Probabilistic Model Checking of Biological Systems with Uncertain Kinetic Rates

  • Authors:
  • Roberto Barbuti;Francesca Levi;Paolo Milazzo;Guido Scatena

  • Affiliations:
  • Dip. di Informatica, Univ. di Pisa, Pisa, Italy 56127;Dip. di Informatica, Univ. di Pisa, Pisa, Italy 56127;Dip. di Informatica, Univ. di Pisa, Pisa, Italy 56127;IMT Lucca Inst. for Advanced Studies, Lucca, Italy 55100

  • Venue:
  • RP '09 Proceedings of the 3rd International Workshop on Reachability Problems
  • Year:
  • 2009

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Abstract

We present an abstraction of the probabilistic semantics of Multiset Rewriting to formally express systems of reactions with uncertain kinetic rates. This allows biological systems modelling when the exact rates are not known, but are supposed to lie in some intervals. On these (abstract) models we perform probabilistic model checking obtaining lower and upper bounds for the probabilities of reaching states satisfying given properties. These bounds are under- and over-approximations, respectively, of the probabilities one would obtain by verifying the models with exact kinetic rates belonging to the intervals.