Fine-Grained Urban Flow Inference with Multi-scale Representation Learning
<|reference_start|>Fine-Grained Urban Flow Inference with Multi-scale Representation Learning: 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.<|reference_end|>
@article{yuan2024fine-grained,
    title={Fine-Grained Urban Flow Inference with Multi-scale Representation
  Learning},
    author={Shilu Yuan, Dongfeng Li, Wei Liu, Xinxin Zhang, Meng Chen, Junjie
  Zhang, and Yongshun Gong},
    journal={arXiv preprint arXiv:2406.09710},
    year={2024},
    archivePrefix={arXiv},
    eprint={2406.09710},
    primaryClass={cs.CV cs.AI}
}