@article{physicalvirtualcollaborationgraphnetwork,
  title = {Physical-Virtual Collaboration Modeling for Intra-and Inter-Station Metro Ridership Prediction},
  author = {Lingbo Liu and Jingwen Chen and Hefeng Wu and Jiajie Zhen and Guanbin Li and Liang Lin},
  year = {2020},
  eprint = {2001.04889},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2001.04889v3},
}