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math.PR2021★ 1 cited
An approximation to steady-state of M/Ph/n+M queue
Xinghu Jin, Guodong Pang, Lihu Xu +1
In this paper, we develop a stochastic algorithm based on Euler-Maruyama scheme to approximate the invariant measure of the limiting multidimensional diffusion of the qu…
math.PR2021
Approximation to stochastic variance reduced gradient Langevin dynamics by stochastic delay differential equations
Peng Chen, Jianya Lu, Lihu Xu
We study in this paper a weak approximation to stochastic variance reduced gradient Langevin dynamics by stochastic delay differential equations in Wasserstein-1 distance, and obta…