Papers › OccamNets: Mitigating Dataset Bias by Favoring Simpler Hypotheses

OccamNets: Mitigating Dataset Bias by Favoring Simpler Hypotheses

5 Apr 2022arXiv:2204.02426archive 2025-07-28

Robik Shrestha, Kushal Kafle, Christopher Kanan

Dataset bias and spurious correlations can significantly impair generalization in deep neural networks. Many prior efforts have addressed this problem using either alternative loss functions or sampling strategies that focus on rare patterns. We propose a new direction: modifying the network architecture to impose inductive biases that make the network robust to dataset bias. Specifically, we propose OccamNets, which are biased to favor simpler solutions by design. OccamNets have two inductive biases. First, they are biased to use as little network depth as needed for an individual example. Second, they are biased toward using fewer image locations for prediction. While OccamNets are biased toward simpler hypotheses, they can learn more complex hypotheses if necessary. In experiments, OccamNets outperform or rival state-of-the-art methods run on architectures that do not incorporate these inductive biases. Furthermore, we demonstrate that when the state-of-the-art debiasing methods are combined with OccamNets results further improve.

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conv1x1 erobic/occam-nets-v1/models/variable_width_resnet.py official repository ran · our draft was wrong MIT (permissive) · d9def42110729a85 · report
conv3x3 erobic/occam-nets-v1/models/variable_width_resnet.py official repository ran · our draft was wrong MIT (permissive) · 160bb14bd76201b4 · report
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replace_layer_recursive erobic/occam-nets-v1/pytorch_grad_cam/ablation_cam_multilayer.py official repository unverified MIT (permissive) · a112dc051428bbc2 · report
resnet10vw erobic/occam-nets-v1/models/variable_width_resnet.py official repository unverified MIT (permissive) · 9b8c38f00cd8f3aa · report

Tasks

Action Recognition

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Action Recognition BAR OccamResNet Accuracy 52.6 #3 of 4 Archive leaderboard report

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