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Neural Architecture Search With Random Labels

CVPR 2021 · Architectures and efficiency › Neural architecture search · approach: Bi-level differentiable NAS · 49 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use random labels and angle-based fitness instead of ground-truth labels and validation accuracyNAS-Bench-201 search · ImageNet16-120test accuracy: 40.80 -> 43.70Helped
Use angle fitness rather than validation-accuracy fitness with random-label training (ablation)NAS-Bench-201 search · CIFAR-10test accuracy: 80.60 -> 93.45Helped
Use angle fitness rather than validation-accuracy fitness with random-label training (ablation)NAS-Bench-201 search · CIFAR-100test accuracy: 52.84 -> 70.71Helped
Use angle fitness rather than validation-accuracy fitness with random-label training (ablation)NAS-Bench-201 search · ImageNet16-120test accuracy: 28.37 -> 43.70Helped
Shuffle ground-truth labels once before training rather than uniformly sample fixed random labels (ablation)RLNAS · ImageNet16-120test accuracy: 43.70±1.25 -> 43.81±1.12No clear effect
Resample random labels in each iteration rather than assign fixed random labels once (ablation)RLNAS · ImageNet16-120test accuracy: 43.70±1.25 -> 27.51±1.04Hurt
Shuffle ground-truth labels in every training iteration rather than assign fixed random labels once (ablation)RLNAS · CIFAR-100test accuracy: 70.71±0.36 -> 61.59±6.57Hurt
Search the DARTS architecture directly on ImageNet rather than search on CIFAR-10 and transferRLNAS · ImageNetTop-1 accuracy: 75.6 -> 75.9Helped
Search with random labels rather than UnNAS jigsaw pretext labelsDARTS search space · ImageNetTop-1 accuracy: 76.2 -> 76.7Helped

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