arXiv:2606.11695cs.LGcs.AI2026-06

CANOLA通过噪声感知学习修复数据标签,提升模型鲁棒性。

Noise-Aware Framework for Correcting Corrupted Labels

论文配图:Noise-Aware Framework for Correcting Corrupted Labels
图 1 · 摘自论文原文
  • 显式估计数据噪声分布,指导模型关注可信信号
  • 迭代软标签修正使数据修复更稳定,错误率降低19%~52%
  • 适合标注质量差的场景,尤其对简单模型效果显著

高质量标注数据对训练可靠机器学习/深度学习模型至关重要。然而真实数据集常含大量错误标签,严重损害模型性能。为此,我们提出CANOLA框架,通过噪声感知学习与迭代标签修正实现标签纠错。CANOLA显式估计数据底层噪声分布,并将其融入噪声感知深度神经网络训练中,使模型能抑制不可靠监督信号、聚焦可信模式,从而增强鲁棒性与泛化能力。标签修正采用谨慎的迭代软标签融合策略,将模型预测与观测标签结合,防止过早或错误更新。该渐进式修正过程确保数据集以稳定可控方式修复。我们在六个常用数据集上评估了CANOLA在真实噪声标注场景下的表现。实验表明,CANOLA持续优于当前最优标签修正方法,错误率相对降低19%至52%。基于CANOLA修正数据训练的模型在下游任务中取得显著提升。即使使用简单分类器,其性能也可超过复杂模型中心方法达67%以上。

原文摘要 · Abstract (English)

High-quality labeled data is essential for training reliable ML/DL models. However, real-world datasets often contain a considerable proportion of corrupted labels, which can severely degrade model performance. To address this problem, we propose CANOLA, a novel framework for correcting corrupted labels through noise-aware learning and iterative label refinement. CANOLA explicitly estimates the underlying noise distribution of the dataset and incorporates this information into the training of a noise-aware Deep Neural Network. By incorporating noise characteristics during learning, CANOLA enables the model to down-weight unreliable supervision signals and focus on trustworthy patterns, thereby improving robustness and generalization. Label correction is performed via cautious, iterative soft label refinement, in which model predictions are blended with observed labels to prevent premature or erroneous updates. This progressive refinement allows the dataset to be repaired in a stable and controlled manner. We evaluate CANOLA on six widely used datasets under realistic noisy labeling scenarios. Experimental results show that CANOLA consistently outperforms SOTA label correction methods, achieving relative improvements ranging from 19% to 52% in error reduction. Moreover, models trained on datasets corrected by CANOLA obtain substantial downstream performance gains. Even simple classifiers trained on CANOLA's corrected data can outperform complex model-centric approaches by margins of up to 67%.

标签纠错噪声感知数据修复

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