Table $1\mathrm{.}1\mathrm{.}1$: Common sources of data.

$\backslash$table$[[$Social networks,Traditional business systems,Internet of things$],[\backslash$table$[[$Human$-$generated data$],[-$ Social Networks: Facebook$],[$Twitter$,$ etc.$],[-$ Blogs and comments$],[-$ Personal documents$],[-$ Pictures Instagram, Snapchat,$],[$etc$.],[-$ Videos: YouTube etc$],[-$ Internet searches$],[-$ Mobile data text messages$],[-$ User$-$generated maps$],[-$ E$-$mall$]],\backslash$table$[[$Data produced by Public Agencies$],[-$ Medical records$],[$Data produced by businesses$],[-$ Commercial transactions$],[-$ Banking$/$stock records$],[-$ E$-$commerce$],[-$ Credit cards$]],\backslash$table$[[$Data from sensors$],[-$ Fixed sensors$],[-$ Home automation$],[-$ Weather$/$pollution sensors$],[-$ Traffic sensors$/$webcam$],[-$ Scientific sensors$],[-$ Security$/$surveillance$],[$videos$/$images$],[-$ Mobile sensors $($tracking$)],[-$ Mobile phone location$],[-$ Cars$],[-$ Satellite images$],[$Data from computer systems$],[-$ Logs$],[-$ Web logs$]]]]$

Source Unced Nrions Sqassics Oivition ${2015}^1$