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33 papers · 1 filter
Distributed image reconstruction for very large arrays in radio astronomy
André Ferrari, David Mary, Rémi Flamary +1
Current and future radio interferometric arrays such as LOFAR and SKA are characterized by a paradox. Their large number of receptors (up to millions) allow theoretically unprecede…
Non-convex Regularizations for Feature Selection in Ranking With Sparse SVM
Léa Laporte, Rémi Flamary, Stephane Canu +2
Feature selection in learning to rank has recently emerged as a crucial issue. Whereas several preprocessing approaches have been proposed, only a few works have been focused on in…
Emergent vortices in populations of colloidal rollers
Antoine Bricard, Jean-Baptiste-Caussin, Debasish Das +7
Coherent vortical motion has been reported in a wide variety of populations including living organisms (bacteria, fishes, human crowds) and synthetic active matter (shaken grains,…
Around supersymmetry for semiclassical second order differential operators
Laurent Michel
Let be a semiclassical scalar differential operator of order . The existence of a supersymmetric structure given by a matrix was exhibited in \cite{HeH…
Atomic and Molecular Data for Optical Stellar Spectroscopy
U. Heiter, K. Lind, M. Asplund +7
High-precision spectroscopy of large stellar samples plays a crucial role for several topical issues in astrophysics. Examples include studying the chemical structure and evolution…
Cold atoms: A field enabled by light
Leonardo Fallani, Anders Kastberg
Besides being a source of energy, light can also cool gases of atoms down to the lowest temperatures ever measured, where atomic motion almost stops. The research field of cold ato…