@inproceedings{AIIDE-2011-YuT,
	author        = "Hong Yu and Tyler Trawick",
	booktitle     = "{Proceedings of the Seventh Conference on Artificial Intelligence and Interactive Digital Entertainment}",
	ee            = "http://www.aaai.org/ocs/index.php/AIIDE/AIIDE11/paper/view/4049",
	publisher     = "{The AAAI Press}",
	title         = "{Personalized Procedural Content Generation to Minimize Frustration and Boredom Based on Ranking Algorithm}",
	year          = 2011,
}