Drone Pollution Tracking in Cities Using Recurrent Proximal Policy Optimization Learning. - Andreas Eliades; Elie Thellier; Haitao Tian; Shivam Mehta; Nouf Almesafri; Hongqian Chen; Zhuangkun Wei; Adolfo Perrusquía; Cunjia Liu; Weisi Guo (ISC2, 2024)