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Intraclass clustering: an implicit learning ability that regularizes DNNs

ICLR 2021 · Label-efficient and robust learning › Recognition and long-tail · approach: Contrastive representation theory · 2 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use intraclass-clustering measures instead of sharpness measures to estimate generalizationWide ResNet on CIFAR100 superclasses · CIFAR100 superclassesgranulated Kendall coefficient: 0.73 vs 0.47Helped
Use the neuron-variance measure c3 instead of sharpness measuresWide ResNet · CIFAR100granulated Kendall coefficient: 0.82 vs 0.48Helped
Use the neuron-variance measure c3 instead of sharpness measuresVGG · CIFAR10granulated Kendall coefficient: 0.84 vs 0.68Helped
Vary the top-k neuron count in c1 and c3 (ablation)Neuron-level intraclass-clustering measures · CIFAR100granulated Kendall coefficient: above 0.7 for any k in the range [1,900]No clear effect
Use a single neuron per subclass for c1 (ablation)Wide ResNet · CIFAR100 superclassesgranulated Kendall coefficient: 0.69Helped
Use a single neuron per class for c3 (ablation)VGG · CIFAR10granulated Kendall coefficient: 0.78Helped
Train with data augmentation rather than without itWide ResNet and VGG models · CIFAR classification datasetsrelationship between intraclass clustering and generalizationHelped

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