@inproceedings{CIKM-2015-HsiehYL,
	author        = "Hsun-Ping Hsieh and Rui Yan and Cheng-Te Li",
	booktitle     = "{Proceedings of the 24th ACM International Conference on Information and Knowledge Management}",
	doi           = "10.1145/2806416.2806653",
	isbn          = "978-1-4503-3794-6",
	pages         = "1839--1842",
	publisher     = "{ACM}",
	title         = "{Where You Go Reveals Who You Know: Analyzing Social Ties from Millions of Footprints}",
	year          = 2015,
}