Proactive migration model of SWIM service based on situation awareness

To solve the problem that in the system wide information management (SWIM) network,the SWIM service provider suffers from SWIM service interruption,service delay increase or service quality degradation due to malicious attack or self-failure.Therefore,a proactive migration model of SWIM service was proposed on the basis of situation awareness,which used the random forest algorithm to timely judge the SWIM service provider security situation.SWIM service authority was actively migrated according to security situation,and the emergencies impact on SWIM services were reduces.Experimental results show that the proposed model can guarantee services continuity in an emergency event,which has higher reliability and stability than SWIM network in which the service migration model is not deployed.