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BaLeNAS: Differentiable Architecture Search via the Bayesian Learning Rule

CVPR 2022 · Architectures and efficiency › Neural architecture search · approach: Bi-level differentiable NAS · 20 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Model architecture parameters as a Gaussian distribution and optimize it with the Bayesian learning ruleDARTS · NAS-Bench-201test accuracy: DARTS (2nd): 54.30 -> BaLeNAS (2nd): 94.02; 15.61 -> 71.93; 16.32 -> 45.48Helped
Select sampled architectures with training-free Synflow instead of taking argmax of the distribution mean (ablation)BaLeNAS · NAS-Bench-201test accuracy: 94.02 -> 94.33; 71.93 -> 72.95; 45.48 -> 46.54Helped
Increase Synflow-selected architecture sample size from 10 to 50 (ablation)BaLeNAS-TF · NAS-Bench-201test accuracy: 94.08 -> 94.33; 72.55 -> 72.95; 45.82 -> 46.54Helped
Increase Synflow-selected architecture sample size from 50 to 100 (ablation)BaLeNAS-TF · NAS-Bench-201test accuracy: 94.33 -> 94.33; 72.95 -> 72.95; 46.54 -> 46.54No clear effect
Use SNIP rather than Synflow to select sampled architectures (ablation)BaLeNAS-TF · NAS-Bench-201test accuracy: CIFAR-10: 94.02 -> 93.85; CIFAR-100: 71.93 -> 71.48; ImageNet-16-120: 45.48 -> 46.03Mixed
Use GraSP rather than Synflow to select sampled architectures (ablation)BaLeNAS-TF · NAS-Bench-201test accuracy: CIFAR-10: 94.02 -> 93.94; CIFAR-100: 71.93 -> 72.00; ImageNet-16-120: 45.48 -> 44.67Mixed
Increase MCMC sample count from 1 to 3 (ablation)BaLeNAS (2nd) · NAS-Bench-201 CIFAR-10test accuracy: 93.33 -> 94.02Helped
Increase MCMC sample count from 3 to 4 (ablation)BaLeNAS (2nd) · NAS-Bench-201test accuracy: CIFAR-10: 94.02 -> 93.04; CIFAR-100: 71.93 -> 69.20; ImageNet-16-120: 45.48 -> 43.21Hurt
Use BaLeNAS-TF rather than BaLeNAS for architecture selection (ablation)DARTS search space · CIFAR-10 testtest error: 2.50 -> 2.43Helped
Use BaLeNAS-TF rather than BaLeNAS for architecture selection (ablation)DARTS search space · CIFAR-100 testtest error: 16.84 -> 15.72Helped

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