Results 71 to 80 of about 122,676 (186)

On Semi-Markov and Semiregenerative Processes II

open access: yesThe Annals of Probability, 1978
An ergodic theorem is given for the age process $(I(t), Z(t))$ associated with a (possibly transient) semi-Markov chain $(I_n, X_n)^\infty_{n=0}$ whose sojourn times are not exclusively integer valued. Asymptotically the Markov part $(I(t):$ the state occupied at time $t)$ and the renewal part $(Z(t):$ the age in $I(t)$ at time $t)$ split into ...
openaire   +4 more sources

Mathematical modeling of railway systems technical support readiness levels using an integral indicator based on the Harrington scale

open access: yesTransportation and Information Technologies in Russia
Background. The relevance of the study is due to the increasing demands on the reliability and safety of railway transport. Modern railway automation and telemechanics systems are elaborate technical complexes, the failure of which can lead to ...
Aleksandr V. Gorelik, Elena V. Kuzmina
doaj   +1 more source

Shallow seismicity in the area of Greece: its character as seen by means of a stochastic model [PDF]

open access: yesNonlinear Processes in Geophysics, 1995
Occurrence of successive earthquake events in space is analysed by means of semi-stochastic processes. The analysis employs earthquakes events with M > 5.2 from the area of Greece and its surroundings (18-31° E, 34-43° N) for the time interval 1911-1985.
L. C. Polimenakos
doaj  

Leveraging Semi-Markov Models to Identify Anomalies of Activities of Daily Living in Smart Homes Processes

open access: yesAlgorithms
Stochastic Process Mining, in particular, Markov processes, is used to represent uncertainty and variability in Activities of Daily Living (ADLs). However, the Markov models inherently assume that the time spent in each state must follow an exponential ...
Eman Shaikh   +4 more
doaj   +1 more source

Inferring parental genomic ancestries using pooled semi-Markov processes. [PDF]

open access: yesBioinformatics, 2015
Zou JY   +3 more
europepmc   +1 more source

Concept of Semi -Markov Process

open access: yesScientific Journal of Polish Naval Academy, 2016
Abstract This paper provides the definitions and basic properties related to a discrete state space semi-Markov process. The semi-Markov process is constructed by the so called Markov renewal process that is a special case the two-dimensional Markov sequence.
openaire   +1 more source

COVARIANCE MATRIX OF MULTIVARIATE REWARD PROCESSES WITH NONLINEAR REWARD FUNCTIONS [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2003
Multivariate reward processes with reward functions of constant rates, defined on a semi-Markov process, first were studied by Masuda and Sumita, 1991. Reward processes with nonlinear reward functions were introduced in Soltani, 1996.
doaj  

Semi-Markov processes for reliability studies [PDF]

open access: yes, 1997
Cocozza-Thivent, Christiane   +1 more
core   +1 more source

REVIEW ON OPERATION STATE ASSESSMENT AND PROGNOSTICS FOR MECHANICAL EQUIPMENT BASED ON HIDDEN MARKOV MODEL

open access: yesJixie qiangdu, 2017
With the continuous improvement requirements of reliability and security for mechanical equipment,accurate extraction of equipment fault development trend of degradation characteristic information and establishment of effective fault prediction model is ...
JI Yun   +3 more
doaj  

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