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A probabilistic approach for estimating sample qualities for stochastic differential equations is introduced in this paper. The aim is to provide a quantitative upper bound of the distance between the invariant probability measure of a…

数值分析 · 数学 2019-12-24 Matthew Dobson , Jiayu Zhai , Yao Li

We derive a posteriori error estimators for an optimal control problem governed by a convection-reaction-diffusion equation; control constraints are also considered. We consider a family of low-order stabilized finite element methods to…

数值分析 · 数学 2017-04-24 Alejandro Allendes , Enrique Otarola , Richard Rankin

In dynamic discrete choice models, some parameters, such as the discount factor, are being fixed instead of being estimated. This paper proposes two sensitivity analysis procedures for dynamic discrete choice models with respect to the…

计量经济学 · 经济学 2024-08-30 Chun Pong Lau

This work proposes a hybrid modeling framework based on recurrent neural networks (RNNs) and the finite element (FE) method to approximate model discrepancies in time dependent, multi-fidelity problems, and use the trained hybrid models to…

计算工程、金融与科学 · 计算机科学 2024-02-20 Moritz von Tresckow , Herbert De Gersem , Dimitrios Loukrezis

Building on the successes of local kernel methods for approximating the solutions to partial differential equations (PDE) and the evaluation of definite integrals (quadrature/cubature), a local estimate of the error in such approximations…

数值分析 · 数学 2023-08-30 Jonah A. Reeger

A general adaptive refinement strategy for solving linear elliptic partial differential equation with random data is proposed and analysed herein. The adaptive strategy extends the a posteriori error estimation framework introduced by…

数值分析 · 数学 2022-08-23 Alex Bespalov , David Silvester , Feng Xu

In practical applications, the efficacy of a control algorithm relies critically on the accurate knowledge of the parameters and states of the underlying system. However, obtaining these quantities in practice is often challenging. Adaptive…

系统与控制 · 电气工程与系统科学 2025-11-18 Anchita Dey , Soutrik Bandyopadhyay , Shubhendu Bhasin

The minimum error entropy (MEE) criterion has been verified as a powerful approach for non-Gaussian signal processing and robust machine learning. However, the implementation of MEE on robust classification is rather a vacancy in the…

机器学习 · 计算机科学 2025-08-07 Yuanhao Li , Badong Chen , Natsue Yoshimura , Yasuharu Koike

The stochastic interpolant framework offers a powerful approach for constructing generative models based on ordinary differential equations (ODEs) or stochastic differential equations (SDEs) to transform arbitrary data distributions.…

机器学习 · 计算机科学 2025-07-29 Yuhao Liu , Yu Chen , Rui Hu , Longbo Huang

Quantile regression is a powerful tool for detecting exposure-outcome associations given covariates across different parts of the outcome's distribution, but has two major limitations when the aim is to infer the effect of an exposure.…

Reliable estimation of treatment effects from observational data is important in many disciplines such as medicine. However, estimation is challenging when unconfoundedness as a standard assumption in the causal inference literature is…

Continuous-time adaptive controllers for systems with a matched uncertainty often comprise an online parameter estimator and a corresponding parameterized controller to cancel the uncertainty. However, such methods are often impossible to…

系统与控制 · 电气工程与系统科学 2025-03-18 Aren Karapetyan , Efe C. Balta , Anastasios Tsiamis , Andrea Iannelli , John Lygeros

The estimation of the frequencies of multiple superimposed exponentials in noise is an important research problem due to its various applications from engineering to chemistry. In this paper, we propose an efficient and accurate algorithm…

数值分析 · 数学 2016-05-05 Shanglin Ye , Elias Aboutanios

Certifying the Region of Attraction (ROA) for high-dimensional nonlinear dynamical systems remains a severe computational bottleneck. Traditional deterministic verification methods, such as Sum-of-Squares (SOS) programming and…

系统与控制 · 电气工程与系统科学 2026-04-01 Pietro Zanotta , Panos Stinis , Ján Drgoňa

Traditional state estimation (SE) methods that are based on nonlinear minimization of the sum of localized measurement error functionals are known to suffer from non-convergence and large residual errors. In this paper we propose an…

系统与控制 · 电气工程与系统科学 2020-09-01 Shimiao Li , Amritanshu Pandey , Soummya Kar , Larry Pileggi

This paper studies the problem of fault detection and estimation (FDE) for linear time-invariant (LTI) systems with a particular focus on frequency content information of faults, possibly as multiple disjoint continuum ranges, and under…

系统与控制 · 电气工程与系统科学 2024-10-02 Jingwei Dong , Kaikai Pan , Sergio Pequito , Peyman Mohajerin Esfahani

The performance of near-field sensing (NISE) in a legacy wideband multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) communication system is analyzed. The maximum likelihood estimates (MLE) for the…

信息论 · 计算机科学 2025-06-13 Zhaolin Wang , Xidong Mu , Yuanwei Liu

The instantaneous relative entropy (IRE) and the corresponding instanta- neous Fisher information matrix (IFIM) for transient stochastic processes are pre- sented in this paper. These novel tools for sensitivity analysis of stochastic…

概率论 · 数学 2015-02-20 Georgios Arampatzis , Markos A. Katsoulakis , Yannis Pantazis

Causal inference methods are widely applied in various decision-making domains such as precision medicine, optimal policy and economics. Central to these applications is the treatment effect estimation of intervention strategies. Current…

人工智能 · 计算机科学 2021-05-28 Tri Dung Duong , Qian Li , Guandong Xu

The numerical approximation of convection-dominated problems continues to remain subject of strong interest. Families of stabilization techniques for finite element methods were developed in the past. Adaptive techniques based on a…

数值分析 · 数学 2018-03-20 Kristina Schwegler , Marius P. Bruchhäuser , Markus Bause