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1. LSTM-Transformer-crash-risk-evaluation LSTM-Transformer-crash-risk-evaluation Public

   This is the source codes and modeling data for paper: LSTM + Transformer Real-Time Crash Risk Evaluation Using Traffic Flow and Risky Driving Behavior Data

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2. Spatial-ML Spatial-ML Public

   A novel spatial Machine Learning (ML) framework that integrates multiple ML models—Random Forest, XGBoost, and LightGBM—with geographically weighted regression to account for spatial heterogeneity.…

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3. My-publications My-publications Public

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4. Grouped-random-parameters-Poisson-Lindley-model-with-spatial-effects Grouped-random-parameters-Poisson-Lindley-model-with-spatial-effects Public

   This is the WinBUGS codes for AMAR paper: https://doi.org/10.1016/j.amar.2025.100387. It includes codes for running Grouped Random Parameters Poisson-Lindley model with spatial effects and other ba…

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5. UCFLeiHan.github.io UCFLeiHan.github.io Public

   My personal website

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