and artificial intelligence with applications in a wide variety of signals and data (voice, music, image, video, sensorial data, etc.) He has authored a significant number of scientific publications in the above fields in books, scientific journals as well as international conferences. He has supervised doctor thesis and postgraduate thesis as well as teaches in postgraduate programs in his research subjects. He has also participated in the organization international conferences such as ΙCFHR 2014, he has participated in international competitions in handwriting processing technologies (ICDAR & ICFHR Contests), music technology (MIREX) and sensor data analysis (PHM Data Challenge) with among the best submissions and his is also reviewer in scientific journals and international conferences. He has coordinated the quality control of various commercial products and software systems, he has been involved in research and development programs at national and European level, having the role of the coordinator, the scientific manager or a member of scientific teams.  He is member at the IEEE (Institute of Electrical and Electronic Engineers) since 1992, of the Technical Chamber of Greece since 1992. Since 1999 he is a certified market maker/trader of the Derivatives Market at the Athens Exchange and of the ACM (Association for Computing Machinery) since 2005. 

She was a Marie Sklodowska Curie Fellow at the University of Copenhagen (project FIBRANET, 2017-2019). She is the Head of the Applied Research Department at the Directorate of Conservation/Hellenic Ministry of Culture and a collaborator of the Athena Research Center through the project TEXTaiLES. In the COST Action CA19131 EuroWeb, Europe through Textiles (2020-2024), she was the Leader of WG1 Textile Technologies and she is responsible for the instrumental analysis of Mycenaean textiles at the ELIDEK program FAROS, The Fabric of Kings (2023-2025, PI S Spantidaki). She has taught textile conservation at the Technological Educational Institute of Athens (now University of West Attica), the UCL Qatar, and the University of Copenhagen. 

During his master thesis he studied selfish routing games while his academic interests are pattern emergence and evolutionary game theory. During his studies he also started working as a Backend Web Developer for which he has over 10 years of experience in the field.  Lately, he’s been working at the Athena Research Center as a Researcher Associate where he tackles problems around Computational Geometry, software analysis and ML algorithm optimisation.  

His research interests focus on robotics, 3D modeling and design, and computer graphics. His thesis involves the design of an autonomous platform for 3D object digitization and the implementation of autonomous 3D reconstruction algorithms on real robotic platforms. He is currently a research intern at the Athena Research Center , where he specializes in robotics applications and 3D object reconstruction.

Since 1994, she has participated in the Karabournaki excavation (Thermaic Gulf) and has co-directed it since 2014. She has led and contributed to interdisciplinary projects involving digital documentation, metadata design, and the development of FAIR-aligned research infrastructures. Her expertise includes managing archaeological datasets, comparative collections, and the digital transformation of heritage research. Dr. Tsiafaki also addresses the ethical and epistemological dimensions of digital heritage and AI in archaeology. She actively fosters collaboration between humanities and technical domains and contributes to national and European initiatives promoting innovation, accessibility, and responsible use of archaeological data. 

Her research interests include 3D reconstruction and scene understanding, with a focus on computer vision and machine learning methods for 3D data. She is also a research associate at Athena Research Center, where she works on robot-acquired 3D data, focusing on the automatic identification of problematic regions in reconstructed scenes and the development of more automated, robust, and semantically enriched 3D reconstruction workflows.

She has professional experience as an engineer, with a focus on field engineering and automation systems. She is currently a Research Associate at the Athena Research Center, where she works on cultural heritage and environmental projects, contributing to the development and management of datalake infrastructures.