@article{oagbertpretrainheterogeneousentity,
  title = {OAG-BERT: Towards A Unified Backbone Language Model For Academic Knowledge Services},
  author = {Xiao Liu and Da Yin and Jingnan Zheng and Xingjian Zhang and Peng Zhang and Hongxia Yang and Yuxiao Dong and Jie Tang},
  year = {2021},
  eprint = {2103.02410},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2103.02410v3},
}