Equivalence classes for optimizing risk models in Markov decision processes

Yoshio Ohtsubo () and Kenji Toyonaga

Mathematical Methods of Operations Research, 2004, vol. 60, issue 2, 239-250

Abstract: We consider eight problems in which we maximize or minimize threshold probabilities in discounted Markov decision processes with bounded reward set. We show that such problems are classified to two equivalence classes and give a relationship between optimal values and optimal policies of problems in each equivalence class. Literatures relative to such problems deal with only first equivalence class (cf. White(1993), Wu and Lin(1999) and Ohtsubo and Toyonaga(2002)). We consider a problem of the second equivalence class in the same situation as Ohtsubo and Toyonaga and characterize optimal values in finite and infinite horizon cases, by using an argument of a dual problem. We also give two sufficient conditions for the existence of an optimal policy. Finally we give a relationship of optimal values between first and second equivalence classes. Copyright Springer-Verlag 2004

Keywords: Markov decision process; Threshold probability; Equivalence relation; Existence of optimal policy (search for similar items in EconPapers)
Date: 2004
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DOI: 10.1007/s001860400361

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