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Random geometric graphs (RGG) can be formalized as hidden-variables models where the hidden variables are the coordinates of the nodes. Here we develop a general approach to extract the typical configurations of a generic hidden-variables…

无序系统与神经网络 · 物理学 2015-04-28 Massimo Ostilli , Ginestra Bianconi

There are important conjectures about logarithmic conformal field theories (LCFT), which are constructed as kernel of screening operators acting on the vertex algebra of the rescaled root lattice of a finite-dimensional semisimple complex…

表示论 · 数学 2018-08-01 I. Flandoli , S. Lentner

Random forest (RF) stands out as a highly favored machine learning approach for classification problems. The effectiveness of RF hinges on two key factors: the accuracy of individual trees and the diversity among them. In this study, we…

机器学习 · 计算机科学 2024-10-28 Ye-eun Kim , Seoung Yun Kim , Hyunjoong Kim

We use Dirichlet form methods to construct and analyze a reversible Markov process, the stationary distribution of which is the Brownian continuum random tree. This process is inspired by the subtree prune and regraft (SPR) Markov chains…

概率论 · 数学 2007-05-23 Steven N. Evans , Anita Winter

Two-dimensional conformal field theory (CFT) has several sources: the search for simple examples of quantum field theory, the description of surface critical phenomena, the study of (super)string vacua. In the present overview of the…

数学物理 · 物理学 2014-11-18 I. T. Todorov

In earlier work, we have developed a nonequilibrium statistical field theory description of cosmic structure formation, dubbed Kinetic Field Theory (KFT), which is based on the Hamiltonian phase-space dynamics of classical particles and…

宇宙学与河外天体物理 · 物理学 2019-04-03 Robert Lilow , Felix Fabis , Elena Kozlikin , Celia Viermann , Matthias Bartelmann

This paper investigates asymptotic properties of multifractal products of random fields. The obtained limit theorems provide sufficient conditions for the convergence of cumulative fields in the spaces $L_q.$ New results on the rate of…

概率论 · 数学 2022-02-08 Illia Donhauzer , Andriy Olenko

We derive a refined conjecture for the variance of Gaussian primes across sectors, with a power saving error term, by applying the L-functions Ratios Conjecture. We observe a bifurcation point in the main term, consistent with the Random…

This paper presents a new probabilistic generative model for image segmentation, i.e. the task of partitioning an image into homogeneous regions. Our model is grounded on a mid-level image representation, called a region tree, in which…

机器学习 · 统计学 2015-06-15 Shell X. Hu , Christopher K. I. Williams , Sinisa Todorovic

Reaction diffusion equations have been used to model a wide range of biological phenomenon related to population spread and proliferation from ecology to cancer. It is commonly assumed that individuals in a population have homogeneous…

动力系统 · 数学 2023-04-14 Kyle Nguyen , Erica M. Rutter , Kevin Flores

We propose a mathematical framework for natural selection in finite populations. Traditionally, many of the selection-based processes used to describe cultural and genetic evolution (such as imitation and birth-death models) have been…

种群与进化 · 定量生物学 2015-11-18 Alex McAvoy

A Double Field Theory (DFT) description of gauge symmetry enhancing-breaking in the heterotic string is presented. The construction, based on previous results for the bosonic string, relies on the extension of the tangent frame of DFT. The…

高能物理 - 理论 · 物理学 2017-10-25 Gerardo Aldazabal , Eduardo Andres , Martin Mayo , Victor Penas

Relativistic quantum field theory (QFT) is commonly formulated in terms of operators, asymptotic states, and covariant amplitudes, a perspective that tends to obscure the real-time origin of field dynamics and correlations. Here we…

高能物理 - 理论 · 物理学 2026-02-05 Yong Zhang

Having a precise knowledge of the dispersal ability of a population in a heterogeneous environment is of critical importance in agroecology and conservation biology as it can provide management tools to limit the effects of pests or to…

种群与进化 · 定量生物学 2015-03-19 L. Roques , E. Walker , P. Franck , S. Soubeyrand , E. K. Klein

The Horton laws originated in hydrology with a 1945 paper by Robert E. Horton, and for a long time remained a purely empirical finding. Ubiquitous in hierarchical branching systems, the Horton laws have been rediscovered in many disciplines…

概率论 · 数学 2019-05-21 Yevgeniy Kovchegov , Ilya Zaliapin

We review a recently proposed SuperGeometric (SG) approach to Quantum Field Theories (QFTs) that allow for scalar-fermion field transformations in a manifestly reparameterisation covariant manner. By adopting natural choices for the…

高能物理 - 理论 · 物理学 2024-04-23 Viola Gattus , Apostolos Pilaftsis

A general theory of stochastic extensive forms is developed to bridge two concepts of information flow: decision trees and refined partitions on the one side, filtrations from probability theory on the other. Instead of the traditional…

理论经济学 · 经济学 2024-11-27 E. Emanuel Rapsch

The method of effective field theories (EFTs) is developed for the scattering of two particles at wavelengths which are large compared to the range of their interaction. It is shown that the renormalized EFT is equivalent to the effective…

核理论 · 物理学 2008-11-26 U. van Kolck

These lectures give an introduction to the methods of conformal field theory as applied to deriving certain results in two-dimensional critical percolation: namely the probability that there exists at least one cluster connecting two…

数学物理 · 物理学 2007-05-23 John Cardy

A generalization of the Renormalization Group, which describes order-parameter fluctuations in finite systems, is developed in the specific context of percolation. This ``Stochastic Renormalization Group'' (SRG) expresses statistical…

统计力学 · 物理学 2009-11-07 Martin Z. Bazant