Accedi

Bibliografie tematiche / Distributions à queues lourdes / Articoli di riviste

Segui questo link per vedere altri tipi di pubblicazioni sul tema: Distributions à queues lourdes.

Articoli di riviste sul tema "Distributions à queues lourdes"

Autore: Grafiati

Pubblicato: 26 ottobre 2024

Cita una fonte nei formati APA, MLA, Chicago, Harvard e in molti altri stili

Scegli il tipo di fonte:

Vedi i top-50 articoli di riviste per l'attività di ricerca sul tema "Distributions à queues lourdes".

Accanto a ogni fonte nell'elenco di riferimenti c'è un pulsante "Aggiungi alla bibliografia". Premilo e genereremo automaticamente la citazione bibliografica dell'opera scelta nello stile citazionale di cui hai bisogno: APA, MLA, Harvard, Chicago, Vancouver ecc.

Puoi anche scaricare il testo completo della pubblicazione scientifica nel formato .pdf e leggere online l'abstract (il sommario) dell'opera se è presente nei metadati.

Vedi gli articoli di riviste di molte aree scientifiche e compila una bibliografia corretta.

1

Tahiananirina, RAZAFINDRALAMBO Hasina, RAZAFIMANDIMBY Honoré, RAMAHAZOSOA Irrish Parker, RABEHARISOA Jean Marc e RATIARISON Adolphe Andriamanga. "Estimations Des Quantiles Extrêmes Des Précipitations Convectives Avec Les Distributions des Valeurs Extrêmes Généralisées : Cas Des Plaines De La Basse Betsiboka". International Journal of Progressive Sciences and Technologies 40, n. 1 (30 agosto 2023): 308. http://dx.doi.org/10.52155/ijpsat.v40.1.5578.

Testo completo

Abstract (sommario):

Résumé - L’objectif de cette étude est d’estimer la fréquence de retour des précipitations convectives extrêmes dans les plaines de la basse Betsiboka, Madagascar. L’approche méthodologique consiste à trouver les distributions statistiques des pluies convectives journalières maximales annuelles de 1959 à 2021 en les ajustant avec des distributions des valeurs extrêmes généralisées. Les paramètres des distributions des valeurs extrêmes généralisées ont été estimés par la méthode des moments pondérés. Les résultats obtenus montrent que l’ajustement des données étudiées avec les distributions des valeurs extrêmes généralisées sont adéquats. En outre, les maximas annuels suivent des distributions à queues lourdes. Les pluies convectives extrêmes sont imprévisibles et engendrent des crues et inondations qui pourront avoir des conséquences économiques et sociales graves dans cette zone. L’estimation de la récurrence de ces évènements météorologiques extrêmes est donc d’un grand intérêt.

Gli stili APA, Harvard, Vancouver, ISO e altri

2

Szczotka, Władysław. "Stationary representation of queues. I". Advances in Applied Probability 18, n. 3 (settembre 1986): 815–48. http://dx.doi.org/10.2307/1427189.

Testo completo

Abstract (sommario):

The paper deals with the asymptotic behaviour of queues for which the generic sequence is not necessarily stationary but is asymptotically stationary in some sense. The latter property is defined by an appropriate type of convergence of probability distributions of the sequences to the distribution of a stationary sequence We consider six types of convergence of to The main result is as follows: if the sequence of the distributions converges in one of six ways then the sequence of distributions of the sequences converges in the same way, independently of initial conditions. Furthermore the limiting distribution is the same as the limiting distribution obtained by the weak convergence of the distributions Here wk and w∗k denote the waiting time of the kth unit in the queue generated by (v, u) and (v0, u0) respectively.

Gli stili APA, Harvard, Vancouver, ISO e altri

3

Szczotka, Władysław. "Stationary representation of queues. I". Advances in Applied Probability 18, n. 03 (settembre 1986): 815–48. http://dx.doi.org/10.1017/s0001867800016086.

Testo completo

Abstract (sommario):

The paper deals with the asymptotic behaviour of queues for which the generic sequence is not necessarily stationary but is asymptotically stationary in some sense. The latter property is defined by an appropriate type of convergence of probability distributions of the sequences to the distribution of a stationary sequence We consider six types of convergence of to The main result is as follows: if the sequence of the distributions converges in one of six ways then the sequence of distributions of the sequences converges in the same way, independently of initial conditions. Furthermore the limiting distribution is the same as the limiting distribution obtained by the weak convergence of the distributions Here wk and w∗ k denote the waiting time of the kth unit in the queue generated by ( v, u ) and ( v 0, u 0) respectively.

Gli stili APA, Harvard, Vancouver, ISO e altri

4

Chaudhry, Mohan L., Indra e Vijay Rajan. "Analytically Simple and Computationally Efficient Solution to Geo/G/1 and Geo/G/1/N Queues Involving Heavy-tailed Distributions for Service Times". Calcutta Statistical Association Bulletin 70, n. 1 (maggio 2018): 74–85. http://dx.doi.org/10.1177/0008068318770566.

