gephi.team team mailing list archive
-
gephi.team team
-
Mailing list archive
-
Message #00742
[Question #128220]: Relative Betweenness
New question #128220 on Gephi:
https://answers.launchpad.net/gephi/+question/128220
Hi all,
I'm a bit confused about the calculation of the relative betweennness. As far as I see in the source code, the betweenness is normalized by (n-1)(n-2)/2 for directed and (n-1)(n-2) for undirected graphs:
--snip-- //GraphDistance.java
if (!mDirected) {
mBetweenness[s_index] /= 2;
}
if (this.mRelativeValues) {
mCloseness[s_index] = 1.0 / mCloseness[s_index];
mBetweenness[s_index] /= ((mN - 1) * (mN - 2)) / 2;
}
--snap--
However, this is not correct and should be directly opposed. The betweenness for directed graphs is normalized by (n-1)(n-2) and for undirected graphs by (n-1)(n-2)/2.
Is there something I missed?
Thanks
matthias
You received this question notification because you are a member of
Gephi Team, which is an answer contact for Gephi.