@InProceedings{Identifying_and_characterizing_user_communities_on_Twitter_during_crisis_events, author = "Anupam Joshi and Ponnurangam Kumaraguru", title = "{Identifying and characterizing user communities on Twitter during crisis events}", month = "October", year = "2012", pages = "23-26", booktitle = "Proceedings of the 2012 workshop on Data-driven user behavioral modelling and mining from social media", publisher = "ACM Press", }