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We present a novel approach to detecting and utilizing symmetries in probabilistic graphical models with two main contributions. First, we present a scalable approach to computing generating sets of permutation groups representing the…

人工智能 · 计算机科学 2012-06-29 Mathias Niepert

Adaptive Markov chain Monte Carlo (MCMC) algorithms, which automatically tune their parameters based on past samples, have proved extremely useful in practice. The self-tuning mechanism makes them `non-Markovian', which means that their…

概率论 · 数学 2024-08-28 Pietari Laitinen , Matti Vihola

In the Markov paging model, one assumes that page requests are drawn from a Markov chain over the pages in memory, and the goal is to maintain a fast cache that suffers few page faults in expectation. While computing the optimal online…

数据结构与算法 · 计算机科学 2026-05-26 Chirag Pabbaraju , Ali Vakilian

In this paper, we present a method for reducing a regular, discrete-time Markov chain (DTMC) to another DTMC with a given, typically much smaller number of states. The cost of reduction is defined as the Kullback-Leibler divergence rate…

系统与控制 · 计算机科学 2017-05-08 Bernhard C. Geiger , Tatjana Petrov , Gernot Kubin , Heinz Koeppl

The possibility of flexibly assigning spectrum resources with channels of different sizes greatly improves the spectral efficiency of optical networks, but can also lead to unwanted spectrum fragmentation.We study this problem in a scenario…

网络与互联网体系结构 · 计算机科学 2018-04-30 Alexander Erreygers , Cristina Rottondi , Giacomo Verticale , Jasper De Bock

We elaborate the idea behind Markov chain Monte Carlo (MCMC) methods in a mathematically coherent, yet simple and understandable way. To this end, we proof a pivotal convergence theorem for finite Markov chains and a minimal version of the…

统计理论 · 数学 2019-07-30 Tobias Siems

We compare different analytical and numerical methods for studying the partitions of a finite system into fragments. We propose a new numerical method of exploring the partition space by generating the Markov chains of partitions based on…

数学物理 · 物理学 2009-10-31 A. S. Botvina , A. D. Jackson , I. N. Mishustin

We propose a method for improving approximate inference methods that corrects for the influence of loops in the graphical model. The method is applicable to arbitrary factor graphs, provided that the size of the Markov blankets is not too…

人工智能 · 计算机科学 2011-11-10 Joris Mooij , Bert Kappen

In this paper, we introduce Max Markov Chain (MMC), a novel representation for a useful subset of High-order Markov Chains (HMCs) with sparse correlations among the states. MMC is parsimony while retaining the expressiveness of HMCs. Even…

人工智能 · 计算机科学 2022-11-04 Yu Zhang , Mitchell Bucklew

Markov chains are a natural and well understood tool for describing one-dimensional patterns in time or space. We show how to infer $k$-th order Markov chains, for arbitrary $k$, from finite data by applying Bayesian methods to both…

统计理论 · 数学 2009-11-13 Christopher C. Strelioff , James P. Crutchfield , Alfred W. Hubler

Many modern techniques employed in physics, such a computation of path integrals, rely on random walks on graphs that can be represented as Markov chains. Traditionally, estimates of running times of such sampling algorithms are computed…

统计力学 · 物理学 2015-06-30 Martin Mihelich , Berengere Dubrulle , Didier Paillard , Davide Faranda , Quentin Kral

In this paper, we propose an approach to obtain reduced-order models of Markov chains. Our approach is composed of two information-theoretic processes. The first is a means of comparing pairs of stationary chains on different state spaces,…

信息论 · 计算机科学 2019-05-01 Isaac J. Sledge , Jose C. Principe

In parameter estimation problems one computes a posterior distribution over uncertain parameters defined jointly by a prior distribution, a model, and noisy data. Markov Chain Monte Carlo (MCMC) is often used for the numerical solution of…

The particle Gibbs sampler is a Markov chain Monte Carlo (MCMC) algorithm to sample from the full posterior distribution of a state-space model. It does so by executing Gibbs sampling steps on an extended target distribution defined on the…

统计计算 · 统计学 2015-07-29 Nicolas Chopin , Sumeetpal S. Singh

This book is an introduction to quantum Markov chains and explains how this concept is connected to the question of how well a lost quantum mechanical system can be recovered from a correlated subsystem. To achieve this goal, we strengthen…

量子物理 · 物理学 2020-05-28 David Sutter

When the state space of a discrete state space positive recurrent Markov chain is infinite or very large, it becomes necessary to truncate the state space in order to facilitate numerical computation of the stationary distribution. This…

概率论 · 数学 2025-05-07 Peter W. Glynn , Zeyu Zheng

Markov chain Monte Carlo (MCMC) methods are often used in clustering since they guarantee asymptotically exact expectations in the infinite-time limit. In finite time, though, slow mixing often leads to poor performance. Modern computing…

统计方法学 · 统计学 2022-02-24 Tin D. Nguyen , Brian L. Trippe , Tamara Broderick

Matrix multiplication is a fundamental building block for large scale computations arising in various applications, including machine learning. There has been significant recent interest in using coding to speed up distributed matrix…

信息论 · 计算机科学 2019-05-17 Wei-Ting Chang , Ravi Tandon

We present a new framework to derandomise certain Markov chain Monte Carlo (MCMC) algorithms. As in MCMC, we first reduce counting problems to sampling from a sequence of marginal distributions. For the latter task, we introduce a method…

数据结构与算法 · 计算机科学 2023-04-05 Weiming Feng , Heng Guo , Chunyang Wang , Jiaheng Wang , Yitong Yin

The widespread use of Markov Chain Monte Carlo (MCMC) methods for high-dimensional applications has motivated research into the scalability of these algorithms with respect to the dimension of the problem. Despite this, numerous problems…

统计计算 · 统计学 2024-10-21 Ardjen Pengel , Jun Yang , Zhou Zhou
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