Lightweight Verification of Markov Decision Processes with Rewards
Résumé
Markov decision processes are useful models of concurrency optimisation problems, but are often intractable for exhaustive verification methods. Recent work has introduced lightweight approximative techniques that sample directly from scheduler space, bringing the prospect of scalable alternatives to standard numerical algorithms. The focus so far has been on optimising the probability of a property, but many problems require quantitative analysis of rewards. In this work we therefore present lightweight verification algorithms to optimise the rewards of Markov decision processes. We provide the statistical confidence bounds that this necessitates and demonstrate our approach on standard case studies.
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