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math.OC2021★ 5 cited
Stochastic Gradient Descent on Nonconvex Functions with General Noise Models
Vivak Patel, Shushu Zhang
Stochastic Gradient Descent (SGD) is a widely deployed optimization procedure throughout data-driven and simulation-driven disciplines, which has drawn a substantial interest in un…
math.OC2020★ 1 cited
Stochastic Approximation for High-frequency Observations in Data Assimilation
Shushu Zhang, Vivak Patel
With the increasing penetration of high-frequency sensors across a number of biological and physical systems, the abundance of the resulting observations offers opportunities for h…