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What is information theory as postulated by Claude Shannon in 1948? How did it come about? Watch the replay of Alain Chenciner's presentation during the "Mathematics of Information" day, organized by the Department of Mathematics and Applications [DMA] of the ENS. --------------------- ???? Watch all the conferences from the "Mathematics of Information" day in replay: http://savoirs.ens.fr/recherche.php?r... ???? About Alain Chenciner Alain Chenciner is a French mathematician and researcher in applied mathematics. With Jacques Laskar, he leads the "astronomy and dynamical systems" research team that they created in 1992, within the Institute of Celestial Mechanics and Ephemeris Calculation [IMCCE] of the Paris Observatory [UMR 8028 of the CNRS]. He is also professor emeritus at Paris-Diderot University. --------------------- Welcome to the official channel of ENS-PSL! ???? The École normale supérieure-PSL is a school based on research that links research excellence in Literature and Science to training in the face of the scientific and social, national and international challenges of the contemporary world. It implements a world-class research and training policy, with a view to intellectual freedom and multidisciplinarity in literature and science. Personalized monitoring, multiplicity of initiatives and commitments of normaliens and normaliennes in the social world, investment in the intellectual and scientific debates of its time are all characteristics of the École normale supérieure since its creation, and at the heart of the PSL University of which it is a component institution. To not miss our latest videos, follow us on ????https://www.youtube.com/c/EnsFrEcole_... You can also find us on our website or our social networks: ???? Website: https://www.ens.psl.eu/ ???? Twitter: / ens_ulm ???? Facebook: / ecole.normale.superieure.ulm ???? LinkedIn: / ecolenormalesuperieure ???? Instagram: https://www.instagram.com/normalesup/...