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Stability of linear systems with uncertain bounded time-varying delays is studied under assumption that the nominal delay values are not equal to zero. An input-output approach to stability of such systems is known to be based on the bound…

最优化与控制 · 数学 2007-05-23 Eugenii Shustin , Emilia Fridman

We address the problem of estimating unknown model parameters and state variables in stochastic reaction processes when only sparse and noisy measurements are available. Using an asymptotic system size expansion for the backward equation we…

数据分析、统计与概率 · 物理学 2010-07-02 Andreas Ruttor , Manfred Opper

Mathematical modeling based on time-delay differential equations is an important tool to study the role of delay in biological systems and to evaluate its impact on the asymptotic behavior of their dynamics. Delays are indeed found in many…

动力系统 · 数学 2022-03-25 Abdelmalik Moujahid , Fernando Vadillo

Modeling biological processes is a highly demanding task because not all processes are fully understood. Mathematical models allow us to test hypotheses about possible mechanisms of biological processes. The mathematical mechanisms…

数值分析 · 数学 2023-12-11 Cordula Reisch , Hannah Burmester

The problem considered in the paper is exponential stability of linear equations and global attractivity of nonlinear non-autonomous equations which include a non-delay term and one or more delayed terms. First, we demonstrate that…

动力系统 · 数学 2016-06-10 Leonid Berezansky , Elena Braverman

Motivated by the maneuvering target tracking with sensors such as radar and sonar, this paper considers the joint and recursive estimation of the dynamic state and the time-varying process noise covariance in nonlinear state space models.…

系统与控制 · 电气工程与系统科学 2023-05-09 Hua Lan , Jinjie Hu , Zengfu Wang , Qiang Cheng

The estimation of unknown values of parameters (or hidden variables, control variables) that characterise a physical system often relies on the comparison of measured data with synthetic data produced by some numerical simulator of the…

机器学习 · 计算机科学 2019-01-28 Xi Chen , Mike Hobson

A low-dimensional dynamical system is observed in an experiment as a high-dimensional signal; for example, a video of a chaotic pendulums system. Assuming that we know the dynamical model up to some unknown parameters, can we estimate the…

机器学习 · 统计学 2021-11-24 Ofir Lindenbaum , Amir Sagiv , Gal Mishne , Ronen Talmon

This paper studies a class of random nonlinear systems with time-varying delay, in which the $r$-order moment ($r\geq1$) of the random disturbance is finite. Firstly, some general conditions are proposed to guarantee the existence and…

最优化与控制 · 数学 2018-06-22 Yao Liqiang , Zhang Weihai

The goal of this work is to compute a boundary control of reaction-diffusion partial differential equation. The boundary control is subject to a constant delay, whereas the equation may be unstable without any control. For this system…

偏微分方程分析 · 数学 2017-09-11 Christophe Prieur , Emmanuel Trélat

The topic of statistical inference for dynamical systems has been studied extensively across several fields. In this survey we focus on the problem of parameter estimation for non-linear dynamical systems. Our objective is to place results…

统计理论 · 数学 2012-06-19 Kevin McGoff , Sayan Mukherjee , Natesh S. Pillai

The paper deals with the theoretical analysis of a logistic system composed of at least two elements with distributed parameters. It has been shown that such a system may generate specific oscillations in spite of the fact that the…

混沌动力学 · 物理学 2026-02-10 Marek Berezowski , Artur Grabski

Time-varying linear state-space models are powerful tools for obtaining mathematically interpretable representations of neural signals. For example, switching and decomposed models describe complex systems using latent variables that evolve…

This article investigates the stability of pantograph delay differential equations, in which the delayed argument is proportional to the present time. We derive analytic criteria that partition the parameter plane into unstable,…

动力系统 · 数学 2026-05-22 Sachin Bhalekar

We propose here a stochastic binary element whose transition rate depends on its state at a fixed interval in the past. With this delayed stochastic transition this is one of the simplest dynamical models under the influence of ``noise''…

统计力学 · 物理学 2009-10-31 Toru Ohira , Yuzuru Sato

The literature is rich with studies, analyses, and examples on parameter estimation for describing the evolution of chaotic dynamical systems based on measurements, even when only partial information is available through observations.…

混沌动力学 · 物理学 2025-08-07 Michele Baia , Tommaso Matteuzzi , Franco Bagnoli

We study the problem of estimating the time delay between two signals representing delayed, irregularly sampled and noisy versions of the same underlying pattern. We propose and demonstrate an evolutionary algorithm for the (hyper)parameter…

宇宙学与河外天体物理 · 物理学 2009-08-27 Juan C. Cuevas-Tello , Peter Tino , Somak Raychaudhury , Xin Yao , Markus Harva

We propose here a method to estimate a delay from a time series taking advantage of analysis of random walks with delay. This method is applicable to a time series coming out of a system which is or can be approximated as a linear feedback…

统计力学 · 物理学 2009-10-30 Toru Ohira , Ryusuke Sawatari

Till today we dreamt of imperceptible delay in a network. The computer science research grows today faster than ever offering more and more services (computational representational, graphical, intelligent implication etc) to its user. But…

网络与互联网体系结构 · 计算机科学 2011-10-18 Soumen Kanrar , M Siraj

This paper investigates the estimation of different parameters, e.g., propagation distance and flow velocity, by utilizing two fully-absorbing receivers (RXs) in a one-dimensional (1D) environment. The time-varying number of absorbed…

新兴技术 · 计算机科学 2021-02-17 Xinyu Huang , Yuting Fang , Adam Noel , Nan Yang