Results 21 to 30 of about 26,127 (206)

Communicating Piecewise Deterministic Markov Processes [PDF]

open access: yesIFAC Proceedings Volumes, 2003
Abstract In this paper we introduce CPDPs (Communicating Piecewise Deterministic Markov Processes) as an automata formalism for compositional specification of hybrid systems of the type PDP. A CPDP can be seen as an automaton representation of a PDP, with the extra possibility of interaction with other processes via a new concept that we call passive
Strubbe, S.N.   +2 more
openaire   +6 more sources

A Piecewise Deterministic Markov Process Approach Modeling a Dry Friction Problem with Noise [PDF]

open access: yesSIAM Journal on Applied Mathematics, 2022
Understanding and predicting the dynamical properties of systems involving dry friction is a major concern in physics and engineering. It abounds in many mechanical processes, from the sound produced by a violin to the screeching of chalk on a blackboard
J. Garnier, Ziyu Lu, L. Mertz
semanticscholar   +1 more source

Reinforcement Learning for Robust Dynamic Metabolic Control. [PDF]

open access: yesBiotechnol Bioeng
ABSTRACT Dynamic metabolic control allows key metabolic fluxes to be modulated in real time, enhancing bioprocess flexibility and expanding available optimization degrees of freedom. This is achieved, for example, via targeted modulation of metabolic enzyme expression.
Espinel-Ríos S, Walser R, Zhang D.
europepmc   +2 more sources

Subgeometric hypocoercivity for piecewise-deterministic Markov process Monte Carlo methods [PDF]

open access: yesElectronic Journal of Probability, 2020
We extend the hypocoercivity framework for piecewise-deterministic Markov process (PDMP) Monte Carlo established in [Andrieu et. al. (2018)] to heavy-tailed target distributions, which exhibit subgeometric rates of convergence to equilibrium. We make use
C. Andrieu, P. Dobson, Andi Q. Wang
semanticscholar   +1 more source

Infinite dimensional Piecewise Deterministic Markov Processes

open access: yesStochastic Processes and their Applications, 2023
In this paper we aim to construct infinite dimensional versions of well established Piecewise Deterministic Monte Carlo methods, such as the Bouncy Particle Sampler, the Zig-Zag Sampler and the Boomerang Sampler. In order to do so we provide an abstract infinite-dimensional framework for Piecewise Deterministic Markov Processes (PDMPs) with unbounded ...
Paul Dobson, Joris Bierkens
openaire   +5 more sources

Piecewise deterministic Markov processes and their invariant measures [PDF]

open access: yesAnnales de l'Institut Henri Poincaré, Probabilités et Statistiques, 2021
Piecewise Deterministic Markov Processes (PDMPs) are studied in a general framework. First, different constructions are proven to be equivalent. Second, we introduce a coupling between two PDMPs following the same differential flow which implies quantitative bounds on the total variation between the marginal distributions of the two processes.
Durmus, Alain   +2 more
openaire   +2 more sources

The Law of the Iterated Logarithm for Random Dynamical System with Jumps and State-Dependent Jump Intensity

open access: yesAnnales Mathematicae Silesianae, 2021
In this paper our considerations are focused on some Markov chain associated with certain piecewise-deterministic Markov process with a statedependent jump intensity for which the exponential ergodicity was obtained in [4].
Kubieniec Joanna
doaj   +1 more source

Pricing of Credit Risk Derivatives with Stochastic Interest Rate

open access: yesAxioms, 2023
This paper deals with a credit derivative pricing problem using the martingale approach. We generalize the conventional reduced-form credit risk model for a credit default swap market, assuming that the firms’ default intensities depend on the default ...
Wujun Lv, Linlin Tian
doaj   +1 more source

Hybrid Semantics of Stochastic Programs with Dynamic Reconfiguration [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2009
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.
Alberto Policriti, Luca Bortolussi
doaj   +1 more source

Model Checking of Continuous-Time Markov Chains Against Timed Automata Specifications [PDF]

open access: yesLogical Methods in Computer Science, 2011
We study the verification of a finite continuous-time Markov chain (CTMC) C against a linear real-time specification given as a deterministic timed automaton (DTA) A with finite or Muller acceptance conditions.
Taolue Chen   +3 more
doaj   +1 more source

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