Information Technology in Disaster Risk Reduction : 6th IFIP WG 5. 15 International Conference, ITDRR 2021, Morioka, Japan, October 25-27, 2021, Revised Selected Papers - Sasaki, Jun.; Murayama, Yuko; Velev, Dimiter; Zlateva, Plamena (Cham Springer International Publishing AG, 2022)