w 20 | ocus cnrsI InternatIonal magazIne F The BIGDATA revolutIon On Wikipedia nine.ltabzero.ltabzero.ltabzero.ltab new articles are written On Youtube one.ltabzero.ltabfour.ltab,zero.ltabzero.ltabzero.ltab hours of video are uploaded I theInternettolarge-scale an ew e H ; I otol From F I researchfacilities,theamountof av delugeofinformation.Howcanit “Every two days, we---said Google CEOcreate as much information as we did fromthe dawn of civilization up until 2003,”burning issue for scientists and econothistoiswithneedDatatodaycopealiketouserswaysgeneratedandexponentially.databetterdigitalgrowingproducersdevise /cnrs IF © beclassified,stored,maderelevant? Eric Schmidt at a conference in the US in CNRS International Magazine 2010. And this observation illustrates a examinesthebitsandbytes mists worldwide: how to cope with such thatarereshapingourworld. unprecedented amounts of data? “We are faced with a real deluge of data,” says ByFabrIce Demarthon, DenIs Delbecq anD grégory Fléchet Christine Collet, head of the DB team at the LIG1 and full professor at the Grenoble Institute of Technology. Numbers speak for themselves. Every second, one hour of anewchallenge 20 i than 1.5 million emails are sent across thevideo is uploaded to YouTube and more coping with a Data Deluge24 i globe.2 Scientists are no less productive. In Datastorage: ateething Problem 26 i eight years (2000-2008), the Sloan Digital
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