“…Life searching is usually one of the tasks assigned to UAVs in task assignment operations [133,153,192,193,198,210,219]. In the selected studies, search operations were facilitated by Twitter data [198], data obtained from thermal cameras [141], LiDAR sensors [210], or other types of sensors attached to the searching vehicles [193,206,[210][211][212][213]215] as well as the data from the mobile IoT devices belonging to the victims [139,148,149,155,221]. In most cases, the missing person is assumed to be moving or their mobility status is unspecified and unrelated to the problem formulation at hand, except in [208], where the person was considered immobile.…”