Results 11 to 20 of about 1,041,754 (275)

Remaining Useful Life (RUL) Prediction Based on the Bivariant Two-Phase Nonlinear Wiener Degradation Process [PDF]

Entropy
Recent advancements in science and technology have resulted in products with enhanced reliability and extended lifespans across the aerospace and related sectors.
Lijun Sun, Yuying Liang, Zaizai Yan
doaj   +2 more sources

Approximating First Hitting Point Distribution in Milestoning for Rare Event Kinetics. [PDF]

Journal of Chemical Theory and Computation, 2023
Milestoning is an efficient method for rare event kinetics calculation using short trajectory parallelization. Mean first passage time (MFPT) is the key kinetic output of Milestoning, whose accuracy crucially depends on the initial distribution of the ...
Ru Wang, Hao Wang, Wenjian Liu, R. Elber
semanticscholar   +1 more source

Causal Inference in Threshold Regression and the Neural Network Extension (TRNN)

Stats, 2023
The first-hitting-time based model conceptualizes a random process for subjects’ latent health status. The time-to-event outcome is modeled as the first hitting time of the random process to a pre-specified threshold.
Yiming Chen, Paul J. Smith, Mei-Ling Ting Lee   +2 more
doaj   +1 more source

Hitting time of rapid intensification onset in hurricane-like vortices [PDF]

The Physics of Fluids, 2021
Predicting tropical cyclone (TC) rapid intensification (RI) is an important yet challenging task in current operational forecast due to our incomplete understanding of TC nonlinear processes. This study examines the variability of RI onset, including the
W. Fan, C. Kieu, D. Sakellariou, Mahashweta Patra   +3 more
semanticscholar   +1 more source

An Imperfect Repair Model with Delayed Repair under Replacement and Repair Thresholds

Mathematics, 2022
Based on the extended geometric process, a repair replacement model of a degradation system is studied, in which the delayed repair time depends on the working time after the last repair. Replacement and repair thresholds describe when the system will be
Mingjuan Sun, Qinglai Dong, Zihan Gao
doaj   +1 more source

Hitting statistics from quantum jumps [PDF]

Quantum, 2017
We define the hitting time for a model of continuous-time open quantum walks in terms of quantum jumps. Our starting point is a master equation in Lindblad form, which can be taken as the quantum analogue of the rate equation for a classical continuous ...
A. Chia, T. Paterek, L. C. Kwek
doaj   +1 more source

Regression Models for Lifetime Data: An Overview

Stats, 2022
Two methods dominate the regression analysis of time-to-event data: the accelerated failure time model and the proportional hazards model. Broadly speaking, these predominate in reliability modelling and biomedical applications, respectively.
Chrys Caroni
doaj   +1 more source

The Analysis of Technical Characteristics of Badminton for Sports With Neurorobotics Under Machine Learning

IEEE Access, 2023
With the increase in public attention to sports and health, more people are keen to use badminton for fitness, but it is difficult to find professionals for guidance.
Fan Wu, Huan Chen
doaj   +1 more source

Cubature Kalman Filters Model Predictive Static Programming Guidance Method with Impact Time and Angle Constraints Considering Modeling Errors

Mathematics, 2023
This paper proposes a CKF-MPSP guidance method for hitting stationary targets with impact time and angle constraints for missiles in the presence of modeling errors.
Zihan Xie, Jialun Pu, Changzhu Wei, Yingzi Guan   +3 more
doaj   +1 more source

Multivariate Threshold Regression Models with Cure Rates: Identification and Estimation in the Presence of the Esscher Property

Stats, 2022
The first hitting time of a boundary or threshold by the sample path of a stochastic process is the central concept of threshold regression models for survival data analysis.
Mei-Ling Ting Lee, George A. Whitmore
doaj   +1 more source