1 code implementation • 5 Sep 2023 • Zachary Frangella, Pratik Rathore, Shipu Zhao, Madeleine Udell
This paper introduces PROMISE ($\textbf{Pr}$econditioned Stochastic $\textbf{O}$ptimization $\textbf{M}$ethods by $\textbf{I}$ncorporating $\textbf{S}$calable Curvature $\textbf{E}$stimates), a suite of sketching-based preconditioned stochastic gradient algorithms for solving large-scale convex optimization problems arising in machine learning.
1 code implementation • 16 Nov 2022 • Zachary Frangella, Pratik Rathore, Shipu Zhao, Madeleine Udell
Numerical experiments on both ridge and logistic regression problems with dense and sparse data, show that SketchySGD equipped with its default hyperparameters can achieve comparable or better results than popular stochastic gradient methods, even when they have been tuned to yield their best performance.
no code implementations • 28 Feb 2020 • Shipu Zhao, Fengqi You
A novel generative adversarial network (GAN) based data-driven distributionally robust chance constrained programming framework is proposed.