Classification of Drivers' Mental Workload Levels: Comparison of Machine Learning Methods Based on ECG and Infrared Thermal Signals. - Daniela Cardone; David Perpetuini; Chiara Filippini; Lorenza Mancini; Sergio Nocco; Michele Tritto; Sergio Rinella; Alberto Giacobbe; Giorgio Fallica; Fabrizio Ricci; Sabina Gallina; Arcangelo Merla (Sensors, 2022)