A neural network approach for improved bearing prognostics of wind turbine generators Sharaf Eddine Kramti, Jaouher Ben Ali, Lotfi Saidi, Mounir Sayadi, Moez Bouchouicha and Eric Bechhoefer Eur. Phys. J. Appl. Phys., 93 2 (2021) 20901 Published online: 19 February 2021 DOI: 10.1051/epjap/2021200259