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07/10/2023
Generalization Error of First-Order Methods for Statistical Learning with Generic Oracles
In this paper, we provide a novel framework for the analysis of generali...
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01/30/2023
Breadth-First Depth-Next: Optimal Collaborative Exploration of Trees with Low Diameter
We consider the problem of collaborative tree exploration posed by Fraig...
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09/27/2022
Statistical limits of correlation detection in trees
In this paper we address the problem of testing whether two observed tre...
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06/10/2022
Muffliato: Peer-to-Peer Privacy Amplification for Decentralized Optimization and Averaging
Decentralized optimization is increasingly popular in machine learning f...
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07/15/2021
Correlation detection in trees for partial graph alignment
Motivated by alignment of correlated sparse random graphs, we study a hy...
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06/10/2021
A Continuized View on Nesterov Acceleration for Stochastic Gradient Descent and Randomized Gossip
We introduce the continuized Nesterov acceleration, a close variant of N...
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06/07/2021
Decentralized Optimization with Heterogeneous Delays: a Continuous-Time Approach
In decentralized optimization, nodes of a communication network privatel...
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02/04/2021
Concentration of Non-Isotropic Random Tensors with Applications to Learning and Empirical Risk Minimization
Dimension is an inherent bottleneck to some modern learning tasks, where...
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02/04/2021
Impossibility of Partial Recovery in the Graph Alignment Problem
Random graph alignment refers to recovering the underlying vertex corres...
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11/04/2020
Asynchrony and Acceleration in Gossip Algorithms
This paper considers the minimization of a sum of smooth and strongly co...
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07/01/2020
Partial Recovery in the Graph Alignment Problem
In this paper, we consider the graph alignment problem, which is the pro...
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06/25/2020
Dual-Free Stochastic Decentralized Optimization with Variance Reduction
We consider the problem of training machine learning models on distribut...
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05/28/2020
Understanding and monitoring the local progression of the Covid-19 epidemic from medical emergency calls: the example of the Paris area
We portray the evolution of the Covid-19 epidemic during the crisis of M...
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05/28/2020
Forecasting the local progression of the Covid-19 epidemic from medical emergency calls: the example of the Paris area
We portray the evolution of the Covid-19 epidemic during the crisis of M...
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05/20/2020
An Optimal Algorithm for Decentralized Finite Sum Optimization
Modern large-scale finite-sum optimization relies on two key aspects: di...
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02/25/2020
Statistically Preconditioned Accelerated Gradient Method for Distributed Optimization
We consider the setting of distributed empirical risk minimization where...
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02/04/2020
From tree matching to sparse graph alignment
In this paper we consider alignment of sparse graphs, for which we intro...
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05/27/2019
An Accelerated Decentralized Stochastic Proximal Algorithm for Finite Sums
Modern large-scale finite-sum optimization relies on two key aspects: di...
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01/28/2019
Asynchronous Accelerated Proximal Stochastic Gradient for Strongly Convex Distributed Finite Sums
In this work, we study the problem of minimizing the sum of strongly con...
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11/14/2018
Robustness of spectral methods for community detection
The present work is concerned with community detection. Specifically, we...
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10/05/2018
Accelerated Decentralized Optimization with Local Updates for Smooth and Strongly Convex Objectives
In this paper, we study the problem of minimizing a sum of smooth and st...
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06/20/2018
Efficient inference in stochastic block models with vertex labels
We study the stochastic block model with two communities where vertices ...
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03/02/2017
Adaptive Matching for Expert Systems with Uncertain Task Types
Online two-sided matching markets such as Q&A forums (e.g. StackOverflow...
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02/28/2017
Optimal algorithms for smooth and strongly convex distributed optimization in networks
In this paper, we determine the optimal convergence rates for strongly c...
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09/08/2016
Non-Backtracking Spectrum of Degree-Corrected Stochastic Block Models
Motivated by community detection, we characterise the spectrum of the no...
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11/02/2015
An Impossibility Result for Reconstruction in a Degree-Corrected Planted-Partition Model
We consider a Degree-Corrected Planted-Partition model: a random graph o...
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06/29/2015
A spectral method for community detection in moderately-sparse degree-corrected stochastic block models
We consider community detection in Degree-Corrected Stochastic Block Mod...
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02/16/2015
Clustering and Inference From Pairwise Comparisons
Given a set of pairwise comparisons, the classical ranking problem compu...
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02/11/2015
Reconstruction in the Labeled Stochastic Block Model
The labeled stochastic block model is a random graph model representing ...
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06/26/2014
Edge Label Inference in Generalized Stochastic Block Models: from Spectral Theory to Impossibility Results
The classical setting of community detection consists of networks exhibi...
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06/18/2012
Comparison-Based Learning with Rank Nets
We consider the problem of search through comparisons, where a user is p...
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07/15/2011
