1. Backstrom L Sun E Marlow C 2010 Find me if you can: Improving geographical prediction with social and spatial proximity Proceedings of the Nineteenth International Conference on the World Wide Web (WWW ′10) , Raleigh, North Carolina 61 70
2. Bawa-Cavia A 2011 Sensing the urban: Using location-based social network data in urban analysis Proceedings of the First Workshop on Pervasive Urban Applications (PURBA) , San Francisco, California http://purba.mit.edu/sites/default/files/Pervasive2011.Workshop03.Paper06.pdf
3. Bouillot F Poncelet P Roche M 2012 How and why exploit tweet's location information? Proceedings of the Fifteenth AGILE Conference on Geographic Information Science , Avignon, France
4. Critical questions for big data: Provocations for a cultural, technological, and scholarly phenomenon;Boyd;Information, Communication and Society,2012
5. Social network sites: Definition, history, and scholarship;Boyd;Journal of Computer-Mediated Communication,2008