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Learning with Structural Labels for Learning with Noisy Labels

Deep Neural Networks (DNNs) have demonstrated remarkable performance across diverse domains and tasks with large-scale datasets. To reduce labeling costs for large-scale datasets semi-automated and crowdsourcing labeling methods are developed but their labels are inevitably noisy. Learning with Noisy Labels (LNL) approaches aim to train DNNs despite the presence of noisy labels. These approaches utilize the memorization effect to select correct labels and refine noisy ones which are then used for subsequent training. However these methods encounter a significant decrease in the model's generalization performance due to the inevitably existing noise labels. To overcome this limitation we propose a new approach to enhance learning with noisy labels by incorporating additional distribution information--structural labels. In order to leverage additional distribution information for generalization we employ a reverse k-NN which helps the model in achieving a better feature manifold and mitigating overfitting to noisy labels. The proposed method shows outperformed performance in multiple benchmark datasets with IDN and real-world noisy datasets.

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