arXiv:2412.14569cs.LGcs.AI2024-12

提出融合全局时空关系与异常感知的交通预测方法,提升长期预测准确性。

Global Spatio-Temporal Fusion-based Traffic Prediction Algorithm with Anomaly Aware

  • 设计异常影响模块,量化突发事件对交通的时空影响
  • 基于Transformer构建多尺度特征融合模块,捕捉长短期关联
  • 在PEMS04/08数据集上达领先性能,适合城市交通管理应用

交通预测是城市规划与交通管理的关键环节。现有方法多聚焦局部短期时空相关性,未能充分建模不同路网传感器间的长期交互关系。同时,多数模型对异常因素分析不足,难以提取其个性化特征,导致无法有效捕捉异常对预测的影响。为此,本文提出一种融合全局时空关系与异常感知的交通预测算法。首先,通过设计的异常检测网络构建异常因素影响模块(AFIM),评估突发事件对交通的时空影响;其次,提出基于Transformer架构的多尺度时空特征融合模块(MTSFFL),在大范围路网中捕捉所有可能的长短时关联,实现更精准的流量预测。最后,在真实交通数据集PEMS04和PEMS08上实验验证,所提方法达到当前最优性能。

原文摘要 · Abstract (English)

Traffic prediction is an indispensable component of urban planning and traffic management. Achieving accurate traffic prediction hinges on the ability to capture the potential spatio-temporal relationships among road sensors. However, the majority of existing works focus on local short-term spatio-temporal correlations, failing to fully consider the interactions of different sensors in the long-term state. In addition, these works do not analyze the influences of anomalous factors, or have insufficient ability to extract personalized features of anomalous factors, which make them ineffectively capture their spatio-temporal influences on traffic prediction. To address the aforementioned issues, We propose a global spatio-temporal fusion-based traffic prediction algorithm that incorporates anomaly awareness. Initially, based on the designed anomaly detection network, we construct an efficient anomalous factors impacting module (AFIM), to evaluate the spatio-temporal impact of unexpected external events on traffic prediction. Furthermore, we propose a multi-scale spatio-temporal feature fusion module (MTSFFL) based on the transformer architecture, to obtain all possible both long and short term correlations among different sensors in a wide-area traffic environment for accurate prediction of traffic flow. Finally, experiments are implemented based on real-scenario public transportation datasets (PEMS04 and PEMS08) to demonstrate that our approach can achieve state-of-the-art performance.

交通预测异常感知时空建模Transformer

Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。