Urban inter-region road section passing probability generation method and system based on diffusion model
The invention provides a method and a system for generating traffic probability of road sections among urban regions based on a diffusion model, and belongs to the field of smart city traffic. The method comprises the following steps: firstly, acquiring a road network map and a track data set of a t...
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| creator | LYU HAOCHEN FENG FANLI GUO SHENGNAN LIN YOUFANG WAN HUAIYU GONG LETIAN JU-WANG LINBO |
| description | The invention provides a method and a system for generating traffic probability of road sections among urban regions based on a diffusion model, and belongs to the field of smart city traffic. The method comprises the following steps: firstly, acquiring a road network map and a track data set of a to-be-monitored city; grid division is carried out on the road network map, and a departure place O area and a destination D area are determined; according to a road network map and a track data set, a feature X = (l1, l2,... li,... lm) is constructed, li represents the passing probability of a road section i, and m is the number of nodes in a node set N in a road network; normalizing the features X of all OD pairs, and dividing the features X into a training set and a test set; constructing an inter-region road section passage probability generation model based on the diffusion model, and respectively completing training and testing of the model; and obtaining road network data in any OD area in a to-be-monitored c |
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| subjects | CALCULATING COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS COMPUTING COUNTING DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES PHYSICS SIGNALLING SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR TRAFFIC CONTROL SYSTEMS |
| title | Urban inter-region road section passing probability generation method and system based on diffusion model |
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