Cosmology and its Data Flood Challenge
Jean-Luc Starck

Upcoming surveys in astrophysics such as the Large Synoptic Survey Telescope (LSST), the Square Kilometer Array (SKA), or Euclid will provide a fantastic flood data, and innovative statistical methods will be required to control both errors and systematics. We first review quickly these surveys, then we describe how advanced statistical methods   on dimension reduction or sparsity will help to extract the significant information. The case of dark matter mass map reconstruction will be presented.