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An Improved Analysis of Stochastic Gradient Descent with Momentum

NeurIPS 2020 · Optimization › Optimizers · approach: SGD momentum and step-size schedules · 29 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
use multistage parameters (decreasing stepsize, increasing momentum) instead of fixed momentum 0.9 with the same stepsize schedule (ablation)SGDM · CIFAR-10 ResNet-18training loss / validation accuracyHelped
use multistage stepsizes instead of a fixed large stepsize 0.66 (ablation)SGDM · MNIST logistic regressionfinal training lossHelped
use multistage stepsizes instead of a fixed small stepsize 0.095 (ablation)SGDM · MNIST logistic regressioninitial convergence speedHelped
increase fixed stepsize alpha from 0.1 to 0.5/1.0SGDM · MNIST logistic regressiontraining lossMixed
use momentum 0.9 instead of plain SGD at same stepsizeSGD · MNIST logistic regressiontraining lossNo clear effect

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