When doing the statistics for closeness centrality for directed networks (also betweenness centrality) I end up with a lot of 0-values. What is the reason for this?
I can imagine for nodes that only have 1 in-degree that they might get "trapped" when direction is taken in consideration. But I also get some 0-values for data with both in- and out-degree.
Is there an easy explanation?
Zero-values for Directed Closeness Centrality
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Re: Zero-values for Directed Closeness Centrality
Hi,
Can you share your data in GEXF? It seems to be a bug.
Can you share your data in GEXF? It seems to be a bug.
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Re: Zero-values for Directed Closeness Centrality
Here is my network. It is weighted and directed, where the nodes are countries and the edges are the flow of land between countries.
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Re: Zero-values for Directed Closeness Centrality
Hi,
I can't find 0-values for data with both in- and out-degree, but for the case of self-loop. Can you point me to an example? Thanks.
I can't find 0-values for data with both in- and out-degree, but for the case of self-loop. Can you point me to an example? Thanks.
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Re: Zero-values for Directed Closeness Centrality
Examples are Congo and Costa Rica where Closeness Centrality, Betweenness Centrality and Clustering coefficient all are 0.
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Re: Zero-values for Directed Closeness Centrality
Congo and Corsta Rica have out-degree of 0, so they can't reach any other node in the network. The results are therefore consistent.