Pepa Gencheva, University of Sofia and SiteGround
%Yasen Kiprov, University of Sofia and SiteGround
%Venelin Kovatchev, Universitat de Barcelona
%Ivelina Nikolova, Bulgarian Academy of Sciences and Ontotext AD
%Irina Temnikova, Qatar Computing Research Institute, HBKU
Bulgarian Academy of Sciences
%Union of Scientists in Bulgaria
%Science & Education Foundation, Bulgaria
%Al–Farabi Kazakh National University, Kazakhstan
%Kavala Institute of Technology, Greece
%Institute of Power Engineering, National Academy of Sciences, Belarus
%Department of Engineering and Computer Graphics, ITMO University, Russia