2 papers
stat.ML2026
Achieving the Kesten-Stigum bound in the non-uniform hypergraph stochastic block model
Manuel Fernandez, Ludovic Stephan, Yizhe Zhu
We study the community detection problem in the non-uniform hypergraph stochastic block model (HSBM), where hyperedges of varying sizes coexist. This setting captures higher-order…
math.ST2024
Community detection with the Bethe-Hessian
Ludovic Stephan, Yizhe Zhu
The Bethe-Hessian matrix, introduced by Saade, Krzakala, and Zdeborová (2014), is a Hermitian matrix designed for applying spectral clustering algorithms to sparse networks. Rather…