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We replicate a renewal process at random times, which is equivalent to nesting two renewal processes, or considering a renewal process subject to stochastic resetting. We investigate the consequences on the statistical properties of the…

统计力学 · 物理学 2025-01-31 Claude Godrèche , Jean-Marc Luck

Population dynamics are often subject to random independent changes in the environment. For the two strategy stochastic replicator dynamic, we assume that stochastic changes in the environment replace the payoffs and variance. This is…

种群与进化 · 定量生物学 2014-06-11 Andrew Vlasic

Stochastic dynamics of chemical reactions in a mutually repressing two-gene circuit is numerically simulated. The circuit has a rich variety of different states when the kinetic change of DNA status is slow. The stochastic switching…

无序系统与神经网络 · 物理学 2009-11-11 Tomohiro Ushikubo , Wataru Inoue , Mitsumasa Yoda , Masaki Sasai

Hysteresis and bet-hedging (random choice of phenotypes) are two different observations typically linked with multiplicity of phenotypes in biological systems. Hysteresis can be viewed as form of the system's persistent memory of past…

种群与进化 · 定量生物学 2015-06-17 Gary Friedman , Stephen McCarthy , Dmitrii Rachinskii

Stochastic resetting is a powerful strategy known to accelerate the first-passage time statistics of stochastic processes. While its effects on Markovian systems are well understood, a general framework for non-Markovian dynamics is still…

统计力学 · 物理学 2025-09-16 Debasish Saha , Rati Sharma

In the classical stochastic resetting problem, a particle, moving according to some stochastic dynamics, undergoes random interruptions that bring it to a selected domain, and then, the process recommences. Hitherto, the resetting mechanism…

统计力学 · 物理学 2020-12-08 Carlos A. Plata , Deepak Gupta , Sandro Azaele

In the past few decades, the development of fluorescent technologies and microscopic techniques has greatly improved scientists' ability to observe real-time single-cell activities. In this paper, we consider the filtering problem associate…

定量方法 · 定量生物学 2022-07-27 Zhou Fang , Ankit Gupta , Mustafa Khammash

Stochastic resetting can be naturally understood as a renewal process governing the evolution of an underlying stochastic process. In this work, we formally derive well-known results of diffusion with resets from a renewal theory…

统计力学 · 物理学 2022-10-05 Axel Masó-Puigdellosas , Daniel Campos , Vicenç Méndez

We analyze ecological systems that are influenced by random environmental fluctuations. We first provide general conditions which ensure that the species coexist and the system converges to a unique invariant probability measure (stationary…

种群与进化 · 定量生物学 2021-05-19 Alexandru Hening , Yao Li

We consider the problem of `discrete-time persistence', which deals with the zero-crossings of a continuous stochastic process, X(T), measured at discrete times, T = n(\Delta T). For a Gaussian Stationary Process the persistence (no…

统计力学 · 物理学 2009-11-07 George C. M. A. Ehrhardt , Alan J. Bray , Satya N. Majumdar

Simulation of stochastic spatially-extended systems is a challenging problem. The fundamental quantities in these models are individual entities such as molecules, cells, or animals, which move and react in a random manner. In big systems,…

定量方法 · 定量生物学 2024-09-24 Tomás Alarcón , Natalia Briñas-Pascual , Juan Calvo , Pilar Guerrero , Daria Stepanova

Randomly evolving systems composed by elements which interact among each other have always been of great interest in several scientific fields. This work deals with the synchronization phenomenon, that could be roughly defined as the…

概率论 · 数学 2017-12-18 Giacomo Aletti , Irene Crimaldi , Andrea Ghiglietti

Cell fate determination, the process through which cells commit to differentiated states is commonly mediated by gene regulatory motifs with mutually exclusive expression states. The classical deterministic picture for cell fate…

分子网络 · 定量生物学 2019-10-09 Manuel Pájaro , Irene Otero-Muras , Carlos Vázquez , Antonio A. Alonso

Fluctuating environments pose tremendous challenges to bacterial populations. It is observed in numerous bacterial species that individual cells can stochastically switch among multiple phenotypes for the population to survive in rapidly…

分子网络 · 定量生物学 2015-01-20 Chen Jia , Min-Ping Qian , Yu Kang , Da-Quan Jiang

A common and effective method for calculating the steady-state distribution of a process under stochastic resetting is the renewal approach that requires only the knowledge of the reset-free propagator of the underlying process and the…

统计力学 · 物理学 2024-11-15 Ron Vatash , Amy Altshuler , Yael Roichman

Stochastic HYPE is a novel process algebra that models stochastic, instantaneous and continuous behaviour. It develops the flow-based approach of the hybrid process algebra HYPE by replacing non-urgent events with events with…

系统与控制 · 计算机科学 2014-11-18 Luca Bortolussi , Vashti Galpin , Jane Hillston

We consider properties of one-dimensional diffusive dichotomous flow and discuss effects of resonant activation in the presence of statistically independent random resetting mechanism. Resonant activation and stochastic resetting are two…

统计力学 · 物理学 2021-06-30 Karol Capała , Bartłomiej Dybiec , Ewa Gudowska-Nowak

Consistency models have recently been introduced to accelerate sampling from diffusion models by directly predicting the solution (i.e., data) of the probability flow ODE (PF ODE) from initial noise. However, the training of consistency…

机器学习 · 计算机科学 2025-01-24 Sangyun Lee , Yilun Xu , Tomas Geffner , Giulia Fanti , Karsten Kreis , Arash Vahdat , Weili Nie

In this paper, we consider a stochastic process that may experience random reset events which relocate the system to its starting position. We focus our attention on a one-dimensional, monotonic continuous-time random walk with a constant…

数学物理 · 物理学 2017-10-11 Miquel Montero , Axel Masó-Puigdellosas , Javier Villarroel

The paper deals with non-linear Poisson neuron network models with bounded memory dynamics, that can include both Hebbian learning mechanisms and refractory periods. The state of a network is described by the times elapsed since its neurons…

概率论 · 数学 2012-06-21 Konstantin Borovkov , Geoffrey Decrouez , Matthieu Gilson