Abstract

Understanding the complex process of information spread in online social networks (OSNs) enables the efficient maximization/minimization of the spread of useful/harmful information. Users assume various roles based on their behaviors while engaging with information in these OSNs. Recent reviews on information spread in OSNs have focused on algorithms and challenges for modeling the local node-to-node cascading paths of viral information. However, they neglected to analyze non-viral information with low reach size that can also spread globally beyond OSN edges (links) via non-neighbors through, for example, pushed information via content recommendation algorithms. Previous reviews have also not fully considered user roles in the spread of information. To address these gaps, we: (i) provide a comprehensive survey of the latest studies on role-aware information spread in OSNs, also addressing the different temporal spreading patterns of viral and non-viral information; (ii) survey modeling approaches that consider structural, non-structural, and hybrid features, and provide a taxonomy of these approaches; (iii) review software platforms for the analysis and visualization of role-aware information spread in OSNs; and (iv) describe how information spread models enable useful applications in OSNs such as detecting influential users. We conclude by highlighting future research directions for studying information spread in OSNs, accounting for dynamic user roles.

Highlights

  • Information spread is the process by which a piece of information reaches different individuals [1,2]

  • A systematic review of the literature about information spread in online social networks (OSNs) reveals the following limitations of existing models that call for future research

  • The spread of information in OSNs that leads to influence is discussed in detail with an emphasis on user roles, where we review approaches and models of information spread in OSNs, discuss their shortcomings, indicate open questions, and summarize them in a taxonomy (Figure 2)

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Summary

Introduction

Information spread is the process by which a piece of information reaches different individuals [1,2]. Neglecting to address global information spread beyond OSN edges (links) via non-neighbors through, for example, information pushed via content recommendation algorithms; Third, neglecting to address the spread of non-viral information with low reach size To address these gaps from previous review papers on information spread in OSNs, this review paper contributes by: (i) presenting a comprehensive survey of the latest studies on role-aware information spread in OSNs, including the different temporal spreading patterns of viral and non-viral information; (ii) surveying modeling approaches that consider structural, non-structural, and hybrid features, and providing a taxonomy of these approaches; (iii) surveying software platforms for the analysis and visualization of role-aware information spread in OSNs; and (iv) describing how information spread models facilitate useful applications in OSNs such as detecting influential users.

Social Roles
Role Discovery Models
Structural Information Spread Models
Non-Structural Information Spread Models
Hybrid Information Spread Models
Homophily-Related Role-Aware Models
Platforms for Egocentric Role-Aware Social Network Analyses
Additional Platforms for Role-Aware Social Network Analyses
Findings
Conclusions and Future Directions

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