Example of data stream descriptions (IMAGE) City University of Hong Kong Caption Example of data stream descriptions for a heartrate sensor (left) and the secure transformation of its data policies (data access requirements, right). Vizard preserves public metadata attributes (e.g. age group and country in this example) to facilitate grouping and filtering of different data streams. Credit © Cai, C. et al. https://dl.acm.org/doi/10.1145/3548606.3559349 Usage Restrictions Image must be used with appropriate caption and credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.