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Neural Architecture Search as Sparse Supernet

AAAI 2021 · Architectures and efficiency › Neural architecture search · approach: Bi-level differentiable NAS · 17 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use AdamHAPG rather than HAPG for architecture optimizationSparseNAS · CIFAR-10test error (%): 2.73 ± 0.05 -> 2.69 ± 0.03Helped
Search a cherry-picked search spaceSparseNAS + AdamHAPG · CIFAR-10test error (%): 2.69 ± 0.03 -> 2.50Helped
Use AdamHAPG instead of Adam (ablation)SparseNAS · CIFAR-10, α=0.3test error (%): 3.32 -> 3.30No clear effect
Use AdamHAPG instead of Adam (ablation)SparseNAS · CIFAR-10, α=0.5test error (%): 2.93 -> 2.69Helped
Use AdamHAPG instead of Adam (ablation)SparseNAS · CIFAR-10, α=0.7test error (%): 3.93 -> 2.79Helped
Set α to 0.5 rather than 0.3 or 0.7 (ablation)SparseNAS + AdamHAPG · CIFAR-10test error (%): 3.30, 2.69, 2.79Helped
Use a larger λ increase step of 0.03 (ablation)SparseNAS search · CNN cell searchvalid accuracy stabilityHurt
Use smaller λ increase steps of 0.01 or 0.02 (ablation)SparseNAS search · CNN cell searchvalid accuracy stabilityHelped
Use Sparse Group Lasso instead of Lasso or Group Lasso (ablation)HAPG sparse network optimization · DIGITSelement and group sparsityHelped
Use HAPG or AdamHAPG instead of SGD or Adam (ablation)SGL-constrained network pruning · DIGITSstructure compactnessHelped
Use AdamHAPG rather than HAPG for recurrent architecture search (ablation)SparseNAS · PTBsearch training stabilityHelped

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