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A Process-Algebraic Language for Probabilistic I/O Automata

  • Eugene W. Stark
  • Rance Cleaveland
  • Scott A. Smolka
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2761)

Abstract

We present a process-algebraic language for Probabilistic I/O Automata (PIOA). To ensure that PIOA specifications given in our language satisfy the “input-enabled” property, which requires that all input actions be enabled in every state of a PIOA, we augment the language with a set of type inference rules. We also equip our language with a formal operational semantics defined by a set of transition rules. We present a number of results whose thrust is to establish that the typing and transition rules are sensible and interact properly. The central connection between types and transition systems is that if a term is well-typed, then in fact the associated transition system is input-enabled. We also consider two notions of equivalence for our language, weighted bisimulation equivalence and PIOA behavioral equivalence. We show that both equivalences are substitutive with respect to the operators of the language, and note that weighted bisimulation equivalence is a strict refinement of behavioral equivalence.

Keywords

stochastic process algebras typing systems and algorithms process equivalences continuous-time Markov chains 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Eugene W. Stark
    • 1
  • Rance Cleaveland
    • 1
  • Scott A. Smolka
    • 1
  1. 1.Department of Computer ScienceState University of New York at Stony BrookStony BrookUSA

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