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"The Matthew effect in empirical data" by Matjaz Perc: Preferential attachment in network science

  • Preferential attachment in network science is described where the more connected nodes are bound to obtain many more connections in the future than supplemental nodes. Complex Networks have vertices which are elements of the system and edges which represent the interactions between them (Reference 16, Emergence of Scaling in Random Networks). Therefore, the nodes being described vary depending on the system being studied.
  • In preferential attachment, choice is not random but rather linearly biased by the number of links that the pre-existing nodes have with other nodes. This in turn triggers the rich-get-richer effect which and therefore allows the more connected nodes to gain more links at the expense of their less-connected counterparts.
  • In the paper, they review the methodology for measuring preferential attachment in empirical data and discuss observations of the Matthew effect in many areas including in education and brain development.

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Updated 2020-10-25

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Psychology

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Empirical Science

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