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On the rates of convergence of parallelized averaged stochastic gradient algorithms

Authors: Godichon-Baggioni, Antoine; Saadane, Sofiane;

On the rates of convergence of parallelized averaged stochastic gradient algorithms

Abstract

The growing interest for high dimensional and functional data analysis led in the last decade to an important research developing a consequent amount of techniques. Parallelized algorithms, which consist in distributing and treat the data into different machines, for example, are a good answer to deal with large samples taking values in high dimensional spaces. We introduce here a parallelized averaged stochastic gradient algorithm, which enables to treat efficiently and recursively the data, and so, without taking care if the distribution of the data into the machines is uniform. The rate of convergence in quadratic mean as well as the asymptotic normality of the parallelized estimates are given, for strongly and locally strongly convex objectives.

Country
France
Keywords

Asynchronous parallel optimization, Mathematics - Statistics Theory, Statistics Theory (math.ST), 004, 510, [STAT] Statistics [stat], [STAT]Statistics [stat], Averaging, FOS: Mathematics, Distributed estimation, Central Limit Theorem, Stochastic Gradient Descent

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
3
Average
Average
Average
Green
bronze