Trakadas P, Masip-Bruin X, Facca FM, Spantideas ST, Giannopoulos AE, Kapsalis NC, Martins R, Bosani E, Ramon J, Prats RG, et al. A reference architecture for cloud?edge meta-operating systems enabling cross-domain, data-intensive, ML-assisted applications: Architectural overview and key concepts. Sensors. 2022;22:9003.