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We show that the posterior distribution of parameters in a hidden Markov model with parametric emission distributions and discrete and known state space is asymptotically normal. The main novelty of our proof is that it is based on a…

统计理论 · 数学 2021-06-01 Chunlei Wang , Sanvesh Srivastava

In this article is introduced and studied a set-indexed Markov property named C-Markov. This new definition fulfils one important expectation for a Markov property: there exists a natural set-indexed generalization of the concept of…

概率论 · 数学 2013-08-22 Paul Balança

We study a discrete-time Markov process $X_n\in\mathbb{R}^d$, for which the distribution of the future increments depends only on the relative ranking of its components (descending order by value). We endow the process with a…

概率论 · 数学 2021-05-04 Pantelis P. Analytis , Alexandros Gelastopoulos , Hrvoje Stojic

Posterior sampling is a task of central importance in Bayesian inference. For many applications in Bayesian meta-analysis and Bayesian transfer learning, the prior distribution is unknown and needs to be estimated from samples. In practice,…

统计计算 · 统计学 2024-08-06 Chenyang Zhong , Shouxuan Ji , Tian Zheng

We propose several statistics to test the Markov hypothesis for $\beta$-mixing stationary processes sampled at discrete time intervals. Our tests are based on the Chapman--Kolmogorov equation. We establish the asymptotic null distributions…

统计理论 · 数学 2016-08-14 Yacine Aït-Sahalia , Jianqing Fan , Jiancheng Jiang

We propose a methodology for modeling and comparing probability distributions within a Bayesian nonparametric framework. Building on dependent normalized random measures, we consider a prior distribution for a collection of discrete random…

统计方法学 · 统计学 2022-06-01 Mario Beraha , Jim E. Griffin

The size distribution of land plots is a result of land allocation processes in the past. In the absence of regulation this is a Markov process leading an equilibrium described by a probabilistic equation used commonly in the insurance and…

物理与社会 · 物理学 2019-12-10 Pavel Exner , Petr Šeba

Many inverse problems focus on recovering a quantity of interest that is a priori known to exhibit either discontinuous or smooth behavior. Within the Bayesian approach to inverse problems, such structural information can be encoded using…

统计计算 · 统计学 2024-07-16 Angelina Senchukova , Felipe Uribe , Lassi Roininen

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

Markov chains for probability distributions related to matrix product states and 1D Hamiltonians are introduced. With appropriate 'inverse temperature' schedules, these chains can be combined into a random approximation scheme for ground…

强关联电子 · 物理学 2014-05-14 S. Iblisdir

A large number of statistical models are "doubly-intractable": the likelihood normalising term, which is a function of the model parameters, is intractable, as well as the marginal likelihood (model evidence). This means that standard…

统计方法学 · 统计学 2015-12-11 Anne-Marie Lyne , Mark Girolami , Yves Atchadé , Heiko Strathmann , Daniel Simpson

In a general setting we solve the following inverse problem: Given a positive operators $R$, acting on measurable functions on a fixed measure space $(X,\mathcal B_X)$, we construct an associated Markov chain. Specifically, starting with a…

概率论 · 数学 2016-06-27 Daniel Alpay , Palle Jorgensen , Izchak Lewkowicz

In this paper, we adopt a nonparametric Bayesian approach and investigate the asymptotic behavior of the posterior distribution in continuous time and general state space semi-Markov processes. In particular, we obtain posterior…

统计理论 · 数学 2019-06-14 V Barbu , Ghislaine Gayraud , N. Limnios , I. Votsi

We consider continuous--time Markov kinetics with a finite number of states and a given positive equilibrium distribution P*. For an arbitrary probability distribution $P$ we study the possible right hand sides, dP/dt, of the Kolmogorov…

化学物理 · 物理学 2013-01-14 A. N. Gorban

Balancing treatment allocation for influential covariates is critical in clinical trials. This has become increasingly important as more and more biomarkers are found to be associated with different diseases in translational research…

统计理论 · 数学 2012-10-18 Yanqing Hu , Feifang Hu

Representations based on random walks can exploit discrete data distributions for clustering and classification. We extend such representations from discrete to continuous distributions. Transition probabilities are now calculated using a…

机器学习 · 计算机科学 2012-12-12 Chen-Hsiang Yeang , Martin Szummer

We formulate a probabilistic Markov property in discrete time under a dynamic risk framework with minimal assumptions. This is useful for recursive solutions to risk-sensitive versions of dynamic optimisation problems such as optimal…

最优化与控制 · 数学 2022-09-05 Tomasz Kosmala , Randall Martyr , John Moriarty

We prove a intertwining relation (or Markov duality) between the $(q,\mu,\nu)$-Boson process and $(q,\mu,\nu)$-TASEP, two discrete time Markov chains introduced by Povolotsky. Using this and a variant of the coordinate Bethe ansatz we…

概率论 · 数学 2014-01-15 Ivan Corwin

Diffusion models (DMs) have recently shown outstanding capabilities in modeling complex image distributions, making them expressive image priors for solving Bayesian inverse problems. However, most existing DM-based methods rely on…

图像与视频处理 · 电气工程与系统科学 2024-11-08 Zihui Wu , Yu Sun , Yifan Chen , Bingliang Zhang , Yisong Yue , Katherine L. Bouman

For a random variable with a unimodal distribution and finite second moment Gau\ss \, (1823) proved a sharp bound on the probability of the random variable to be outside a symmetric interval around its mode. An alternative proof for it is…

概率论 · 数学 2023-12-12 Chris A. J. Klaassen