Pierre Zweigenbaum, PhD, FACMI, FIAHSI, is a senior researcher at the Laboratoire interdisciplinaire des sciences du numérique (LISN, Orsay, France), a laboratory of the Centre national de la recherche scientifique (CNRS) and the Université Paris-Saclay, where he led LISN's natural language processing group for seven years. Prior to the CNRS, he was a researcher at the Paris Public Hospitals in an Inserm team for twenty years. He was also a part-time professor at the Institut national des langues et civilisations orientales for ten years. His research focuses on natural language processing, with medicine as his main field of application. He is interested in information extraction in multilingual contexts, and has authored or co-authored methods and tools for detecting various types of medical entities, extending abbreviations, resolving coreferences and detecting relations. He has also designed methods for the automatic acquisition of linguistic knowledge from corpora and thesauri, to help extend monolingual and bilingual lexicons and terminologies, using parallel and comparable corpora. He is a graduate of École Polytechnique (1980) and Télécom Paris (1982), and holds a doctorate from Télécom Paris (1985). Former vice-president of the French Association for Natural Language Processing (ATALA) and the French Association for Artificial Intelligence (AFIA), founder and president of the French-speaking SIG of the International Medical Informatics Association, he was elected fellow of the American College of Medical Informatics in 2014 and fellow of the International Academy of Health Sciences Informatics in 2019.