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Classification-Reconstruction Learning for Open-Set Recognition

CVPR 2019 · Label-efficient and robust learning › Recognition and long-tail · approach: Learning from unlabeled and positive-unlabeled data · 473 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
use classification-reconstruction learning and the joint prediction-plus-latent representation for detectionCROSR with Plain CNN · CIFAR-10, ImageNet-crop; ImageNet-resize; LSUN-crop; LSUN-resizeopen-set score: 0.660 -> 0.721; 0.684 -> 0.735; 0.657 -> 0.720; 0.668 -> 0.749Helped
use classification-reconstruction learning with latent representationsCROSR · DBpedia, 4/14; 4/12; 4/8F1-score: 0.532 -> 0.582; 0.574 -> 0.627; 0.729 -> 0.765Helped
use CROSR instead of CounterfactualCROSR · SVHNAUC: 0.910 $\pm$ 0.010 -> 0.899 $\pm$ 0.018Hurt
use CROSR instead of CounterfactualCROSR · MNIST and TinyImageNetAUC: 0.988 $\pm$ 0.004 -> 0.991 $\pm$ 0.004; 0.586 -> 0.589Helped
add reconstruction-loss regularization (ablation)LadderNet · MNIST-vs-Omniglot and MNIST-vs-MNIST-NoiseF1-score: 8.4%; 10.1%Helped
add only the reconstruction-error term without explicitly using reconstructive factors (ablation)natural-image open-set classifiers · CIFAR-10open-set performanceNo clear effect
replace the ℓ² distance detector with OCSVM (ablation)DHRNet · MNIST, OmniglotF1-score: 0.793 -> 0.702Hurt
replace the ℓ² distance detector with OCSVM (ablation)DHRNet · MNIST, Noise and MNIST-noiseF1-score: 0.826 -> 0.979; 0.827 -> 0.976Helped

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