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arXiv 2109.07142cs.LGcs.AIcs.CR
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基于深度学习预测的通用对抗攻击

Universal Adversarial Attack on Deep Learning Based Prognostics

TCS Research(TCS研究院)

Arghya Basak, Pradeep Rathore, Sri Harsha Nistala, Sagar Srinivas, Venkataramana Runkana

摘要:

基于深度学习的时间序列模型正在工程和制造业中广泛用于过程控制和优化、资产监控、诊断和预测性维护。这些模型在预测工业设备的剩余使用寿命(RUL)方面有很大的改进,但存在固有的对抗攻击脆弱性。这些攻击很容易被利用,并可能导致关键工业设备的灾难性故障。通常,针对输入数据的每个实例计算不同的对抗性扰动。然而,由于更高的计算要求和缺乏对输入数据的不间断访问,这对于攻击者来说难以实时的实现。因此,我们提出了通用对抗性扰动的概念,这是一种特殊的不可感知的噪声,用于欺骗基于回归的RUL预测模型。攻击者可以很容易地利用通用对抗扰动进行实时攻击,因为连续访问输入数据和对抗扰动的重复计算不是其先决条件。我们使用NASA涡轮风扇发动机数据集评估通用对抗攻击的效果。我们发现,除了普遍对抗扰动的任何情况下的输入数据增加了模型预测的输出误差。据我们所知,我们是第一个研究普遍对抗扰动对时间序列回归模型的影响。我们进一步证明了扰动强度的变化对RUL预测模型的影响,并发现模型精度随着通用对抗攻击扰动强度的增加而降低。我们还展示了通用对抗扰动可以在不同的模型中转移。

英文摘要:

Deep learning-based time series models are being extensively utilized in engineering and manufacturing industries for process control and optimization, asset monitoring, diagnostic and predictive maintenance. These models have shown great improvement in the prediction of the remaining useful life (RUL) of industrial equipment but suffer from inherent vulnerability to adversarial attacks. These attacks can be easily exploited and can lead to catastrophic failure of critical industrial equipment. In general, different adversarial perturbations are computed for each instance of the input data. This is, however, difficult for the attacker to achieve in real time due to higher computational requirement and lack of uninterrupted access to the input data. Hence, we present the concept of universal adversarial perturbation, a special imperceptible noise to fool regression based RUL prediction models. Attackers can easily utilize universal adversarial perturbations for real-time attack since continuous access to input data and repetitive computation of adversarial perturbations are not a prerequisite for the same. We evaluate the effect of universal adversarial attacks using NASA turbofan engine dataset. We show that addition of universal adversarial perturbation to any instance of the input data increases error in the output predicted by the model. To the best of our knowledge, we are the first to study the effect of the universal adversarial perturbation on time series regression models. We further demonstrate the effect of varying the strength of perturbations on RUL prediction models and found that model accuracy decreases with the increase in perturbation strength of the universal adversarial attack. We also showcase that universal adversarial perturbation can be transferred across different models.

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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