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Abstract Before Facebook, there was the social network formed by members of the same community or village. How does information circulate in the  social network? How do village members help each other ? Or sometimes constrain each …

Abstract Challenges are proposed by public services, companies or scientific laboratories, and are based on real-life problems. Participants submit the results of their classification or prediction algorithms, which are then put into competition via the …

Abstract In 11th-century Andalusia   , and in the face of the collapse of the empire, Ibn Hazm thinks at the same time about political division and dissension in love. For love is a fitna, and a "secret   " lies in the words that say it, or fail to say …

The year was marked by the impressive performance of large-scale language models and generative artificial intelligence. These involve large-scale neural networks, which are having a considerable impact in science, industry and services, as well as in …

Abstract Based on the notion of potential space developed by psychoanalyst Winnicot, and in the wake of his reflections on culture as sophisticated play practices,   Hélène Merlin-Kajman proposes to consider reading as a transitional space, where the …

Documents and media Download support Abstract Is it still possible to read ? In France, Europe and beyond, the most recent surveys reveal a decline in the number of readers and reading time in the general population, and particularly among young people, …

Abstract Stars play an essential role in the history of our Universe. Stars synthesize heavy elements such as oxygen and carbon, which are essential for life. Stars also inject energy into galaxies in the form of radiation and motion. Finally, stars orbit …

Abstract Stars with masses of less than 8 solar masses do not have sufficient temperature to ignite carbon fusion , and end their lives as white dwarfs, compact cores after ejection from their envelopes in planetary nebulae. The core is stabilized against …

Abstract Everyone knows that tolerance lies at the heart of Enlightenment thinking. But has the extent of the pluralistic dynamic that this new demand is creating at the heart of European consciousness  been fully appreciated? Starting with Pierre Bayle …

Abstract I will start to motivate a few recent results on Poincaré series from a naive personal viewpoint. Then I will report on joint work with Yannick Bonthonneau, Matthieu Léautaud, Gabriel Rivière where we consider Poincaré series on the torus which …

Abstract We will complete the calculation of Ruelle resonances of a compact hyperbolic surface, started in the last lecture, using the representation theory of PSL(2, R). The case of principal series will be treated in detail. We'll calculate the Fourier …

Abstract The development of architectures exploiting " deep " neural learning methods in machine translation has led to a considerable increase in the acceptability and usability of machine-computed translations. These new architectures have also made it …

Abstract What current migration owes to colonization Migration " regional ", intercontinental migration Neither denial nor repentance, but facing up to our shared …

Abstract History of the discipline, recent approaches. Current challenges : cover less endowed languages ; take context into account ; be robust to linguistic …

Abstract Systems of particles are naturally described in a Lagrangian way : the unknowns (positions, velocities...) are related to the entities, numbered once and for all, and the Euclidean frame in this Lagrangian framework is very well adapted to the …