Ontology type: schema:ScholarlyArticle Open Access: True
2017-07-24
AUTHORSMiha Grčar, Darko Cherepnalkoski, Igor Mozetič, Petra Kralj Novak
ABSTRACTSocial media are an important source of information about the political issues, reflecting, as well as influencing, public mood. We present an analysis of Twitter data, collected over 6 weeks before the Brexit referendum, held in the UK in June 2016. We address two questions: what is the relation between the Twitter mood and the referendum outcome, and who were the most influential Twitter users in the pro- and contra-Brexit camps? First, we construct a stance classification model by machine learning methods, and are then able to predict the stance of about one million UK-based Twitter users. The demography of Twitter users is, however, very different from the demography of the voters. By applying a simple age-adjusted mapping to the overall Twitter stance, the results show the prevalence of the pro-Brexit voters, something unexpected by most of the opinion polls. Second, we apply the Hirsch index to estimate the influence, and rank the Twitter users from both camps. We find that the most productive Twitter users are not the most influential, that the pro-Brexit camp was four times more influential, and had considerably larger impact on the campaign than the opponents. Third, we find that the top pro-Brexit communities are considerably more polarized than the contra-Brexit camp. These results show that social media provide a rich resource of data to be exploited, but accumulated knowledge and lessons learned from the opinion polls have to be adapted to the new data sources. More... »
PAGES6
http://scigraph.springernature.com/pub.10.1186/s40649-017-0042-6
DOIhttp://dx.doi.org/10.1186/s40649-017-0042-6
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PUBMEDhttps://www.ncbi.nlm.nih.gov/pubmed/29266132
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