Testo completo

Abstract (sommario):

The previous studies pertaining to the queues Geo/G/1 and Geo/G/1/N involve light-tailed distributions for service time. However, due to applications of heavy-tailed distributions in computer science and financial engineering, these distributions are used for service time. This article provides a simple and computationally efficient solution to the queues Geo/G/1 and Geo/G/1/N involving heavy-tailed distributions for service times.

Gli stili APA, Harvard, Vancouver, ISO e altri

5

Karpelevitch, F. I., e A. Ya Kreinin. "Joint distributions in Poissonian tandem queues". Queueing Systems 12, n. 3-4 (settembre 1992): 273–86. http://dx.doi.org/10.1007/bf01158803.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

6

Taylor, Nicholas B., e Benjamin G. Heydecker. "Estimating probability distributions of dynamic queues". Transportation Planning and Technology 38, n. 1 (20 novembre 2014): 3–27. http://dx.doi.org/10.1080/03081060.2014.976987.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

7

Wang, P. Patrick, e Vicky F. Locker. "Steady-State Distributions Of Parallel Queues". INFOR: Information Systems and Operational Research 39, n. 1 (febbraio 2001): 89–106. http://dx.doi.org/10.1080/03155986.2001.11732428.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

8

Miyazawa, Masakiyo, e Ronald W. Wolff. "Symmetric queues with batch departures and their networks". Advances in Applied Probability 28, n. 1 (marzo 1996): 308–26. http://dx.doi.org/10.2307/1427923.

Testo completo

Abstract (sommario):

Batch departures arise in various applications of queues. In particular, such models have been studied recently in connection with production systems. For the most part, however, these models assume Poisson arrivals and exponential service times; little is known about them under more general settings. We consider how their stationary queue length distributions are affected by the distributions of interarrival times, service times and departing batch sizes of customers. Since this is not an easy problem even for single departure models, we first concentrate on single-node queues with a symmetric service discipline, which is known to have nice properties. We start with pre-emptive LIFO, a special case of the symmetric service discipline, and then consider symmetric queues with Poisson arrivals. Stability conditions and stationary queue length distributions are obtained for them, and several stochastic order relations are considered. For the symmetric queues and Poisson arrivals, we also discuss their network. Stability conditions and the stationary joint queue length distribution are obtained for this network.

Gli stili APA, Harvard, Vancouver, ISO e altri

9

Miyazawa, Masakiyo, e Ronald W. Wolff. "Symmetric queues with batch departures and their networks". Advances in Applied Probability 28, n. 01 (marzo 1996): 308–26. http://dx.doi.org/10.1017/s0001867800027385.

Testo completo

Abstract (sommario):

Batch departures arise in various applications of queues. In particular, such models have been studied recently in connection with production systems. For the most part, however, these models assume Poisson arrivals and exponential service times; little is known about them under more general settings. We consider how their stationary queue length distributions are affected by the distributions of interarrival times, service times and departing batch sizes of customers. Since this is not an easy problem even for single departure models, we first concentrate on single-node queues with a symmetric service discipline, which is known to have nice properties. We start with pre-emptive LIFO, a special case of the symmetric service discipline, and then consider symmetric queues with Poisson arrivals. Stability conditions and stationary queue length distributions are obtained for them, and several stochastic order relations are considered. For the symmetric queues and Poisson arrivals, we also discuss their network. Stability conditions and the stationary joint queue length distribution are obtained for this network.

Gli stili APA, Harvard, Vancouver, ISO e altri

10

Hunter, Jeffrey J. "Filtering of Markov renewal queues, IV: Flow processes in feedback queues". Advances in Applied Probability 17, n. 2 (giugno 1985): 386–407. http://dx.doi.org/10.2307/1427147.

Testo completo

Abstract (sommario):

This paper is a continuation of the study of a class of queueing systems where the queue-length process embedded at basic transition points, which consist of ‘arrivals’, ‘departures’ and ‘feedbacks’, is a Markov renewal process (MRP). The filtering procedure of Çinlar (1969) was used in [12] to show that the queue length process embedded separately at ‘arrivals’, ‘departures’, ‘feedbacks’, ‘inputs’ (arrivals and feedbacks), ‘outputs’ (departures and feedbacks) and ‘external’ transitions (arrivals and departures) are also MRP. In this paper expressions for the elements of each Markov renewal kernel are derived, and thence expressions for the distribution of the times between transitions, under stationary conditions, are found for each of the above flow processes. In particular, it is shown that the inter-event distributions for the arrival process and the departure process are the same, with an equivalent result holding for inputs and outputs. Further, expressions for the stationary joint distributions of successive intervals between events in each flow process are derived and interconnections, using the concept of reversed Markov renewal processes, are explored. Conditions under which any of the flow processes are renewal processes or, more particularly, Poisson processes are also investigated. Special cases including, in particular, the M/M/1/N and M/M/1 model with instantaneous Bernoulli feedback, are examined.

