Memory Optimization of a Distributed Middleware for Smart Grid Applications Topics: Framework (conceptual, logical or software); Intelligent Infrastructure and Guidance Systems; Middleware and Agents for IoT and Big Data, Grid and Cluster Computing; Performance Evaluation and Modeling ; Software Architecture and Middleware In Proceedings of the 2nd International Conference on Internet of Things, Big Data and Security IoTBDS - Volume 1, 331-337, 2017 , Porto, Portugal