Results 251 to 260 of about 1,041,754 (275)

An Age-Dependent Prognostic Model for Nonlinear Degrading Devices Based on Diffusion Process

IEEE Sensors Journal, 2023
Degradation modeling-based remaining useful life (RUL) predicting has become a significant basis of prognotics and system health management (PHM) and has drawn much favor of both scholars and engineers in the field of reliability.
Zhengxin Zhang, Tianmei Li, Jian-xun Zhang, D. Du, Xiaosheng Si   +4 more
semanticscholar   +1 more source

Parameters of stochastic diffusion processes estimated from observations of first-hitting times: Application to the leaky integrate-and-fire neuronal model

Physical Review E, 2007
A theoretical model has to stand the test against the real world to be of any practical use. The first step is to identify parameters in the model estimated from experimental data. In many applications where renewal point data are available, models of first-hitting times of underlying diffusion processes arise.
Ditlevsen, Susanne, Lansky, Petr
openaire   +4 more sources

Low-Mean Hitting Time for Random Walks on Heterogeneous Networks

IEEE Transactions on Information Theory, 2019
Mean hitting time for random walks on a network, defined as the average of hitting times over all possible pairs of nodes, has found a large variety of applications in many areas.
Y. Sheng, Zhongzhi Zhang
semanticscholar   +1 more source

Turbulent transport of suspended particles and dispersing benthic organisms: the hitting-time distribution for the local exchange model.

Journal of Theoretical Biology, 2000
Fine particles suspended in turbulent water exhibit highly irregular trajectories as they are buffeted by fluid eddies. The Local Exchange Model provides a stochastic diffusion approximation to the randomlike motion of such particles (e.g.
J. McNair
semanticscholar   +1 more source

Computing Hitting Time Densities for CIR and OU Diffusions: Applications to Mean-Reverting Models

, 2004
This paper provides explicit analytical characterizations for first hitting time densities for Cox–Ingersoll–Ross (CIR) and Ornstein–Uhlenbeck (OU) diffusions in terms of relevant Sturm–Liouville eigenfunction expansions. Starting with Vasicek (1977) and
V. Linetsky
semanticscholar   +1 more source

A dependent and censored first hitting-time model with compound Poisson processes

We consider a bivariate first hitting-time model in which durations are the crossing times of dependent compound Poisson processes with fixed thresholds. The identifiability of the model is discussed, and likelihood estimators of the model parameters are proposed.
Escobar-Bach, Mikael, Popier, Alexandre, Sahin, Malo   +2 more
openaire   +1 more source

Turbulent transport of suspended particles and dispersing benthic organisms: the hitting-distance problem for the local exchange model.

Journal of Theoretical Biology, 2001
The local exchange model developed by McNair et al. (1997) provides a stochastic diffusion approximation to the random-like motion of fine particles suspended in turbulent water.
J. McNair, J. Newbold
semanticscholar   +1 more source

Semiparametric predictive inference for failure data using first-hitting-time threshold regression

Lifetime Data Analysis, 2023
Mei-Ling Ting Lee, G. A. Whitmore
semanticscholar   +1 more source

An Adaptive Lévy Process Model for Remaining Useful Life Prediction

IEEE Transactions on Instrumentation and Measurement
Predicting remaining useful life (RUL) is a crucial part of prognostics and health management (PHM), which has attracted widespread attention in academia and industry over the past few decades. Effective estimation of RUL is predicated on the development
Bincheng Wen, Mingqing Xiao, Xilang Tang, Jianfeng Li, Haizhen Zhu   +4 more
semanticscholar   +1 more source

Hitting point tracking control of tank projectile based on Chebyshev exterior ballistic polynomial: an adaptive robust feedback approach

Acta Mechanica Sinica, 2022
Yu-ze Ma, Guolai Yang, Qinqin Sun, Dianrong Wang, Xiuye Wang, Liqun Wang   +5 more
semanticscholar   +1 more source