Ubiquitous Social Media Analysis Third International Workshops, MUSE 2012, Bristol, UK, September 24, 2012, and MSM 2012, Milwaukee, WI, USA, June 25, 2012, Revised Selected Papers - Atzmueller, Martin; Chin, Alvin; Helic, Denis; Hotho, Andreas (Springer Berlin Heidelberg : Imprint: Springer, 2013)