activity
20082022
most citedOverlapping stochastic block models with application to the French political blogosphere

140 citations · 215 across the 18 of their papers we have counts for

collaborators

20 papers

stat.ML2022

Inference of Multiscale Gaussian Graphical Model

Do Edmond Sanou, Christophe Ambroise, Geneviève Robin

Gaussian Graphical Models (GGMs) are widely used in high-dimensional data analysis to synthesize the interaction between variables. In many applications, such as genomics or image…

stat.AP2020★ 4 cited

Hierarchical correction of p-values via an ultrametric tree running Ornstein-Uhlenbeck process

Antoine Bichat, Christophe Ambroise, Mahendra Mariadassou

Statistical testing is classically used as an exploratory tool to search for association between a phenotype and many possible explanatory variables. This approach often leads to m…

stat.AP2020

Accounting for missing actors in interaction network inference from abundance data

Raphaëlle Momal, Stéphane Robin, Christophe Ambroise

Network inference aims at unraveling the dependency structure relating jointly observed variables. Graphical models provide a general framework to distinguish between marginal and…

stat.ME2020

High heritability does not imply accurate prediction under the small additive effects hypothesis

Arthur Frouin, Claire Dandine-Roulland, Morgane Pierre-Jean +3

Genome-Wide Association Studies (GWAS) explain only a small fraction of heritability for most complex human phenotypes. Genomic heritability estimates the variance explained by the…

stat.AP2019

Tree-based Inference of Species Interaction Network from Abundance Data

Raphaëlle Momal, Stéphane Robin, Christophe Ambroise

The behavior of ecological systems mainly relies on the interactions between the species it involves. We consider the problem of inferring the species interaction network from abun…

math.ST2019★ 2 cited

Adjacency-constrained hierarchical clustering of a band similarity matrix with application to Genomics

Christophe Ambroise, Alia Dehman, Pierre Neuvial +2

Motivation: Genomic data analyses such as Genome-Wide Association Studies (GWAS) or Hi-C studies are often faced with the problem of partitioning chromosomes into successive region…