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arXiv 2409.04728eess.SYcs.LGcs.SYeess.SP
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通过共享Koopman特征模态进行城市交通分析与预测

Urban traffic analysis and forecasting through shared Koopman eigenmodes

New York University Abu Dhabi(纽约大学阿布扎比分校)

Chuhan Yang, Fares B. Mehouachi, Monica Menendez, Saif Eddin Jabari

AI总结:

针对数据稀缺城市的交通流量预测难题,提出基于约束汉克尔化DMD(TrHDMD)的跨城市迁移学习方法,通过提取并共享数据丰富城市的稳定Koopman特征模态(城市心跳),显著提升了数据稀缺城市的预测准确性与交通管理能力。

摘要:

由于历史数据有限,在数据稀缺的城市中预测交通流量具有挑战性。为解决此问题,我们利用迁移学习,通过一种定制的动态模态分解(DMD)变体:约束汉克尔化DMD(TrHDMD),来识别数据丰富城市中常见的周期性模式。该方法揭示了交通模式中的共同特征模态(城市心跳),并将其迁移到数据稀缺的城市,从而显著提升预测性能。TrHDMD通过利用来自其他城市的先验知识,减少了对大量训练数据集的需求。通过将Koopman算子理论应用于多城市环形线圈检测器数据,我们识别出了稳定、可解释且时不变的交通模态。将“城市心跳”注入预测任务中提高了预测准确性,并有望提升具有不同数据基础设施城市的交通管理策略。我们的工作引入了通过共享Koopman特征模态进行跨城市知识迁移的方法,为数据稀缺的城市环境提供可操作的见解和可靠的预测。

英文摘要:

Predicting traffic flow in data-scarce cities is challenging due to limited historical data. To address this, we leverage transfer learning by identifying periodic patterns common to data-rich cities using a customized variant of Dynamic Mode Decomposition (DMD): constrained Hankelized DMD (TrHDMD). This method uncovers common eigenmodes (urban heartbeats) in traffic patterns and transfers them to data-scarce cities, significantly enhancing prediction performance. TrHDMD reduces the need for extensive training datasets by utilizing prior knowledge from other cities. By applying Koopman operator theory to multi-city loop detector data, we identify stable, interpretable, and time-invariant traffic modes. Injecting ``urban heartbeats'' into forecasting tasks improves prediction accuracy and has the potential to enhance traffic management strategies for cities with varying data infrastructures. Our work introduces cross-city knowledge transfer via shared Koopman eigenmodes, offering actionable insights and reliable forecasts for data-scarce urban environments.

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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