Luo, Ao, Fan Yang, Xin Li, Dong Nie, Zhicheng Jiao, Shangchen Zhou, and Hong Cheng. “Hybrid Graph Neural Networks for Crowd Counting”. Proceedings of the AAAI Conference on Artificial Intelligence 34, no. 07 (April 3, 2020): 11693-11700. Accessed April 18, 2024. https://ojs.aaai.org/index.php/AAAI/article/view/6839.