

Opencity
Overview :
OpenCity is an open-source spatiotemporal foundation model focused on the field of traffic prediction. The model effectively captures and standardizes complex spatiotemporal dependencies in traffic data by integrating the Transformer architecture and graph neural networks, enabling zero-shot generalization across different urban environments. It is pre-trained on large-scale, heterogeneous traffic datasets to learn rich, generalizable representations that can be seamlessly applied to various traffic prediction scenarios.
Target Users :
OpenCity is suitable for traffic planners, data scientists, and machine learning engineers, as it provides a powerful tool for analyzing and predicting traffic flow, thereby helping to improve urban traffic management and planning.
Use Cases
Used to predict traffic flow in New York City, assisting traffic management agencies in optimizing traffic signal control.
Analyzing taxi demand patterns in Los Angeles to provide operational strategy recommendations for taxi companies.
Conducting bike trajectory analysis in Chengdu to inform urban planning regarding bike lane design.
Features
Model complex spatiotemporal dependencies in traffic data using Transformer architecture and graph neural networks
Support pre-training on large-scale, heterogeneous traffic datasets
Achieve zero-shot learning capabilities, excelling in various traffic prediction tasks without the need for fine-tuning
Provide comprehensive code, data, and model weights for easy use by researchers and developers
Support a variety of traffic-related data categories, such as traffic flow, taxi demand, and bike trajectories
Offer detailed usage instructions and environment configuration guides for swift onboarding
How to Use
Clone or download the OpenCity repository
Install the required Python environment and dependencies
Download and prepare the pre-trained datasets, placing them in the designated directory
Select the appropriate pre-trained configuration as needed and execute the pre-training script
Use the pre-trained model for traffic prediction tasks or further fine-tuning
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