Advances in knowledge discovery and data mining 25th Pacific-Asia Conference, PAKDD 2021, virtual event, May 11-14, 2021 : proceedings, part III - Karlapalem, Kamal; Cheng, Hong; Ramakrishnan, Naren; Agrawal, R. K.; Reddy, P. Krishna; Srivastava, Jaideep; Chakraborty, Tanmoy (Springer, 2021)