Network centralisation

[schengko]

Hi there,

can anybody tell me whether Gephi calculates the centralisation value of a given network (i.e. the degree to which the number of ties per node is distributed over all nodes)? I cannot find it in the stats... If it does, where can I see the value? If not, is there a plugin that calculates it?

Thanks in advance,
Best,
Timo

[seinecle]

Hi,

I am not sure I understand what you are looking for. Can you rephrase, or provide a reference with a url?

Thanks,

Clement

[schengko]

Sure. "The centralization of any network is a measure of how central its most central node is in relation to how central all the other nodes are." http://en.wikipedia.org/wiki/Centrality#Centralization

Or here, at the end of the sub-section: http://faculty.ucr.edu/~hanneman/nettex ... ml#Freeman

For instance, a high degree centralisation value thus indicates that a small number of nodes hold a large number of all ties in the network (thus have an extraordinarily high degree centrality, while the majority has a small degree centrality). A small score indicates that all ties are relatively equally distributed over all nodes. A star network has a graph centralisation value of 1, a circle network of 0.

Best,
Timo

[seinecle]

Hi,
Yes sure you'll find that in the "Degree" section of the stats panel. Try also other stats ("Diameter", etc) and check their results in the data laboratory: new columns should be created for nodes, detailing for each node the value for the metrics you just ran.

Best,

Clement

[cecitomassini]

Hello,

I am searching the same, the he centralisation value of the network. Not for a given node, for all the network.

As I understand the Degree is a different thing.

Did you found this measure Timo?

Best
Cecilia

[fjord_brown_flivver]

Hi, I am also looking for an answer to this.