Energy Cost Minimization with Risk Rate Constraint for Internet Data Center in Deregulated Electricity Markets Topics: Energy-saving and Green IT Systems or Applications; IaaS, PaaS and SaaS quality of service (QoS), security, reliability, availability, service bus mechanisms; Security as a Service including any Algorithms, Methodology and Software Proof-of-concepts In Proceedings of the International Conference on Internet of Things and Big Data IoTBD - Volume 1, 407-418, 2016 , Rome, Italy