School of Public Administration;
Zhengzhou University;
Zhengzhou;
China;
National University of Modern Languages;
Islamabad;
Pakistan;
Department for Management of Science and Technology Development;
Ton Duc Thang University;
Ho Chi Minh City;
Vietnam;
Faculty of Information Technology;
Ton Duc Thang University;
Ho Chi Minh City;
Viet Nam;
Institute of Computing and Information Technology;
Gomal University;
D.I.Khan(KP);
Pakistan;
Student feedback analysis; sentiments; opinion words; polarity shifters; lexicon-based;