Hybrid modelling of ruble exchange rates amidst the Russo-Ukrainian conflict using swarm and fuzzy neural networks. - Raad Abdelhalim Ibrahim Alsakarneh; Sagiru Mati; Goran Yousif Ismael; Serag Masoud; Nazifi Aliyu; Ahmed Samour; Berna Uzun (Eng. Appl. Artif. Intell., 2025)