Dr Dimitrios Vogiatzis is a collaborating research at NCSR “Demokritos” since 2007. He is also affiliated to the American College of Greece, Deree, where he teaches undergraduate and postgraduate courses in machine learning, artificial intelligence and complex networks. He graduated from the Department of Informatics & Telecommunication, National & Capodistrian University of Athens; MSc in Knowledge Based Systems, University of Edinburgh; PhD in Knowledge Extraction form Neural Networks, National Technical University of Athens. Dr Vogiatzis has served as visiting professor at the University of Cyprus. He has participated in national and European research projects and has more than 40 publications in conferences, journals and book chapters. Dr. Vogiatzis research interests are in machine learning, data mining, and in the analysis of complex graphs with applications in social network analysis and precision medicine.