In collaboration with Isabelle Guyon (Paris), Jordi Soriano (Barcelona), Javier Orlandi (Calgary) and others, we organized a machine learning Challenge on the Kaggle platform to unravel the connectivity of neuronal networks (realistic simulations, in order to know the ground truth and benchmark algorithms). The provided data was solely based on fluorescence time series of spontaneousLire la suite “Connectivity from calcium imaging of cultures?”