A Data-Driven Methodology for Heating Optimization in Smart Buildings Topics: Big Data Algorithm, Methodology, Business Models and Challenges; Energy-saving and Green IT Systems or Applications; Modeling, Experiments, Sharing Technologies & Platforms; Pattern Recognition and Behavioral Investigations for Vehicles, Green Systems and Smart City; Smart City Examples and Case Studies In Proceedings of the 2nd International Conference on Internet of Things, Big Data and Security IoTBDS - Volume 1, 19-29, 2017 , Porto, Portugal