?url_ver=Z39.88-2004&rft_id=arXiv%3A1702.06016&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=http%3A%2F%2Feprints.imtlucca.it%2F3687%2F&rft.title=Public+discourse+and+news+consumption+on+online+social+media%3A+A+quantitative%2C+cross-platform+analysis+of+the+Italian+Referendum&rft.creator=Del+Vicario%2C+Michela&rft.creator=Gaito%2C+Sabrina&rft.creator=Quattrociocchi%2C+Walter&rft.creator=Zignani%2C+Matteo&rft.creator=Zollo%2C+Fabiana&rft.subject=H+Social+Sciences+(General)&rft.subject=HA+Statistics&rft.description=The+rising+attention+to+the+spreading+of+fake+news+and+unsubstantiated+rumors+on+online+social+media+and+the+pivotal+role+played+by+confirmation+bias+led+researchers+to+investigate+different+aspects+of+the+phenomenon.+Experimental+evidence+showed+that+confirmatory+information+gets+accepted+even+if+containing+deliberately+false+claims+while+dissenting+information+is+mainly+ignored+or+might+even+increase+group+polarization.+It+seems+reasonable+that%2C+to+address+misinformation+problem+properly%2C+we+have+to+understand+the+main+determinants+behind+content+consumption+and+the+emergence+of+narratives+on+online+social+media.+In+this+paper+we+address+such+a+challenge+by+focusing+on+the+discussion+around+the+Italian+Constitutional+Referendum+by+conducting+a+quantitative%2C+cross-platform+analysis+on+both+Facebook+public+pages+and+Twitter+accounts.+We+observe+the+spontaneous+emergence+of+well-separated+communities+on+both+platforms.+Such+a+segregation+is+completely+spontaneous%2C+since+no+categorization+of+contents+was+performed+a+priori.+By+exploring+the+dynamics+behind+the+discussion%2C+we+find+that+users+tend+to+restrict+their+attention+to+a+specific+set+of+Facebook+pages%2FTwitter+accounts.+Finally%2C+taking+advantage+of+automatic+topic+extraction+and+sentiment+analysis+techniques%2C+we+are+able+to+identify+the+most+controversial+topics+inside+and+across+both+platforms.+We+measure+the+distance+between+how+a+certain+topic+is+presented+in+the+posts%2Ftweets+and+the+related+emotional+response+of+users.+Our+results+provide+interesting+insights+for+the+understanding+of+the+evolution+of+the+core+narratives+behind+different+echo+chambers+and+for+the+early+detection+of+massive+viral+phenomena+around+false+claims.&rft.publisher=arXiv&rft.date=2017&rft.type=Working+Paper&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.language=en&rft.rights=cc_by_nc&rft.identifier=http%3A%2F%2Feprints.imtlucca.it%2F3687%2F1%2F1702.06016.pdf&rft.identifier=++Del+Vicario%2C+Michela+and+Gaito%2C+Sabrina+and+Quattrociocchi%2C+Walter+and+Zignani%2C+Matteo+and+Zollo%2C+Fabiana++Public+discourse+and+news+consumption+on+online+social+media%3A+A+quantitative%2C+cross-platform+analysis+of+the+Italian+Referendum.++Working+Paper+++arXiv+++++++(Submitted)+++&rft.relation=https%3A%2F%2Farxiv.org%2Fabs%2F1702.06016&rft.relation=arXiv%3A1702.06016