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Microstructural evolution in structural materials is known to occur in response to mechanical loading and can often accommodate substantial plastic deformation through the coupled motion of grain boundaries (GBs). This can produce desirable…

介观与纳米尺度物理 · 物理学 2025-06-06 Daniel Bugas , Brandon Runnels

This work continues the development of the raytracing method of [1] for computing the scattered fields from metasurfaces characterized by locally periodic reflection and transmission coefficients. In this work, instead of describing the…

光学 · 物理学 2022-02-16 Scott Stewart , Yvo L. C. de Jong , Tom J. Smy , Shulabh Gupta

Diffusion models simulate the propagation of influence in networks. The design and evaluation of diffusion models has been subjective and empirical. When being applied to a network represented by a graph, the diffusion model generates a…

社会与信息网络 · 计算机科学 2020-12-15 Fangqi Li

The influence model is a discrete-time stochastic model that succinctly captures the interactions of a network of Markov chains. The model produces a reduced-order representation of the stochastic network, and can be used to describe and…

系统与控制 · 计算机科学 2018-11-07 Chenyuan He , Yan Wan , Frank L. Lewis

We propose a semiparametric model for autonomous nonlinear dynamical systems and devise an estimation procedure for model fitting. This model incorporates subject-specific effects and can be viewed as a nonlinear semiparametric mixed…

应用统计 · 统计学 2011-12-01 Debashis Paul , Jie Peng , Prabir Burman

We propose a general modeling framework for marked Poisson processes observed over time or space. The modeling approach exploits the connection of the nonhomogeneous Poisson process intensity with a density function. Nonparametric Dirichlet…

统计方法学 · 统计学 2011-11-02 Matthew A. Taddy , Athanasios Kottas

This article is a case study illustrating the use of a multivariate statistical method for screening potential chemical markers for early detection of post-harvest disease in storage fruit. We simultaneously measure a range of volatile…

应用统计 · 统计学 2021-07-26 J. S. Pelck , H. Holthusen , M. Edelenbos , A. Luca , R. Labouriau

Imaging through scattering and random media is an outstanding problem that to date has been tackled by either measuring the medium transmission matrix or exploiting linear correlations in the transmitted speckle patterns. However,…

光学 · 物理学 2022-04-07 Ilya Starshynov , Alex Turpin , Philip Binner , Daniele Faccio

Density-dependent diffusion is a widespread phenomenon in nature. We have examined the density-dependent diffusion behavior of some biological processes such as tumor growth and invasion [23]. Here, we extend our previous work by developing…

统计力学 · 物理学 2022-02-14 Ahmed M. Fouad , Marwa M. Fouad

Geostatistical modeling for continuous point-referenced data has been extensively applied to neuroimaging because it produces efficient and valid statistical inference. However, diffusion tensor imaging (DTI), a neuroimaging characterizing…

Motivated by multiple applications in social networks, nervous systems, and financial risk analysis, we consider the problem of learning the underlying (directed) influence graph or causal graph of a high-dimensional multivariate…

机器学习 · 计算机科学 2024-06-14 Smita Bagewadi , Avhishek Chatterjee

Multiplex graphs, characterised by their layered structure, exhibit informative interdependencies within layers that are crucial for understanding complex network dynamics. Quantifying the interaction and shared information among these…

统计理论 · 数学 2024-05-24 Anda Skeja , Sofia C. Olhede

This paper concerns the long term behaviour of a growth model describing a random sequential allocation of particles on a finite cycle graph. The model can be regarded as a reinforced urn model with graph-based interactions. It is motivated…

An important goal of environmental health research is to assess the health risks posed by mixtures of multiple environmental exposures. In these mixtures analyses, flexible models like Bayesian kernel machine regression and multiple index…

统计方法学 · 统计学 2025-12-29 Glen McGee , Joseph Antonelli

This study presents physical observations and insights into particle migration characteristics throughout the suffusion process. Using a purpose-built coaxial permeameter cell, suffusion experiments were conducted on idealised internally…

流体动力学 · 物理学 2022-12-27 V. S. Ramakrishna Annapareddy , Adnan Sufian , Thierry Bore , Alexander Scheuermann

In this paper, we propose a Spatial Robust Mixture Regression model to investigate the relationship between a response variable and a set of explanatory variables over the spatial domain, assuming that the relationships may exhibit complex…

统计方法学 · 统计学 2021-09-30 Wennan Chang , Pengtao Dang , Changlin Wan , Xiaoyu Lu , Yue Fang , Tong Zhao , Yong Zang , Bo Li , Chi Zhang , Sha Cao

We introduce a mixed-effects model to learn spatiotempo-ral patterns on a network by considering longitudinal measures distributed on a fixed graph. The data come from repeated observations of subjects at different time points which take…

Understanding the temporal dependence of precipitation is key to improving weather predictability and developing efficient stochastic rainfall models. We introduce an information-theoretic approach to quantify memory effects in discrete…

数据分析、统计与概率 · 物理学 2026-03-16 Juan De Gregorio , David Sánchez , Raúl Toral

Infectious disease models can be of great use for understanding the underlying mechanisms that influence the spread of diseases and predicting future disease progression. Modeling has been increasingly used to evaluate the potential impact…

应用统计 · 统计学 2019-08-20 Md Mahsin , Rob Deardon , Patrick Brown

We propose a constructive approach to building temporal point processes that incorporate dependence on their history. The dependence is modeled through the conditional density of the duration, i.e., the interval between successive event…

统计方法学 · 统计学 2025-10-31 Xiaotian Zheng , Athanasios Kottas , Bruno Sansó