OpenLane-V2: A Topology Reasoning Benchmark for Unified 3D HD Mapping - Wang, Huijie; Li, Tianyu; Li, Yang; Chen, Li; Sima, Chonghao; Liu, Zhenbo; Wang, Bangjun; Jia, Peijin; Wang, Yuting; Jiang, Shengyin; Wen, Feng; Xu, Hang; et al. (Advances in Neural Information Processing Systems, 2023)