eprintid: 3554 rev_number: 11 eprint_status: archive userid: 69 dir: disk0/00/00/35/54 datestamp: 2016-10-04 11:19:22 lastmod: 2016-10-04 11:19:22 status_changed: 2016-10-04 11:19:22 type: monograph metadata_visibility: show creators_name: Bessi, Alessandro creators_name: Zollo, Fabiana creators_name: Del Vicario, Michela creators_name: Puliga, Michelangelo creators_name: Scala, Antonio creators_name: Caldarelli, Guido creators_name: Uzzi, Brian creators_name: Quattrociocchi, Walter creators_id: creators_id: fabiana.zollo@imtlucca.it creators_id: michela.delvicario@imtlucca.it creators_id: michelangelo.puliga@imtlucca.it creators_id: creators_id: guido.caldarelli@imtlucca.it creators_id: creators_id: walter.quattrociocchi@imtlucca.it title: Users Polarization on Facebook and Youtube ispublished: submitted subjects: QC divisions: CSA full_text_status: public monograph_type: working_paper abstract: On social media algorithms for content promotion, accounting for users preferences, might limit the exposure to unsolicited contents. In this work, we study how the same contents (videos) are consumed on different platforms -- i.e. Facebook and YouTube -- over a sample of 12M of users. Our findings show that the same content lead to the formation of echo chambers, irrespective of the online social network and thus of the algorithm for content promotion. Finally, we show that the users' commenting patterns are accurate early predictors for the formation of echo-chambers. date: 2016 date_type: published publisher: arXiv pages: 13 id_number: arXiv:1604.02705 institution: IMT Institute for Advanced Studies Lucca official_url: https://arxiv.org/abs/1604.02705 projects: EU FET project MULTIPLEX (nr. 317532) projects: EU FET project SIMPOL (nr. 610704) projects: EU FET project DOLFINS (nr. 640772) projects: SOBIGDATA (nr. 654024) citation: Bessi, Alessandro and Zollo, Fabiana and Del Vicario, Michela and Puliga, Michelangelo and Scala, Antonio and Caldarelli, Guido and Uzzi, Brian and Quattrociocchi, Walter Users Polarization on Facebook and Youtube. Working Paper arXiv (Submitted) document_url: http://eprints.imtlucca.it/3554/1/1604.02705v1.pdf