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HRank: Filter Pruning Using High-Rank Feature Map

CVPR 2020 · Architectures and efficiency › Pruning and efficient tuning · approach: Structured network pruning · 888 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Prune filters by low feature-map rankHRank on VGG-16 · CIFAR-10FLOPs reduction: 53.5% vs. 34.3%Helped
Prune filters by low feature-map rankHRank on GoogLeNet · CIFAR-10Top-1 accuracy: 94.07% vs. 92.11%Helped
Prune filters by low feature-map rankHRank on ResNet-56 · CIFAR-10Top-1 accuracy: 93.17% vs. 93.01Helped
Prune filters by low feature-map rankHRank on ResNet-110 · CIFAR-10FLOPs reduction: 58.2% vs. 48.5%Helped
Prune filters by low feature-map rankHRank on DenseNet-40 · CIFAR-10FLOPs reduction: 61.0% vs. 54.7%Helped
Prune filters by low feature-map rankHRank on ResNet-50 · ImageNetTop-1 accuracy: 74.98% vs. 71.95%Helped
Prune filters by low feature-map rankHRank on ResNet-50 · ImageNetTop-5 accuracy: 89.58% vs. 88.30%Helped
Prune filters generating both low- and high-rank maps (Edge variant) (ablation)HRank on ResNet-56 · CIFAR-10Top-1 accuracyHurt
Randomly prune filters instead of selecting by rank (ablation)HRank on ResNet-56 · CIFAR-10Top-1 accuracyHurt
Prune high-rank filters instead of low-rank filters (ablation)HRank on ResNet-56 · CIFAR-10Top-1 accuracyHurt
Freeze 15%-20% of reserved filters during fine-tuning (ablation)HRank on ResNet-56 · CIFAR-10Top-1 accuracy: 93.17% -> 93.13%No clear effect
Freeze 20%-25% of weights during fine-tuning (ablation)HRank on ResNet-56 · CIFAR-10Top-1 accuracy: 93.17% -> 93.01%Hurt

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