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Introductory Materials
Slideshow
- A gentle and straight-forward introduction to the major basic concepts of social network analysis with some examples and applications
Video1 & Video 2
- Short videos that introduce the concept of a social network, with several interesting historical examples and motivating cases
Terminology
- Node - Represents an entity (e.g., person)
- Edge - Represents a relationship between two nodes. Can have different weights to represent the strength of the relationship.
- Path/Connector - Indirect relationships between nodes through another node
- Cluster - A group of nodes that has interrelationships.
- Degree - Number of connections (edges) for a node
- Nodes with more degrees have more direct relationships
- Closeness - How close or far a node is to all other nodes
- Betweenness - How often a node is on the shortest path
- Nodes with more betweenness connect clusters
- Centrality - A measure of how many other nodes are related.
