TL;DR
This paper analyzes the distribution and roles of social capitalists on Twitter, revealing their high visibility and strategic positions within community structures, which may facilitate malicious influence.
Contribution
The study extends existing community role measures with a new unsupervised approach, providing deeper insights into social capitalists' positions in Twitter networks.
Findings
Social capitalists occupy highly visible community roles
They are strategically positioned across multiple communities
Their roles facilitate increased influence and visibility
Abstract
In the context of Twitter, social capitalists are specific users trying to increase their number of followers and interactions by any means. These users are not healthy for the Twitter network since they flaw notions of influence and visibility. Indeed, it has recently been observed that they are real and active users that can help malicious users such as spammers gaining influence. Studying their behavior and understanding their position in Twitter is thus of important interest. A recent work provided an efficient way to detect social capitalists using two simple topological measures. Based on this detection method, we study how social capitalists are distributed over Twitter's friend-to-follower network. We are especially interested in analyzing how they are organized, and how their links spread across the network. Answering these questions allows to know whether the social capitalism…
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