Dr. Charalampos Bratsas is the founder of the Open Knowledge Foundation Greece and the CEO. He is working as a researcher and teaching academic staff at the Department of Mathematics, in Aristotle University of Thessaloniki (AUTH) and participates as a researcher in Medical Physics Laboratory of AUTH. Main research areas are Open Data (creator of Greek Open Data Hub), Semantic Web, Social Semantic Web, Linked Data (Greek DBpedia Coordinator), Data Mining, Big Data, and AI applications. He is also a post-doctoral scientific associate at Complex System Analysis Laboratory of AUTH. He holds a bachelor degree in Maths (1999), master degree in Medical Informatics and PhD in Informatics in Medical Education (2008). He has participated in many European Committee research programs. He has more than 60 articles in the fields of Semantic Web, Big Data, Artificial Intelligence and Data Analysis published in scientific Journals and conference proceedings.