Beyond AugMix: Mechanistic Data Augmentation for Truly Robust Models

Authors

  • Minal Chauhan, Parul Bhura, Nehal Chowdhary

Keywords:

Data augmentation, robustness, AugMix, mechanistic augmentation, adversarial training, out-of-distribution generalization

Abstract

The continued work to make deep neural networks more robust is one of the most important challenges in modern machine learning. Even though there have been significant advances in data augmentation techniques like Mixup, CutMix, AutoAugment, and AugMix in recent years, these methods are mostly based on trial and error, using random changes or manually designed transformations that often don’t work well when facing extreme data variations or attacks (Hendrycks et al., 2019; Yun et al., 2019; Cubuk et al., 2019). This paper argues that going beyond AugMix requires creating data augmentation strategies that are based on the underlying structure, causes, and physical properties of the data, rather than relying on randomness By looking at results on visual benchmarks such as CIFAR-10 and ImageNet, the paper shows how this type of data augmentation can help models maintain their performance even when faced with natural corruptions, adversarial attacks, and when tested with data from different distributions (Mao et al., 2022; Zhou et al., 2022). The paper also gives a detailed overview and summary of the most recent augmentation methods, bringing together ideas from adversarial training, Fourier-based robustness, game theory, and representation learning. It introduces a unified framework where mechanistic augmentation is viewed as a process that involves causal invariances, group transformations, and preserving meaning (Chen et al., 2020; Dao et al., 2019). The analysis indicates that while heuristic augmentations can boost initial resilience, they frequently encounter difficulties when dealing with complicated corruption or shifts in data, unlike mechanistic methods that are more effective at adapting and preserving clarity (Mintun et al., 2021; Ren et al., 2021). The paper connects theoretical concepts with real-world results, highlighting the need to shift toward mechanistic augmentation in order to develop models that are truly dependable. The paper makes three main contributions. First, it provides a detailed review of heuristic methods used to enhance models. Second, it introduces a framework for mechanistic augmentation, which is based on causal and structural assumptions. Third, it offers a roadmap for future research that links the development of robust models with clear, logical, and broadly applicable augmentation strategies. These results are important not just for studies on model robustness, but also for practical applications where safety, fairness, and reliability are essential.

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Published

24.03.2024

How to Cite

Minal Chauhan. (2024). Beyond AugMix: Mechanistic Data Augmentation for Truly Robust Models. International Journal of Intelligent Systems and Applications in Engineering, 12(20s), 1081 –. Retrieved from https://ijisae.org/index.php/IJISAE/article/view/7870

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Section

Research Article