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François Chalus

2 accepted papers

2019

Leader Stochastic Gradient Descent for Distributed Training of Deep Learning Models

NeurIPS 2019poster

We consider distributed optimization under communication constraints for training deep learning models. We propose a new algorithm, whose parameter updates rely on two forces: a regular gradient step, and a corrective direction dictated by the currently best-performing worker (leader). Our method di…

Cited by 17SourcePDFScholar
2018

Geometrically Coupled Monte Carlo Sampling

NeurIPS 2018spotlight

Monte Carlo sampling in high-dimensional, low-sample settings is important in many machine learning tasks. We improve current methods for sampling in Euclidean spaces by avoiding independence, and instead consider ways to couple samples. We show fundamental connections to optimal transport theory,…

Cited by 30SourcePDFScholar