“…Other existing surveys have explored the different applications of Deep RL, e.g. in healthcare (Yu et al, 2019), communications/networking (Luong et al, 2019), video games (Justesen et al, 2019;Skinner & Walmsley, 2019), cyber security (Nguyen & Reddi, 2019), natural language processing (Whiteson, 2019;Stylianou & Vlahavas, 2019), robotics (Tai et al, 2016), biology (Mahmud et al, 2018), urban sustainability/transportation (Nosratabadi et al, 2020), agriculture (Yang & Sun, 2019), and many others (Li, 2019).…”