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Conservative SPDEs as fluctuating mean field limits of stochastic gradient descent. (arXiv:2207.05705v1 [math.PR])
July 13, 2022, 1:11 a.m. | Benjamin Gess, Rishabh S. Gvalani, Vitalii Konarovskyi
cs.LG updates on arXiv.org arxiv.org
The convergence of stochastic interacting particle systems in the mean-field
limit to solutions to conservative stochastic partial differential equations is
shown, with optimal rate of convergence. As a second main result, a
quantitative central limit theorem for such SPDEs is derived, again with
optimal rate of convergence.
The results apply in particular to the convergence in the mean-field scaling
of stochastic gradient descent dynamics in overparametrized, shallow neural
networks to solutions to SPDEs. It is shown that the inclusion of …
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