Graphics Reference
In-Depth Information
Figure 4-5: This network shows the spread of a viral e-mail starting with
John. Statistics help identify some of the key nodes.
High degree people are shown by node size. Vern and Abel distribute
e-mails widely.
Betweenness centrality is represented by text size. John and Drew have
the highest betweenness centrality—and each is at the center of
respective halves of the network.
Closeness centrality is represented by color. The central horizontal
spine—John, Tiny, and Drew—are the deepest blue.
Furthest away is Yuko (purple, far right) as measured by closeness
centrality. Betweenness and degree do not differentiate between leaf
nodes, but closeness does.
• Note that Tiny has only two connections but is in a critical position
joining the two halves of the network.
 
Search WWH ::




Custom Search