arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2406.09710cs.CVcs.AI
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基于多尺度表示学习的细粒度城市流量推断

Fine-Grained Urban Flow Inference with Multi-scale Representation Learning

Shandong University(山东大学);University of Washington(华盛顿大学);University of Technology Sydney(悉尼科技大学);Shanghai University(上海大学)

Shilu Yuan, Dongfeng Li, Wei Liu, Xinxin Zhang, Meng Chen, Junjie Zhang, Yongshun Gong

AI总结:

本文针对细粒度城市流量推断问题,提出UrbanMSR模型,通过自监督对比学习融合邻域级与城市级动态多尺度表示,并在三个真实数据集上验证其优于现有方法。

摘要:

细粒度城市流量推断(FUFI)是一项关键的交通服务,旨在提升交通效率与安全性。FUFI能够仅依据观测到的粗粒度数据推断细粒度城市交通流量。然而,现有大多数方法只关注单一尺度静态地理信息对FUFI的影响,忽略了城市内不同尺度区域之间的交互作用和动态信息。不同尺度的地理特征可能从相同空间区域中捕获冗余信息。为了有效学习跨时空的多尺度信息,我们提出了一种有效的细粒度城市流量推断模型,名为UrbanMSR。该模型利用自监督对比学习获取邻域级和城市级地理信息的动态多尺度表示,并融合多尺度表示以提高细粒度精度。多尺度表示的融合增强了细粒度性能。我们在三个真实世界数据集上通过大量实验验证了模型性能。与最先进方法相比,实验结果证明了所提模型的优越性。

英文摘要:

Fine-grained urban flow inference (FUFI) is a crucial transportation service aimed at improving traffic efficiency and safety. FUFI can infer fine-grained urban traffic flows based solely on observed coarse-grained data. However, most of existing methods focus on the influence of single-scale static geographic information on FUFI, neglecting the interactions and dynamic information between different-scale regions within the city. Different-scale geographical features can capture redundant information from the same spatial areas. In order to effectively learn multi-scale information across time and space, we propose an effective fine-grained urban flow inference model called UrbanMSR, which uses self-supervised contrastive learning to obtain dynamic multi-scale representations of neighborhood-level and city-level geographic information, and fuses multi-scale representations to improve fine-grained accuracy. The fusion of multi-scale representations enhances fine-grained. We validate the performance through extensive experiments on three real-world datasets. The resutls compared with state-of-the-art methods demonstrate the superiority of the proposed model.

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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