Towards Scalable and Structured Spatiotemporal Forecasting

• URL: http://arxiv.org/abs/2509.18115v1
• Date: Wed, 10 Sep 2025 03:25:24 GMT
• Title: Towards Scalable and Structured Spatiotemporal Forecasting
• Authors: Hongyi Chen, Xiucheng Li, Xinyang Chen, Jing Li, Kehai Chen, Liqiang Nie,
• Abstract summary: We propose a novel Spatial Balance Attention block fortemporal forecasting.<n>We partition the spatial graph into a set subgraphs and instantiate-graph Attention to learn local spatial correlation within each subgraph.<n>We develop a multiscale forecasting model by progressively increasing the subgraph scales.
• Score: 67.74910348499974
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In this paper, we propose a novel Spatial Balance Attention block for spatiotemporal forecasting. To strike a balance between obeying spatial proximity and capturing global correlation, we partition the spatial graph into a set of subgraphs and instantiate Intra-subgraph Attention to learn local spatial correlation within each subgraph; to capture the global spatial correlation, we further aggregate the nodes to produce subgraph representations and achieve message passing among the subgraphs via Inter-subgraph Attention. Building on the proposed Spatial Balance Attention block, we develop a multiscale spatiotemporal forecasting model by progressively increasing the subgraph scales. The resulting model is both scalable and able to produce structured spatial correlation, and meanwhile, it is easy to implement. We evaluate its efficacy and efficiency against the existing models on real-world spatiotemporal datasets from medium to large sizes. The experimental results show that it can achieve performance improvements up to 7.7% over the baseline methods at low running costs.

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