Point or Line? Using Line-based Representation for Panoptic Symbol Spotting in CAD Drawings - Wei, Xingguang; Wang, Haomin; Ye, Shenglong; Luo, Ruifeng; Zhang, Zhang; Gu, Lixin; Dai, Jifeng; Qiao, Yu; Wang, Wenhai; Zhang, Hongjie (Advances in Neural Information Processing Systems, 2025)