Dr Karkaletsis is the Director of the Institute of Informatics & Telecommunications at NCSR Demokritos, and a member of the High Level Advisory Committee on AI to the Greek Prime Minister. Also member of the National Commission for Bioethics & Technoethics and the Expert Group on AI Incidents at OECD.AI. Previously Member of the National Council for Research and Innovation (ESETEK) and Head of the Software & Knowledge Engineering Lab (SKEL The AI Lab) at IIT. Coordinator, scientific and technical manager of many European and national projects and organiser of numerous scientific international conferences, workshops and summer schools. For more than 10 years he was responsible for the Institute's educational activities, and initiated joint PhD scholarships programmes with several Universities abroad. He launched the Masters programmes for NCSR Demokritos in collaboration with Greek Universities (MSc in Data Science and MSc in Artificial Intelligence), and set up the initial educational programme for primary and secondary schools visiting the research centre. His research interests are in the areas of Artificial Intelligence, content analysis, big data management, knowledge representation, human-machine interaction.