140 citations · 215 across the 18 of their papers we have counts for
9 papers · 1 filter
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…
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…
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…
Fast Computation of Genome-Metagenome Interaction Effects
Florent Guinot, Marie Szafranski, Julien Chiquet +4
Motivation. Association studies have been widely used to search for associations between common genetic variants observations and a given phenotype. However, it is now generally ac…
Eigen-Epistasis for detecting Gene-Gene interactions
Virginie Stanislas, Cyril Dalmasso, Christophe Ambroise
A large amount of research has been devoted to the detection and investigation of epistatic interactions in genome-wide association studies (GWASs). Most of the literature focuses…
Beyond Support in Two-Stage Variable Selection
Jean-Michel Bécu, Yves Grandvalet, Christophe Ambroise +1
Numerous variable selection methods rely on a two-stage procedure, where a sparsity-inducing penalty is used in the first stage to predict the support, which is then conveyed to th…