18 citations · 112 across the 31 of their papers we have counts for
4 papers · 1 filter
Convex generalized Fréchet means in a metric tree
Gabriel Romon, Victor-Emmanuel Brunel
We are interested in measures of central tendency for a population on a network, which is modeled by a metric tree. The location parameters that we study are generalized Fréche…
Exponential Smoothing for Off-Policy Learning
Imad Aouali, Victor-Emmanuel Brunel, David Rohde +1
Off-policy learning (OPL) aims at finding improved policies from logged bandit data, often by minimizing the inverse propensity scoring (IPS) estimator of the risk. In this work, w…
Geodesically convex -estimation in metric spaces
Victor-Emmanuel Brunel
We study the asymptotic properties of geodesically convex -estimation on non-linear spaces. Namely, we prove that under very minimal assumptions besides geodesic convexity of th…
Concentration of empirical barycenters in metric spaces
Victor-Emmanuel Brunel, Jordan Serres
Barycenters (aka Fréchet means) were introduced in statistics in the 1940's and popularized in the fields of shape statistics and, later, in optimal transport and matrix analysis.…