Results 101 to 110 of about 3,485 (230)

Additive functionals with application to sojourn times in infinite-server and processor sharing systems

open access: yes, 2012
We deal with an infinite-server system where the service speed is governed by a stationary and ergodic process with countably many states. Applying a random time transformation such that the service speed becomes one, the sojourn time of a class of ...
Brandt, Manfred, Brandt, Andreas
core   +1 more source

Progression to Wheelchair in Secondary Progressive Multiple Sclerosis and Impact of Siponimod: Post Hoc Analyses From the EXPAND Study

open access: yesEuropean Journal of Neurology, Volume 33, Issue 6, June 2026.
Siponimod lowered the risk of wheelchair use in SPMS patients compared to placebo, especially in those with active disease. Time to wheelchair is a key metric for evaluating treatment in SPMS. ABSTRACT Background Delaying time to requiring a wheelchair in people living with MS is an important treatment goal to maintain quality of life and guard against
Patrick Vermersch   +11 more
wiley   +1 more source

denim: An R package for deterministic compartmental models with flexible dwell‐time distributions

open access: yesMethods in Ecology and Evolution
Compartmental models are widely used for dynamical systems where states are discrete, such as in infectious disease epidemiology with the so‐called Susceptible‐Infectious‐Recovered (SIR) framework. For mathematical simplicity, rates of transition between
Thinh Phuc Ong   +3 more
doaj   +1 more source

Sojourn Time Distribution of the Asymmetric M/M/1//N-System with LCFS-PR Service

open access: yes, 1994
In this paper we present a recursive definition of the sojourn time probability distribution function of the M/M/1//N-LCFS-PR system. Applications of this model can be found in telecommunication systems and in manufacturing systems.
M. Mittler, R. Müller
core  

STATIONARY CHARACTERISTICS OF UNRELIABLE QUEUEING SYSTEM WITH BATCH MARKOVIAN ARRIVAL PROCESS AND RESERVE SERVER

open access: yesInformatika, 2016
In the paper, a queueing system with unreliable server and so called «cold» redundancy is analyzed. The system consists of an infinite buffer, the main unreliable server and the reliable reserve server.
V. I. Klimenok
doaj  

Randomized assignment of jobs to servers in heterogeneous clusters of shared servers for low delay

open access: yesStochastic Systems, 2016
We consider the problem of assignning jobs to servers in a multi-server system consisting of N parallel processor sharing servers, categorized into M (≪N) different types according to their processing capacities or speeds.
Arpan Mukhopadhyay   +2 more
doaj   +1 more source

MULTISERVER QUEUEING SYSTEM WITH MARKOVIAN ARRIVAL FLOW OF IMPATIENT CUSTOMERS OPERATING IN A RANDOM ENVIRONMENT

open access: yesInformatika, 2016
Multiserver queuing system with an infinite buffer and impatient customers, operating in a random environment is investigated. Customers arrive to the system according to the Markovian arrival flow.
S. A. Dudin, O. S. Dudina
doaj  

A deterministic simulation model for sojourn time in urban cells with square street geometry

open access: yes, 2008
A deterministic simulation model for the calculation of sojourn time statistics is proposed. The model is designed for urban cells taking into account city movement in street pattern, traffic lights, and crossings. Sojourn time and remaining sojourn time
Paschos, Georgios S.   +4 more
core   +1 more source

Estimation of the stationary distribution of a semi-Markov chain

open access: yes
This article is concerned with the estimation of the stationary distribution of a discretetime semi-Markov process. After briefly presenting the discrete-time semi-Markov setting, wepropose an estimator of the associated stationary distribution. The main
Bulla, Jan   +2 more
core  

Large deviations of sojourn times in processor sharing queues [PDF]

open access: yes, 2004
This paper presents a large deviation analysis of the steady-state sojourn time distribution in the GI/G/1 PS queue. Logarithmic estimates are obtained under the assumption of the service time distribution having a light tail, thus supplementing recent ...
Zwart, A.P.   +7 more
core  

Home - About - Disclaimer - Privacy