@conference {157,
	title = {{PQBF:} I/O-Efficient Approximate Nearest Neighbor Search by Product Quantization},
	booktitle = {Proceedings of the 2017 {ACM} on Conference on Information and Knowledge Management, {CIKM} 2017, Singapore, November 06 - 10, 2017},
	year = {2017},
	pages = {667{\textendash}676},
	author = {Yingfan Liu and Hong Cheng and Jiangtao Cui}
}
