@inproceedings{distantlysuperviseddenseretrievalenables,
  title = {Distantly-Supervised Dense Retrieval Enables Open-Domain Question Answering without Evidence Annotation},
  author = {Chen Zhao and Chenyan Xiong and Jordan Boyd-Graber and Hal Daumé III},
  year = {2021},
  booktitle = {EMNLP 2021 11},
  url = {https://aclanthology.org/2021.emnlp-main.756},
}