@inproceedings{CIKM-2012-YamamotoSIYWT,
	author        = "Takehiro Yamamoto and Tetsuya Sakai and Mayu Iwata and Chen Yu and Ji-Rong Wen and Katsumi Tanaka",
	booktitle     = "{Proceedings of the 21st ACM International Conference on Information and Knowledge Management}",
	doi           = "10.1145/2396761.2396827",
	isbn          = "978-1-4503-1156-4",
	pages         = "505--514",
	publisher     = "{ACM}",
	title         = "{The wisdom of advertisers: mining subgoals via query clustering}",
	year          = 2012,
}