Gli stili APA, Harvard, Vancouver, ISO e altri

11

Hunter, Jeffrey J. "Filtering of Markov renewal queues, IV: Flow processes in feedback queues". Advances in Applied Probability 17, n. 02 (giugno 1985): 386–407. http://dx.doi.org/10.1017/s0001867800015032.

Testo completo

Abstract (sommario):

This paper is a continuation of the study of a class of queueing systems where the queue-length process embedded at basic transition points, which consist of ‘arrivals’, ‘departures’ and ‘feedbacks’, is a Markov renewal process (MRP). The filtering procedure of Çinlar (1969) was used in [12] to show that the queue length process embedded separately at ‘arrivals’, ‘departures’, ‘feedbacks’, ‘inputs’ (arrivals and feedbacks), ‘outputs’ (departures and feedbacks) and ‘external’ transitions (arrivals and departures) are also MRP. In this paper expressions for the elements of each Markov renewal kernel are derived, and thence expressions for the distribution of the times between transitions, under stationary conditions, are found for each of the above flow processes. In particular, it is shown that the inter-event distributions for the arrival process and the departure process are the same, with an equivalent result holding for inputs and outputs. Further, expressions for the stationary joint distributions of successive intervals between events in each flow process are derived and interconnections, using the concept of reversed Markov renewal processes, are explored. Conditions under which any of the flow processes are renewal processes or, more particularly, Poisson processes are also investigated. Special cases including, in particular, the M/M/1/N and M/M/1 model with instantaneous Bernoulli feedback, are examined.

Gli stili APA, Harvard, Vancouver, ISO e altri

12

Tarasov, V. N. "Analysis of queues with hyperexponential arrival distributions". Problems of Information Transmission 52, n. 1 (gennaio 2016): 14–23. http://dx.doi.org/10.1134/s0032946016010038.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

13

Harrison, Peter G., e Edwige Pitel. "Response time distributions in tandem G-networks". Journal of Applied Probability 32, n. 1 (marzo 1995): 224–46. http://dx.doi.org/10.2307/3214932.

Testo completo

Abstract (sommario):

The Laplace transform of the probability distribution of the end-to-end delay in tandem networks is obtained where the first and/or second queue are G-queues, i.e. they have negative arrivals. For the most general case the method is based on the solution of a boundary value problem on a closed contour in the complex plane, which itself reduces to the solution of a Fredholm integral equation of the second kind. We also consider the dependence or independence of the sojourn times at each queue in the two special cases where only one of the queues is a G-queue, the other having no negative arrivals.

Gli stili APA, Harvard, Vancouver, ISO e altri

14

Harrison, Peter G., e Edwige Pitel. "Response time distributions in tandem G-networks". Journal of Applied Probability 32, n. 01 (marzo 1995): 224–46. http://dx.doi.org/10.1017/s0021900200102682.

Testo completo

Abstract (sommario):

The Laplace transform of the probability distribution of the end-to-end delay in tandem networks is obtained where the first and/or second queue are G-queues, i.e. they have negative arrivals. For the most general case the method is based on the solution of a boundary value problem on a closed contour in the complex plane, which itself reduces to the solution of a Fredholm integral equation of the second kind. We also consider the dependence or independence of the sojourn times at each queue in the two special cases where only one of the queues is a G-queue, the other having no negative arrivals.

Gli stili APA, Harvard, Vancouver, ISO e altri

15

Ayesta, Urtzi. "A Unifying Conservation Law for Single-Server Queues". Journal of Applied Probability 44, n. 4 (dicembre 2007): 1078–87. http://dx.doi.org/10.1239/jap/1197908826.

Testo completo

Abstract (sommario):

We develop a conservation law for a multi-class GI/GI/1 queue operating under a general work-conserving scheduling discipline. For single-class single-server queues, conservation laws have been obtained for both nonanticipating and anticipating disciplines with general service time distributions. For multi-class single-server queues, conservation laws have been obtained for (i) nonanticipating disciplines with exponential service time distributions and (ii) nonpreemptive nonanticipating disciplines with general service time distributions. The unifying conservation law we develop generalizes already existing conservation laws. In addition, it covers popular nonanticipating multi-class time-sharing disciplines such as discriminatory processor sharing (DPS) and generalized processor sharing (GPS) with general service time distributions. As an application, we show that the unifying conservation law can be used to compare the expected unconditional response time under two scheduling disciplines.

Gli stili APA, Harvard, Vancouver, ISO e altri

16

Ayesta, Urtzi. "A Unifying Conservation Law for Single-Server Queues". Journal of Applied Probability 44, n. 04 (dicembre 2007): 1078–87. http://dx.doi.org/10.1017/s0021900200003752.

Testo completo

Abstract (sommario):

We develop a conservation law for a multi-class GI/GI/1 queue operating under a general work-conserving scheduling discipline. For single-class single-server queues, conservation laws have been obtained for both nonanticipating and anticipating disciplines with general service time distributions. For multi-class single-server queues, conservation laws have been obtained for (i) nonanticipating disciplines with exponential service time distributions and (ii) nonpreemptive nonanticipating disciplines with general service time distributions. The unifying conservation law we develop generalizes already existing conservation laws. In addition, it covers popular nonanticipating multi-class time-sharing disciplines such as discriminatory processor sharing (DPS) and generalized processor sharing (GPS) with general service time distributions. As an application, we show that the unifying conservation law can be used to compare the expected unconditional response time under two scheduling disciplines.

