1. Facebook: number of monthly active users worldwide 2008–2021;Department,2021
2. Twitter: number of monthly active users 2010–2019;Department,2019
3. Edge computing: Vision and challenges;Shi;IEEE Internet Things J.,2016
4. Grass: Graph structure summarization;LeFevre,2010
5. Graph summarization with quality guarantees;Riondato;Data Mining Knowl. Discov.,2017