The invention discloses a traffic flow prediction method and system based on a decoupling graph convolution circulation network, a multi-scale time embedded encoder, a sensor specific graph convolution network and a signal decoupling mechanism are used, and the method comprises the following steps: S1, inputting historical traffic data, including flow and speed, and carrying out standardized preprocessing; s2, performing adaptive fusion on minute-level, daily-period and weekly-period features of the input historical traffic data through a multi-scale time embedded encoder MTEE to generate a multi-scale spatial-temporal feature matrix; according to the method, the defects of a traditional model in time multi-scale modeling, node heterogeneity adaptation and sudden fluctuation processing are overcome. The prediction effect of the method is obviously superior to that of the prior art, the MAE index is obviously reduced, and the method is suitable for intelligent traffic management, navigation optimization and emergency decision support.
本发明公开基于解耦图卷积循环网络的交通流量预测方法与系统,使用多尺度时间嵌入编码器、传感器特定图卷积网络和信号解耦机制,其中方法包括步骤S1:输入历史交通数据,包括流量、速度并进行标准化预处理;步骤S2:通过多尺度时间嵌入编码器MTEE对输入的历史交通数据的分钟级、日周期和周周期特征进行自适应融合,生成多尺度时空特征矩阵。本发明解决了传统模型在时间多尺度建模、节点异质性适应和突发波动处理中的不足。该方法预测效果显著优于现有技术,MAE指标具有明显的降低,适用于智能交通管理、导航优化及应急决策支持。
Traffic flow prediction method and system based on decoupling graph convolution circulation network
基于解耦图卷积循环网络的交通流量预测方法与系统
06.05.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / G06Q Datenverarbeitungssysteme oder -verfahren, besonders angepasst an verwaltungstechnische, geschäftliche, finanzielle oder betriebswirtschaftliche Zwecke, sowie an geschäftsbezogene Überwachungs- oder Voraussagezwecke , DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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