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Triadic closure

A diagram demonstrating the principle of triadic closure. If A is linked to B, and A is also linked to C, then there is a tendency for B to become linked to C.

Triadic closure is a concept in social network theory, first suggested by German sociologist Georg Simmel in his 1908 book Soziologie [Sociology: Investigations on the Forms of Sociation].[1] Triadic closure is the property among three nodes A, B, and C (representing people, for instance), that if the connections A-B and A-C exist, there is a tendency for the new connection B-C to be formed.[2] Triadic closure can be used to understand and predict the growth of networks, although it is only one of many mechanisms by which new connections are formed in complex networks.[3]

  1. ^ Georg Simmel Archived 2021-10-07 at the Wayback Machine, originator of the concept: "Facebook" article at the New York Times website. Retrieved on December 21, 2007.
  2. ^ Working concept Archived 2018-10-20 at the Wayback Machine of triadic closure: book review of Duncan Watts' "Six Degrees: The Science of a Connected Age" at the Serendip (Bryn Mawr College) website. Retrieved on December 21, 2007.
  3. ^ Easley, David; Kleinberg, Jon (2010). Networks, crowds, and markets: reasoning about a highly connected world. Cambridge: Cambridge University Press. ISBN 978-0-521-19533-1.

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