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Forward Compatible Few-Shot Class-Incremental Learning

CVPR 2022 · Continual learning › Class-incremental · approach: Few-shot class-incremental prototypes · 282 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Train with virtual-prototype loss L2 in addition to L1 (ablation)FACT · CIFAR100 FSCILaccuracyHelped
Add the forecasting loss L3 (ablation)FACT with L1 and L2 · CIFAR100 FSCILaccuracyHelped
Add the symmetric regularization loss L4 (ablation)FACT with L1, L2, and L3 · CIFAR100 FSCILaccuracyHelped
Use virtual prototypes during inference instead of ProtoNet inference (ablation)FACT · CIFAR100 FSCILaccuracyHelped
Use L1 alone, without the virtual-prototype, forecasting, and symmetric losses (ablation)FACT · CIFAR100 FSCILaccuracyHurt
Increase the number of incremental examples per class (ablation)FACT · miniImageNet FSCILlast-session accuracyHelped
Use manifold mixup, vanilla mixup, or CutMix for instance mixing (ablation)FACT · CIFAR100 FSCILlast-session accuracyNo clear effect
Increase the incremental shot count beyond 20 (ablation)FACT · miniImageNet FSCILlast-session accuracyNo clear effect
Increase virtual prototype count above 40 (ablation)FACT · CIFAR100 FSCILfinal accuracyNo clear effect
Use a small trade-off parameter gamma (ablation)FACT · CIFAR100 FSCILfinal accuracyHelped

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