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math.OC2021
SAN: Stochastic Average Newton Algorithm for Minimizing Finite Sums
Jiabin Chen, Rui Yuan, Guillaume Garrigos +1
We present a principled approach for designing stochastic Newton methods for solving finite sum optimization problems. Our approach has two steps. First, we re-write the stationari…
math.OC2021
: A Fast sketching based solver for large scale ridge regression
Nidham Gazagnadou, Mark Ibrahim, Robert M. Gower
We propose new variants of the sketch-and-project method for solving large scale ridge regression problems. Firstly, we propose a new momentum alternative and provide a theorem sho…