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How Much Data Are Augmentations Worth? An Investigation into Scaling Laws, Invariance, and Implicit Regularization

ICLR 2023 · Label-efficient and robust learning › Recognition and long-tail · approach: Data augmentation and generalization bias · 12 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
diverse but inconsistent augmentation (TrivialAug) vs consistent flips at small sizes (ablation)TrivialAug vs horizontal flips · CINIC-10 in-domain, 48000 base samplesexchange rateMixed
adding random crops to flips (Flips&Crops) vs flips alone (ablation)ResNet-18 · CINIC-10 in-domainexchange rate: 2.94 vs 1.79 at 4xHelped
TrivialAug augmentation evaluated on CIFAR-10-C (out-of-domain) vs in-domainTrivialAug&Flips&Crops · CIFAR-10-Cexchange rateHelped
horizontal flips as augmentation at larger repetition counts on CIFAR-10-C (ablation)Horiz. Flips · CIFAR-10-Cexchange rate: 0.84 at 1x down to 0.52 at 32xHurt
invariant architectures (flip-invariant, E2CNN) vs random flip augmentation at small/medium sizesResNet-18 invariant architectures · CINIC-10 / CIFAR-10 rotated invariance experimentstest accuracyHurt
random augmentation applied per batch (vs same-batch or fixed views) for flips and crops (ablation)Flips & Crops ResNet-18 · CIFAR-10 end-of-training gradient std and flatnessgradient std / flatness: Grad std 24.7397 random vs 10.263 fixed views+same batchHelped
random augmentation sampling vs no augmentation (ablation)ResNet-18 with TrivialAug&Flips&Crops · CIFAR-10 flatnessflatness: Flatness 20.1336 vs 11.4192 no augmentationHelped

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