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Robust and Generalizable Visual Representation Learning via Random Convolutions

ICLR 2021 · Label-efficient and robust learning › Domain adaptation and generalization · approach: Augmentation and mixture-of-experts generalization · 16 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use multi-scale random convolutions to augment training imagesCNN digit classifier · MNIST-Maccuracy: 67.94 -> 87.76Helped
Use random-convolution augmentationCNN digit classifier · MNIST-Caccuracy: 88.20 (2.10) -> 91.62 (0.77)Helped
Use multi-scale random-convolution mixingAlexNet Deep-All · PACS Sketchaccuracy: 55.28 (4.71) -> 69.74 (0.66)Helped
Use random-convolution image augmentation with consistency lossAlexNet · ImageNet-SketchTop1 accuracy: 10.28 -> 18.09Helped
Pretrain on ImageNet with RandConv and fine-tune on PACS with RandConvAlexNet · PACS Sketchaccuracy: 71.74 (0.43) -> 76.11 (0.43)Helped
Pretrain on ImageNet with RandConvAlexNet Deep-All fine-tuned on PACS · PACS Photoaccuracy: 86.77 (0.42) -> 84.48 (0.52)Hurt
Combine RandConv mixing with MultiAugCNN digit classifier · MNIST-Caccuracy: 91.62 (0.77) -> 91.40 (0.93)Hurt
Increase maximum filter size from 1 to 7 (ablation)RC_mix · MNIST digits DG-Avgaccuracy: 69.26 (1.35) -> 71.19 (1.21)Helped
Increase maximum filter size from 1 to 7 (ablation)RC_img, p=0.5 · MNIST digits DG-Avgaccuracy: 70.55 (0.15) -> 71.34 (0.61)Helped
Set original-image fraction p to 0.5 rather than p=0 (ablation)RC_img with size-1 filters · MNIST digits DG-Avgaccuracy: 69.32 (1.19) -> 70.63 (0.42)Helped
Add consistency loss with λ=10 (ablation)RC_mix 1–7 · MNIST digits DG-Avgaccuracy: 71.19 (1.21) -> 72.88 (0.58)Helped
Add consistency loss with λ=10 (ablation)RC_img 1–7, p=0.5 · MNIST digits DG-Avgaccuracy: 71.34 (0.61) -> 72.02 (1.15)Helped

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