From confirmation bias to echo-chambers : a data-driven approach

To cast a light on the phenomenon of misinformation, in this report we will present and discuss scientific evidence coming from a data-driven approach to understand the interplay between users, social media and news consumption. Internet and social media changed the interaction between users and information. Our results showed that online users tend to select information confirming their worldview in spite of dissenting information and that such a trend fosters the emergence of polarized groups around shared narratives. [Publisher's text].