Dr André Silva de Carvalho

André Silva de Carvalho is a visiting researcher at PRISM, École de Management de la Sorbonne, Université Paris 1 Panthéon-Sorbonne, and a senior researcher in the Cognitive Warfare research group at the Brazilian Naval War College. He trained in psychology and holds a PhD in Administration from ESPM in Brazil. His doctoral research examined how the structure of social networks affects the speed at which information spreads. His current work combines social network analysis and natural language processing to study how shared interests shape the formation of online groups and how narratives travel between them. In European security studies, he is particularly interested in what public online evidence can tell us about coordinated influence and how institutions can assess that evidence while safeguarding legitimate political debate. At Sunbelt 2025 in Paris, he presented research on strategic narratives, networked influence and democratic resilience.