Before revision:  Also , some global explanation results are provided for experts to diagnose the learned policy. Our method is validated in the simulation environment. The simulation result shows our proposed method can get useful explanations to increase the user's trust to the network and also improve the network performance .
After revision:  Also , some global explanation results are provided for experts to evaluate and improve the trained neural network. The simulation results illustrated the proposed method can get useful explanations to increase the user's trust to the network and also improve the network performance .