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arXiv 2302.01567cs.LGcs.AIcs.SYeess.SY
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深度强化学习用于信息物理系统中的在线错误检测

Deep Reinforcement Learning for Online Error Detection in Cyber-Physical Systems

Seyyedamirhossein Saeidi, Forouzan Fallah, Saeed Samieezafarghandi, Hamed Farbeh

AI总结:

针对传统 CPS 容错机制开销大、覆盖率低且检测延迟长的问题,本文提出基于 DRL 的在线错误检测方法,可区分错误类型并预测系统失效,准确率提升逾2倍、推理时间改善逾5倍。

摘要:

可靠性是信息物理系统(CPS)的主要设计准则之一。这是因为 CPS 中存在一些关键应用,其失效会造成灾难性后果。因此,在 CPS 中采用强大的错误检测与纠正机制是不可避免的。CPS 由多种单元组成,包括传感器、网络和微控制器。这些单元中的每一个都可能在任何时候处于故障状态,而发生的故障可能导致错误输出。故障可能使 CPS 的单元发生功能异常并最终崩溃。传统容错方法包括时间、硬件、信息和/或软件冗余。然而,这些方法除了错误覆盖率较低之外,还会带来显著开销,从而限制了其适用性。此外,在这些方法中,错误发生与检测之间的间隔过长。本文基于深度强化学习(DRL)提出了一种新的错误检测方法,该方法不仅能够以高精度检测错误,而且由于推理时间极短,还能够即时执行错误检测。所提出的方法能够从正常数据中区分不同类型的错误,并预测系统是否会失效。评估结果表明,与其他方法相比,所提出方法在准确率方面提升了 2 倍以上,在推理时间方面改善了 5 倍以上。

英文摘要:

Reliability is one of the major design criteria in Cyber-Physical Systems (CPSs). This is because of the existence of some critical applications in CPSs and their failure is catastrophic. Therefore, employing strong error detection and correction mechanisms in CPSs is inevitable. CPSs are composed of a variety of units, including sensors, networks, and microcontrollers. Each of these units is probable to be in a faulty state at any time and the occurred fault can result in erroneous output. The fault may cause the units of CPS to malfunction and eventually crash. Traditional fault-tolerant approaches include redundancy time, hardware, information, and/or software. However, these approaches impose significant overheads besides their low error coverage, which limits their applicability. In addition, the interval between error occurrence and detection is too long in these approaches. In this paper, based on Deep Reinforcement Learning (DRL), a new error detection approach is proposed that not only detects errors with high accuracy but also can perform error detection at the moment due to very low inference time. The proposed approach can categorize different types of errors from normal data and predict whether the system will fail. The evaluation results illustrate that the proposed approach has improved more than 2x in terms of accuracy and more than 5x in terms of inference time compared to other approaches.

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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