Alexandros Papadopoulos received his diploma in 2016 from the Department of Electrical and Computer Engineering of Aristotle University of Thessaloniki. Currently, he is pursuing his Phd in the same department as a member of the Multimedia Understanding Group (MUG) and working as a research associate in the EU-funded i-PROGNOSIS and BigO projects. His research interests include machine learning from sensitive and noisy data as well as semi-supervised learning techniques.