The invention provides a traffic state data interpolation method and device, electronic equipment and a readable storage medium, and the method comprises the steps: obtaining original GPS data, carrying out the preprocessing of the original GPS data to obtain a preprocessed vehicle track data set, and generating a traffic speed tensor based on the preprocessed vehicle track data set; based on the traffic speed tensor, constructing a heterogeneous graph attention network model considering space and time factors in space and time perspectives; utilizing the heterogeneous graph attention network model to extract potential features of a space view angle and a time view angle, and performing feature fusion on the potential features to perform interpolation of missing traffic state data; and outputting an interpolation result of the traffic state data so as to realize accurate estimation of missing data. According to the invention, through fusion of space and time heterogeneous features, robust interpolation can be provided for the traffic state under different missing proportions, so that the traffic state can be predicted more accurately.
本发明提供一种交通状态数据插补方法、装置、电子设备及可读存储介质,所述方法包括:获取原始GPS数据,对所述原始GPS数据进行预处理以得到预处理后的车辆轨迹数据集合,并基于预处理后的所述车辆轨迹数据集合生成交通速度张量;基于所述交通速度张量,在空间和时间视角中构建考虑空间和时间因素的异构图注意力网络模型;利用所述异构图注意力网络模型,提取空间和时间视角的潜在特征,通过对所述潜在特征进行特征融合,进行缺失交通状态数据的插补;以及输出交通状态数据的插补结果,以实现对缺失数据的准确估计。通过本发明,通过融合空间和时间异构特征,能够在不同的缺失比例下对交通状态提供稳健的插补,从而更准确地预测交通状态。
Traffic state data interpolation method and device, electronic equipment and readable storage medium
交通状态数据插补方法、装置、电子设备及可读存储介质
11.04.2025
Patent
Elektronische Ressource
Chinesisch
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