中文
相关论文

相关论文: A generating function method for the average-case …

200 篇论文

We destroy a finite tree of size $n$ by cutting its edges one after the other and in uniform random order. Informally, the associated cut-tree describes the genealogy of the connected components created by this destruction process. We…

概率论 · 数学 2016-07-20 Gabriel Berzunza

The minimum linear arrangement problem on a network consists of finding the minimum sum of edge lengths that can be achieved when the vertices are arranged linearly. Although there are algorithms to solve this problem on trees in polynomial…

数据分析、统计与概率 · 物理学 2017-12-14 Juan Luis Esteban , Ramon Ferrer-i-Cancho , Carlos Gómez-Rodríguez

This paper investigates the impact of query topology on the difficulty of answering conjunctive queries in the presence of OWL 2 QL ontologies. Our first contribution is to clarify the worst-case size of positive existential (PE),…

人工智能 · 计算机科学 2015-05-14 Meghyn Bienvenu , Stanislav Kikot , Vladimir Podolskii

Iterative methods for computing matrix functions have been extensively studied and their convergence speed can be significantly improved with the right tuning of parameters and by mixing different iteration types. Handtuning the design…

机器学习 · 计算机科学 2025-07-17 Sungyoon Kim , Rajat Vadiraj Dwaraknath , Longling geng , Mert Pilanci

In this paper we consider inhomogeneous Galton-Watson trees, and derive various moments for such processes: the number of vertices, the number of leaves, and the height of the tree. Also we make a simple condition of finiteness. We use…

应用统计 · 统计学 2025-05-09 Jakob G. Rasmussen , Troels Pedersen , Rasmus L. Olsen

We propose a simple algorithm which produces a new category of networks, high dimensional random Apollonian networks, with small-world and scale-free characteristics. We derive analytical expressions for their degree distributions and…

其他凝聚态物理 · 物理学 2009-11-11 Zhongzhi Zhang , Lili Rong , Francesc Comellas

We study the profile $X_{n,k}$ of random search trees including binary search trees and $m$-ary search trees. Our main result is a functional limit theorem of the normalized profile $X_{n,k}/\mathbb{E}X_{n,k}$ for $k=\lfloor\alpha\log…

概率论 · 数学 2008-01-28 Michael Drmota , Svante Janson , Ralph Neininger

Probabilities of causation (PoCs), such as the probability of necessity and sufficiency (PNS), are important tools for decision making but are generally not point identifiable. Existing work has derived bounds for these quantities using…

统计方法学 · 统计学 2026-02-20 Tianyuan Cheng , Ruirui Mao , Judea Pearl , Ang Li

To effectively use large language models (LLMs) for real-world queries, it is imperative that they generalize to the long-tail distribution, i.e. rare examples where models exhibit low confidence. In this work, we take the first step…

计算与语言 · 计算机科学 2024-10-07 Huihan Li , Yuting Ning , Zeyi Liao , Siyuan Wang , Xiang Lorraine Li , Ximing Lu , Wenting Zhao , Faeze Brahman , Yejin Choi , Xiang Ren

The Robinson-Foulds (RF) distance is by far the most widely used measure of dissimilarity between trees. Although the distribution of these distances has been investigated for twenty years, an algorithm that is explicitly polynomial time…

种群与进化 · 定量生物学 2008-10-07 David Bryant , Mike Steel

The Random Satisfiability problem has been intensively studied for decades. For a number of reasons the focus of this study has mostly been on the model, in which instances are sampled uniformly at random from a set of formulas satisfying…

离散数学 · 计算机科学 2019-05-14 Oleksii Omelchenko , Andrei A. Bulatov

We investigate the random continuous trees called L\'evy trees, which are obtained as scaling limits of discrete Galton-Watson trees. We give a mathematically precise definition of these random trees as random variables taking values in the…

概率论 · 数学 2007-05-23 Thomas Duquesne , Jean-Francois Le Gall

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

Probabilistic neurosymbolic learning seeks to integrate neural networks with symbolic programming. Many state-of-the-art systems rely on a reduction to the Probabilistic Weighted Model Counting Problem (PWMC), which requires computing a…

人工智能 · 计算机科学 2025-01-31 Thomas Jean-Michel Valentin , Luisa Sophie Werner , Pierre Genevès , Nabil Layaïda

We analyze the fine-grained connections between the average degree and the power-law degree distribution exponent in growing information networks. Our starting observation is a power-law degree distribution with a decreasing exponent and…

社会与信息网络 · 计算机科学 2017-01-03 Róbert Pálovics , András A. Benczúr

Sorting is a foundational problem in computer science that is typically employed on sequences or total orders. More recently, a more general form of sorting on partially ordered sets (or posets), where some pairs of elements are…

数据结构与算法 · 计算机科学 2022-06-03 Jishnu Roychoudhury , Jatin Yadav

We study the watermelon probabilities in the uniform spanning forests on the two-dimensional semi-infinite square lattice near either open or closed boundary to which the forests can or cannot be rooted, respectively. We derive universal…

数学物理 · 物理学 2023-02-03 Khaydar Nurligareev , Alexander Povolotsky

Traditional studies of memory for meaningful narratives focus on specific stories and their semantic structures but do not address common quantitative features of recall across different narratives. We introduce a statistical ensemble of…

The Dead Leaves Model (DLM) provides a random tessellation of $d$-space, representing the visible portions of fallen leaves on the ground when $d=2$. For $d=1$, we establish formulae for the intensity, two-point correlations, and asymptotic…

概率论 · 数学 2020-04-14 Mathew D. Penrose

Using a generating function approach, the correlation coefficients of four different graph-theoretical indices, namely the number of independent vertex subsets, the number of matchings, the number of subtrees and the Wiener index, are…

组合数学 · 数学 2007-05-23 Stephan Wagner