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We review error estimation methods for co-simulation, in particular methods that are applicable when the subsystems provide minimal interfaces. By this, we mean that subsystems do not support rollback of time steps, do not output…

计算工程、金融与科学 · 计算机科学 2025-10-28 Lars T. Kyllingstad , Severin Sadjina , Stian Skjong

Focusing on stochastic programming (SP) with covariate information, this paper proposes an empirical risk minimization (ERM) method embedded within a nonconvex piecewise affine decision rule (PADR), which aims to learn the direct mapping…

最优化与控制 · 数学 2025-09-29 Yiyang Zhang , Junyi Liu , Xiaobo Zhao

Quantum key distribution (QKD) offers a practical solution for secure communication between two distinct parties via a quantum channel and an authentic public channel. In this work, we consider different approaches to the quantum bit error…

Microscopic processes on surfaces such as adsorption, desorption, diffusion and reaction of interacting particles can be simulated using kinetic Monte Carlo (kMC) algorithms. Even though kMC methods are accurate, they are computationally…

数学物理 · 物理学 2013-12-24 Yannis Pantazis , Markos Katsoulakis

Poyiadjis et al. (2011) show how particle methods can be used to estimate both the score and the observed information matrix for state space models. These methods either suffer from a computational cost that is quadratic in the number of…

统计计算 · 统计学 2015-09-07 Christopher Nemeth , Paul Fearnhead , Lyudmila Mihaylova

In this article we consider Bayesian parameter inference associated to partially-observed stochastic processes that start from a set B0 and are stopped or killed at the first hitting time of a known set A. Such processes occur naturally…

统计计算 · 统计学 2012-01-19 Ajay Jasra , Nikolas Kantas

Monte Carlo (MC) methods are widely used for Bayesian inference and optimization in statistics, signal processing and machine learning. A well-known class of MC methods are Markov Chain Monte Carlo (MCMC) algorithms. In order to foster…

统计计算 · 统计学 2016-09-27 L. Martino , V. Elvira , D. Luengo , J. Corander , F. Louzada

This work aims efficiently estimating the posterior distribution of kinetic parameters for dynamic positron emission tomography (PET) imaging given a measurement of time of activity curve. Considering the inherent information loss from…

医学物理 · 物理学 2023-10-25 Xiaofeng Liu , Thibault Marin , Tiss Amal , Jonghye Woo , Georges El Fakhri , Jinsong Ouyang

In the Monte Carlo (MC) method statistical noise is usually present. Statistical noise may become dominant in the calculation of a distribution, usually by iteration, but is less Important in calculating integrals. The subject of the…

计算物理 · 物理学 2013-11-08 Mihály Makai , Zoltán Szatmáry

In this paper we investigate the approximation properties of the coarse-graining procedure applied to kinetic Monte Carlo simulations of lattice stochastic dynamics. We provide both analytical and numerical evidence that the hierarchy of…

数值分析 · 数学 2007-05-23 Markos A Katsoulakis , Petr Plechac , Alexandros Sopasakis

In continuous-variable quantum key distribution (CV-QKD), the performance of the information reconciliation (IR) step is critical for the achievable secret key rate (SKR) and transmission distance. We show how to improve on the recently…

Many scientific data sets contain temporal dimensions. These are the data storing information at the same spatial location but different time stamps. Some of the biggest temporal datasets are produced by parallel computing applications such…

分布式、并行与集群计算 · 计算机科学 2017-03-13 Zheng Yuan , William Hendrix , Seung Woo Son , Christoph Federrath , Ankit Agrawal , Wei-keng Liao , Alok Choudhary

Accurate estimates of long-term risk probabilities and their gradients are critical for many stochastic safe control methods. However, computing such risk probabilities in real-time and in unseen or changing environments is challenging.…

系统与控制 · 电气工程与系统科学 2024-08-20 Zhuoyuan Wang , Yorie Nakahira

Recently there have been exciting developments in Monte Carlo methods, with the development of new MCMC and sequential Monte Carlo (SMC) algorithms which are based on continuous-time, rather than discrete-time, Markov processes. This has…

统计计算 · 统计学 2020-09-29 Paul Fearnhead , Joris Bierkens , Murray Pollock , Gareth O Roberts

Distributed Computation has been a recent trend in engineering research. Parallel Computation is widely used in different areas of Data Mining, Image Processing, Simulating Models, Aerodynamics and so forth. One of the major usage of…

分布式、并行与集群计算 · 计算机科学 2017-03-28 C Rashmi

It is a challenge to obtain an accurate model of the state-to-state dynamics of a complex biological system from molecular dynamics (MD) simulations. In recent years, Markov State Models have gained immense popularity for computing…

化学物理 · 物理学 2020-01-29 Animesh Agarwal , Nicolas W. Hengartner , S. Gnanakaran , Arthur F. Voter

This paper proposes a parallelizable algorithm for linear-quadratic model predictive control (MPC) problems with state and input constraints. The algorithm itself is based on a parallel MPC scheme that has originally been designed for…

最优化与控制 · 数学 2022-07-04 Jiahe Shi , Yuning Jiang , Juraj Oravec , Boris Houska

We propose a hierarchical splitting approach to differential equations that provides a design principle for constructing splitting methods for $N$-split systems by iteratively applying splitting methods for two-split systems. We analyze the…

数值分析 · 数学 2026-01-21 Kevin Schäfers , Michael Günther

Distributed computing is a standard way to scale up machine learning and data science algorithms to process large amounts of data. In such settings, avoiding communication amongst machines is paramount for achieving high performance. Rather…

机器学习 · 统计学 2021-05-04 Vasileios Charisopoulos , Austin R. Benson , Anil Damle

Graph-cuts are widely used in computer vision. In order to speed up the optimization process and improve the scalability for large graphs, Strandmark and Kahl introduced a splitting method to split a graph into multiple subgraphs for…

数据结构与算法 · 计算机科学 2016-11-03 Miao Yu , Shuhan Shen , Zhanyi Hu