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Understanding the uncertainty of a neural network's (NN) predictions is essential for many purposes. The Bayesian framework provides a principled approach to this, however applying it to NNs is challenging due to large numbers of parameters…

机器学习 · 统计学 2020-02-27 Tim Pearce , Felix Leibfried , Alexandra Brintrup , Mohamed Zaki , Andy Neely

In Bayesian nonparametric inference, random discrete probability measures are commonly used as priors within hierarchical mixture models for density estimation and for inference on the clustering of the data. Recently, it has been shown…

统计理论 · 数学 2012-11-26 Stefano Favaro , Antonio Lijoi , Igor Prünster

Suppose that a compound Poisson process is observed discretely in time and assume that its jump distribution is supported on the set of natural numbers. In this paper we propose a non-parametric Bayesian approach to estimate the intensity…

统计理论 · 数学 2020-05-21 Shota Gugushvili , Ester Mariucci , Frank van der Meulen

Two long-standing problems with the post-Newtonian approximation for isolated slowly-moving systems in general relativity are: (i) the appearance at high post-Newtonian orders of divergent Poisson integrals, casting a doubt on the soundness…

广义相对论与量子宇宙学 · 物理学 2009-11-07 Olivier Poujade , Luc Blanchet

Sampling from complex target distributions is a challenging task fundamental to Bayesian inference. Parallel tempering (PT) addresses this problem by constructing a Markov chain on the expanded state space of a sequence of distributions…

统计计算 · 统计学 2023-01-18 Nikola Surjanovic , Saifuddin Syed , Alexandre Bouchard-Côté , Trevor Campbell

Deep kernel processes are a recently introduced class of deep Bayesian models that have the flexibility of neural networks, but work entirely with Gram matrices. They operate by alternately sampling a Gram matrix from a distribution over…

机器学习 · 统计学 2023-05-25 Sebastian Ober , Ben Anson , Edward Milsom , Laurence Aitchison

Many popular Bayesian nonparametric priors can be characterized in terms of exchangeable species sampling sequences. However, in some applications, exchangeability may not be appropriate. We introduce a {novel and probabilistically coherent…

This paper concerns the use of Markov chain Monte Carlo methods for posterior sampling in Bayesian nonparametric mixture models with normalized random measure priors. Making use of some recent posterior characterizations for the class of…

统计方法学 · 统计学 2013-10-03 Stefano Favaro , Yee Whye Teh

Reduced-Rank (RR) regression is a powerful dimensionality reduction technique but it overlooks any possible group configuration among the responses by assuming a low-rank structure on the entire coefficient matrix. Moreover, the temporal…

统计方法学 · 统计学 2025-12-22 Maria F. Pintado , Matteo Iacopini , Luca Rossini , Alexander Y. Shestopaloff

We present a unified framework to study threshold functions for the existence of solutions to linear systems of equations in random sets which includes arithmetic progressions, sum-free sets, $B_{h}[g]$-sets and Hilbert cubes. In…

组合数学 · 数学 2019-02-05 Juanjo Rué , Christoph Spiegel , Ana Zumalacárregui

We establish the general equivalence between rare event process for arbitrary continuous functions whose maximal values are achieved on non-trivial sets, and the entry times distribution for arbitrary measure zero sets. We then use it to…

动力系统 · 数学 2019-05-27 Fan Yang

In this paper we develop a functorial language of probabilistic morphisms and apply it to some basic problems in Bayesian nonparametrics. First we extend and unify the Kleisli category of probabilistic morphisms proposed by Lawvere and Giry…

统计理论 · 数学 2021-04-27 Jürgen Jost , Hông Vân Lê , Tat Dat Tran

Data on count processes arise in a variety of applications, including longitudinal, spatial and imaging studies measuring count responses. The literature on statistical models for dependent count data is dominated by models built from…

统计方法学 · 统计学 2013-10-08 Antonio Canale , David B. Dunson

In this paper we revisit a fundamental technical issue within the theory of stochastic approximation (SA) in a Markovian framework, first proposed in the book by Djereveckii and Fradkov (1981), and further developed in much detail in the…

Nested sampling (NS) computes parameter posterior distributions and makes Bayesian model comparison computationally feasible. Its strengths are the unsupervised navigation of complex, potentially multi-modal posteriors until a well-defined…

统计计算 · 统计学 2023-07-11 Johannes Buchner

Proximal Markov Chain Monte Carlo is a novel construct that lies at the intersection of Bayesian computation and convex optimization, which helped popularize the use of nondifferentiable priors in Bayesian statistics. Existing formulations…

统计计算 · 统计学 2023-01-24 Qiang Heng , Hua Zhou , Eric C. Chi

A new class of distributions, called as normal power series (NPS), which contains the normal one as a particular case, is introduced in this paper. This new class which is obtained by compounding the normal and power series distributions,…

统计方法学 · 统计学 2015-10-27 Eisa Mahmoudi , Hamed Mahmoodian

Bayesian methods constitute a popular approach for estimating the conditional independence structure in Gaussian graphical models, since they can quantify the uncertainty through the posterior distribution. Inference in this framework is…

统计方法学 · 统计学 2026-01-14 Marcus Gehrmann , Håkon Tjelmeland

The two-parameter Poisson--Dirichlet distribution is a probability distribution on the totality of positive decreasing sequences with sum 1 and hence considered to govern masses of a random discrete distribution. A characterization of the…

概率论 · 数学 2010-01-12 Kenji Handa

In many applications involving point pattern data, the Poisson process assumption is unrealistic, with the data exhibiting a more regular spread. Such a repulsion between events is exhibited by trees for example, because of competition for…

统计方法学 · 统计学 2015-04-07 Vinayak Rao , Ryan P. Adams , David B. Dunson