Yajing Feng Zhenzhou Tang Yingying Xu Qian Hu Predicting Vacant Parking Space Availability Zone-Wisely: A Graph Based Spatio-Temporal Prediction Approach. 2503-2512 2025 February 74 IEEE Trans. Veh. Technol. 2 https://doi.org/10.1109/TVT.2023.3266224 db/journals/tvt/tvt74.html#FengTXH25 streams/journals/tvt