arXiv:2501.04861cs.CV2025-01被引 1

用分形合成增强数据,提升模型抗干扰能力。

LayerMix: Enhanced Data Augmentation through Fractal Integration for Robust Deep Learning

  • 通过分形结构系统生成语义一致的合成图像
  • 在多个数据集上显著提升分类准确率与鲁棒性
  • 适合关注模型安全与泛化能力的研究者

深度学习模型在计算机视觉任务中表现卓越,但对分布外样本仍显脆弱。尽管网络架构复杂,面对自然噪声、对抗扰动和异常模式时性能常不稳定。本文提出LayerMix,一种基于分形集成的数据增强方法,通过在训练数据中引入结构化复杂性,生成语义一致的合成样本,显著提升神经网络泛化能力。与传统随机变换不同,LayerMix采用结构化混合流程,在保持原图语义的同时引入可控变异。在CIFAR-10、CIFAR-100、ImageNet-200和ImageNet-1K等多组基准测试中,LayerMix均表现出更优的分类精度,并大幅提升模型在自然图像噪声、对抗攻击下的鲁棒性,改善模型校准度与预测一致性。该方法推动了更可靠、可适应人工智能系统的构建。代码已开源:https://github.com/ahmadmughees/layermix。

原文摘要 · Abstract (English)

Deep learning models have demonstrated remarkable performance across various computer vision tasks, yet their vulnerability to distribution shifts remains a critical challenge. Despite sophisticated neural network architectures, existing models often struggle to maintain consistent performance when confronted with Out-of-Distribution (OOD) samples, including natural corruptions, adversarial perturbations, and anomalous patterns. We introduce LayerMix, an innovative data augmentation approach that systematically enhances model robustness through structured fractal-based image synthesis. By meticulously integrating structural complexity into training datasets, our method generates semantically consistent synthetic samples that significantly improve neural network generalization capabilities. Unlike traditional augmentation techniques that rely on random transformations, LayerMix employs a structured mixing pipeline that preserves original image semantics while introducing controlled variability. Extensive experiments across multiple benchmark datasets, including CIFAR-10, CIFAR-100, ImageNet-200, and ImageNet-1K demonstrate LayerMixs superior performance in classification accuracy and substantially enhances critical Machine Learning (ML) safety metrics, including resilience to natural image corruptions, robustness against adversarial attacks, improved model calibration and enhanced prediction consistency. LayerMix represents a significant advancement toward developing more reliable and adaptable artificial intelligence systems by addressing the fundamental challenges of deep learning generalization. The code is available at https://github.com/ahmadmughees/layermix.

数据增强模型鲁棒性分形合成

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