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Motivated by techniques developed in recent progress on lower bounds for sublinear time algorithms (Behnezhad, Roghani and Rubinstein, STOC 2023, FOCS 2023, and STOC 2024) we introduce and study a new class of randomized algorithmic…

数据结构与算法 · 计算机科学 2026-03-19 Amir Azarmehr , Soheil Behnezhad , Alma Ghafari , Madhu Sudan

This paper considers the problem of defining distributions over graphical structures. We propose an extension of the hyper Markov properties of Dawid and Lauritzen [Ann. Statist. 21 (1993) 1272-1317], which we term structural Markov…

统计理论 · 数学 2020-04-28 Simon Byrne , A. Philip Dawid

Markov networks are probabilistic graphical models that employ undirected graphs to depict conditional independence relationships among variables. Our focus lies in constraint-based structure learning, which entails learning the undirected…

机器学习 · 计算机科学 2024-03-14 Tuukka Korhonen , Fedor V. Fomin , Pekka Parviainen

Variable-length Markov chains on finite quivers provide a natural framework for context-dependent stochastic growth under incidence constraints. I study quiver-valued variable-length Markov chains observed through finite boundary windows…

概率论 · 数学 2026-04-14 Oleg Kiriukhin

We consider a type of Markov property for set-indexed processes which is satisfied by all processes with independent increments and which allows us to introduce a transition system theory leading to the construction of the process. A…

概率论 · 数学 2007-05-23 Raluca Balan , Gail Ivanoff

The relationship between statistical dependency and causality lies at the heart of all statistical approaches to causal inference. Recent results in the ChaLearn cause-effect pair challenge have shown that causal directionality can be…

机器学习 · 计算机科学 2014-12-22 Gianluca Bontempi , Maxime Flauder

We study weak convergence of empirical processes of dependent data $(X_i)_{i\geq0}$, indexed by classes of functions. Our results are especially suitable for data arising from dynamical systems and Markov chains, where the central limit…

概率论 · 数学 2014-07-07 Herold Dehling , Olivier Durieu , Marco Tusche

We consider a family of Markov chains whose transition dynamics are affected by model parameters. Understanding the parametric dependence of (complex) performance measures of such Markov chains is often of significant interest. The…

概率论 · 数学 2017-07-14 Chang-Han Rhee , Peter Glynn

This paper explores the impact of perturbations of copulas on dependence properties of the Markov chains they generate. We use an observation that is valid for convex combinations of copulas to establish sufficient conditions for the mixing…

统计理论 · 数学 2021-06-11 Martial Longla , Mathias Muia Nthiani , Fidel Djongreba Ndikwa

We propose a method for learning Markov network structures for continuous data without invoking any assumptions about the distribution of the variables. The method makes use of previous work on a non-parametric estimator for mutual…

机器学习 · 计算机科学 2017-08-09 Janne Leppä-aho , Santeri Räisänen , Xiao Yang , Teemu Roos

We discuss a class of chain graph models for categorical variables defined by what we call a multivariate regression chain graph Markov property. First, the set of local independencies of these models is shown to be Markov equivalent to…

统计方法学 · 统计学 2011-07-14 Giovanni M. Marchetti , Monia Lupparelli

We consider a sequence of Markov chains $(\mathcal X^n)_{n=1,2,...}$ with $\mathcal X^n = (X^n_\sigma)_{\sigma\in\mathcal T}$, indexed by the full binary tree $\mathcal T = \mathcal T_0 \cup \mathcal T_1 \cup ...$, where $\mathcal T_k$ is…

概率论 · 数学 2014-06-17 Peter Czuppon , Peter Pfaffelhuber

This article proposes a new generalization of the Multivariate Markov Chains (MMC) model. The future values of a Markov chain commonly depend on only the past values of the chain in an autoregressive fashion. The generalization proposed in…

统计方法学 · 统计学 2022-02-02 Carolina Vasconcelos , Bruno Damásio

Stochastic gradient Markov Chain Monte Carlo (SGMCMC) is considered the gold standard for Bayesian inference in large-scale models, such as Bayesian neural networks. Since practitioners face speed versus accuracy tradeoffs in these models,…

机器学习 · 计算机科学 2022-07-19 Antonios Alexos , Alex Boyd , Stephan Mandt

Causal inference methods based on conditional independence construct Markov equivalent graphs, and cannot be applied to bivariate cases. The approaches based on independence of cause and mechanism state, on the contrary, that causal…

机器学习 · 计算机科学 2021-08-04 Nataliya Sokolovska , Pierre-Henri Wuillemin

Classical linear regression is considered for a case when regression parameters depend on the external random environment. The last is described as a continuous time Markov chain with finite state space. Here the expected sojourn times in…

统计方法学 · 统计学 2019-01-29 Alexander M. Andronov , Nadezda Spiridovska

A classical random walk $(S_t, t\in\mathbb{N})$ is defined by $S_t:=\displaystyle\sum_{n=0}^t X_n$, where $(X_n)$ are i.i.d. When the increments $(X_n)_{n\in\mathbb{N}}$ are a one-order Markov chain, a short memory is introduced in the…

概率论 · 数学 2012-08-17 Peggy Cénac , Brigitte Chauvin , Samuel Herrmann , Pierre Vallois

A Markovian bridge is a probability measure taken from a disintegration of the law of an initial part of the path of a Markov process given its terminal value. As such, Markovian bridges admit a natural parameterization in terms of the…

概率论 · 数学 2011-03-15 Loïc Chaumont , Gerónimo Uribe Bravo

A wide class of ``counting'' problems have been studied in Computer Science. Three typical examples are the estimation of - (i) the permanent of an $n\times n$ 0-1 matrix, (ii) the partition function of certain $n-$ particle Statistical…

概率论 · 数学 2007-05-23 Ravi Kannan

We develop Markov categories as a framework for synthetic probability and statistics, following work of Golubtsov as well as Cho and Jacobs. This means that we treat the following concepts in purely abstract categorical terms: conditioning…

统计理论 · 数学 2020-06-02 Tobias Fritz