A Machine-Learning Compositional Study of Exoplanetary Material Accreted Onto Five Helium-Atmosphere White Dwarfs with cecilia. - Mariona Badenas-Agusti; Siyi Xu; Andrew Vanderburg; Kishalay De; Patrick Dufour; Laura K. Rogers; Susana Hoyos; Simon Blouin; Javier Viaña; Amy Bonsor; Ben Zuckerman (CoRR, 2025)