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Disentangling Sources of Influence in Online Social Networks


Piškorec, Matija; Šmuc, Tomislav; Šikić, Mile
Disentangling Sources of Influence in Online Social Networks // IEEE access, 7 (2019), 131692-131704 doi:10.1109/access.2019.2940762 (međunarodna recenzija, članak, znanstveni)


Naslov
Disentangling Sources of Influence in Online Social Networks

Autori
Piškorec, Matija ; Šmuc, Tomislav ; Šikić, Mile

Izvornik
IEEE access (2169-3536) 7 (2019); 131692-131704

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Influence ; social networks: peer and authority
(Influence ; social networks ; peer and authority)

Sažetak
Information propagation in online social networks is facilitated by two types of influence - endogenous (peer) influence that acts between users of the social network and exogenous (external) that corresponds to various external mediators such as online news media. However, inference of these influences from data remains a challenge, especially when data on the activation of users is scarce. In this paper we propose a methodology that yields estimates of both endogenous and exogenous influence using only a social network structure and a single activation cascade. Our method exploits the statistical differences between the two types of influence - endogenous is dependent on the social network structure and current state of each user while exogenous is independent of these. We evaluate our methodology on simulated activation cascades as well as on cascades obtained from several large Facebook political survey applications. We show that our methodology is able to provide estimates of endogenous and exogenous influence in online social networks, characterize activation of each individual user as being endogenously or exogenously driven, and identify most influential groups of users.

Izvorni jezik
Engleski

Znanstvena područja
Računarstvo



POVEZANOST RADA


Ustanove
Fakultet elektrotehnike i računarstva, Zagreb,
Institut "Ruđer Bošković", Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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