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The partitioned approach for the numerical integration of power system differential algebraic equations faces inherent numerical stability challenges due to delays between the computation of state and algebraic variables. Such delays can…

数值分析 · 数学 2024-12-17 Ahmad Ali , Haya Monawwar , Hantao Cui

This paper develops the first class of algorithms that enable unbiased estimation of steady-state expectations for multidimensional reflected Brownian motion. In order to explain our ideas, we first consider the case of compound Poisson…

概率论 · 数学 2015-10-27 Jose Blanchet , Xinyun Chen

Spatio-temporal point process (STPP) is a stochastic collection of events accompanied with time and space. Due to computational complexities, existing solutions for STPPs compromise with conditional independence between time and space,…

机器学习 · 计算机科学 2023-06-27 Yuan Yuan , Jingtao Ding , Chenyang Shao , Depeng Jin , Yong Li

This paper focuses on the use of the theory of Reproducing Kernel Hilbert Spaces in the statistical analysis of replicated point processes. We show that spatial point processes can be observed as random variables in a Reproducing Kernel…

统计方法学 · 统计学 2023-01-06 Amelia Simó

We describe an Euler scheme to approximate solutions of L\'evy driven Stochastic Differential Equations (SDE) where the grid points are random and given by the arrival times of a Poisson process. This result extends a previous work of the…

概率论 · 数学 2013-09-10 Albert Ferreiro-Castilla , Andreas E Kyprianou , Robert Scheichl

Response-adaptive randomization has recently attracted a lot of attention in the literature. In this paper, we propose a new and simple family of response-adaptive randomization procedures that attain the Cramer--Rao lower bounds on the…

统计理论 · 数学 2009-08-25 Feifang Hu , Li-Xin Zhang , Xuming He

Gaussian process models are commonly used as emulators for computer experiments. However, developing a Gaussian process emulator can be computationally prohibitive when the number of experimental samples is even moderately large. Local…

统计方法学 · 统计学 2018-09-26 Chih-Li Sung , Robert B. Gramacy , Benjamin Haaland

In this work we review the application of the theory of Gaussian processes to the modeling of noise in pulsar-timing data analysis, and we derive various useful and optimized representations for the likelihood expressions that are needed in…

广义相对论与量子宇宙学 · 物理学 2014-11-19 Rutger van Haasteren , Michele Vallisneri

We propose the use of the probability integral transform (PIT) for model validation in point process models. The simple PIT diagnostics assess the calibration of the model and can detect inconsistencies in both the intensity and the…

统计方法学 · 统计学 2013-05-16 Thordis L. Thorarinsdottir

In this paper, a Bayesian method for piecewise regression is adapted to handle counting processes data distributed as Poisson. A numerical code in Mathematica is developed and tested analyzing simulated data. The resulting method is…

数据分析、统计与概率 · 物理学 2017-02-21 Diego Sevilla

An embedded selective recoupling method is proposed which is based on the idea of embedding the recently proposed deterministic selective recoupling scheme of Yamaguchi et al. [quant-ph/0411099] into a stochastic dynamical decoupling…

量子物理 · 物理学 2007-05-23 O. Kern , G. Alber

In numerical integration, cubature methods are effective, especially when the integrands can be well-approximated by known test functions, such as polynomials. However, the construction of cubature formulas has not generally been known, and…

数值分析 · 数学 2023-05-31 Satoshi Hayakawa

For the formal verification and design of control systems, abstractions with quantified accuracy are crucial. This is especially the case when considering accurate deviation bounds between a stochastic continuous-state model and its finite…

系统与控制 · 电气工程与系统科学 2022-01-19 B. C. van Huijgevoort , S. Haesaert

A compound Poisson process whose parameters are all unknown is observed at finitely many equispaced times. Nonparametric estimators of the jump and L\'evy distributions are proposed and functional central limit theorems using the uniform…

统计理论 · 数学 2017-02-06 Alberto J. Coca

Realtime shape estimation of continuum objects and manipulators is essential for developing accurate planning and control paradigms. The existing methods that create dense point clouds from camera images, and/or use distinguishable markers…

机器人学 · 计算机科学 2024-10-23 Jiaming Zhang , Zhaomeng Zhang , Yihao Liu , Yaqian Chen , Amir Kheradmand , Mehran Armand

An important task of uncertainty quantification is to identify {the probability of} undesired events, in particular, system failures, caused by various sources of uncertainties. In this work we consider the construction of Gaussian…

统计计算 · 统计学 2016-04-20 Hongqiao Wang , Guang Lin , Jinglai Li

Max-stable processes have proved to be useful for the statistical modelling of spatial extremes. Several representations of max-stable random fields have been proposed in the literature. One such representation is based on a limit of…

统计方法学 · 统计学 2012-04-26 Richard A. Davis , Claudia Klüppelberg , Christina Steinkohl

Although the study of weak convergence of superpositions of point processes to the Poisson process dates back to the work of Grigelionis in 1963, it was only recently that Schuhmacher [Stochastic Process. Appl. 115 (2005) 1819--1837]…

概率论 · 数学 2011-05-10 Louis H. Y. Chen , Aihua Xia

This paper proposes a spatiotemporal clustering algorithm and its implementation in the R package spotoroo. This work is motivated by the catastrophic bushfires in Australia throughout the summer of 2019-2020 and made possible by the…

机器学习 · 计算机科学 2024-11-04 Weihao Li , Emily Dodwell , Dianne Cook

Poisson restart assumes that a stochastic process is interrupted and starts again at random time moments. A number of studies have demonstrated that this strategy may minimize the expected completion time in some classes of random search…

统计力学 · 物理学 2024-05-15 Sergey Belan