Ceasefire Hierarchical Weapon Dataset - Thierry Malon; Sylvie Chambon; Alain Crouzil; Loubna Lechelek; Grégory Jalabert; Christian Brocard; Nadia Bernardeau; Laurence Abadie; Bruno Sera; Thierry Hartmann; Marjorie Le Bras (Proceedings of the 15th ACM Multimedia Systems Conference, MMSys 2024, Bari, Italy, April 15-18, 2024, 2024)