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Model-free and Bayesian Ensembling Model-based Deep Reinforcement Learning for Particle Accelerator Control Demonstrated on the FERMI FEL. (arXiv:2012.09737v2 [cs.LG] UPDATED)
Jan. 27, 2022, 2:11 a.m. | Simon Hirlaender, Niky Bruchon
cs.LG updates on arXiv.org arxiv.org
Reinforcement learning holds tremendous promise in accelerator controls. The
primary goal of this paper is to show how this approach can be utilised on an
operational level on accelerator physics problems. Despite the success of
model-free reinforcement learning in several domains, sample-efficiency still
is a bottle-neck, which might be encompassed by model-based methods. We compare
well-suited purely model-based to model-free reinforcement learning applied to
the intensity optimisation on the FERMI FEL system. We find that the
model-based approach demonstrates higher …
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