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					$G = (V,E)$

where G is a graph, and V and E indicate vertices and edges respectively.

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Why is Social Network Analysis (SNA) important?

• Networks link micro-level behaviours to emergent macro-level outcomes (see “Coleman’s boat”).
• Analysis of individuals in their social context
• understanding phenomena such as diffusion, imitation, collective action, etc.

Social Network Terms

• Network / Graph
• Tie / Edge / Arc
• Node / Vertex
• Cluster, Groups, Communities
• homogenous vs heterogenous
• Edge direction
• Edge weight
• Edge value
• Bipartite graph / Two-mode network

<aside> 📌 Adamic and Glance’s (2005) visualisation of Democrat and Republican blogs during the 2004 US election.

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