一句话:研究MDP中布尔组合的概率与非概率ω-正则目标,给出策略存在性算法和复杂度界。
本文研究马尔可夫决策过程(MDP)中,对若干ω-正则目标进行布尔组合时,判定是否存在满足该组合的策略。每个目标可以要求以必然、几乎必然、存在性或以非零概率成立,因而混合了概率与非概率(定性)目标。作者指出最优策略可能需要随机化且使用无限记忆。论文给出求解一般布尔组合的算法,并分析若干重要子情形,给出相应的复杂度上界,从而刻画这类策略存在性问题的可判定性与计算代价。
In this paper, we consider algorithms to decide the existence of strategies in MDPs for Boolean combinations of objectives. These objectives are omega-regular properties that need to be enforced either surely, almost surely, existentially, or with non-zero probability. In this setting, relevant strategies are randomized infinite memory strategies: both infinite memory and randomization may be needed to play optimally. We provide algorithms to solve the general case of Boolean combinations and we also investigate relevant subcases. We further report on complexity bounds for these problems.