Software Foundations for Data Interoperability and Large Scale Graph Data Analytics 4th International Workshop, SFDI 2020, and 2nd International Workshop, LSGDA 2020, held in Conjunction with VLDB 2020, Tokyo, Japan, September 4, 2020, Proceedings - Qin, Lu; Zhang, Wenjie; Zhang, Ying; Peng, You; Kato, Hiroyuki; Wang, Wei; Xiao, Chuan (Springer International Publishing, 2020)