Huisman, M.
; Păsăreanu, C.
; Zhan, N.
(Ed.)
We study the problem of finding optimal strategies in Markov decision processes with lexicographic ω-regular objectives, which are ordered collections of ordinary ω-regular objectives. The goal is to compute strategies that maximise the probability of satisfaction of the first 𝜔-regular objective; subject to that, the strategy should also maximise the probability of satisfaction of the second ω-regular objective; then the third and so forth. For instance, one may want to guarantee critical requirements first, functional ones second and only then focus on the non-functional ones. We show how to harness the classic off-the-shelf model-free reinforcement learning techniques to solve this problem and evaluate their performance on four case studies.
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