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A Social Network Model

  • Cliques, hubs and outliers
    • Individuals in a tight social group, or clique, know many of the same people, regardless of the size of the group
    • Individuals who are hubs know many people in different groups but belong to no single group. Politicians, for example bridge multiple groups
    • Individuals who are outliers reside at the margins of society. Hermits, for example, know few people and belong to no group
  • The Neighborhood of a Vertex
    • Define Γ(v) as the immediate neighborhood of a vertex (i.e. the set of people that an individual knows )

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