Luping Ding Songting Chen Elke A. Rundensteiner Jun'ichi Tatemura Wang-Pin Hsiung K. Selçuk Candan Runtime Semantic Query Optimization for Event Stream Processing. 676-685 2008 ICDE http://dx.doi.org/10.1109/ICDE.2008.4497476 conf/icde/2008 db/conf/icde/icde2008.html#DingCRTHC08