@inproceedings {5202,
	title = {Multi-Task Dense Retrieval via Model Uncertainty Fusion for Open-Domain Question Answering},
	booktitle = {Conference on Empirical Methods in Natural Language Processing (EMNLP)},
	year = {2021},
	url = {https://aclanthology.org/2021.findings-emnlp.26},
	author = {Minghan Li and Ming Li and Kun Xiong and Jimmy Lin}
}
