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Striking the Right Balance With Uncertainty

CVPR 2019 · Label-efficient and robust learning › Recognition and long-tail · approach: Confidence calibration objectives · 174 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use uncertainty-based margin enforcement instead of standard softmax (ablation)CNN on imbalanced MNIST · MNIST imbalanced splitaccuracy: 97.2 -> 98.3Helped
Add sample-level uncertainty modeling to uncertainty-based margins (ablation)CNN + UMM on imbalanced MNIST · MNIST imbalanced splitaccuracy: 98.3 -> 98.7Helped
Use dropout rate 0.3 rather than 0.5 (ablation)CNN + UMM + SUM · MNIST imbalanced splitaccuracy: 98.7 -> 98.3Hurt
Increase dropout rate from 0.5 to 0.7 (ablation)CNN + UMM + SUM · MNIST imbalanced splitaccuracy: 98.7 -> 98.7No clear effect
Set margin m=2 rather than m=3 (ablation)Proposed method · CIFAR-10 imbalanced splitaccuracy: 80.6% -> 80.2%Hurt
Set margin m=4 rather than m=3 (ablation)Proposed method · CIFAR-10 imbalanced splitaccuracy: 80.6% -> 80.5%Hurt
Use more than N=10 dropout samples for uncertainty estimates (ablation)Proposed method · CIFAR-10 imbalanced splitaccuracy: 80.6% -> 80.6%, 80.7%No clear effect
Incorporate class and sample uncertainty in the classifierThis Paper · CIFAR-10 imbalanced splitF1: 75.0±12.3 -> 80.4±6.3Helped
Use uncertainty estimates to set the margins (ablation)Additive Margin loss on CIFAR-10 · CIFAR-10 imbalanced splitaccuracy: 78.3 -> 78.9Helped
Use uncertainty estimates to set the margins (ablation)Arc Margin loss on CIFAR-10 · CIFAR-10 imbalanced splitaccuracy: 78.1 -> 78.4Helped
Use uncertainty estimates to set the margins (ablation)Large Margin loss on CIFAR-10 · CIFAR-10 imbalanced splitaccuracy: 79.4 -> 79.9Helped
Use uncertainty estimates to set the margins (ablation)Sphere Product loss on CIFAR-10 · CIFAR-10 imbalanced splitaccuracy: 76.2 -> 77.5Helped

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