Vértices importantes e influentes

Network Analysis in R

James Curley

Associate Professor, University of Texas at Austin

Medidas de importância do vértice

  • grau

  • intermediação

  • centralidade do autovetor

  • centralidade de proximidade

  • centralidade pagerank

Network Analysis in R

Grau de saída e de entrada

degree(g, mode = c("out"))
A B C D E F G H I J K L
1 1 1 1 1 3 0 1 1 1 1 1
Network Analysis in R

Intermediação

I para H:

I -> F -> E -> H
I -> F -> A -> E -> H

K para E:

K -> D -> A -> E

B para G:

B -> A -> E -> H -> F -> G
Network Analysis in R

Intermediação

betweenness(g, directed = TRUE)
 A  B  C  D  E  F  G  H  I  J  K  L 
24  0  5 10 23 16  0 17  0  0  0  0
betweenness(g, directed = TRUE, 
             normalized = TRUE)
   A    B    C    D    E    F   
0.22 0.00 0.05 0.09 0.21 0.15 
   G    H    I    J    K    L
0.00 0.15 0.00 0.00 0.00 0.00
Network Analysis in R

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Network Analysis in R

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