Arnold Wiliem Vamsi Krishna Madasu Wageeh W. Boles Prasad K. D. V. Yarlagadda Detecting Uncommon Trajectories. 398-404 2008 DICTA http://dx.doi.org/10.1109/DICTA.2008.45 conf/dicta/2008 db/conf/dicta/dicta2008.html#WiliemMBY08