\input zb-basic \input zb-ioport \iteman{io-port 06098314} \itemau{Xie, Chuan; Wang, Fang} \itemti{Service similarity checking based on event for Internet of Things.} \itemso{J. Comput. Appl. 31, No. 8, 2258-2260 (2011).} \itemab Summary: To check the redundant services of Internet of Things (IoT) and save resources, a novel similarity calculation model based on service event class diagram was proposed to check redundancy by means of relations between events and services. It analyzed the context of IoT and service type and obtained the services similarity measurement based on events according to this model. By this similarity calculation method, a static service redundancy detection algorithm was proposed to remove duplication function invocation of services, which saved system resources occupied by services and decreased the consumption of resources in the IoT. \itemrv{~} \itemcc{} \itemut{event; events of services graph; services similarity checkting} \itemli{doi:10.3724/SP.J.1087.2011.02258} \end