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Contagion processes are strongly linked to the network structures on which they propagate, and learning these structures is essential for understanding and intervention on complex network processes such as epidemics and (mis)information…

社会与信息网络 · 计算机科学 2019-08-12 Caitlin Gray , Lewis Mitchell , Matthew Roughan

Despite major methodological developments, Bayesian inference for Gaussian graphical models remains challenging in high dimension due to the tremendous size of the model space. This article proposes a method to infer the marginal and…

统计方法学 · 统计学 2018-04-10 Gwenaël G. R. Leday , Sylvia Richardson

We introduce a random partition model for Bayesian nonparametric regression. The model is based on infinitely-many disjoint regions of the range of a latent covariate-dependent Gaussian process. Given a realization of the process, the…

统计方法学 · 统计学 2013-01-04 George Karabatsos , Stephen G. Walker

Converging evidence indicates that the heterogeneity of cognitive profiles may arise through detectable alternations in brain functions. Particularly, brain functional connectivity, measured under resting and cognitive states, characterizes…

应用统计 · 统计学 2023-02-22 Tianqi Chen , Chichun Tan , Hongyu Zhao , Todd Constable , Sarah Yip , Yize Zhao

Classically, Bayesian clustering interprets each component of a mixture model as a cluster. The inferred clustering posterior is highly sensitive to any inaccuracies in the kernel within each component. As this kernel is made more flexible,…

统计方法学 · 统计学 2025-12-12 David Buch , Miheer Dewaskar , David B. Dunson

Recently, there has been increased interest in fusing multimodal imaging to better understand brain organization. Specifically, accounting for knowledge of anatomical pathways connecting brain regions should lead to desirable outcomes such…

应用统计 · 统计学 2018-03-02 Ixavier A. Higgins , Suprateek Kundu , Ying Guo

There are few inference methods available to accommodate covariate-dependent anisotropy in point process models. To address this, we propose an extended Bayesian MCMC approach for Neyman-Scott cluster processes. We focus on anisotropy and…

统计方法学 · 统计学 2025-05-16 Jiří Dvořák , Emily Ewers , Tomáš Mrkvička , Claudia Redenbach

This paper presents a Bayesian approach to learning the connectivity structure of a group of neurons from data on configuration frequencies. A major objective of the research is to provide statistical tools for detecting changes in firing…

机器学习 · 计算机科学 2013-02-18 Kathryn Blackmond Laskey , Laura Martignon

A Bayesian approach to the classification problem is proposed in which random partitions play a central role. It is argued that the partitioning approach has the capacity to take advantage of a variety of large-scale spatial structures, if…

统计理论 · 数学 2007-06-13 Marc A. Coram

In this paper, we introduce a novel causal structure learning algorithm called Endogenous and Exogenous Markov Blankets Intersection (EEMBI), which combines the properties of Bayesian networks and Structural Causal Models (SCM).…

机器学习 · 统计学 2023-07-04 Yiran Dong , Chuanhou Gao

Bi-clustering is a useful approach in analyzing biological data when observations come from heterogeneous groups and have a large number of features. We outline a general Bayesian approach in tackling bi-clustering problems in moderate to…

应用统计 · 统计学 2021-02-11 Han Yan , Jiexing Wu , Yang Li , Jun S. Liu

The problem of detecting the Out-of-Distribution (OoD) inputs is of paramount importance for Deep Neural Networks. It has been previously shown that even Deep Generative Models that allow estimating the density of the inputs may not be…

机器学习 · 统计学 2023-01-02 Misha Glazunov , Apostolis Zarras

Stochastic blockmodels and variants thereof are among the most widely used approaches to community detection for social networks and relational data. A stochastic blockmodel partitions the nodes of a network into disjoint sets, called…

统计方法学 · 统计学 2015-09-16 Diego Franco Saldana , Yi Yu , Yang Feng

Previous algorithms for the construction of Bayesian belief network structures from data have been either highly dependent on conditional independence (CI) tests, or have required an ordering on the nodes to be supplied by the user. We…

人工智能 · 计算机科学 2013-03-08 Moninder Singh , Marco Valtorta

Decoding complex relationships among large numbers of variables with relatively few observations is one of the crucial issues in science. One approach to this problem is Gaussian graphical modeling, which describes conditional independence…

统计方法学 · 统计学 2019-04-26 A. Mohammadi , E. C. Wit

Learning the graphical structure of Bayesian networks is key to describing data-generating mechanisms in many complex applications but poses considerable computational challenges. Observational data can only identify the equivalence class…

机器学习 · 统计学 2023-06-28 Enrico Giudice , Jack Kuipers , Giusi Moffa

We present a new Markov chain Monte Carlo method for estimating posterior probabilities of structural features in Bayesian networks. The method draws samples from the posterior distribution of partial orders on the nodes; for each sampled…

机器学习 · 计算机科学 2012-02-20 Teppo Niinimaki , Pekka Parviainen , Mikko Koivisto

Determining subgroups that respond especially well (or poorly) to specific interventions (medical or policy) requires new supervised learning methods tailored specifically for causal inference. Bayesian Causal Forest (BCF) is a recent…

机器学习 · 统计学 2022-09-16 Nikolay Krantsevich , Jingyu He , P. Richard Hahn

We generalize the stochastic block model to the important case in which edges are annotated with weights drawn from an exponential family distribution. This generalization introduces several technical difficulties for model estimation,…

机器学习 · 统计学 2013-05-27 Christopher Aicher , Abigail Z. Jacobs , Aaron Clauset

Recent advances on overfitting Bayesian mixture models provide a solid and straightforward approach for inferring the underlying number of clusters and model parameters in heterogeneous datasets. The applicability of such a framework in…

统计方法学 · 统计学 2018-03-29 Panagiotis Papastamoulis