Gli stili APA, Harvard, Vancouver, ISO e altri

17

Gelenbe, Erol, Peter Glynn e Karl Sigman. "Queues with negative arrivals". Journal of Applied Probability 28, n. 1 (marzo 1991): 245–50. http://dx.doi.org/10.2307/3214756.

Testo completo

Abstract (sommario):

We study single-server queueing models where in addition to regular arriving customers, there are negative arrivals. A negative arrival has the effect of removing a customer from the queue. The way in which this removal is specified gives rise to several different models. Unlike the standard FIFOGI/GI/1 model, the stability conditions for these new models may depend upon more than just the arrival and service rates; the entire distributions of interarrival and service times may be involved.

Gli stili APA, Harvard, Vancouver, ISO e altri

18

Gelenbe, Erol, Peter Glynn e Karl Sigman. "Queues with negative arrivals". Journal of Applied Probability 28, n. 01 (marzo 1991): 245–50. http://dx.doi.org/10.1017/s0021900200039589.

Testo completo

Abstract (sommario):

We study single-server queueing models where in addition to regular arriving customers, there are negative arrivals. A negative arrival has the effect of removing a customer from the queue. The way in which this removal is specified gives rise to several different models. Unlike the standard FIFO GI/GI/1 model, the stability conditions for these new models may depend upon more than just the arrival and service rates; the entire distributions of interarrival and service times may be involved.

Gli stili APA, Harvard, Vancouver, ISO e altri

19

Li, Junping, e Anyue Chen. "Decay property of stopped Markovian bulk-arriving queues". Advances in Applied Probability 40, n. 1 (marzo 2008): 95–121. http://dx.doi.org/10.1239/aap/1208358888.

Testo completo

Abstract (sommario):

We consider decay properties including the decay parameter, invariant measures, invariant vectors, and quasistationary distributions of a Markovian bulk-arriving queue that stops immediately after hitting the zero state. Investigating such behavior is crucial in realizing the busy period and some other related properties of Markovian bulk-arriving queues. The exact value of the decay parameter λC is obtained and expressed explicitly. The invariant measures, invariant vectors, and quasistationary distributions are then presented. We show that there exists a family of invariant measures indexed by λ ∈ [0, λC]. We then show that, under some conditions, there exists a family of quasistationary distributions, also indexed by λ ∈ [0, λC]. The generating functions of these invariant measures and quasistationary distributions are presented. We further show that a stopped Markovian bulk-arriving queue is always λC-transient and some deep properties are revealed. The clear geometric interpretation of the decay parameter is explained. A few examples are then provided to illustrate the results obtained in this paper.

Gli stili APA, Harvard, Vancouver, ISO e altri

20

Li, Junping, e Anyue Chen. "Decay property of stopped Markovian bulk-arriving queues". Advances in Applied Probability 40, n. 01 (marzo 2008): 95–121. http://dx.doi.org/10.1017/s0001867800002391.

Testo completo

Abstract (sommario):

We consider decay properties including the decay parameter, invariant measures, invariant vectors, and quasistationary distributions of a Markovian bulk-arriving queue that stops immediately after hitting the zero state. Investigating such behavior is crucial in realizing the busy period and some other related properties of Markovian bulk-arriving queues. The exact value of the decay parameter λCis obtained and expressed explicitly. The invariant measures, invariant vectors, and quasistationary distributions are then presented. We show that there exists a family of invariant measures indexed by λ ∈ [0, λC]. We then show that, under some conditions, there exists a family of quasistationary distributions, also indexed by λ ∈ [0, λC]. The generating functions of these invariant measures and quasistationary distributions are presented. We further show that a stopped Markovian bulk-arriving queue is always λC-transient and some deep properties are revealed. The clear geometric interpretation of the decay parameter is explained. A few examples are then provided to illustrate the results obtained in this paper.

Gli stili APA, Harvard, Vancouver, ISO e altri

21

Chang, Cheng-Shang. "On the input-output map of a G/G/1 queue". Journal of Applied Probability 31, n. 4 (dicembre 1994): 1128–33. http://dx.doi.org/10.2307/3215337.

Testo completo

Abstract (sommario):

In this note, we consider G/G/1 queues with stationary and ergodic inputs. We show that if the service times are independent and identically distributed with unbounded supports, then for a given mean of interarrival times, the number of sequences (distributions) of interarrival times that induce identical distributions on interdeparture times is at most 1. As a direct consequence, among all the G/M/1 queues with stationary and ergodic inputs, the M/M/1 queue is the only queue whose departure process is identically distributed as the input process.

