@article {sam2013,
	title = {Content-boosted matrix factorization techniques for recommender systems},
	journal = {Statistical Analysis and Data Mining: The ASA Data Science Journal},
	volume = {6},
	number = {4},
	year = {2013},
	pages = {286{\textendash}301},
	doi = {10.1002/sam.11184},
	url = {http://doi.org/10.1002/sam.11184},
	author = {Nguyen, Jennifer and Zhu, Mu}
}
