@inproceedings{CIKM-2011-ChuiKLC,
	author        = "Chun Kit Chui and Ben Kao and Eric Lo and Reynold Cheng",
	booktitle     = "{Proceedings of the 20th ACM International Conference on Information and Knowledge Management}",
	doi           = "10.1145/2063576.2063812",
	isbn          = "978-1-4503-0717-8",
	pages         = "1619--1628",
	publisher     = "{ACM}",
	title         = "{I/O-efficient algorithms for answering pattern-based aggregate queries in a sequence OLAP system}",
	year          = 2011,
}