Gli stili APA, Harvard, Vancouver, ISO e altri

22

Chang, Cheng-Shang. "On the input-output map of a G/G/1 queue". Journal of Applied Probability 31, n. 04 (dicembre 1994): 1128–33. http://dx.doi.org/10.1017/s0021900200099654.

Testo completo

Abstract (sommario):

In this note, we consider G/G/1 queues with stationary and ergodic inputs. We show that if the service times are independent and identically distributed with unbounded supports, then for a given mean of interarrival times, the number of sequences (distributions) of interarrival times that induce identical distributions on interdeparture times is at most 1. As a direct consequence, among all the G/M/1 queues with stationary and ergodic inputs, the M/M/1 queue is the only queue whose departure process is identically distributed as the input process.

Gli stili APA, Harvard, Vancouver, ISO e altri

23

Boxma, O. J., e V. Dumas. "Fluid queues with long-tailed activity period distributions". Computer Communications 21, n. 17 (novembre 1998): 1509–29. http://dx.doi.org/10.1016/s0140-3664(98)00219-9.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

24

Fakinos, D. "Equilibrium queue size distributions for semi-reversible queues". Stochastic Processes and their Applications 36, n. 2 (dicembre 1990): 331–37. http://dx.doi.org/10.1016/0304-4149(90)90099-e.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

25

Ciucu, Florin, Felix Poloczek e Amr Rizk. "Queue and Loss Distributions in Finite-Buffer Queues". ACM SIGMETRICS Performance Evaluation Review 47, n. 1 (17 dicembre 2019): 65–66. http://dx.doi.org/10.1145/3376930.3376972.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

26

Takács, Lajos. "Limit distributions for queues and random rooted trees". Journal of Applied Mathematics and Stochastic Analysis 6, n. 3 (1 gennaio 1993): 189–216. http://dx.doi.org/10.1155/s1048953393000176.

Testo completo

Abstract (sommario):

In this paper several limit theorems are proved for the fluctuations of the queue size during the initial busy period of a queuing process with one server. These theorems are used to find the solutions of various problems connected with the heights and widths of random rooted trees.

Gli stili APA, Harvard, Vancouver, ISO e altri

27

Ciucu, Florin, Felix Poloczek e Amr Rizk. "Queue and Loss Distributions in Finite-Buffer Queues". Proceedings of the ACM on Measurement and Analysis of Computing Systems 3, n. 2 (19 giugno 2019): 1–29. http://dx.doi.org/10.1145/3341617.3326146.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

28

Kijima, Masaaki, e Naoki Makimoto. "Computation of quasi-stationary distributions in Markovian queues". Computers & Industrial Engineering 27, n. 1-4 (settembre 1994): 429–32. http://dx.doi.org/10.1016/0360-8352(94)90326-3.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

29

Shanthikumar, J. George, e Ushio Sumita. "On the busy-period distributions of M/G/1/K queues by state-dependent arrivals and FCFS/LCFS-P service disciplines". Journal of Applied Probability 22, n. 4 (dicembre 1985): 912–19. http://dx.doi.org/10.2307/3213958.

Testo completo

Abstract (sommario):

The busy-period distributions of M/G/1/K queues with state-dependent arrival rates are considered. Two recursion formulas for the Laplace–Stieltjes transforms of the busy periods under the FCFS and preempt resume LCFS service disciplines are obtained. It is shown that the busy-period distributions for the two service disciplines are, in general, different, in contrast to the fact that they coincide for ordinary M/G/1 queues. For deterministic service times and arrival rates non-increasing in the number of customers in the system, stochastic ordering between these two busy periods is also established.

Gli stili APA, Harvard, Vancouver, ISO e altri

30

Shanthikumar, J. George, e Ushio Sumita. "On the busy-period distributions of M/G/1/K queues by state-dependent arrivals and FCFS/LCFS-P service disciplines". Journal of Applied Probability 22, n. 04 (dicembre 1985): 912–19. http://dx.doi.org/10.1017/s0021900200108149.

Testo completo

Abstract (sommario):

The busy-period distributions of M/G/1/K queues with state-dependent arrival rates are considered. Two recursion formulas for the Laplace–Stieltjes transforms of the busy periods under the FCFS and preempt resume LCFS service disciplines are obtained. It is shown that the busy-period distributions for the two service disciplines are, in general, different, in contrast to the fact that they coincide for ordinary M/G/1 queues. For deterministic service times and arrival rates non-increasing in the number of customers in the system, stochastic ordering between these two busy periods is also established.

Gli stili APA, Harvard, Vancouver, ISO e altri

31

Lee, Ho Woo, Se Won Lee e Jongwoo Jeon. "Using factorization in analyzing D-BMAP/G/1 queues". Journal of Applied Mathematics and Stochastic Analysis 2005, n. 2 (1 gennaio 2005): 119–32. http://dx.doi.org/10.1155/jamsa.2005.119.

Testo completo

Abstract (sommario):

We demonstrate how one can use the factorization property to derive the queue-length distributions of the discrete-time BMAP/G/1 queues with complex operational behavior during the idle period. The procedure demonstrated in this paper can be applied to the analysis of many other discrete-time BMAP/G/1 queues with more behavioral complexities.

