Cited by 89Traffic Prediction and Management TechniquesUrban Design and Spatial AnalysisHuman Mobility and Location-Based Analysis

Fine-Grained Urban Flow Prediction

Open access
Liang, Yuxuan, Ouyang, Kun, Sun, Junkai, Wang, Yiwei, Zhang, Junbo, Zheng, Yu, Rosenblum, David, Zimmermann, Roger·2021·Proceedings of the Web Conference 2021

Abstract

Urban flow prediction benefits smart cities in many aspects, such as traffic management and risk assessment. However, a critical prerequisite for these benefits is having fine-grained knowledge of the city. Thus, unlike previous works that are limited to coarse-grained data, we extend the horizon of urban flow prediction to fine granularity which raises specific challenges: 1) the predominance of inter-grid transitions observed in fine-grained data makes it more complicated to capture the spatial dependencies among grid cells at a global scale; 2) it is very challenging to learn the impact of external factors (e.g., weather) on a large number of grid cells separately. To address these two challenges, we present a Spatio-Temporal Relation Network (STRN) to predict fine-grained urban flows. First, a backbone network is used to learn high-level representations for each cell. Second, we present a Global Relation Module (GloNet) that captures global spatial dependencies much more efficiently compared to existing methods. Third, we design a Meta Learner that takes external factors and land functions (e.g., POI density) as inputs to produce meta knowledge and boost model performances. We conduct extensive experiments on two real-world datasets. The results show that STRN reduces the errors by 7.1% to 11.5% compared to the state-of-the-art method while using much fewer parameters. Moreover, a cloud-based system called UrbanFlow 3.0 has been deployed to show the practicality of our approach.

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  • Tracking locations and analysing mobility has contributed to many day-to-day applications such as traffic management, routing, recommender systems, and cellular network load balancing.

    “Tracking locations and analysing mobility has contributed to many day-to-day applications, for example, traffic management and forecasting [87,88], routing individuals [89] and delivery packages [90], recommender systems [91], dynamic load balancing systems for cellular networks [92], to name a few.”

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Research works printed but not linked: 5

  1. Chao Huang, Junbo Zhang, Yu Zheng, and Nitesh V Chawla. 2018. DeepCrime: Attentive hierarchical recurrent networks for crime prediction. In ACM Interna- tional Conference on Information and Knowledge Management. 1423-1432.
  2. Yaguang Li, Rose Yu, Cyrus Shahabi, and Yan Liu. 2018. Diffusion Convolutional Recurrent Neural Network: Data-Driven Traffic Forecasting. In International Conference on Learning Representations.
  3. Yuxuan Liang, Kun Ouyang, Lin Jing, Sijie Ruan, Ye Liu, Junbo Zhang, David S. Rosenblum, and Yu Zheng. 2019. UrbanFM: Inferring Fine-Grained Urban Flows. In Proceedings of the 25th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining. ACM, 3132-3142.
  4. Xingjian Shi, Zhourong Chen, Hao Wang, Dit-Yan Yeung, Wai-Kin Wong, and Wang-chun Woo. 2015. Convolutional LSTM network: A machine learning ap- proach for precipitation nowcasting. In Advances in neural information processing systems. 802-810.
  5. Bing Yu, Haoteng Yin, and Zhanxing Zhu. 2018. Spatio-temporal Graph Con- volutional Networks: A Deep Learning Framework for Traffic Forecasting. In IJCAI.

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Authors
Liang, Y., Ouyang, K., Sun, J., Wang, Y., Zhang, J., Zheng, Y., Rosenblum, D., & Zimmermann, R.
Affiliations
  • National University of Singapore (SG)
  • Jingdong (China) (CN)
  • Southwest Jiaotong University (CN)
  • George Mason University (US)
Venue
Proceedings of the Web Conference 2021
Publisher
ACM
Published
2021-04-19
Pages
1833-1845
OpenAlex
W3156972038
Cited by
89
References
46
Citations by year
2026: 4 · 2025: 18 · 2024: 21 · 2023: 24 · 2022: 19 · 2021: 3
FWCI
34.30
Type
conference paper
Language
en
Open access
Locations
International World Wide Web Conference (WWW) (publishedVersion, other-oa)
Funders
  • National Natural Science Foundation of China (72061127001, 62076191)
  • Ministry of Education, India
  • Beijing Nova Program (Z201100006820053)
Topics
  • Physical Sciences › Engineering › Building and Construction › Traffic Prediction and Management Techniques
  • Physical Sciences › Engineering › Building and Construction › Urban Design and Spatial Analysis
  • Social Sciences › Transportation › Human Mobility and Location-Based Analysis
Keywords
external factors, weather effects, meta-learning, smart cities, traffic management

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