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When, Why, and Which Pretrained GANs Are Useful?

ICLR 2022 · Label-efficient and robust learning › Recognition and long-tail · approach: Data augmentation and generalization bias · 5 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Initialize transfer from a pretrained checkpoint rather than random weightsStyleGAN2 · FlowersFID: 10.73 -> 8.31Helped
Initialize transfer from a pretrained checkpoint rather than random weightsStyleGAN2 · Satellite-LandscapesFID: 26.6 -> 21.0Helped
Choose a diverse Imagenet source instead of random initializationStyleGAN2 · CIFAR-10FID: 9.33 -> 6.2Helped
Choose a suitable pretrained source for the target rather than random initializationStyleGAN2 · SimpsonsFID: 8.42 -> 7.87Helped
Use a source checkpoint that passed two times fewer training steps instead of a converged checkpoint (ablation)StyleGAN2 transferred to Flowers from Imagenet · FlowersFID: 8.31 -> 8.54Hurt
Use a source checkpoint that passed two times fewer training steps instead of a converged checkpoint (ablation)StyleGAN2 transferred to Flowers from FFHQ · FlowersFID: 9.47 -> 9.5No clear effect
Initialize both generator and discriminator from suitable pretrained checkpoints rather than initializing only one or neither (ablation)GAN finetuning · Ten-Gaussian synthetic targetWasserstein-1 distanceHelped
Select a checkpoint using Recall rather than PrecisionGAN transfer checkpoint selection · Target datasetsBest-source identification failures: 2 vs 11Helped

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