Our paper titled “Stratified Random Sampling over Streaming and Stored Data”, by Trong Nguyen, Ming-Hung Shih, Divesh Srivastava, Srikanta Tirthapura and Bojian Xu has been accepted to appear in the International Conference on Extending Database Technology (EDBT) 2019. This paper addresses algorithms and lower bounds (inherent difficulties) for computing a stratified random sample on streaming data. Congrats Trong and Danny!