Zhang, Weijia, Hao Liu, Yanchi Liu, Jingbo Zhou, and Hui Xiong. 2020. “Semi-Supervised Hierarchical Recurrent Graph Neural Network for City-Wide Parking Availability Prediction”. Proceedings of the AAAI Conference on Artificial Intelligence 34 (01):1186-93. https://doi.org/10.1609/aaai.v34i01.5471.