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The Markov chain approximation of a one-dimensional symmetric diffusion is investigated in this paper. Given an irreducible reflecting diffusion on a closed interval with scale function $s$ and speed measure $m$, the approximating Markov…

概率论 · 数学 2020-04-16 Xiaodan Li , Jiangang Ying

Suppose an online platform wants to compare a treatment and control policy, e.g., two different matching algorithms in a ridesharing system, or two different inventory management algorithms in an online retail site. Standard randomized…

统计方法学 · 统计学 2022-12-27 Peter Glynn , Ramesh Johari , Mohammad Rasouli

Markov chains are a class of probabilistic models that have achieved widespread application in the quantitative sciences. This is in part due to their versatility, but is compounded by the ease with which they can be probed analytically.…

机器学习 · 计算机科学 2023-12-18 Eddie Seabrook , Laurenz Wiskott

The expansion of global production networks has raised many important questions about the interdependence among countries and how future changes in the world economy are likely to affect the countries' positioning in global value chains. We…

综合经济学 · 经济学 2020-05-20 Olivera Kostoska , Viktor Stojkoski , Ljupco Kocarev

The irreducible decomposition of successive restriction and induction of irreducible representations of a symmetric group gives rise to a Markov chain on Young diagrams keeping the Plancherel measure invariant. Starting from this Res-Ind…

概率论 · 数学 2019-06-25 Akihito Hora

Metropolis-Hastings estimates intractable expectations - can differentiating the algorithm estimate their gradients? The challenge is that Metropolis-Hastings trajectories are not conventionally differentiable due to the discrete…

统计理论 · 数学 2024-06-21 Gaurav Arya , Moritz Schauer , Ruben Seyer

We consider a strictly substochastic matrix or an stochastic matrix with absorbing states. By using quasi-stationary distributions one shows there is a canonical associated stationary Markov chain. Based upon $2-$stringing representation of…

概率论 · 数学 2019-10-03 Servet Martínez

Metastability is a physical phenomenon ubiquitous in first order phase transitions. A fruitful mathematical way to approach this phenomenon is the study of rare transitions Markov chains. For Metropolis chains associated with Statistical…

概率论 · 数学 2015-09-30 Emilio Cirillo , Francesca Nardi , Julien Sohier

Recursive stochastic algorithms have gained significant attention in the recent past due to data driven applications. Examples include stochastic gradient descent for solving large-scale optimization problems and empirical dynamic…

机器学习 · 计算机科学 2020-07-27 Abhishek Gupta , Hao Chen , Jianzong Pi , Gaurav Tendolkar

We study scaling limits of non-increasing Markov chains with values in the set of non-negative integers, under the assumption that the large jump events are rare and happen at rates that behave like a negative power of the current state. We…

概率论 · 数学 2012-01-06 Bénédicte Haas , Grégory Miermont

We study the limit behaviour of upper and lower bounds on expected time averages in imprecise Markov chains; a generalised type of Markov chain where the local dynamics, traditionally characterised by transition probabilities, are now…

概率论 · 数学 2021-02-10 Natan T'Joens , Jasper De Bock

The time to converge to the steady state of a finite Markov chain can be greatly reduced by a lifting operation, which creates a new Markov chain on an expanded state space. For a class of quadratic objectives, we show an analogous behavior…

机器学习 · 统计学 2017-03-14 Guilherme França , José Bento

I show how to run an N-time-step Markov chain simulation in a circular fashion, so that the state at time 0 follows the state at time N-1 in the same way as states at times t follow those at times t-1 for 0<t<N. This wrap-around of the…

统计计算 · 统计学 2017-11-15 Radford M. Neal

The paper studies an improved estimate for the rate of convergence for nonlinear homogeneous discrete-time Markov chains. These processes are nonlinear in terms of the distribution law. Hence, the transition kernels are dependent on the…

概率论 · 数学 2021-05-21 Aleksandr Shchegolev

The extremes of a univariate Markov chain with regulary varying stationary marginal distribution and asymptotically linear behavior are known to exhibit a multiplicative random walk structure called the tail chain. In this paper, we extend…

概率论 · 数学 2014-02-04 Anja Janßen , Johan Segers

An algorithm is proposed for computing equilibrium averages of Markov chains which suffer from metastability -- the tendency to remain in one or more subsets of state space for long time intervals. The algorithm, called the parallel replica…

数值分析 · 数学 2015-11-06 David Aristoff

Traditional methods for unsupervised learning of finite mixture models require to evaluate the likelihood of all components of the mixture. This becomes computationally prohibitive when the number of components is large, as it is, for…

机器学习 · 计算机科学 2021-10-12 Milan Papež , Tomáš Pevný , Václav Šmídl

Random metastability occurs when an externally forced or noisy system possesses more than one state of apparent equilibrium. This work investigates fluctuations in a class of random dynamical systems, arising from randomly perturbing a…

动力系统 · 数学 2025-05-30 Cecilia González-Tokman , Joshua Peters

Perturbation analysis of Markov chains provides bounds on the effect that a change in a Markov transition matrix has on the corresponding stationary distribution. This paper compares and analyzes bounds found in the literature for finite…

概率论 · 数学 2024-04-03 Karim Abbas , Joost Berkhout , Bernd Heidergott

Nonlinear Markov chains with finite state space have been introduced in Kolokoltsov (2010). The characteristic property of these processes is that the transition probabilities do not only depend on the state, but also on the distribution of…

概率论 · 数学 2020-07-07 Berenice Anne Neumann