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Fast and Robust Online Inference with Stochastic Gradient Descent via Random Scaling

AAAI 2022 · Optimization › Optimizers · approach: Stochastic gradient MCMC · 19 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use random scaling instead of batch-means inferenceOnline SGD confidence intervals for logistic regression · Logistic regression d=200, n=100000, γ0=0.5, a=0.505coverage: 0.644 -> 0.919Helped
Use random scaling instead of plug-in inferenceOnline SGD confidence intervals for logistic regression · Logistic regression d=200, n=100000, γ0=0.5, a=0.505computation time (sec.): 955.0 -> 170.3Helped
Use random scaling instead of batch-means inferenceOnline SGD confidence intervals for linear regression · Linear regression d=5, n=100000, γ0=0.5, a=0.505coverage: 0.893 -> 0.957Helped
Increase the learning-rate exponent to a=0.667Random Scale online inference · Linear regression d=5, γ0=0.5, n=100000coverage: 0.957 -> 0.946No clear effect
Increase the learning-rate exponent to a=0.667Batch-mean online inference · Linear regression d=5, γ0=0.5, n=100000coverage: 0.893 -> 0.802Hurt
Increase the dimension to d=200Random Scale online inference · Logistic regression, n=100000, γ0=0.5, a=0.505computation time (sec.): 8.4 -> 170.3Hurt
Update only the target parameter's scaling element rather than the full matrixRandom Scale online inference · Logistic regression d=800, n=10^5, γ0=0.5, a=0.505computation time (sec.): 11.7 seconds at d=800Helped

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