261 citations · 576 across the 22 of their papers we have counts for
4 papers · 1 filter
Regularized Contextual Bandits
Xavier Fontaine, Quentin Berthet, Vianney Perchet
We consider the stochastic contextual bandit problem with additional regularization. The motivation comes from problems where the policy of the agent must be close to some baseline…
Statistical Windows in Testing for the Initial Distribution of a Reversible Markov Chain
Quentin Berthet, Varun Kanade
We study the problem of hypothesis testing between two discrete distributions, where we only have access to samples after the action of a known reversible Markov chain, playing the…
Unsupervised Alignment of Embeddings with Wasserstein Procrustes
Edouard Grave, Armand Joulin, Quentin Berthet
We consider the task of aligning two sets of points in high dimension, which has many applications in natural language processing and computer vision. As an example, it was recentl…
Optimal link prediction with matrix logistic regression
Nicolai Baldin, Quentin Berthet
We consider the problem of link prediction, based on partial observation of a large network, and on side information associated to its vertices. The generative model is formulated…