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Rethinking the Route Towards Weakly Supervised Object Localization

CVPR 2020 · Detection and segmentation › Weakly supervised detection and segmentation · approach: Weakly supervised object localization · 115 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
separate localization training from classification training instead of jointly optimizing both tasks (ablation)PSOL · CUB-200Top-1 Loc: 74.24 -> 74.97Helped
separate localization training from classification training instead of jointly optimizing both tasks (ablation)PSOL · ImageNet-1kTop-1 Loc: 54.48 -> 55.31Helped
use DDT-generated class-agnostic pseudo boxes rather than classification-dependent WSOL localization (ablation)PSOL · CUB-200GT-Known Loc: 59.30 -> 84.55Helped
use class-agnostic DDT-VGG16 localization rather than VGG16 CAM (ablation)ImageNet-1k · Top-1 LocTop-1 Loc: 42.80 -> 47.31Helped
train a localization regressor on pseudo boxes instead of using DDT boxes directlyVGG16 localization · ImageNet-1kTop-1 Loc: 47.31 -> 50.89Helped
use a separate localization model rather than joint classification-localization training (ablation)PSOL-InceptionV3 · CUB-200Top-1 Loc: 60.32 -> 65.51Helped
use a separate localization model rather than joint classification-localization training (ablation)PSOL-ResNet50 · CUB-200Top-1 Loc: 68.17 -> 70.68Helped
use a separate localization model rather than joint classification-localization training (ablation)PSOL-VGG16 · ImageNet-1kTop-1 Loc: 48.83 -> 50.89Helped
use a separate localization model rather than joint classification-localization training (ablation)PSOL-VGG-GAP · ImageNet-1kTop-1 Loc: 47.37 -> 48.36Helped
retain VGG16's original fully connected structure rather than replace it with GAP and one classifier layer (ablation)PSOL separate training · CUB-200Top-1 Loc: 59.29 -> 66.30Helped
transfer the ImageNet-trained localization model to CUB-200 without fine-tuning (ablation)PSOL-DenseNet161-Sep · CUB-200GT-Known Loc: 92.54 -> 92.07No clear effect
combine PSOL-DenseNet161-Sep localization with EfficientNet-B7 classification rather than DPN-131 classificationPSOL-DenseNet161-Sep · ImageNet-1kTop-1 Loc: 56.59 -> 58.00Helped

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