Gli stili APA, Harvard, Vancouver, ISO e altri

32

Glynn, Peter W., e Ward Whitt. "A new view of the heavy-traffic limit theorem for infinite-server queues". Advances in Applied Probability 23, n. 1 (marzo 1991): 188–209. http://dx.doi.org/10.2307/1427517.

Testo completo

Abstract (sommario):

This paper presents a new approach for obtaining heavy-traffic limits for infinite-server queues and open networks of infinite-server queues. The key observation is that infinite-server queues having deterministic service times can easily be analyzed in terms of the arrival counting process. A variant of the same idea applies when the service times take values in a finite set, so this is the key assumption. In addition to new proofs of established results, the paper contains several new results, including limits for the work-in-system process, limits for steady-state distributions, limits for open networks with general customer routes, and rates of convergence. The relatively tractable Gaussian limits are promising approximations for many-server queues and open networks of such queues, possibly with finite waiting rooms.

Gli stili APA, Harvard, Vancouver, ISO e altri

33

Glynn, Peter W., e Ward Whitt. "A new view of the heavy-traffic limit theorem for infinite-server queues". Advances in Applied Probability 23, n. 01 (marzo 1991): 188–209. http://dx.doi.org/10.1017/s0001867800023399.

Testo completo

Abstract (sommario):

This paper presents a new approach for obtaining heavy-traffic limits for infinite-server queues and open networks of infinite-server queues. The key observation is that infinite-server queues having deterministic service times can easily be analyzed in terms of the arrival counting process. A variant of the same idea applies when the service times take values in a finite set, so this is the key assumption. In addition to new proofs of established results, the paper contains several new results, including limits for the work-in-system process, limits for steady-state distributions, limits for open networks with general customer routes, and rates of convergence. The relatively tractable Gaussian limits are promising approximations for many-server queues and open networks of such queues, possibly with finite waiting rooms.

Gli stili APA, Harvard, Vancouver, ISO e altri

34

Pollett, P. K., e P. G. Taylor. "On the Problem of Establishing the Existence of Stationary Distributions for Continuous-Time Markov Chains". Probability in the Engineering and Informational Sciences 7, n. 4 (ottobre 1993): 529–43. http://dx.doi.org/10.1017/s0269964800003119.

Testo completo

Abstract (sommario):

We consider the problem of establishing the existence of stationary distributions for continuous-time Markov chains directly from the transition rates Q. Given an invariant probability distribution m for Q, we show that a necessary and sufficient condition for m to be a stationary distribution for the minimal process is that Q be regular. We provide sufficient conditions for the regularity of Q that are simple to verify in practice, thus allowing one to easily identify stationary distributions for a variety of models. To illustrate our results, we shall consider three classes of multidimensional Markov chains, namely, networks of queues with batch movements, semireversible queues, and partially balanced Markov processes.

Gli stili APA, Harvard, Vancouver, ISO e altri

35

Schassberger, R., e H. Daduna. "Sojourn times in queuing networks with multiserver modes". Journal of Applied Probability 24, n. 2 (giugno 1987): 511–21. http://dx.doi.org/10.2307/3214274.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

36

Schassberger, R., e H. Daduna. "Sojourn times in queuing networks with multiserver modes". Journal of Applied Probability 24, n. 02 (giugno 1987): 511–21. http://dx.doi.org/10.1017/s0021900200031144.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

37

Chao, Xiuli, Qi-Ming He e Sheldon Ross. "Tollbooth tandem queues with infinite homogeneous servers". Journal of Applied Probability 52, n. 4 (dicembre 2015): 941–61. http://dx.doi.org/10.1239/jap/1450802745.

Testo completo

Abstract (sommario):

In this paper we analyze a tollbooth tandem queueing problem with an infinite number of servers. A customer starts service immediately upon arrival but cannot leave the system before all customers who arrived before him/her have left, i.e. customers depart the system in the same order as they arrive. Distributions of the total number of customers in the system, the number of departure-delayed customers in the system, and the number of customers in service at time t are obtained in closed form. Distributions of the sojourn times and departure delays of customers are also obtained explicitly. Both transient and steady state solutions are derived first for Poisson arrivals, and then extended to cases with batch Poisson and nonstationary Poisson arrival processes. Finally, we report several stochastic ordering results on how system performance measures are affected by arrival and service processes.

Gli stili APA, Harvard, Vancouver, ISO e altri

38

Chao, Xiuli, Qi-Ming He e Sheldon Ross. "Tollbooth tandem queues with infinite homogeneous servers". Journal of Applied Probability 52, n. 04 (dicembre 2015): 941–61. http://dx.doi.org/10.1017/s0021900200113002.

