Engineering Research Center of Digital Forensics;
Ministry of Education;
School of Computer and Software;
Jiangsu Engineering Center of Network Monitoring;
Jiangsu Collaborative Innovation Center on Atmospheric Environment and Equipment Technology;
Nanjing University of Information Science&Technology;
Nanjing;
210044;
China;
IT Fundamentals and Education Technologies Applications;
University of Information Technology and Management in Rzeszow;
Rzeszow Voivodeship;
100031;
Poland;
Artificial intelligence; COVID-19; medical applications; clinical diagnosis;