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A Switching Hidden Semi-Markov Model for Degradation Process and Its Application to Time-Varying Tool Wear Monitoring

IEEE Transactions on Industrial Informatics, 2021
Hidden semi-Markov model (HSMM) has been widely used in equipment condition monitoring. However, the HSMM is usually modeled in fixed working mode. It is incompetent to monitor the condition when the working mode is varying in the equipment's lifetime ...
Tongshun Liu, K. Zhu
semanticscholar   +1 more source

Continuity of Generalized Semi-Markov Processes

Mathematics of Operations Research, 1980
It is shown that sequences of generalized semi-Markov processes converge in the sense of weak convergence of random functions if associated sequences of defining elements (initial distributions, transition functions and clock time distributions) converge.
openaire   +2 more sources

Observer-Based Control for Discrete-Time Hidden Semi-Markov Jump Systems

IEEE Transactions on Automatic Control, 2023
In this note, the control problem for discrete-time hidden semi-Markov jump systems is investigated under the situation that the system modes are unavailable directly.
Hao Shen   +4 more
semanticscholar   +1 more source

A new multimode process monitoring method based on a hierarchical Dirichlet process—Hidden semi-Markov model with application to the hot steel strip mill process

, 2021
With the expansion of modern plants and the growth of process complexities, industrial processes generally have multimodes, which are reflected in the multiple distributions and complex correlations among the process data.
Jie Dong, Chi Zhang, Kai-xiang Peng
semanticscholar   +1 more source

Semi-Markov Processes

2001
Let Q(x,A,t), x ∈ E, A ∈ e,t ∈ IR+, be a semi-Markov kernel on (E,e) and let (J n ,S n )n∈N and (J n ,X n )n∈N be, respectively, the associated MRP and the (J-X)-process (see Section 2.2).
N. Limnios, G. Oprişan
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Regenerative generalized semi-markov processes

Communications in Statistics. Stochastic Models, 1987
The authors deal with a generalized semi-Markov process, which permits formal specification of some non-Markovian simulation models.
Haas, Peter J., Shedler, Gerald S.
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On Integral of a Semi-Markov Diffusion Process

Journal of Mathematical Sciences, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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SEMI-MARKOV DECISION PROCESSES

Probability in the Engineering and Informational Sciences, 2007
Considered are semi-Markov decision processes (SMDPs) with finite state and action spaces. We study two criteria: the expected average reward per unit time subject to a sample path constraint on the average cost per unit time and the expected time-average variability.
M. Baykal-Gürsoy, K. Gürsoy
openaire   +1 more source

Applied semi-markov processes

2006
info:eu-repo/semantics ...
JANSSEN J., MANCA, Raimondo
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Semi-Markov failure rates processes

Applied Mathematics and Computation, 2011
Let \(\{\lambda(u):u\geq 0\}\) be a semi-Markov process defined by a Markov renewal kernel. The author studies the survival function \(R\) defined as the expectation of \(\exp \left(-\int_0^t\lambda(u)du\right)\), for \(t \geq 0\). Note that, \(R(t)\) is considered to be the reliability of an object with a random failure rate.
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