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

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Decelle, Aurelien, Krzakala, Florent, Moore, Cristopher, Zdeborová, Lenka·2011·Physical Review E

Abstract

In this paper we extend our previous work on the stochastic block model, a commonly used generative model for social and biological networks, and the problem of inferring functional groups or communities from the topology of the network. We use the cavity method of statistical physics to obtain an asymptotically exact analysis of the phase diagram. We describe in detail properties of the detectability-undetectability phase transition and the easy-hard phase transition for the community detection problem. Our analysis translates naturally into a belief propagation algorithm for inferring the group memberships of the nodes in an optimal way, i.e., that maximizes the overlap with the underlying group memberships, and learning the underlying parameters of the block model. Finally, we apply the algorithm to two examples of real-world networks and discuss its performance.

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Metadata

Authors
Decelle, A., Krzakala, F., Moore, C., & Zdeborová, L.
Venue
Physical Review E
Published
2011-12-12
Volume
84
Issue
6
Pages
066106-066106
ISSN
  • 1539-3755 (ISSN-L)
  • 1550-2376
OpenAlex
W2004531067
Cited by
747
References
6
FWCI
17.18
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Asymptotic analysis of the stochastic block model for modular networks and its algorithmic applications. https://app.cochat.ai/papers/10.1103/physreve.84.066106
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Decelle, A., Krzakala, F., Moore, C., & Zdeborová, L. (2011). Asymptotic analysis of the stochastic block model for modular networks and its algorithmic applications. Physical Review E. https://doi.org/10.1103/physreve.84.066106

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.