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This paper introduces an extension to the normal distribution through the polar method to capture bimodality and asymmetry, which are often observed characteristics of empirical data. The later two features are entirely controlled by a…

统计理论 · 数学 2020-08-31 Masoud Faridi , Majid Jafari Khaledi

State space models have long played an important role in signal processing. The Gaussian case can be treated algorithmically using the famous Kalman filter. Similarly since the 1970s there has been extensive application of Hidden Markov…

统计理论 · 数学 2007-06-13 Peter Bickel , Yaacov Ritov , Tobias Rydén

We introduce a sharpness functional for probabilistic models that quantifies sharpness as an intrinsic property of the probability distribution. The measure is derived based on a rank-based concentration principle that tracks upward…

统计方法学 · 统计学 2026-04-03 Pekka Syrjänen

This paper presents a Markov chain Monte Carlo method to generate approximate posterior samples in retrospective multiple changepoint problems where the number of changes is not known in advance. The method uses conjugate models whereby the…

统计计算 · 统计学 2010-11-15 Jason Wyse , Nial Friel

Macdonald processes are certain probability measures on two-dimensional arrays of interlacing particles introduced by Borodin and Corwin (arXiv:1111.4408 [math.PR]). They are defined in terms of nonnegative specializations of the Macdonald…

概率论 · 数学 2013-05-24 Alexei Borodin , Leonid Petrov

We derive the class of normalized generalized Gamma processes from Poisson-Kingman models (Pitman, 2003) with tempered alfa-stable mixing distribution. Relying on this construction it can be shown that in Bayesian nonparametrics, results on…

概率论 · 数学 2007-11-14 Annalisa Cerquetti

We propose Markov two-components processes (M2CP) as a probabilistic model of asynchronous systems based on the trace semantics for concurrency. Considering an asynchronous system distributed over two sites, we introduce concepts and tools…

系统与控制 · 计算机科学 2015-07-01 Samy Abbes

For Markov processes with absorption, we provide general criteria ensuring the existence and the exponential non-uniform convergence in total variation norm to a quasi-stationary distribution. We also characterize a subset of its domain of…

概率论 · 数学 2022-10-24 Nicolas Champagnat , Denis Villemonais

This work introduces a novel cause-effect relation in Markov decision processes using the probability-raising principle. Initially, sets of states as causes and effects are considered, which is subsequently extended to regular path…

计算机科学中的逻辑 · 计算机科学 2024-08-07 Christel Baier , Jakob Piribauer , Robin Ziemek

In the context of nonparametric Bayesian estimation a Markov chain Monte Carlo algorithm is devised and implemented to sample from the posterior distribution of the drift function of a continuously or discretely observed one-dimensional…

统计计算 · 统计学 2017-06-08 Frank van der Meulen , Moritz Schauer , Harry van Zanten

Sampling from the posterior is a key technical problem in Bayesian statistics. Rigorous guarantees are difficult to obtain for Markov Chain Monte Carlo algorithms of common use. In this paper, we study an alternative class of algorithms…

统计理论 · 数学 2024-08-26 Andrea Montanari , Yuchen Wu

Markov models lie at the interface between statistical independence in a probability distribution and graph separation properties. We review model selection and estimation in directed and undirected Markov models with Gaussian…

统计方法学 · 统计学 2020-09-03 Irene Córdoba , Concha Bielza , Pedro Larrañaga

The Markov assumption in Markov Decision Processes (MDPs) is fundamental in reinforcement learning, influencing both theoretical research and practical applications. Existing methods that rely on the Bellman equation benefit tremendously…

统计方法学 · 统计学 2024-09-24 Chuyun Ye , Lixing Zhu , Ruoqing Zhu

We present a short introduction into the framework of piecewise deterministic Markov processes. We illustrate the abstract mathematical setting with a series of examples related to dispersal of biological systems, cell cycle models, gene…

概率论 · 数学 2015-12-08 Ryszard Rudnicki , Marta Tyran-Kaminska

We consider a general method for the approximation of the distribution of a process conditioned to not hit a given set. Existing methods are based on particle system that are failable, in the sense that, in many situations , they are not…

概率论 · 数学 2016-06-30 William Oçafrain , Denis Villemonais

Studying the subexponential convergence towards equilibrium of a strong Markov process, we exhibit an intermediate Lyapunov condition equivalent to the control of some moment of a hitting time. This provides a link, similar (although more…

概率论 · 数学 2021-08-03 Armand Bernou

In this paper we extend the predicate logic introduced in [Beauquier et al. 2002] in order to deal with Semi-Markov Processes. We prove that with respect to qualitative probabilistic properties, model checking is decidable for this logic…

计算机科学中的逻辑 · 计算机科学 2007-05-23 Ruggero Lanotte , Daniele Beauquier

Lifted probabilistic inference algorithms have been successfully applied to a large number of symmetric graphical models. Unfortunately, the majority of real-world graphical models is asymmetric. This is even the case for relational…

人工智能 · 计算机科学 2014-12-02 Guy Van den Broeck , Mathias Niepert

With a sequence of regressions, one may generate joint probability distributions. One starts with a joint, marginal distribution of context variables having possibly a concentration graph structure and continues with an ordered sequence of…

统计理论 · 数学 2017-02-03 Kayvan Sadeghi , Nanny Wermuth

In Bayesian inference, predictive distributions are typically in the form of samples generated via Markov chain Monte Carlo (MCMC) or related algorithms. In this paper, we conduct a systematic analysis of how to make and evaluate…

统计方法学 · 统计学 2020-06-25 Fabian Krüger , Sebastian Lerch , Thordis L. Thorarinsdottir , Tilmann Gneiting
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