Evaluating the remote examination process applied by the Hellenic Open University (HOU) during COVID-19 pandemic: Students' opinions. - Alexandros Liapis; George Vorvilas; Alkis Korovesis; Dimitra Aggelopoulou; Nikos Karousos; Efstathios P. Efstathopoulos (EDUCON, 2021)

Faculty members' Perceptions of Remote Electronic Examinations in Distance Academic Education. - George Vorvilas; Alexandros Liapis; Nikos Karousos; Leonidas Theodorakopoulos; Eirini Lagiou; Achilles Kameas (IISA, 2023)

An Automated Text Summarization Approach for Open-ended Responses in Student Online Surveys. - George Vorvilas; Despoina Pantazi; Evgenia Paxinou; Georgios Feretzakis; Dimitrios Kalles; Achilles Kameas; Nikos Karousos; Vassilios S. Verykios (IISA, 2024)

Supporting Argumentation in a Service-Oriented Hypertext System. - Nikos Karousos; Manolis Tzagarakis; George Vorvilas; Nikos I. Karacapilidis (KES, 2024)

Summarizing University Students? Qualitative Feedback on Online Exams: A Microservice-Oriented Approach. - Nikos Karousos; George Vorvilas; Despoina Pantazi; Vassilios S. Verykios (PCI, 2024)

Summarizing responses to open-ended questions in educational surveys: A microservice-oriented approach. - Nikos Karousos; George Vorvilas; Despoina Pantazi; Manolis Tzagarakis; Nikos I. Karacapilidis; Vassilios S. Verykios (Intell. Decis. Technol., 2025)