论文标题
离线上下文贝叶斯优化核融合
Offline Contextual Bayesian Optimization for Nuclear Fusion
论文作者
论文摘要
核融合被认为是未来的能量,因为它提出了无限的清洁能源的可能性。利用融合作为可行能源的一个障碍是反应的稳定性。理想情况下,将有一个用于反应器的控制器,该控制器以血浆的当前状态做出作用,以尽可能长时间延长反应。在这项工作中,我们为学习这样的控制器做出初步步骤。由于在现实世界反应堆上学习是不可行的,因此我们通过试图通过模拟器离线学习最佳控件来解决这个问题,该模拟器可以明确设置等离子体的状态。特别是,我们引入了理论上扎根的贝叶斯优化算法,该算法建议在每次迭代时进行州和动作对评估,并表明这会更有效地使用模拟器。
Nuclear fusion is regarded as the energy of the future since it presents the possibility of unlimited clean energy. One obstacle in utilizing fusion as a feasible energy source is the stability of the reaction. Ideally, one would have a controller for the reactor that makes actions in response to the current state of the plasma in order to prolong the reaction as long as possible. In this work, we make preliminary steps to learning such a controller. Since learning on a real world reactor is infeasible, we tackle this problem by attempting to learn optimal controls offline via a simulator, where the state of the plasma can be explicitly set. In particular, we introduce a theoretically grounded Bayesian optimization algorithm that recommends a state and action pair to evaluate at every iteration and show that this results in more efficient use of the simulator.