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Small Worlds with a Difference: New Gatekeepers and the Filtering of Political Information on Twitter

Jürgens, Pascal and Jungherr, Andreas and Schoen, Harald (2011) Small Worlds with a Difference: New Gatekeepers and the Filtering of Political Information on Twitter. pp. 1-5. In: Proceedings of the ACM WebSci'11, June 14-17 2011, Koblenz, Germany.

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Political discussions on social network platforms represent an increasingly relevant source of political information, an opportunity for the exchange of opinions and a popular source of quotes for media outlets. We analyzed political communication on Twitter during the run-up to the German general election of 2009 by extracting a directed network of user interactions based on the exchange of political information and opinions. In consonance with expectations from previous research, the resulting network exhibits small-world properties, lending itself to fast and efficient information diffusion. We go on to demonstrate that precisely the highly connected nodes, characteristic for small-world networks, are in a position to exert strong, selective influence on the information passed within the network. We use a metric based on entropy to identify these New Gatekeepers and their impact on the information flow. Finally, we perform an analysis of their input and output of political messages. It is shown that both the New Gatekeepers and ordinary users tend to filter political content on Twitter based on their personal preferences. Thus, we show that political communication on Twitter is at the same time highly dependent on a small number of users, critically positioned in the structure of the network, as well as biased by their own political perspectives.

Item Type:Conference or Workshop Item (Paper)
Web Science Comments:WebSci Conference 2011
Subjects:WS9 Sociology > WS93 Social Networks
WS5 Psychology > WS51 Social Attitudes
Web Science Events > Web Science 2011
ID Code:449
Deposited By: Lisa Sugiura
Deposited On:07 Jun 2011 16:46
Last Modified:25 Oct 2011 17:12

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