arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2108.05079cs.LGcs.AIcs.HC
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利用循环神经网络的无监督驾驶员行为分析

Unsupervised Driver Behavior Profiling leveraging Recurrent Neural Networks

School of Cybersecurity, Korea University(高丽大学网络安全学院);SOCAR

Young Ah Choi, Kyung Ho Park, Eunji Park, Huy Kang Kim

摘要:

在智能交通时代,驾驶员行为分析已经成为一种有益的技术,因为它提供了关于驾驶员攻击性的知识。以前的方法通过建立统计学规则或基于监督学习的模型来实现有前途的驾驶员行为分析性能。尽管如此,仍然存在从业者应该准备标记数据集的限制,并且先前的方法不能对先验未知的攻击性行为进行分类。在追求改善上述缺点,我们提出了一种新的方法,利用无监督学习范式的驾驶员行为分析。首先,我们将驱动程序行为分析问题转换为异常检测。其次,我们建立了循环神经网络,该网络可以在给定特征向量序列的情况下预测下一个特征向量。我们只使用正常的驾驶员数据训练模型。因此,我们的模型产生高的回归误差给定的一系列侵略性的驱动程序的行为和低的错误给定的一系列正常的驱动程序的行为。我们认为,这种差异的错误之间的正常和积极的驾驶员行为可以是一个足够的标志,驾驶员的行为分析,并完成了精确的性能在实验中。最后,我们进一步分析了识别每种攻击性驾驶员行为的最佳序列长度水平。我们希望所提出的方法能够成为无监督驾驶员行为分析的有用基线,并为高效,智能的交通生态系统做出贡献。

英文摘要:

In the era of intelligent transportation, driver behavior profiling has become a beneficial technology as it provides knowledge regarding the driver's aggressiveness. Previous approaches achieved promising driver behavior profiling performance through establishing statistical heuristics rules or supervised learning-based models. Still, there exist limits that the practitioner should prepare a labeled dataset, and prior approaches could not classify aggressive behaviors which are not known a priori. In pursuit of improving the aforementioned drawbacks, we propose a novel approach to driver behavior profiling leveraging an unsupervised learning paradigm. First, we cast the driver behavior profiling problem as anomaly detection. Second, we established recurrent neural networks that predict the next feature vector given a sequence of feature vectors. We trained the model with normal driver data only. As a result, our model yields high regression error given a sequence of aggressive driver behavior and low error given at a sequence of normal driver behavior. We figured this difference of error between normal and aggressive driver behavior can be an adequate flag for driver behavior profiling and accomplished a precise performance in experiments. Lastly, we further analyzed the optimal level of sequence length for identifying each aggressive driver behavior. We expect the proposed approach to be a useful baseline for unsupervised driver behavior profiling and contribute to the efficient, intelligent transportation ecosystem.

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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