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Content-Aware GAN Compression

CVPR 2021 · Image generation › GANs · approach: Large-scale GAN latent analysis · 50 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use content-aware pruning and distillation instead of standard ℓ1-out pruning and non-content-aware distillationStyleGAN2 · FFHQ, 256pxFID: 8.9 -> 7.9Helped
Use content-aware pruning and distillation instead of standard ℓ1-out pruning and non-content-aware distillationStyleGAN2 · FFHQ, 1024pxFID: 8.1 -> 7.6Helped
Use content-aware pruning and distillation instead of standard ℓ1-out pruning and non-content-aware distillationSN-GAN · CIFAR-10, 32px, 0.42B FLOPsIS: 8.21±0.11 -> 8.31±0.08Helped
Replace low-activation channel pruning with ℓ1-out pruning (ablation)StyleGAN2 · FFHQ, 256px, 22.3B FLOPsFID: 7.9 -> 5.4Helped
Replace training the pruned network from scratch with ℓ1-out channel pruning (ablation)StyleGAN2 · FFHQ, 256px, 22.3B FLOPsFID: 8.1 -> 5.4Helped
Remove knowledge distillation (ablation)StyleGAN2 compressed with ℓ1-out pruning · FFHQ, 256px, 1.9B FLOPsFID: 12.5 -> 15.1Hurt
Add output-only norm-based distillation to LPIPS perceptual distillation (ablation)StyleGAN2 compressed with ℓ1-out pruning · FFHQ, 256px, 1.9B FLOPsFID: 13.6 -> 12.5Helped
Replace output-only norm-based distillation with intermediate norm-based distillation while retaining LPIPS (ablation)StyleGAN2 compressed with ℓ1-out pruning · FFHQ, 256px, 1.9B FLOPsFID: 12.5 -> 13.6Hurt
Replace VGG style-transfer loss with LPIPS perceptual distillation (ablation)StyleGAN2 compressed with ℓ1-out pruning · FFHQ, 256px, 1.9B FLOPsFID: 14.6 -> 13.6Helped
Use content-aware distillation rather than distilling over all spatial locations (ablation)StyleGAN2 · FFHQFID: nullHelped
Set the pruning content of interest to the image background rather than the foreground face (ablation)StyleGAN2 · FFHQ, 256pximage quality: nullHurt
Increase the content-aware distillation weights beyond λ=γ=3 (ablation)StyleGAN2 compressed with content-aware distillation · FFHQ, 256px, 11× accelerationFID: nullHurt

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