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Deep Q-learning: a robust control approach. (arXiv:2201.08610v2 [cs.LG] UPDATED)
Nov. 8, 2022, 2:12 a.m. | Balazs Varga, Balazs Kulcsar, Morteza Haghir Chehreghani
cs.LG updates on arXiv.org arxiv.org
In this paper, we place deep Q-learning into a control-oriented perspective
and study its learning dynamics with well-established techniques from robust
control. We formulate an uncertain linear time-invariant model by means of the
neural tangent kernel to describe learning. We show the instability of learning
and analyze the agent's behavior in frequency-domain. Then, we ensure
convergence via robust controllers acting as dynamical rewards in the loss
function. We synthesize three controllers: state-feedback gain scheduling H2,
dynamic Hinf, and constant gain …
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