The embodiment of the invention provides a method and a device for updating a prediction model for vehicle passenger flow volume, in the training process for the prediction model for the vehicle passenger flow volume, a matrix mode is used for replacing an operation mode of a mathematical expression, mathematical characteristics of the matrix and the vector are fully utilized, operation and passenger flow volume summarization processes are completed, therefore, the problem that an optimization algorithm is difficult to use in a mathematical expression is avoided, the convergence speed is increased, and the model training efficiency is improved. Furthermore, the loss function can be defined as vector consistency by utilizing the characteristics of vectors, so that the accuracy of the prediction model is not influenced even if the sample data volume is reduced, and the calculation cost in the model training process is further reduced.
本说明书实施例提供一种针对车辆客流量的预测模型进行更新的方法和装置,在针对车辆客流量的预测模型的训练过程中,通过矩阵方式代替数学表达式的运算方式,充分利用矩阵和向量的数学特征,完成运算和客流量汇总过程,从而避免了数学表达式中难以使用优化算法等问题,加快收敛速度,提高模型训练效率。进一步地,利用向量的特点,可以将损失函数定义为向量一致性,即使减少样本数据量,也不影响预测模型的准确度,进一步降低模型训练过程中的计算成本。
Method and device for updating prediction model for vehicle passenger flow volume
针对车辆客流量的预测模型进行更新的方法及装置
2021-09-28
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / 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 |
European Patent Office | 2024
|Vehicle dynamic prediction model updating method and device
European Patent Office | 2022
|PASSENGER FLOW PREDICTOR, PASSENGER FLOW PREDICTION METHOD, AND PASSENGER FLOW PREDICTION PROGRAM
European Patent Office | 2024
|Metro Passenger Volume Prediction
DataCite | 2024
|