Before revision:  Evolving datasets arise in energy systems (e.g., real-time smart meter measurements), transportation (e.g., real-time traces of individual movements), and retail industry (e.g., customer interactions and purchases from online stores). We first define privacy loss as a measure of the amount of information leaked by the reports at a certain fixed time and relate privacy loss to differential privacy .
After revision:  We use privacy loss as a measure of the amount of information leaked by the reports at a certain fixed time and relate privacy loss to differential privacy .