中文
相关论文

相关论文: Percolation under Noise: Detecting Explosive Perco…

200 篇论文

We prove that the Poisson Boolean model, also known as the Gilbert disc model, is noise sensitive at criticality. This is the first such result for a Continuum Percolation model, and the first for which the critical probability p_c \ne 1/2.…

概率论 · 数学 2015-07-07 Daniel Ahlberg , Erik Broman , Simon Griffiths , Robert Morris

Understanding how network structure constrains and enables information processing is a central problem in the statistical mechanics of interacting systems. Here we study random networks across the structural percolation transition and…

物理与社会 · 物理学 2026-01-14 Galen J. Wilkerson

High-temperature superconductor $Bi_{2}Sr_{2}CaCu_{2}O_{8}+x$ has been investigated by the high-resolution electron microscope (HREM) and the photodensitometric technique in order to resolve the sub-atomic shifts in the modulated structure.…

混沌动力学 · 物理学 2007-05-23 D. Kunstelj , M. Martinis , A. Knežević

The evolution of the usual Erd\H{o}s-R\'{e}nyi random graph model on n vertices can be described as follows: At time 0 start with the empty graph, with n vertices and no edges. Now at each time k, choose 2 vertices uniformly at random and…

概率论 · 数学 2011-06-09 Shankar Bhamidi , Amarjit Budhiraja , Xuan Wang

The problem of learning tree-structured Gaussian graphical models from independent and identically distributed (i.i.d.) samples is considered. The influence of the tree structure and the parameters of the Gaussian distribution on the…

机器学习 · 统计学 2010-05-06 Vincent Y. F. Tan , Animashree Anandkumar , Alan S. Willsky

Can there be a `Litmus test' for determining the nature of transition in models of percolation? In this paper we argue that the answer is in the affirmative. All one needs to do is to measure the `growth exponent' $\chi$ of the largest…

统计力学 · 物理学 2015-05-28 S. S. Manna

Pathological brain lesions exhibit diverse appearance in brain images, in terms of intensity, texture, shape, size, and location. Comprehensive sets of data and annotations are difficult to acquire. Therefore, unsupervised anomaly detection…

We study structure learning for linear Gaussian SEMs in the presence of latent confounding. Existing continuous methods excel when errors are independent, while deconfounding-first pipelines rely on pervasive factor structure or…

机器学习 · 计算机科学 2025-10-03 Samhita Pal , James O'quinn , Kaveh Aryan , Heather Pua , James P. Long , Amir Asiaee

Microscopic current fluctuations are inseparable from conductance. We give an integral account of both quantized conductance and nonequilibrium thermal noise in one-dimensional ballistic wires. Our high-current noise theory opens a very…

介观与纳米尺度物理 · 物理学 2007-05-23 Frederick Green , Mukunda P Das

Generative modeling is typically framed as learning mapping rules, but from an observer's perspective without access to these rules, the task becomes disentangling the geometric support from the probability distribution. We propose that…

机器学习 · 统计学 2025-12-04 Rui Tong

With the space-borne missions CoRoT and Kepler, a large amount of asteroseismic data is now available. So-called global oscillation parameters are inferred to characterize the large sets of stars, to perform ensemble asteroseismology, and…

太阳与恒星天体物理 · 物理学 2015-06-12 B. Mosser , E. Michel , K. Belkacem , M. J. Goupil , A. Baglin , C. Barban , J. Provost , R. Samadi , M. Auvergne , C. Catala

The notion of neural collapse refers to several emergent phenomena that have been empirically observed across various canonical classification problems. During the terminal phase of training a deep neural network, the feature embedding of…

机器学习 · 计算机科学 2023-04-05 Duc Anh Nguyen , Ron Levie , Julian Lienen , Gitta Kutyniok , Eyke Hüllermeier

A noise-based non-parametric technique for detecting nebulous objects, for example, irregular or clumpy galaxies, and their structure in noise is introduced. "Noise-based" and "non-parametric" imply that this technique imposes negligible…

天体物理仪器与方法 · 物理学 2015-09-08 Mohammad Akhlaghi , Takashi Ichikawa

We study percolation problems of overlapping objects where the underlying geometry is such that in D-dimensions, a subset of the directions has a lattice structure, while the remaining directions have a continuum structure. The resulting…

统计力学 · 物理学 2025-01-13 Jasna C. K , V. Krishnadev , V. Sasidevan

We study one-shot detection under isotropic multivariate Cauchy noise using finite constellations, with emphasis on the geometric mechanisms governing symbol-level reliability. Under isotropic Cauchy noise, the maximum-likelihood rule…

信息论 · 计算机科学 2026-04-28 Yen-Chi Lee

We investigate the correspondence between classical noise and quantum environments. Although it has been known that the classical noise can be mapped to the quantum environments only for pure dephasing and infinite-temperature dissipation…

量子物理 · 物理学 2024-12-31 Jiarui Zeng , Guo-Hao Xu , Weijie Huang , Yao Yao

Exponential random graph models (ERGMs) are flexible probability models allowing edge dependency. However, it is known that, to a first-order approximation, many ERGMs behave like Erd\"os-R\'enyi random graphs, where edges are independent.…

概率论 · 数学 2024-01-04 Wen-Yi Ding , Xiao Fang

The recently developed information-theoretic approach to crystallographic symmetry classifications and quantifications in two dimensions (2D) from digital transmission electron and scanning probe microscope images is adapted for the…

材料科学 · 物理学 2022-08-10 Peter Moeck , Lukas von Koch

The purpose of this paper is to prove ergodicity and provide asymptotic formulae for probabilities of threshold crossing related to smooth approximations of three fundamental nonlinear mechanical models: (a) an elasto-plastic oscillator,…

概率论 · 数学 2018-03-02 Mathieu Lauriere , Laurent Mertz

We study noise sensitivity of properties of the largest components $({\cal C}_j)_{j\geq 1}$ of the random graph ${\cal G}(n,p)$ in its critical window $p=(1+\lambda n^{-1/3})/n$. For instance, is the property "$|{\cal C}_1|$ exceeds its…

概率论 · 数学 2020-09-04 Eyal Lubetzky , Yuval Peled
‹ 上一页 1 8 9 10 下一页 ›