Generative Models for Fast Calorimeter Simulation: the LHCb case> Viktoria Chekalina, Elena Orlova, Fedor Ratnikov, Dmitry Ulyanov, Andrey Ustyuzhanin and Egor Zakharov EPJ Web Conf., 214 (2019) 02034 Published online: 17 September 2019 DOI: 10.1051/epjconf/201921402034