Qiao, Yu, Jincheng Zhu, Chengjiang Long, Zeyao Zhang, Yuxin Wang, Zhenjun Du, and Xin Yang. “CPRAL: Collaborative Panoptic-Regional Active Learning for Semantic Segmentation”. Proceedings of the AAAI Conference on Artificial Intelligence 36, no. 2 (June 28, 2022): 2108–2116. Accessed May 9, 2026. https://ojs.aaai.org/index.php/AAAI/article/view/20107.