CAESAR: Context-Aware Event Stream Analytics for Urban Transportation Services. - Olga Poppe; Chuan Lei; Elke A. Rundensteiner; Daniel J. Dougherty; Goutham Deva; Nicholas Fajardo; James Owens; Thomas Schweich; MaryAnn Van Valkenburg; Sarun Paisarnsrisomsuk; Pitchaya Wiratchotisatian; George Gettel; et al. (EDBT, 2017)