@article {3718,
	title = {Data Augmentation for BERT Fine-Tuning in Open-Domain Question Answering},
	journal = {ArXiv},
	volume = {abs/1904.06652},
	year = {2019},
	url = {http://arxiv.org/abs/1904.06652},
	author = {Wei Yang and Yuqing Xie and Luchen Tan and Kun Xiong and Ming Li and Jimmy Lin}
}
