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A dynamic mission abort policy for the swarm executing missions and its solution method by tailored deep reinforcement learning

机译：A dynamic mission abort policy for the swarm executing missions and its solution method by tailored deep reinforcement learning

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摘要

The mission abort is an effective action to avoid catastrophic accidents and enhance the survivability of safety -critical systems such as unmanned aerial vehicle swarms and submarine swarms. Existing researches mainly focus on the abort policy of single equipment and lack consideration for the swarm. Furthermore, the mission abort of equipment in the swarm has operation dependence, and the state space of a swarm is far larger than that of single equipment, which leads to a curse of dimensionality. To solve the above problems, a dynamic mission abort policy is developed for the swarm to specify mission abort policies for both the equipment level and swarm level. First, considering both the degradation level, operating state of equipment, and time in the mission, a dynamic mission abort policy is proposed for the swarm with changing states. Next, the mission abort problem is formulated as a Markov decision process to maximize the expected cumulative reward of the swarm. Then, to overcome the curse of dimensionality, a deep reinforcement learning approach is tailored to optimize the pro-posed policy, where an action mask method is adopted to filter out infeasible actions. Finally, a case study is presented to illustrate the superiority of the proposed approach.

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