activity
20212024
most citedAn iterative clustering algorithm for the Contextual Stochastic Block Model with optimality guarantees

2 citations · 3 across the 6 of their papers we have counts for

collaborators

6 papers

cs.SI2024

VEC-SBM: Optimal Community Detection with Vectorial Edges Covariates

Guillaume Braun, Masashi Sugiyama

Social networks are often associated with rich side information, such as texts and images. While numerous methods have been developed to identify communities from pairwise interact…

math.ST2023

Strong Consistency Guarantees for Clustering High-Dimensional Bipartite Graphs with the Spectral Method

Guillaume Braun

In this work, we focus on the Bipartite Stochastic Block Model (BiSBM), a popular model for bipartite graphs with a community structure. We consider the high dimensional setting wh…

math.ST2022★ 1 cited

Minimax Optimal Clustering of Bipartite Graphs with a Generalized Power Method

Guillaume Braun, Hemant Tyagi

Clustering bipartite graphs is a fundamental task in network analysis. In the high-dimensional regime where the number of rows and the number of columns of the associat…

math.ST2022

Seeded graph matching for the correlated Gaussian Wigner model via the projected power method

Ernesto Araya, Guillaume Braun, Hemant Tyagi

In the \emph{graph matching} problem we observe two graphs and the goal is to find an assignment (or matching) between their vertices such that some measure of edge agreement…

stat.ML2021★ 2 cited

An iterative clustering algorithm for the Contextual Stochastic Block Model with optimality guarantees

Guillaume Braun, Hemant Tyagi, Christophe Biernacki

Real-world networks often come with side information that can help to improve the performance of network analysis tasks such as clustering. Despite a large number of empirical and…

stat.ML2021

Clustering multilayer graphs with missing nodes

Guillaume Braun, Hemant Tyagi, Christophe Biernacki

Relationship between agents can be conveniently represented by graphs. When these relationships have different modalities, they are better modelled by multilayer graphs where each…