Learning multivariate new physics Raffaele Tito D’Agnolo, Gaia Grosso, Maurizio Pierini, Andrea Wulzer and Marco Zanetti Eur. Phys. J. C, 81 1 (2021) 89 Published online: 27 January 2021 DOI: 10.1140/epjc/s10052-021-08853-y