@inproceedings{SAC-2013-TsukudaOYIT,
	author        = "Kosetsu Tsukuda and Hiroaki Ohshima and Mitsuo Yamamoto and Hirotoshi Iwasaki and Katsumi Tanaka",
	booktitle     = "{Proceedings of the 28th Annual Symposium on Applied Computing}",
	doi           = "10.1145/2480362.2480532",
	editor        = "Sung Y. Shin and José Carlos Maldonado",
	isbn          = "978-1-4503-1656-9",
	pages         = "878--885",
	publisher     = "{ACM}",
	title         = "{Discovering unexpected information on the basis of popularity/unpopularity analysis of coordinate objects and their relationships}",
	year          = 2013,
}