[graph-tool] [Centrality Measures]

Tiago de Paula Peixoto tiago at skewed.de
Mon Feb 20 19:48:18 CET 2017


On 20.02.2017 18:14, Thais GOMES ALMEIDA wrote:
> Hi Tiago,
> 
> 
> I'm working with some centrality measures provide by graph_tool and I have
> some questions:
> 
> *Does the 'trust_map' parameter of the eigentrust centrality function refer
> to the edges' weight?*
> In the example present in the docs, it was used the edges' weight as value
> to 'trust_map', but in the parameters' description was said that this
> parameter refers to 'Edge property map with the values of trust associated
> with each edge. The values must lie in the range [0,1]."

The "edge weight" is synonymous with "edge trust" in this algorithm.

> *Why are my values of authority and hub centrality equal?*
> I'm getting the same values for authority and hub centrality.
> ex:
> v_id            hub                    authority
> 1,     0.401326450573,  0.401326450573
> 2,     0.614525497348,    0.614525497348
> ...

How I am supposed to know, without looking at your graph? Is your graph even
directed?


Best,
Tiago

-- 
Tiago de Paula Peixoto <tiago at skewed.de>

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