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Learning the directed acyclic graph (DAG) structure of a Bayesian network from observational data is a notoriously difficult problem for which many hardness results are known. In this paper we propose a provably polynomial-time algorithm…

机器学习 · 计算机科学 2019-06-04 Asish Ghoshal , Jean Honorio

Understanding causal relationships between variables is a fundamental problem with broad impact in numerous scientific fields. While extensive research has been dedicated to learning causal graphs from data, its complementary concept of…

机器学习 · 计算机科学 2024-03-12 Jiaqi Zhang , Kirankumar Shiragur , Caroline Uhler

Bayesian methods for learning Gaussian graphical models offer a principled framework for quantifying model uncertainty and incorporating prior knowledge. However, their scalability is constrained by the computational cost of jointly…

统计方法学 · 统计学 2025-08-28 Reza Mohammadi , Marit Schoonhoven , Lucas Vogels , S. Ilker Birbil

R\'enyi's information provides a theoretical foundation for tractable and data-efficient non-parametric density estimation, based on pair-wise evaluations in a reproducing kernel Hilbert space (RKHS). This paper extends this framework to…

机器学习 · 计算机科学 2022-03-09 Bo Hu , Shujian Yu , Jose C. Principe

Structure learning is essential for Bayesian networks (BNs) as it uncovers causal relationships, and enables knowledge discovery, predictions, inferences, and decision-making under uncertainty. Two novel algorithms, FSBN and SSBN, based on…

机器学习 · 计算机科学 2023-10-16 Minn Sein , Fu Shunkai

Gaussian Graphical Models (GGMs) have wide-ranging applications in machine learning and the natural and social sciences. In most of the settings in which they are applied, the number of observed samples is much smaller than the dimension…

机器学习 · 计算机科学 2020-03-10 Jonathan Kelner , Frederic Koehler , Raghu Meka , Ankur Moitra

We give a new consistent scoring function for structure learning of Bayesian networks. In contrast to traditional approaches to score-based structure learning, such as BDeu or MDL, the complexity penalty that we propose is data-dependent…

机器学习 · 计算机科学 2015-05-13 Eliot Brenner , David Sontag

Graph structure learning aims to learn connectivity in a graph from data. It is particularly important for many computer vision related tasks since no explicit graph structure is available for images for most cases. A natural way to…

计算机视觉与模式识别 · 计算机科学 2022-12-26 Yaohua Wang , FangYi Zhang , Ming Lin , Senzhang Wang , Xiuyu Sun , Rong Jin

Markov random fields are used to model high dimensional distributions in a number of applied areas. Much recent interest has been devoted to the reconstruction of the dependency structure from independent samples from the Markov random…

计算复杂性 · 计算机科学 2010-03-09 Guy Bresler , Elchanan Mossel , Allan Sly

Graph neural networks (GNNs) are a popular class of machine learning models whose major advantage is their ability to incorporate a sparse and discrete dependency structure between data points. Unfortunately, GNNs can only be used when such…

机器学习 · 计算机科学 2020-06-22 Luca Franceschi , Mathias Niepert , Massimiliano Pontil , Xiao He

Within the framework of Gaussian graphical models, a prior distribution for the underlying graph is introduced to induce a block structure in the adjacency matrix of the graph and learning relationships between fixed groups of variables. A…

统计方法学 · 统计学 2023-05-15 Alessandro Colombi , Raffaele Argiento , Lucia Paci , Alessia Pini

Bayesian networks are widely used to learn and reason about the dependence structure of discrete variables. However, they are only capable of formally encoding symmetric conditional independence, which in practice is often too strict to…

人工智能 · 计算机科学 2023-01-03 Manuele Leonelli , Gherardo Varando

The problem of structured matrix estimation has been studied mostly under strong noise dependence assumptions. This paper considers a general framework of noisy low-rank-plus-sparse matrix recovery, where the noise matrix may come from any…

机器学习 · 统计学 2025-04-07 Jinhang Chai , Jianqing Fan

We give the first efficient algorithm for learning the structure of an Ising model that tolerates independent failures; that is, each entry of the observed sample is missing with some unknown probability p. Our algorithm matches the…

数据结构与算法 · 计算机科学 2019-02-14 Surbhi Goel , Daniel M. Kane , Adam R. Klivans

Mutual independence is a key concept in statistics that characterizes the structural relationships between variables. Existing methods to investigate mutual independence rely on the definition of two competing models, one being nested into…

机器学习 · 统计学 2023-08-09 Guillaume Marrelec , Alain Giron

We study the problem of causal structure learning from data using optimal transport (OT). Specifically, we first provide a constraint-based method which builds upon lower-triangular monotone parametric transport maps to design conditional…

统计方法学 · 统计学 2023-05-30 Sina Akbari , Luca Ganassali , Negar Kiyavash

Information theoretic measures (e.g. the Kullback Liebler divergence and Shannon mutual information) have been used for exploring possibly nonlinear multivariate dependencies in high dimension. If these dependencies are assumed to follow a…

信息论 · 计算机科学 2017-07-12 Kevin R. Moon , Morteza Noshad , Salimeh Yasaei Sekeh , Alfred O. Hero

Maximal ancestral graphs (MAGs) have many desirable properties; in particular they can fully describe conditional independences from directed acyclic graphs (DAGs) in the presence of latent and selection variables. However, different MAGs…

组合数学 · 数学 2020-07-07 Zhongyi Hu , Robin Evans

Max-margin methods for binary classification such as the support vector machine (SVM) have been extended to the structured prediction setting under the name of max-margin Markov networks ($M^3N$), or more generally structural SVMs.…

机器学习 · 计算机科学 2020-07-29 Alex Nowak-Vila , Francis Bach , Alessandro Rudi

This monograph is an exposition on an exciting new technique known as spectral independence, which has been instrumental in analyzing the convergence rate of Markov Chain Monte Carlo (MCMC) algorithms. For a high-dimensional distribution…

离散数学 · 计算机科学 2025-09-18 Zongchen Chen , Daniel Stefankovic , Eric Vigoda