Explore the intriguing world of multilingual Natural Language Processing (NLP) in this 41-minute conference talk by François Yvon, recorded during the thematic meeting "Interplay between AI and mathematical modelling in the post-structural genomics era" at the Centre International de Rencontres Mathématiques in Marseille, France. Delve into the unexplained effectiveness of multilingual NLP techniques and their implications for the field. Access this insightful presentation through CIRM's Audiovisual Mathematics Library, which offers enhanced features such as chapter markers, keywords, abstracts, bibliographies, and Mathematics Subject Classification. Utilize the multi-criteria search function to discover related content by author, title, tags, or mathematical area, maximizing your learning experience in this cutting-edge domain of computational linguistics and artificial intelligence.