@inproceedings{EDM-2015-ChangHC,
	author        = "Haw-Shiuan Chang and Hwai-Jung Hsu and Kuan-Ta Chen",
	booktitle     = "{Proceedings of the Eighth International Conference on Educational Data Mining}",
	ee            = "http://www.educationaldatamining.org/EDM2015/proceedings/short532-535.pdf",
	isbn          = "978-8-4606-9425-0",
	pages         = "532--535",
	publisher     = "{International Educational Data Mining Society}",
	title         = "{Modeling Exercise Relationships in E-Learning: A Unified Approach}",
	year          = 2015,
}