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Group Sparsity: The Hinge Between Filter Pruning and Decomposition for Network Compression

CVPR 2020 · Architectures and efficiency › Pruning and efficient tuning · approach: Sparse training from scratch · 212 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use Hinge compression instead of KSE at the 50% FLOP operating pointResNet-56 · CIFAR10Top-1 error: 6.77 -> 6.31Helped
Use Hinge compression instead of KSE at the 24% FLOP operating pointResNet-56 · CIFAR10Top-1 error: 8.00 -> 7.35Helped
Use Hinge compression instead of SSSResNet-20 · CIFAR10Top-1 error: 9.15 -> 8.16Helped
Use Hinge compression instead of SSSResNet-164 · CIFAR10Top-1 error: 5.78 -> 5.4Helped
Use Hinge compression instead of SSSResNeXt-20 · CIFAR100Top-1 error: 30.60 -> 28.74Helped
Use Hinge compression instead of SSSResNeXt-164 · CIFAR100Top-1 error: 26.71 -> 22.56Helped
Add regularization factor annealing during compression (ablation)Hinge on WRN · CIFAR100Top-1 error: 23.61 -> 21.79; 23.13 -> 22.06Helped
Replace ℓ1 with ℓ1/2 regularization (ablation)Hinge on ResNet-56 · CIFAR10Top-1 error: 6.53 -> 6.31Helped
Replace ℓ1 with ℓ1-2 regularization (ablation)Hinge on ResNet-56 · CIFAR10Top-1 error: 6.53 -> 6.56Hurt
Replace ℓ1 with logsum regularization (ablation)Hinge on ResNet-56 · CIFAR10Top-1 error: 6.53 -> 6.53No clear effect
Set threshold T to 0.005 and α to 0.01 (ablation)Hinge with ℓ1 regularization on ResNet-56 · CIFAR10Top-1 error: 6.53 -> 6.37Helped
Use Hinge instead of FPGMResNet50 · ImageNet2012Top-1 error: 25.17 -> 25.30Hurt

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