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Learning Versatile Neural Architectures by Propagating Network Codes

ICLR 2022 · Architectures and efficiency › Neural architecture search · approach: Bi-level differentiable NAS · 8 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Jointly optimize classification and segmentation rather than classification aloneNCP architecture search · ImageNet-50-1000top1: 85.56 -> 86.05Helped
Jointly optimize classification and segmentation rather than segmentation aloneNCP architecture search · CityscapesmIoU: 77.15 -> 77.16No clear effect
Jointly optimize segmentation and video recognitionNCP architecture search · Cityscapes and HMDB51task performanceHurt
Jointly optimize segmentation and 3D detectionNCP architecture search · Cityscapes and KITTItask performance: Cityscapes mIoU: 77.15 -> 75.60; KITTI car-3D: 75.44 -> 75.54Mixed
Initialize segmentation search with a classification architecture instead of searching from scratchNCP architecture transfer · CityscapesmIoU: 77.15 -> 78.27Helped
Jointly optimize architectures for all three ImageNet subsetsNCP architecture search · ImageNet-50-100top1 error: 56.40 -> 58.12Helped
Jointly optimize using predictors for two Cityscapes input resolutions (ablation)NCP architecture search · Cityscapes validation, 128 × 512mIoU: 65.89 -> 64.98Hurt
Use continuous propagation instead of winner-takes-all propagation (ablation)NCP-Net-M · Cityscapes validationmIoU: 77.91 -> 78.36Helped
Increase the compute-budget setting from M to L (ablation)NCP-Net continuous propagation · Cityscapes validationmIoU: 78.36 -> 80.05Helped
Optimize video architecture using both scratch and pretrained predictors (ablation)NCP architecture search · HMDB51, Video-Pretrainedtop1: 39.14 -> 40.21Helped
Optimize with both full- and reduced-resolution segmentation predictors (ablation)NCP architecture search · ADE20KmIoU: 33.32 -> 35.65Helped
Optimize with both full- and reduced-resolution segmentation predictors (ablation)NCP architecture search · Cityscapes validation, 512 × 1024mIoU: 77.15 -> 77.35Mixed

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