Results 11 to 20 of about 3,485 (230)

A note on the sojourn time distribution of an M/G/1 queue with a single working vacation and vacation interruption

open access: yesOperations Research Perspectives, 2015
We study the paper of Gao and Liu (2013). In the paper, the authors pay little attention to the customer’s sojourn time in their model although both the queue length and the busy cycle are seriously analyzed.
Doo Ho Lee, Bo Keun Kim
doaj   +2 more sources

Sojourn Time Analysis of a Single-Server Queue with Single- and Batch-Service Customers

open access: yesMathematics
There are various types of sharing economy services, such as ride-sharing and shared-taxi rides. Motivated by these services, we consider a single-server queue in which customers probabilistically select the type of service, that is, the single service ...
Yusei Koyama   +2 more
doaj   +2 more sources

Analysis of the Discrete-time Multi-queue System with a Cycle-based Scheduler

open access: yesJournal of Telecommunications and Information Technology, 2021
This paper presents an analysis of a discrete-time multi-queue system handling a number of packet streams. The analysis focuses on calculating system state distribution and packet sojourn time distribution.
Wojciech Burakowsk, Maciej Sosnowski
doaj   +1 more source

Performance characteristics of the fork-join queuing system

open access: yesInformatika, 2023
Objectives. The problem of investigating a fork-join queuing system is considered. It is required to build the process of the system functioning, to find the condition for the existence of a stationary distribution, and propose algorithms for calculating
V. I. Klimenok
doaj   +1 more source

Reliability and Inference for Multi State Systems: The Generalized Kumaraswamy Case

open access: yesMathematics, 2021
Semi-Markov processes are typical tools for modeling multi state systems by allowing several distributions for sojourn times. In this work, we focus on a general class of distributions based on an arbitrary parent continuous distribution function G with ...
Vlad Stefan Barbu   +2 more
doaj   +1 more source

A Two-Server Queue with Interdependence between Arrival and Service Processes

open access: yesMathematics, 2023
In this paper, we analyse a queueing system with two servers where the arrival and service processes are interdependent. The evolution of these processes is governed by transitions on the product space of three Markov chains, which are descriptors of the
Sindhu S   +2 more
doaj   +1 more source

Performance evaluation of unreliable system with infinite number of servers [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2020
In the paper, we investigate queueing system M/G/∞ with non–homogeneous customers. As non–homogenity, we mean that each customer is characterized by some arbitrarily distributed random volume.
O. Tikhonenko, M. Ziółkowski
doaj   +1 more source

A simple model for COVID-19

open access: yesInfectious Disease Modelling, 2020
An SL1L2I1I2A1A2R epidemic model is formulated that describes the spread of an epidemic in a population. The model incorporates an Erlang distribution of times of sojourn in incubating, symptomatically and asymptomatically infectious compartments.
Julien Arino, Stéphanie Portet
doaj   +1 more source

SemiMarkov: An R Package for Parametric Estimation in Multi-State Semi-Markov Models

open access: yesJournal of Statistical Software, 2015
Multi-state models provide a relevant tool for studying the observations of a continuous-time process at arbitrary times. Markov models are often considered even if semi-Markov are better adapted in various situations.
Agnieszka Król, Philippe Saint-Pierre
doaj   +1 more source

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