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As an alternative to the well-known methods of "chaining" and "bracketing" that have been developed in the study of random fields, a new method, which is based on a stochastic maximal inequality derived by using the Taylor expansion, is…

概率论 · 数学 2020-08-03 Yoichi Nishiyama

Given a set of points $P$ and axis-aligned rectangles $\mathcal{R}$ in the plane, a point $p \in P$ is called \emph{exposed} if it lies outside all rectangles in $\mathcal{R}$. In the \emph{max-exposure problem}, given an integer parameter…

计算几何 · 计算机科学 2021-02-09 Neeraj Kumar , Stavros Sintos , Subhash Suri

We develop Stein's method for $\alpha$-stable approximation with $\alpha\in(0,1]$, continuing the recent line of research by Xu \cite{lihu} and Chen, Nourdin and Xu \cite{C-N-X} in the case $\alpha\in(1,2).$ The main results include an…

概率论 · 数学 2019-04-16 Peng Chen , Ivan Nourdin , Lihu Xu , Xiaochuan Yang , Rui Zhang

We consider nonlinear model predictive control (MPC) schemes without stabilizing terminal conditions, where the model used in the optimization step is generated based on input-output data only. We establish exponential stability for…

最优化与控制 · 数学 2026-05-27 Lea Bold , Irene Schimperna , Karl Worthmann , Johannes Köhler

In this paper, the maximum spacing method is considered for multivariate observations. Nearest neighbour balls are used as a multidimensional analogue to univariate spacings. A class of information-type measures is used to generalize the…

统计理论 · 数学 2019-04-19 Kristi Kuljus , Bo Ranneby

A distributed algorithm is self-stabilizing if after faults and attacks hit the system and place it in some arbitrary global state, the system recovers from this catastrophic situation without external intervention in finite time. In this…

数据结构与算法 · 计算机科学 2009-04-20 Toshimitsu Masuzawa , Sébastien Tixeuil

Identifying important features linked to a response variable is a fundamental task in various scientific domains. This article explores statistical inference for simulated Markov random fields in high-dimensional settings. We introduce a…

机器学习 · 统计学 2024-01-23 Haoyu Wei , Xiaoyu Lei , Yixin Han , Huiming Zhang

In this work, we propose a novel formulation for the solution of partial differential equations using finite element methods on unfitted meshes. The proposed formulation relies on the discrete extension operator proposed in the aggregated…

数值分析 · 数学 2022-08-15 Santiago Badia , Eric Neiva , Francesc Verdugo

Motivated by the papers of Mladenovc and Piterbarg (2006), Krajka (2011) and Pereira and Tan (2017), we study the limit properties for the maxima from nonstationary random fields subject to missing observations and obtain the weakly…

概率论 · 数学 2023-06-27 Shengchao Zheng , Zhongquan Tan

We consider the problem of optimal linear estimation of the functional $$A_N \vec{\xi} =\sum_{j = 0}^{N} (\vec{a}(j))^{\top} \vec{\xi}(j)$$ that depends on the unknown values $\vec{\xi}(j),j=0,1,\dots,N,$ of a vector-valued harmonizable…

统计理论 · 数学 2025-02-25 Mikhail Moklyachuk

The main goal of this paper is to construct a wavelet-type random series representation for a random field $X$, defined by a multistable stochastic integral, which generates a multifractional multistable Riemann-Liouville (mmRL) process…

概率论 · 数学 2020-04-14 Antoine Ayache , Julien Hamonier

We develop classification results for max--stable processes, based on their spectral representations. The structure of max--linear isometries and minimal spectral representations play important roles. We propose a general classification…

概率论 · 数学 2009-09-18 Yizao Wang , Stilian A. Stoev

Geometrical random multiplicative cascade processes are often used to model positive-valued multifractal fields such as for example the energy dissipation field of fully developed turbulence. A dynamical generalisation of these models is…

统计力学 · 物理学 2007-05-23 Juergen Schmiegel , Hans C. Eggers , Martin Greiner

Maximum likelihood estimations for the parameters of extreme value distributions are discussed in this paper using fixed point iteration. The commonly used numerical approach for addressing this problem is the Newton-Raphson approach which…

统计计算 · 统计学 2009-02-03 Tewfik Kernane , Zohrh A. Raizah

The replicated field theory of the random field Ising model involves the couplings of replicas of different indices. The resulting correlation functions involve a superposition of different types of long distance behaviours. However the…

凝聚态物理 · 物理学 2009-10-31 E. Brézin , De Dominicis

In this paper, we use the concept of excursion sets for the extrapolation of stationary random fields. Doing so, we define excursion sets for the field and its linear predictor, and then minimize the expected volume of the symmetric…

概率论 · 数学 2021-10-15 Abhinav Das , Vitalii Makogin , Evgeny Spodarev

Let X be a countably infinite set of real numbers and let Y_x, x \in X, be an independent family of stationary random subsets of the real numbers, e.g. homogeneous Poisson point processes. We give criteria for the a.s. existence of various…

概率论 · 数学 2011-05-17 Martin P. W. Zerner

We consider expected performances based on max-stable random fields and we are interested in their derivatives with respect to the spatial dependence parameters of those fields. Max-stable fields, such as the Brown--Resnick and Smith…

风险管理 · 定量金融 2020-11-04 Erwan Koch , Christian Y. Robert

Let a continuous random process $X$ defined on $[0,1]$ be $(m+\beta)$-smooth, $0\le m, 0<\beta\le 1$, in quadratic mean for all $t>0$ and have an isolated singularity point at $t=0$. In addition, let $X$ be locally like a $m$-fold…

概率论 · 数学 2010-05-20 Konrad Abramowicz , Oleg Seleznjev

Robust parameter estimation in computer vision is frequently accomplished by solving the maximum consensus (MaxCon) problem. Widely used randomized methods for MaxCon, however, can only produce {random} approximate solutions, while global…

计算机视觉与模式识别 · 计算机科学 2018-03-26 Pulak Purkait , Christopher Zach , Anders Eriksson