A reference architecture for cloud–edge meta-operating systems enabling cross-domain, data-intensive, ML-assisted applications: Architectural overview and key concepts - Trakadas, Panagiotis; Masip-Bruin, Xavi; Federico M. Facca; Sotirios T. Spantideas; Anastasios E. Giannopoulos; Nikolaos C. Kapsalis; Rui Martins; Enrica Bosani; Ramon, Joan; Raül González Prats; others (Sensors, 2022)