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One-Shot Neural Ensemble Architecture Search by Diversity-Guided Search Space Shrinking

CVPR 2021 · Architectures and efficiency › Neural architecture search · approach: Bi-level differentiable NAS · 30 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
add diversity-guided search space shrinking instead of no shrinking (ablation)NEAS · ImageNetTop-1 accuracy (%): 77.3 -> 77.9Helped
replace accuracy-based shrinking with diversity-score shrinking (ablation)NEAS · ImageNetKendall Tau: 0.42 -> 0.65Helped
replace accuracy-based shrinking with diversity-score shrinking (ablation)NEAS · ImageNetTop-1 accuracy (%): 77.2 -> 77.9Helped
add diversity-guided shrinking rather than no shrinking (ablation)NEAS supernet · ImageNet, supernet-inherited weightsTop-1 accuracy (%): 67.8 -> 68.3Helped
use heterogeneous paths instead of two identical paths (ablation)two-path ensemble · ImageNetTop-1 accuracy (%): 79.4 -> 80.0; 79.6 -> 80.0Helped
add layer sharing (ablation)NEAS ensemble · ImageNetFLOPs (M): 605 -> 574Helped
increase ensemble paths from 2 to 3 (ablation)NEAS · ImageNetTop-1 accuracy (%): 80.0 -> 79.5Hurt
increase ensemble paths from 2 to 5 (ablation)NEAS · ImageNetTop-1 accuracy (%): 80.0 -> 78.5Hurt
search heterogeneous ensemble architectures with NEAS rather than use MobileNetV3COCO backbone · COCO val2017AP (%): 29.9 -> 33.0Helped

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