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arXiv 2408.09230cs.AI
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用于人类移动特征识别的孪生多注意力时间卷积网络

Siamese Multiple Attention Temporal Convolution Networks for Human Mobility Signature Identification

Southern University of Science and Technology(南方科技大学);Research Institute for Trustworthy Autonomous Systems(可信自主系统研究院)

Zhipeng Zheng, Yuchen Jiang, Shiyao Zhang, Xuetao Wei

AI总结:

针对现有人类移动特征识别方法处理长轨迹适应性差、难提取局部信息的问题,提出结合TCN与多头自注意力的Siamese MA-TCN及新型多尺度聚合注意力机制,在两个真实出租车轨迹数据集上表现出优异性能与泛化能力。

摘要:

人类移动特征识别(Human Mobility Signature Identification, HuMID)问题是驾驶风格表征领域的一项基础任务,致力于从不同驾驶员的轨迹中识别潜在驾驶行为与偏好,以实现驾驶员身份识别。其解决方案在网约车、保险等多个领域具有重要意义,可用于保护用户安全并减少潜在欺诈行为。现有HuMID方案在处理长轨迹时通常存在适应性局限,进而产生大量计算开销;此外,这类方案无法有效提取关键局部信息,进一步制约了其性能。为解决该问题,我们提出孪生多注意力时间卷积网络(Siamese MA-TCN),结合TCN(时间卷积网络)架构与多头自注意力的优势,能够高效提取局部与长期依赖关系。此外,我们设计了一种新型注意力机制,专门用于高效聚合模型生成的多尺度表征。在两个真实世界出租车轨迹数据集上开展的实验评估表明,所提模型可有效提取局部关键信息与长期依赖关系。这些结果凸显了模型出色的泛化能力,证明其在不同规模数据集上均具备鲁棒性与适应性。

英文摘要:

The Human Mobility Signature Identification (HuMID) problem stands as a fundamental task within the realm of driving style representation, dedicated to discerning latent driving behaviors and preferences from diverse driver trajectories for driver identification. Its solutions hold significant implications across various domains (e.g., ride-hailing, insurance), wherein their application serves to safeguard users and mitigate potential fraudulent activities. Present HuMID solutions often exhibit limitations in adaptability when confronted with lengthy trajectories, consequently incurring substantial computational overhead. Furthermore, their inability to effectively extract crucial local information further impedes their performance. To address this problem, we propose a Siamese Multiple Attention Temporal Convolutional Network (Siamese MA-TCN) to capitalize on the strengths of both TCN architecture and multi-head self-attention, enabling the proficient extraction of both local and long-term dependencies. Additionally, we devise a novel attention mechanism tailored for the efficient aggregation of multi-scale representations derived from our model. Experimental evaluations conducted on two real-world taxi trajectory datasets reveal that our proposed model effectively extracts both local key information and long-term dependencies. These findings highlight the model's outstanding generalization capabilities, demonstrating its robustness and adaptability across datasets of varying sizes.

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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