3. Introduction to Big Data. Megadata opportunities, storage and analysis

Bernard ESPINASSE, University Professor, - Aix-Marseille University, - École Polytechnique Universitaire de Marseille, - LSIS UMR CNRS 7296, Marseille

Patrice BELLOT, University Professor, - Aix-Marseille University, - École Polytechnique Universitaire de Marseille, - LSIS UMR CNRS 7296, Marseille

Over the last twenty years, the amount of data generated has only increased. Today, we produce a huge mass of data every year, estimated at almost 3 trillion (3,1018) bytes of data. It is estimated that in 2016, 90% of the world's data was created in the previous two years. According to the IDC (International Data Corporation) report, the total mass of data created and copied worldwide in 2011 was 1.8 zettabytes, or 10 ^...