2012

Community Detection in the Labelled Stochastic Block Model

Heimlicher, Simon, Lelarge, Marc, Massoulié, Laurent

Understand

We consider the problem of community detection from observed interactions between individuals, in the context where multiple types of interaction are possible.

  • We use labelled stochastic block models to represent the observed data, where labels correspond to interaction types.
  • Focusing on a two-community scenario, we conjecture a threshold for the problem of reconstructing the hidden communities in a way that is correlated with the true partition.
  • To substantiate the conjecture, we prove that the given threshold correctly identifies a transition on the behaviour of belief propagation from insensitive to sensitive.

Built on

  • Uniform convergence of martingales in the branching random walk

    J. D. Biggins · 1992

    Earlier work this paper cites.

  • Random walk in a random environment and first-passage percolation on trees

    Original

    Russell Lyons and Robin Pemantle · 1992

    Earlier work this paper cites.

  • Broadcasting on trees and the Ising model

    William Evans, Claire Kenyon, Yuval Peres, and Leonard J. Schulman · 2000

    Earlier work this paper cites.

  • Spectral partitioning of ranodm graphs

    F. McSherry · 2001

    Earlier work this paper cites.

Similar

  • Robust reconstruction on trees is determined by the second eigenvalue

    S. Janson and E. Mossel · 2004

    Cited alongside, same era.

  • Survey: information flow on trees

    Elchanan Mossel · 2004

    Cited alongside, same era.

  • Reconstruction for models on random graphs

    A. Gerschenfeld and A. Monatanari · 2007

    Cited alongside, same era.

  • Graph partitioning via adaptive specral techniques

    A. Coja-Oghlan · 2010

    Cited alongside, same era.

  • Probability on Trees and Networks

    Russel Lyons and Yuval Peres

    Cited in the paper.

Then

  • Asymptotic analysis of the stochastic block model for modular networks and its algorithmic applications

    Aurelien Decelle, Florent Krzakala, Cristopher Moore, and Lenka Zdeborová · 2011

    Later among the works it cites.

  • Spectral Clustering and the High-Dimensional Stochastic Blockmodel

    Karl Rohe, Sourav Chatterjee, and Bin Yu · 2011

    Later among the works it cites.

  • Stochastic Block Models and Reconstruction, February 2012, arXiv:1202.1499

    Original

    Elchanan Mossel, Joe Neeman, and Allan Sly · 2012

    Closest in time.

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