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Multi-Label Learning From Single Positive Labels

CVPR 2021 · Label-efficient and robust learning › Recognition and long-tail · approach: Partial and multi-label learning · 109 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use ROLE to estimate unobserved labels online under an expected-positive constraint instead of AN-LSSingle-positive linear classifier · VOC12 testMAP: 85.3 -> 86.5Helped
Use ROLE to estimate unobserved labels online under an expected-positive constraint instead of AN-LSSingle-positive linear classifier · COCO testMAP: 64.8 -> 66.3Helped
Use ROLE to estimate unobserved labels online under an expected-positive constraint instead of AN-LSSingle-positive linear classifier · NUS testMAP: 48.5 -> 49.5Helped
Use ROLE to estimate unobserved labels online under an expected-positive constraint instead of AN-LSSingle-positive linear classifier · CUB testMAP: 15.4 -> 16.2Hurt
Add label smoothing to assume-negative training (ablation)Single-positive multi-label classifier · Most reported test settingsMAPHelped
Add expected-positive regularization alone (ablation)Single-positive classifier · VOC12, COCO, NUS testMAPHurt
Add expected-positive regularization alone (ablation)Single-positive classifier · CUB testMAP: 17.2 -> 18.0 (linear); 19.1 -> 20.0 (fine-tuned)Helped
Add online label estimation and expected-positive constraints together (ROLE) rather than expected-positive regularization alone (ablation)Single-positive classifier · Linear test: VOC12, COCO, NUS; fine-tuned test: VOC12MAP: 83.8 -> 86.5; 62.6 -> 66.3; 46.4 -> 49.5; 85.5 -> 87.9Helped
Add linear-training initialization before end-to-end fine-tuning (ablation)ROLE · VOC12, COCO, NUS, CUB testMAP: 87.9 -> 88.2; 66.3 -> 69.0; 43.1 -> 51.0; 15.0 -> 16.8Mixed
Add linear-training initialization before end-to-end fine-tuning (ablation)AN-LS · VOC12, COCO, NUS, CUB testMAP: 86.7 -> 86.5; 66.9 -> 69.2; 44.9 -> 50.5; 17.9 -> 16.6Mixed
Apply negative-only asymmetric label smoothing instead of symmetric AN-LS (ablation)Single-positive fine-tuned classifier · VOC12 and COCO testMAP: +1.0 MAP for VOC12, +0.7 MAP for COCOHelped
Apply negative-only asymmetric label smoothing instead of symmetric AN-LS (ablation)Single-positive linear classifier · VOC12 and COCO testMAP: -0.3 MAP for VOC12, -0.4 MAP for COCOHurt

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