Before revision:  Rather than guiding evacuees with a routing algorithm directly , a robust Cognitive Packet Network based algorithm is first evaluated via a cloud-based simulator in a faster-than-real-time manner . Towards all the perished evacuees in the simulation, a variant of Dijkstra's algorithm is then employed to solve optimal paths for them and all the evacuees will finally follow the desired paths to exits.
After revision:  Rather than guiding evacuees with a routing algorithm directly , a robust Cognitive Packet Network based algorithm is first evaluated via a cloud-based simulator in a faster-than-real-time manner , and any "simulated casualties" are then re-routed using a variant of Dijkstra's algorithm is then employed to solve optimal paths for them and all the evacuees will finally follow the desired paths to exits.