Editing Network Science (section)

== <span style="color: #FFFFFF;">Analyzing</span> ==
{| class="wikitable"
|+ Random vs. Scale-Free Networks
! Feature !! Random Network (Road Map) !! Scale-Free Network (Internet)
|-
| Connectivity || Most nodes have the same number of links || Most have few; a few have thousands (Hubs)
|-
| Robustness || Weak (lose a few roads, city is isolated) || Strong (can lose many sites, still works)
|-
| Attack Vulnerability || Low (no 'vital' point) || High (killing the 'Hub' kills the system)
|-
| Growth Rule || Fixed or random || 'The Rich get Richer' (Preferential Attachment)
|}

'''The Concept of "Betweenness Centrality"''': This measures how many "Shortest Paths" pass through a specific node. A person with high betweenness is a "Gatekeeper." Even if they don't have many friends, they are the only "Bridge" between two different worlds. Analyzing these "Bridges" is the key to understanding how rumors spread or how trade works.
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