2009

A Walk in Facebook: Uniform Sampling of Users in Online Social Networks

Gjoka, Minas, Kurant, Maciej, Butts, Carter T. et al.

Understand

Our goal in this paper is to develop a practical framework for obtaining a uniform sample of users in an online social network (OSN) by crawling its social graph.

  • Such a sample allows to estimate any user property and some topological properties as well.
  • To this end, first, we consider and compare several candidate crawling techniques.
  • Two approaches that can produce approximately uniform samples are the Metropolis-Hasting random walk (MHRW) and a re-weighted random walk (RWRW).

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