27 citations · 52 across the 6 of their papers we have counts for
3 papers · 2 filters
Accelerating Variance-Reduced Stochastic Gradient Methods
Derek Driggs, Matthias J. Ehrhardt, Carola-Bibiane Schönlieb
Variance reduction is a crucial tool for improving the slow convergence of stochastic gradient descent. Only a few variance-reduced methods, however, have yet been shown to directl…
On Biased Stochastic Gradient Estimation
Derek Driggs, Jingwei Liang, Carola-Bibiane Schönlieb
We present a uniform analysis of biased stochastic gradient methods for minimizing convex, strongly convex, and non-convex composite objectives, and identify settings where bias is…
Tensor Robust Principal Component Analysis: Better recovery with atomic norm regularization
Derek Driggs, Stephen Becker, Jordan Boyd-Graber
This paper studies tensor-based Robust Principal Component Analysis (RPCA) using atomic-norm regularization. Given the superposition of a sparse and a low-rank tensor, we present c…