Feature-Level Explainability in EEG-Based Fatigue Detection Using LASSO and Functional Connectivity. - Stavros Theofanis Miloulis; Ioannis Kakkos; Christina Kaliampakou; Ioannis Zorzos; Georgios N. Dimitrakopoulos; Ioannis A. Vezakis; Ioannis N. Kouris; Athanasios Anastasiou; George K. Matsopoulos (IEEE Big Data, 2025)