Hybrid Semantics of Stochastic Programs with Dynamic Reconfiguration.
Title | Hybrid Semantics of Stochastic Programs with Dynamic Reconfiguration. |
Publication Type | Conference Paper |
Year of Publication | 2009 |
Authors | Bortolussi L, Policriti A |
Editor | Back R-J, Petre I, de Vink E |
Conference Name | COMPMOD 2009 |
Volume | 6 |
Pages | 63–76 |
Publisher | Open Publishing Association |
Keywords | Computational Systems Biology, Hybrid Approximation, Hybrid Simulation Strategies, stochastic concurrent constraint programming, stochastic hybrid systems |
Abstract | We begin by reviewing a technique to approximate the dynamics of stochastic programs –written in a stochastic process algebra– by a hybrid system, suitable to capture a mixed discrete/continuous evolution. In a nutshell, the discrete dynamics is kept stochastic while the continuous evolution is given in terms of ODEs, and the overall technique, therefore, naturally associates a Piecewise Deterministic Markov Process with a stochastic program. The specific contribution in this work consists in an increase of the flexibility of the translation scheme, obtained by allowing a dynamic reconfiguration of the degree of discreteness/continuity of the semantics. We also discuss the relationships of this approach with other hybrid simulation strategies for biochemical systems. |
URL | http://arxiv.org/abs/0910.1406v1 |
DOI | 10.4204/EPTCS.6.5 |