The Role of Social Capital in Information Diffusion Over Twitter

The Role of Social Capital in Information Diffusion over Twitter Hercules Sandim – [email protected], Danilo Azevedo – [email protected] Ana Paula Couto da Silva – [email protected] and Mirella M. Moro – [email protected] Universidade Federal de Minas Gerais, Belo Horizonte, Brazil

ABSTRACT 5 - DATA ANALYSIS Social Capital is the resulting advantage of the individual’s localization in Results: potential bots, typical users, and political fan accounts are the a social structure. Our goal is to verify which users have high information main spreaders, whereas primary media (sports news) and independent capital, bridging and brokerage for providing and spreading information. To experts are the main providers. do so, we analyze their profiles on trending topics over Twitter. Our results show potential bots and fan accounts as the main information spreaders in Top 10 users – DC Top 10 users – EC Rank User SC Rank User SC Brazil, a very concerning result given the upcoming presidential election in 1o @Flamengo N 1o @ClaraGuimarae ∞ October 2018. 2o @FoxSportsBrasil N 2o @hey dann ♥ o J o 1 - INTRODUCTION 3 @bbb 3 @pastorasandram5  4o @Esp Interativo N 4o @JonahWhite30  5o @VascodaGama N 5o @ DiasFabio  6o @globoesportecom N 6o @AntroReality ♥ o o 7 @HugoGloss F 7 @PedroAlvesFer12  o o 8 @MomentsBrasil F 8 @jeanbuenodumke ∞ 9o @g1 J 9o @arte prima  10o @RedeGlobo J 10o @limalblue ofc  Top 10 users – BC Top 10 users – Authorities Rank User SC Rank User SC 1o @RedeGlobo J 1o MarcosA22444338 ♥ 2o @g1 J 2o @ DiasFabio  3o @Esp Interativo N 3o @jhonatalima355 ♥ CONTRIBUTIONS: Evaluate Social Capital metrics on a comparative anal- 4o @SBTonline J 4o @PHRN1895 ∞ ysis of the top 10 Twitter users and assess the potential relevance of such 5o @HugoGloss 5o @ arthurpassos ∞ users according to their behavior. F 6o @gshow J 6o @PedroAlvesFer12  o N o 2 - RELATED WORK 7 @SporTV 7 @Rgo17 ∞ o J o ♥ Information Diffusion Process → Social Capital Facets 8 @GloboNews 8 @FlavioM32255797 9o @MaisVoce Globo J 9o @RlPenha  Information Capital: Decay Centrality (DC) and Eigen Centrality (EC) o o I 10 @gustavovillani F 10 @AllanRN1981 ♥ I Brokerage Capital: Betweenness Centrality (BC)

I Hubs and Authorities: HITS Algorithm Top 10 users – Hubs Rank User SC I Bridging Capital: Neighborhood Overlap (NO) LABELS 1o @Flamengo N SC Social Category 3 - DATASET 2o @FoxSportsBrasil N providers o N After cleaning and data processing, the dataset contains 165,936 and 3 @Esp Interativo spreaders o N N 371,612 distinct users and messages, respectively. 4 @globoesportecom primary media (sports news) 5o @VascodaGama N J primary media (general) o J 6 @bbb F independent expert o 7 @venecasagrande F ∞ potential bot 8o @SporTV N ♥ fan account o 9 @maurocezar F  typical user o 10 @lucaspedrosaEI F ...... Top 10 bridges (red edges) and their neighborhood - NO

4 - METHODOLOGY

Acknowledgements: CAPES, CNPq and FAPEMIG, Brazil.