Linked data visualization, 2020: title page (Nikos Bikakis) page 141 (Dr. Nikos Bikakis is a postdoctoral researcher at the University of Ioannina, Greece. Before that, he was a postdoctoral researcher at ATHENA Research Center and Athens University of Economics & Business, as well as an adjunct lecturer at the University of West Attica, Greece. Received his Ph. D. in Computer Science from the National Technical University of Athens and his Diploma in Computer Engineering from the Technical University of Crete, Greece)