When Models Lie, We Learn: Multilingual Span-Level Hallucination Detection with PsiloQA. - Elisei Rykov; Kseniia Petrushina; Maksim Savkin; Valerii Olisov; Artem Vazhentsev; Kseniia Titova; Alexander Panchenko; Vasily Konovalov; Julia Belikova (CoRR, 2025)