Testo completo

Abstract (sommario):

In this paper we analyze a tollbooth tandem queueing problem with an infinite number of servers. A customer starts service immediately upon arrival but cannot leave the system before all customers who arrived before him/her have left, i.e. customers depart the system in the same order as they arrive. Distributions of the total number of customers in the system, the number of departure-delayed customers in the system, and the number of customers in service at time t are obtained in closed form. Distributions of the sojourn times and departure delays of customers are also obtained explicitly. Both transient and steady state solutions are derived first for Poisson arrivals, and then extended to cases with batch Poisson and nonstationary Poisson arrival processes. Finally, we report several stochastic ordering results on how system performance measures are affected by arrival and service processes.

Gli stili APA, Harvard, Vancouver, ISO e altri

39

König, Dieter, e Volker Schmidt. "Stationary queue-length characteristics in queues with delayed feedback". Journal of Applied Probability 22, n. 2 (giugno 1985): 394–407. http://dx.doi.org/10.2307/3213782.

Testo completo

Abstract (sommario):

A class of two-node queueing networks with general stationary ergodic governing sequence is considered. This means that, in particular, a non-Poissonian arrival process and dependent service times, as well as a non-Bernoulli feedback mechanism are admitted. A mixing condition ensures that the limiting distributions of the number of customers in the nodes observed in continuous time as well as at certain embedded epochs can be expressed by the Palm distributions of appropriately chosen marked point processes. This gives the possibility of connecting the classical concept of embedding with a general point-process approach. Furthermore, it leads to simple proofs of relationships between the limiting distributions. An example is given to illustrate how these relationships can be used to derive explicit formulas for various stationary queueing characteristics.

Gli stili APA, Harvard, Vancouver, ISO e altri

40

König, Dieter, e Volker Schmidt. "Stationary queue-length characteristics in queues with delayed feedback". Journal of Applied Probability 22, n. 02 (giugno 1985): 394–407. http://dx.doi.org/10.1017/s0021900200037852.

Testo completo

Abstract (sommario):

A class of two-node queueing networks with general stationary ergodic governing sequence is considered. This means that, in particular, a non-Poissonian arrival process and dependent service times, as well as a non-Bernoulli feedback mechanism are admitted. A mixing condition ensures that the limiting distributions of the number of customers in the nodes observed in continuous time as well as at certain embedded epochs can be expressed by the Palm distributions of appropriately chosen marked point processes. This gives the possibility of connecting the classical concept of embedding with a general point-process approach. Furthermore, it leads to simple proofs of relationships between the limiting distributions. An example is given to illustrate how these relationships can be used to derive explicit formulas for various stationary queueing characteristics.

Gli stili APA, Harvard, Vancouver, ISO e altri

41

Neuts, Marcel F. "Generalizations of the Pollaczek-Khinchin integral equation in the theory of queues". Advances in Applied Probability 18, n. 4 (dicembre 1986): 952–90. http://dx.doi.org/10.2307/1427258.

Testo completo

Abstract (sommario):

A classical result in queueing theory states that in the stable M/G/1 queue, the stationary distribution W(x) of the waiting time of an arriving customer or of the virtual waiting time satisfies a linear Volterra integral equation of the second kind, of convolution type. For many variants of the M/G/1 queue, there are corresponding integral equations, which in most cases differ from the Pollaczek–Khinchin equation only in the form of the inhomogeneous term. This leads to interesting factorizations of the waiting-time distribution and to substantial algorithmic simplifications. In a number of priority queues, the waiting-time distributions satisfy Volterra integral equations whose kernel is a functional of the busy-period distribution in related M/G/1 queues. In other models, such as the M/G/1 queue with Bernoulli feedback or with limited admissions of customers per service, there is a more basic integral equation of Volterra type, which yields a probability distribution in terms of which the waiting-time distributions are conveniently expressed.For several complex queueing models with an embedded Markov renewal process of M/G/1 type, one obtains matrix Volterra integral equations for the waiting-time distributions or for related vectors of mass functions. Such models include the M/SM/1 and the N/G/1 queues, as well as the M/G/1 queue with some forms of bulk service.When the service-time distributions are of phase type, the numerical computation of waiting-time distributions may commonly be reduced to the solution of systems of linear differential equations with constant coefficients.

Gli stili APA, Harvard, Vancouver, ISO e altri

42

Whitt, Ward. "LIMITS FOR CUMULATIVE INPUT PROCESSES TO QUEUES". Probability in the Engineering and Informational Sciences 14, n. 2 (aprile 2000): 123–50. http://dx.doi.org/10.1017/s0269964800142019.

Testo completo

Abstract (sommario):

We establish functional central limit theorems (FCLTs) for a cumulative input process to a fluid queue from the superposition of independent on–off sources, where the on periods and off periods may have heavy-tailed probability distributions. Variants of these FCLTs hold for cumulative busy-time and idle-time processes associated with standard queueing models. The heavy-tailed on-period and off-period distributions can cause the limit process to have discontinuous sample paths (e.g., to be a non-Brownian stable process or more general Lévy process) even though the converging processes have continuous sample paths. Consequently, we exploit the Skorohod M1 topology on the function space D of right-continuous functions with left limits. The limits here combined with the previously established continuity of the reflection map in the M1 topology imply both heavy-traffic and non-heavy-traffic FCLTs for buffer-content processes in stochastic fluid networks.

