Big Data - BigData 2019 8th International Congress, Held as Part of the Services Conference Federation, SCF 2019, San Diego, CA, USA, June 25-30, 2019, Proceedings - Chen, Keke; Chen, Keke; Seshadri, Sangeetha; Seshadri, Sangeetha; Zhang, Liang-Jie; Zhang, Liang-Jie (Springer International Publishing : Imprint: Springer, 2019)