NDLI: Influence patterns in topic communities of social media

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Influence patterns in topic communities of social media

Content Provider	ACM Digital Library
Author	Tserpes, Konstantinos Papaoikonomou, Thanos Varvarigou, Theodora Kardara, Magdalini Papadakis, George
Abstract	Users of Social Media typically gather into communities on the basis of some common interest. Their interactions inside these on-line communities follow several, interesting patterns. For example, they differ in the level of influence they exert to the rest of the group: some community members are actively involved, affecting a large part of the community with their actions, while the majority comprises plain participants (e.g., information consumers). Identifying users of the former category lies on the focus of interest of many recent works, as they can be employed in a variety of applications, like targeted marketing. In this paper, we build on previous research that examined influencers in the context of a popular Social Media web site, namely Twitter. Unlike existing works that consider its user base as a whole, we focus on communities that are created on-the-fly by people that post messages about a particular topic (i.e., topic communities). We examine a large and representative sample of real-world communities and evaluate to which extent their influential users determine the aggregate behavior of the entire community. To this end, we consider a practical use case: we check whether the community's overall sentiment stems from the aggregate sentiment of this core group. We also examine the dynamics of groups of influencers by assessing the strength of the ties between them. In addition, we identify patterns in the content produced by influencers and the relation between influencers of different communities. Our experiments lead to interesting conclusions that highlight many aspects of influencers' activity inside topic communities; thus, they form the basis for intelligent, data mining techniques that can automatically discover influencers in the context of a community.
Starting Page	1
Ending Page	12
Page Count	12
File Format	PDF
ISBN	9781450309158
DOI	10.1145/2254129.2254144
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2012-06-13
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Social influence Social media Topic communities
Content Type	Text
Resource Type	Article

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