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arXiv 2202.01263cs.LGstat.ML

NoisyMix: Boosting Model Robustness to Common Corruptions

University of Pittsburgh(匹兹堡大学);Nordita, KTH(北欧理论物理研究所,瑞典皇家理工学院);University of Toronto(多伦多大学);ICSI(国际计算机科学研究所);UC Berkeley(加州大学伯克利分校)

N. Benjamin Erichson, Soon Hoe Lim, Winnie Xu, Francisco Utrera, Ziang Cao, Michael W. Mahoney

英文摘要:

For many real-world applications, obtaining stable and robust statistical performance is more important than simply achieving state-of-the-art predictive test accuracy, and thus robustness of neural networks is an increasingly important topic. Relatedly, data augmentation schemes have been shown to improve robustness with respect to input perturbations and domain shifts. Motivated by this, we introduce NoisyMix, a novel training scheme that promotes stability as well as leverages noisy augmentations in input and feature space to improve both model robustness and in-domain accuracy. NoisyMix produces models that are consistently more robust and that provide well-calibrated estimates of class membership probabilities. We demonstrate the benefits of NoisyMix on a range of benchmark datasets, including ImageNet-C, ImageNet-R, and ImageNet-P. Moreover, we provide theory to understand implicit regularization and robustness of NoisyMix.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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