@article {3682,
	title = {A Few Brief Notes on DeepImpact, COIL, and a Conceptual Framework For Information Retrieval Techniques},
	journal = {ArXiv},
	volume = {abs/2106.14807},
	year = {2021},
	url = {https://arxiv.org/abs/2106.14807},
	author = {Jimmy Lin and Xueguang Ma}
}
