Symmetry Reduction For Stochastic Hybrid Systems


Bujorianu, L.M. and Katoen, J.P. (2008) Symmetry Reduction For Stochastic Hybrid Systems. [Report]

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Abstract:This paper is focused on adapting symmetry reduction, a technique that is highly successful in traditional model checking, to stochastic hybrid systems. To that end, we first show that performability analysis of stochastic hybrid systems can be reduced to a stochastic reachability analysis (SRA). Then, we generalize the notion of symmetry
reduction as recently proposed for probabilistic model checking, to continuous probabilistic systems. We provide a rigorous mathematical foundation for the reduction technique in the continuous case and also investigate its observability perspective. For stochastic hybrid
systems, characterizations for this reduction technique are provided, in terms of their infinitesimal generator.
Keywords: Markov models, symmetries, transformation group, abstractions, reachability, probabilistic model checking.
Item Type:Report
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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