Deep learning for seismic velocity estimation and mapping from sparse data in underground environmentValentin Tschannen, Kilyann Richard, Élodie Morgan, Tristan Barbagelata, Timothée Lamare, Béatrice Yven and Julien CottonE3S Web Conf., 700 (2026) 02005DOI: https://doi.org/10.1051/e3sconf/202670002005