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Re: [igraph] Doubt betweenness {igraph}
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From: |
Tamás Nepusz |
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Subject: |
Re: [igraph] Doubt betweenness {igraph} |
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Date: |
Mon, 11 Mar 2013 21:54:52 +0100 |
> I am graduating from PUC Minas Brazil and my work theme of completion is on
> the R language, specifically on the package IGRAPH. I wonder if you can help
> me understand how R calculates the centrality of edges in the function below:
The calculation is not implemented in R; it is implemented in C and R just
calls the compiled C code. As far as I know, the implementation is based on the
following algorithm:
Ulrik Brandes: A Faster Algorithm for Betweenness Centrality. Journal of
Mathematical Sociology 25(2):163-177, 2001.
http://www.inf.uni-konstanz.de/algo/publications/b-fabc-01.pdf
The paper focuses on the betweenness scores of the nodes, but the same idea can
be used to calculate the betweenness scores of the edges as well.
--
T.