中文
相关论文

相关论文: Degree Distributions in Recursive Trees with Fitne…

200 篇论文

We study the asymptotic behavior of the maximum degree in the evolving tree model with a choice based on both degree and fitness of a vertex. The tree is constructed in the following recursive way. Each vertex is assigned a parameter to it…

概率论 · 数学 2020-12-15 Yury Malyshkin

Continuous-time branching processes describe the evolution of a population whose individuals generate a random number of children according to a birth process. Such branching processes can be used to understand preferential attachment…

We consider linear preferential attachment random trees with additive fitness, where fitness is defined as the random initial vertex attractiveness. We show that when the fitness distribution has positive bounded support, the weak local…

概率论 · 数学 2021-03-03 Tiffany Y. Y. Lo

In this paper, we study uniform rooted plane trees with given degree sequence. We show, under some natural hypotheses on the degree sequence, that these trees converge toward the so-called Inhomogeneous Continuum Random Tree after…

概率论 · 数学 2025-11-24 Gabriel Berzunza Ojeda , Cecilia Holmgren , Paul Thévenin

We extend the results of B. Bollobas, O. Riordan, J. Spencer, G. Tusnady, and Mori. We consider a model of random tree growth, where at each time unit a new node is added and attached to an already existing node chosen at random. The…

概率论 · 数学 2007-05-23 Anna Rudas

The recursive and hierarchical structure of full rooted trees is applicable to represent statistical models in various areas, such as data compression, image processing, and machine learning. In most of these cases, the full rooted tree is…

机器学习 · 统计学 2022-03-24 Yuta Nakahara , Shota Saito , Akira Kamatsuka , Toshiyasu Matsushima

Decision tree learning is increasingly being used for pointwise inference. Important applications include causal heterogenous treatment effects and dynamic policy decisions, as well as conditional quantile regression and design of…

机器学习 · 统计学 2024-02-08 Matias D. Cattaneo , Jason M. Klusowski , Peter M. Tian

We introduce a new model of preferential attachment with fitness, and establish a time reversed duality between the model and a system of branching-coalescing particles. Using this duality, we give a clear and concise explanation for the…

概率论 · 数学 2020-04-24 Nic Freeman , Jonathan Jordan

We study a random recursive tree model featuring complete redirection called the random friend tree and introduced by Saram\"aki and Kaski. Vertices are attached in a sequential manner one by one by selecting an existing target vertex and…

The shapes of branching trees have been linked to disease transmission patterns. In this paper we use the general Crump-Mode-Jagers branching process to model an outbreak of an infectious disease under mild assumptions. Introducing a new…

定量方法 · 定量生物学 2015-07-13 Giacomo Plazzotta , Caroline Colijn

Weighted recursive trees are built by adding successively vertices with predetermined weights to a tree: each new vertex is attached to a parent chosen randomly proportionally to its weight. Under some assumptions on the sequence of…

概率论 · 数学 2021-12-16 Michel Pain , Delphin Sénizergues

The preferential attachment network with fitness is a dynamic random graph model. New vertices are introduced consecutively and a new vertex is attached to an old vertex with probability proportional to the degree of the old one multiplied…

概率论 · 数学 2019-02-20 Steffen Dereich , Marcel Ortgiese

We consider the degree distributions of preferential attachment random graph models with choice similar to those considered in recent work by Malyshkin and Paquette and Krapivsky and Redner. In these models a new vertex chooses $r$ vertices…

概率论 · 数学 2020-08-12 John Haslegrave , Jonathan Jordan

We propose a generalized model for uniform recursive tree (URT) by introducing an imperfect growth process, which may generate disconnected components (clusters). The model undergoes an interesting phase transition from a singly connected…

统计力学 · 物理学 2008-04-18 Zhongzhi Zhang , Shuigeng Zhou , Shanghong Zhao , Jihong Guan , Tao Zou

We study a new class of preferential attachment trees with \emph{self-reinforcement}. At each time, each vertex is assigned a weight equal to the cumulative sum over past times of an affine function of its degree. A new vertex attaches…

In this paper, we study the joint behaviour of the degree, depth and label of and graph distance between high-degree vertices in the random recursive tree. We generalise the results obtained by Eslava and extend these to include the labels…

概率论 · 数学 2023-01-31 Bas Lodewijks

Preferential attachment models were shown to be very effective in predicting such important properties of real-world networks as the power-law degree distribution, small diameter, etc. Many different models are based on the idea of…

概率论 · 数学 2015-12-23 Liudmila Ostroumova Prokhorenkova , Egor Samosvat

We find assimpotics for the first $k$ highest degrees of the degree distribution in an evolving tree model combining the local choice and the preferential attachment. In the considered model, the random graph is constructd in the following…

概率论 · 数学 2016-08-31 Yury Malyshkin

We consider special cases of the two tree degree sequences problem. We show that if two tree degree sequences do not have common leaves then they always have edge-disjoint caterpillar realizations. By using a probabilistic method, we prove…

组合数学 · 数学 2017-04-25 Kristóf Bérczi , Zoltán Király , Changshuo Liu , István Miklós

In this thesis the properties of two kinds of non-uniform random recursive trees are studied. In the first model weights are assigned to each node, thus altering the attachment probabilities. We will call these trees weighted recursive…

概率论 · 数学 2017-10-05 Ella Hiesmayr