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arXiv 1709.09585cs.AI
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DeepTransport:学习时空依赖关系以预测交通状况

DeepTransport: Learning Spatial-Temporal Dependency for Traffic Condition Forecasting

Baidu Research(百度研究院)

Xingyi Cheng, Ruiqing Zhang, Jie Zhou, Wei Xu

AI总结:

本文提出端到端框架DeepTransport,融合CNN、RNN与注意力机制建模道路拓扑中的时空依赖,并发布5分钟分辨率真实大型交通数据集,预测效果显著优于现有方法。

摘要:

交通状况预测最近被探索为缓解交通拥堵的一种方式。已有若干开创性方法基于目标位置及其相邻区域的交通观测结果提出,但由于缺乏对道路拓扑的挖掘,它们获得的准确性 somewhat 有限。为解决影响衰减问题,我们建议考虑周边位置(范围比相邻区域更广)的交通状况。我们提出了一个名为 DeepTransport 的端到端框架,其中利用卷积神经网络(CNN)和循环神经网络(RNN)来获取交通网络拓扑内的时空交通信息。此外,引入注意力机制以对齐空间和时间信息。而且,我们构建并发布了一个真实世界的大型交通状况数据集,其分辨率为5分钟。我们在该数据集上的实验表明,本方法捕捉了时间和空间领域中的复杂关系。它显著优于传统统计方法和一种最先进的深度学习方法。

英文摘要:

Predicting traffic conditions has been recently explored as a way to relieve traffic congestion. Several pioneering approaches have been proposed based on traffic observations of the target location as well as its adjacent regions, but they obtain somewhat limited accuracy due to a lack of mining road topology. To address the effect attenuation problem, we suggest taking into account the traffic of surrounding locations(wider than the adjacent range). We propose an end-to-end framework called DeepTransport, in which Convolutional Neural Networks (CNN) and Recurrent Neural Networks (RNN) are utilized to obtain spatial-temporal traffic information within a transport network topology. In addition, an attention mechanism is introduced to align spatial and temporal information. Moreover, we constructed and released a real-world large traffic condition dataset with a 5-minute resolution. Our experiments on this dataset demonstrate our method captures the complex relationship in the temporal and spatial domains. It significantly outperforms traditional statistical methods and a state-of-the-art deep learning method.

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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