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We establish sufficient conditions for exponential convergence to a unique quasi-stationary distribution in the total variation norm. These conditions also ensure the existence and exponential ergodicity of the Q-process, the process…

概率论 · 数学 2023-08-01 Aurélien Velleret

Piecewise deterministic Markov processes (PDMPs) are a class of continuous-time Markov processes that were recently used to develop a new class of Markov chain Monte Carlo algorithms. However, the implementation of the processes is…

统计计算 · 统计学 2024-08-08 Charly Andral , Kengo Kamatani

In this paper, we consider a subclass of piecewise deterministic Markov processes with a Polish state space that involve a deterministic motion punctuated by random jumps, occurring in a Poisson-like fashion with some state-dependent rate,…

概率论 · 数学 2024-05-28 Dawid Czapla

The Levy diffusion processes are a form of non ordinary statistical mechanics resting, however, on the conventional Markov property. As a consequence of this, their dynamic derivation is possible provided that (i) a source of randomness is…

统计力学 · 物理学 2016-08-31 Mauro Bologna , Paolo Grigolini , Juri Riccardi

We consider a piecewise deterministic Markov decision process, where the expected exponential utility of total (nonnegative) cost is to be minimized. The cost rate, transition rate and post-jump distributions are under control. The state…

最优化与控制 · 数学 2017-11-22 Xin Guo , Yi Zhang

Switching dynamical systems provide a powerful, interpretable modeling framework for inference in time-series data in, e.g., the natural sciences or engineering applications. Since many areas, such as biology or discrete-event systems, are…

机器学习 · 计算机科学 2021-09-30 Lukas Köhs , Bastian Alt , Heinz Koeppl

We consider the problem of learning two families of time-evolving random measures from indirect observations. In the first model, the signal is a Fleming--Viot diffusion, which is reversible with respect to the law of a Dirichlet process,…

统计理论 · 数学 2014-11-19 Omiros Papaspiliopoulos , Matteo Ruggiero , Dario Spanò

For general penalized Markov processes with soft killing, we propose a simple criterion ensuring uniform convergence of conditional distributions in Wasserstein distance to a unique quasi-stationary distribution. We give several examples of…

概率论 · 数学 2025-11-13 Nicolas Champagnat , Edouard Strickler , Denis Villemonais

Recently there have been exciting developments in Monte Carlo methods, with the development of new MCMC and sequential Monte Carlo (SMC) algorithms which are based on continuous-time, rather than discrete-time, Markov processes. This has…

统计计算 · 统计学 2020-09-29 Paul Fearnhead , Joris Bierkens , Murray Pollock , Gareth O Roberts

Empirical processes for stationary, causal sequences are considered. We establish empirical central limit theorems for classes of indicators of left half lines, absolutely continuous functions and piecewise differentiable functions. Sample…

统计理论 · 数学 2007-06-13 Wei Biao Wu

Necessary and sufficient conditions are given for a substochastic semigroup on $L^1$ obtained through the Kato--Voigt perturbation theorem to be either stochastic or strongly stable. We show how such semigroups are related to piecewise…

泛函分析 · 数学 2009-05-14 Marta Tyran-Kaminska

Ito's construction of Markovian solutions to stochastic equations driven by a L\'evy noise is extended to nonlinear distribution dependent integrands aiming at the effective construction of linear and nonlinear Markov semigroups and the…

概率论 · 数学 2022-05-03 Vassili N. Kolokoltsov

We consider Piecewise Deterministic Markov Processes (PDMPs) with a finite set of discrete states. In the regime of fast jumps between discrete states, we prove a law of large number and a large deviation principle. In the regime of fast…

概率论 · 数学 2008-09-16 A. Faggionato , D. Gabrielli , M. Ribezzi Crivellari

Leveraging recent work on data-driven methods for constructing a finite state space Markov process from dynamical systems, we address two problems for obtaining further reduced statistical representations. The first problem is to extract…

混沌动力学 · 物理学 2024-05-14 Ludovico Theo Giorgini , Andre N. Souza , Peter J. Schmid

We prove that certain asymptotic moments exist for some random distance expanding dynamical systems and Markov chains in random dynamical environment, and compute them in terms of the derivatives at the $0$ of an appropriate pressure…

动力系统 · 数学 2020-05-13 Yeor Hafouta

We consider a general piecewise deterministic Markov process (PDMP) $X=\{X_t\}_{t\geqslant 0}$ with measure-valued generator $\mathcal{A}$, for which the conditional distribution function of the inter-occurrence time is not necessarily…

概率论 · 数学 2017-04-27 Zhaoyang Liu , Yuying Liu , Guoxin Liu

We consider the numerical construction of minimal Lagrangian graphs, which is related to recent applications in materials science, molecular engineering, and theoretical physics. It is known that this problem can be formulated as an…

数值分析 · 数学 2021-07-01 Brittany Froese Hamfeldt , Jacob Lesniewski

In this paper, we consider some aspects of the numerical analysis of the mathematical model of fractional Duffing with a derivative of variable fractional order of the Riemann-Liouville type. Using numerical methods: an explicit…

数值分析 · 数学 2022-07-06 Valentine Kim , Roman Parovik

This paper presents with justifications a technique that is useful for the study of piecewise deterministic Markov decision processes (PDMDPs) with general policies and unbounded transition intensities. This technique produces an auxiliary…

最优化与控制 · 数学 2020-06-15 Xin Guo , Yi Zhang

Recently a generalized master equation was derived that extends the Lindblad theory to highly non-Markovian quantum processes (H.-P. Breuer, Phys. Rev. A \textbf{75}, 022103 (2007)). We perform a stochastic unravelling of this master…

量子物理 · 物理学 2009-04-23 Mervlyn Moodley , Francesco Petruccione