Gli stili APA, Harvard, Vancouver, ISO e altri

43

Miyoshi, Naoto, e Toshiharu Hasegawa. "Smoothed Perturbation Analysis for Single-Server Queues by Some General Service Disciplines". Advances in Applied Probability 29, n. 2 (giugno 1997): 545–66. http://dx.doi.org/10.2307/1428016.

Testo completo

Abstract (sommario):

We consider some single-server queues with general service disciplines, where the family of the queueing processes are parameterized by the service time distributions. Through the smoothed perturbation analysis (SPA) technique, we present under some mild conditions a unified approach to give the strongly consistent estimator for the gradient of the steady-state mean sojourn time with respect to the parameter of service time distributions, provided that it exists. Although the implementation of the SPA requires the additional sub-paths in general, the derived estimator is given as suitable for single-run computation. Simulation results are presented for queues with non-preemptive and preemptive-resume priority disciplines which demonstrate the performance of our estimators.

Gli stili APA, Harvard, Vancouver, ISO e altri

44

Miyoshi, Naoto, e Toshiharu Hasegawa. "Smoothed Perturbation Analysis for Single-Server Queues by Some General Service Disciplines". Advances in Applied Probability 29, n. 02 (giugno 1997): 545–66. http://dx.doi.org/10.1017/s0001867800028123.

Testo completo

Abstract (sommario):

We consider some single-server queues with general service disciplines, where the family of the queueing processes are parameterized by the service time distributions. Through the smoothed perturbation analysis (SPA) technique, we present under some mild conditions a unified approach to give the strongly consistent estimator for the gradient of the steady-state mean sojourn time with respect to the parameter of service time distributions, provided that it exists. Although the implementation of the SPA requires the additional sub-paths in general, the derived estimator is given as suitable for single-run computation. Simulation results are presented for queues with non-preemptive and preemptive-resume priority disciplines which demonstrate the performance of our estimators.

Gli stili APA, Harvard, Vancouver, ISO e altri

45

D. Gangadhar, Nandyala, e Govind R. Kadambi. "Delay Distributions in Discrete Time Multiclass Tandem Communication Network Models". International journal of electrical and computer engineering systems 13, n. 6 (1 settembre 2022): 417–25. http://dx.doi.org/10.32985/ijeces.13.6.1.

Testo completo

Abstract (sommario):

An exact computational algorithm for the solution of a discrete time multiclass tandem network with a primary class and cross-traffic at each queue is developed. A sequence of truncated Lindley recursions is defined at each queue relating the delays experienced by the first packet from consecutive batches of a class at that queue. Using this sequence of recursions, a convolve-and-sweep algorithm is developed to compute the stationary distributions of the delay and inter-departure processes of each class at a queue, delays experienced by a typical packet from the primary class along its path as well as the mean end-to-end delay of such a packet. The proposed approach is designed to handle the non-renewal arrival processes arising in the network. The algorithmic solution is implemented as an abstract class which permits its easy adaptation to analyze different network configurations and sizes. The delays of a packet at different queues are shown to be associated random variables from which it follows that the variance of total delay is lower bounded by the sum of variances of delays at the queues along the path. The developed algorithm and the proposed lower bound on the variance of total delay are validated against simulation for a tandem network of two queues with three classes under different batch size distributions.

Gli stili APA, Harvard, Vancouver, ISO e altri

46

Myers, Daniel S., e Mary K. Vernon. "Estimating queue length distributions for queues with random arrivals". ACM SIGMETRICS Performance Evaluation Review 40, n. 3 (4 dicembre 2012): 77–79. http://dx.doi.org/10.1145/2425248.2425268.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

47

Walraevens, Joris, Dieter Claeys e Tuan Phung-Duc. "Asymptotics of queue length distributions in priority retrial queues". Performance Evaluation 127-128 (novembre 2018): 235–52. http://dx.doi.org/10.1016/j.peva.2018.10.004.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

48

Sigman, Karl, e Ward Whitt. "Heavy-traffic limits for nearly deterministic queues: stationary distributions". Queueing Systems 69, n. 2 (30 luglio 2011): 145–73. http://dx.doi.org/10.1007/s11134-011-9253-y.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

49

Henderson, W., B. S. Northcote e P. G. Taylor. "Geometric equilibrium distributions for queues with interactive batch departures". Annals of Operations Research 48, n. 5 (ottobre 1994): 493–511. http://dx.doi.org/10.1007/bf02033316.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

50

Kijima, Masaaki. "Quasi-Stationary Distributions of Single-Server Phase-Type Queues". Mathematics of Operations Research 18, n. 2 (maggio 1993): 423–37. http://dx.doi.org/10.1287/moor.18.2.423.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Offriamo sconti su tutti i piani premium per gli autori le cui opere sono incluse in raccolte letterarie tematiche. Contattaci per ottenere un codice promozionale unico!