@conference {zhao_originator_2013,
	title = {Originator or propagator?: incorporating social role theory into topic models for twitter content analysis},
	booktitle = {Proceedings of the 22nd ACM international conference on Conference on information \& knowledge management},
	year = {2013},
	pages = {1649{\textendash}1654},
	publisher = {ACM},
	organization = {ACM},
	url = {http://dl.acm.org/citation.cfm?id=2505599},
	author = {Zhao, Xin Wayne and Wang, Jinpeng and He, Yulan and Jian-Yun Nie and Li, Xiaoming}
}
