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相关论文: Ensemble of causal trees

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Geometry of networks endowed with a causal structure is discussed using the conventional framework of equilibrium statistical mechanics. The popular growing network models appear as particular causal models. We focus on a class of tree…

统计力学 · 物理学 2009-11-07 P. Bialas , Z. Burda , J. Jurkiewicz , A. Krzywicki

Growing networks have a causal structure. We show that the causality strongly influences the scaling and geometrical properties of the network. In particular the average distance between nodes is smaller for causal networks than for…

无序系统与神经网络 · 物理学 2009-11-11 P. Bialas , Z. Burda , B. Waclaw

We introduce an ensemble of infinite causal triangulations, called the uniform infinite causal triangulation, and show that it is equivalent to an ensemble of infinite trees, the uniform infinite planar tree. It is proved that in both cases…

数学物理 · 物理学 2010-04-22 Bergfinnur Durhuus , Thordur Jonsson , John F. Wheater

Real-world networks grow over time; statistical models based on node exchangeability are not appropriate. Instead of constraining the structure of the \textit{distribution} of edges, we propose that the relevant symmetries refer to the…

社会与信息网络 · 计算机科学 2025-04-02 Gecia Bravo-Hermsdorff , Lee M. Gunderson , Kayvan Sadeghi

To each sequence $(a_n)$ of positive real numbers we associate a growing sequence $(T_n)$ of continuous trees built recursively by gluing at step $n$ a segment of length $a_n$ on a uniform point of the pre-existing tree, starting from a…

概率论 · 数学 2016-06-22 Bénédicte Haas

In this article a collection of random self-similar fractal dendrites is constructed, and their Hausdorff dimension is calculated. Previous results determining this quantity for random self-similar structures have relied on geometrical…

概率论 · 数学 2012-10-23 David A. Croydon

The study of causal structure in complex systems has gained increasing attention, with many recent studies exploring causal networks that capture cause-effect relationships across diverse fields. Despite increasing empirical evidence…

物理与社会 · 物理学 2025-02-26 Jiazhen Liu , Kunal Tamang , Dashun Wang , Chaoming Song

This paper considers the problem of invoking auxiliary, unobservable variables to facilitate the structuring of causal tree models for a given set of continuous variables. Paralleling the treatment of bi-valued variables in [Pearl 1986], we…

人工智能 · 计算机科学 2013-04-11 Lei Xu , Judea Pearl

We define generic ensembles of infinite trees. These are limits as $N\to\infty$ of ensembles of finite trees of fixed size $N$, defined in terms of a set of branching weights. Among these ensembles are those supported on trees with vertices…

数学物理 · 物理学 2009-11-11 Bergfinnur Durhuus , Thordur Jonsson , John F. Wheater

We study a model of random $\mathcal{R}$-enriched trees that is based on weights on the $\mathcal{R}$-structures and allows for a unified treatment of a large family of random discrete structures. We establish distributional limits…

概率论 · 数学 2018-12-12 Benedikt Stufler

A learning algorithm is presented which given the structure of a causal tree, will estimate its link probabilities by sequential measurements on the leaves only. Internal nodes of the tree represent conceptual (hidden) variables…

人工智能 · 计算机科学 2013-04-12 Igor Roizer , Judea Pearl

Using generating functions techniques we develop a relation between the Hausdorff and spectral dimension of trees with a unique infinite spine. Furthermore, it is shown that if the outgrowths along the spine are independent and identically…

统计力学 · 物理学 2012-06-22 Sigurdur Orn Stefansson , Stefan Zohren

We study a model of growing planar tree graphs where in each time step we separate the tree into two components by splitting a vertex and then connect the two pieces by inserting a new link between the daughter vertices. This model…

统计力学 · 物理学 2009-11-13 Francois David , Mark Dukes , Thordur Jonsson , Sigurdur Orn Stefansson

The relationship between algebraic geometry and the inferential framework of the Bayesian Networks with hidden variables has now been fruitfully explored and exploited by a number of authors. More recently the algebraic formulation of…

统计方法学 · 统计学 2007-09-24 Eva Riccomagno , Jim Q Smith

We revisit the size distribution of finite components in infinite Configuration Model networks. We provide an elementary combinatorial proof about the sizes of birth-death trees which is more intuitive than previous proofs. We use this to…

定量方法 · 定量生物学 2017-10-27 Joel C. Miller

Bennett, Iosevich and Taylor proved that compact subsets of ${\Bbb R}^d$, $d \ge 2$, of Hausdorff dimensions greater than $\frac{d+1}{2}$ contain chains of arbitrary length with gaps in a non-trivial interval. In this paper we generalize…

经典分析与常微分方程 · 数学 2019-03-08 Alex Iosevich , Krystal Taylor

We study random unrooted plane trees with $n$ vertices sampled according to the weights corresponding to the vertex-degrees. Our main result shows that if the generating series of the weights has positive radius of convergence, then this…

概率论 · 数学 2018-09-17 Leon Ramzews , Benedikt Stufler

Causal discovery algorithms aim at untangling complex causal relationships from data. Here, we study causal discovery and inference methods based on staged tree models, which can represent complex and asymmetric causal relationships between…

统计方法学 · 统计学 2023-03-02 Manuele Leonelli , Gherardo Varando

This PhD thesis contains several contributions to the field of statistical causal modeling. Statistical causal models are statistical models embedded with causal assumptions that allow for the inference and reasoning about the behavior of…

机器学习 · 统计学 2021-10-05 Martin Emil Jakobsen

This paper develops a framework for identification, estimation, and inference on the causal mechanisms driving endogenous social network formation. Identification is challenging because of unobserved confounders and reverse causality;…

计量经济学 · 经济学 2026-04-21 Maximilian Kasy , Elizabeth Linos , Sanaz Mobasseri
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