Mathieu Valette

Mathieu Valette is a University Professor at the Institut National des Langues et Civilisations Orientales (INALCO) in Paris, France, where he serves as Director of the Texts, Computer Science, Multilingualism department since 2021. He leads the ERTIM research team and coordinates the ANR AID ASTRID GECKO project on cognitive warfare since 2023. Previously, he served as President of section 7 (language sciences) of the CNU from 2014-2019 and Director of ERTIM from 2010-2019.

Professor Valette's research focuses on the intersection of linguistics, computational methods, and text analysis. His work spans corpus semantics, statistical analysis of textual data, epistemology of natural language processing, and the characterization of harmful content. He has developed methodologies for subjective data mining and has made significant contributions to textual lexicology and automatic language processing. His research bridges theoretical linguistics with practical applications in multilingual contexts, particularly extending from French linguistics to Chinese language processing.

Analysis of Professor Valette's recent publications (2020-2025) reveals a clear evolution in his research interests, with increasing focus on cognitive warfare, language models, and mental health detection through social media analysis. His work demonstrates a consistent integration of statistical text analysis with linguistic theory, particularly in the areas of sentiment analysis, corpus semantics, and the epistemological foundations of NLP. Notably, his research has expanded from theoretical linguistics to address contemporary challenges in AI ethics, cross-cultural language processing, and the societal impacts of language technologies.

Throughout his career, Professor Valette has maintained active collaborations with researchers across multiple disciplines, including computer science, public health, political science, and cognitive psychology. His administrative roles in major research projects and department leadership demonstrate his significant contributions to the academic community beyond his direct research output.