Community detection with the non-backtracking operator

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Event details

Date 08.05.2015
Hour 14:0015:00
Speaker Dr. Marc Lelarge
Location
Category Conferences - Seminars
Community detection consists in identification of groups of
similar items within a population. In the context of online social
networks, it is a useful primitive for recommending either contacts or
news items to users. We will consider a particular generative
probabilistic model for the observations, namely the so-called
stochastic block model and prove that the non-backtracking operator
provides a significant improvement when used for spectral clustering.
joint work with C. Bordenave and L. Massoulie.

Practical information

  • Informed public
  • Free

Organizer

  • IPG Seminar
    Host : LTHI Olivier Lévêque

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