@inproceedings{ICPR-2012-LeeKD,
	author        = "Kyuhwa Lee and Tae-Kyun Kim and Yiannis Demiris",
	booktitle     = "{Proceedings of the 21st International Conference on Pattern Recognition}",
	isbn          = "978-1-4673-2216-4",
	pages         = "3778--3782",
	publisher     = "{IEEE Computer Society}",
	title         = "{Learning action symbols for hierarchical grammar induction}",
	year          = 2012,
}