Multilingual Epidemic Event Extraction : From Simple Classification Methods to Open Information Extraction (OIE) and Ontology Sihem Sahnoun author Gaël Lejeune author 2021-09 text Proceedings of the International Conference on Recent Advances in Natural Language Processing (RANLP 2021) Ruslan Mitkov editor Galia Angelova editor INCOMA Ltd. Held Online conference publication sahnoun-lejeune-2021-multilingual https://aclanthology.org/2021.ranlp-1.138/ 2021-09 1227 1233