title: Guest editorial. Learning in nonstationary and evolving environments.
authors.forename: Robi
authors.initials: R
authors.lastname: Polikar
authors.forename: Cesare
authors.initials: C
authors.lastname: Alippi
mesh_terms: D000465:Algorithms; D001185:Artificial Intelligence; D003198:Computer Simulation; D017753:Ecosystem; D005246:Feedback; D015233:Models, Statistical; D010363:Pattern Recognition, Automated / Q000379:methods*; D012815:Signal Processing, Computer-Assisted