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b-DARTS: Beta-Decay Regularization for Differentiable Architecture Search

CVPR 2022 · Architectures and efficiency › Neural architecture search · approach: Bi-level differentiable NAS · 112 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Add Beta-Decay regularization to DARTSDARTS on NAS-Bench-201 · CIFAR-10, CIFAR-100, and ImageNet16-120 testaccuracy: 93.80±0.40 -> 94.36±0.00; 71.53±1.51 -> 73.51±0.00; 45.12±0.82 -> 46.34±0.00Helped
Search on CIFAR-10 using Beta-Decay regularization, then transfer the architectureDARTS on NAS-Bench-201 · CIFAR-100 testaccuracy: 83.76±0.22Helped
Use Beta-Global loss instead of the local Beta-Decay loss (ablation)β-DARTS · NAS-Bench-201 CIFAR-10 testaccuracy: 93.83/94.36No clear effect
Use Beta-Zero loss instead of Beta-Decay (ablation)β-DARTS · NAS-Bench-201 CIFAR-100 testaccuracy: 73.51/71.88Hurt
Increase the regularization coefficient linearly (ablation)β-DARTS · CIFAR-10accuracy: 93.83/94.36/94.36/94.36Helped
Use constant rather than linearly increased regularization weights (ablation)β-DARTS · CIFAR-10accuracy: 88.02/93.31/94.36/93.31Mixed
Use linearly decreasing rather than linearly increased regularization weights (ablation)β-DARTS · CIFAR-10accuracy: 93.31/90.65/76.88/54.30Hurt
Regularize architecture parameters α with L2 or weight decay instead of regularizing activated parameters β (ablation)DARTS · DARTS searchsearch robustnessHurt

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