@article { SBSL14, title = {Moving on Twitter: Using Episodic Hotspot and Drift Analysis to Detect and Characterise Spatial Trajectories}, journal = {In Proceedings of the 7th ACM SIGSPATIAL International Workshop on Location-Based Social Networks. (best student paper award) ACM}, year = {2014}, author = {Senaratne, Hansi and Broering, Arne and Schreck, Tobias and Lehle, Dominic} }