Ego network betweenness

In this paper, we look at the betweenness centrality of ego in an ego network. We discuss the issue of normalization and develop an efficient and simple algorithm for calculating the betweenness score. We then examine the relationship between the ego betweenness and the betweenness of the actor in t...

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Bibliographic Details
Published in:Social networks 2005, Vol.27 (1), p.31-38
Main Authors: Everett, Martin, Borgatti, Stephen P.
Format: Article
Language:English
Subjects:
Algorithms
Centre
Ego
History, theory and methodology
Methodology
Neighbourhoods
Networks
Social networks
Social support
Sociology
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Summary:In this paper, we look at the betweenness centrality of ego in an ego network. We discuss the issue of normalization and develop an efficient and simple algorithm for calculating the betweenness score. We then examine the relationship between the ego betweenness and the betweenness of the actor in the whole network. Whereas, we can show that there is no theoretical link between the two we undertake a simulation study, which indicates that the local ego betweenness is highly correlated with the betweenness of the actor in the complete network.
ISSN:0378-8733
1879-2111
DOI:10.1016/j.socnet.2004.11.007