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Thursday, July 16, 2020 | History

4 edition of Iterative methods for overflow queueing models. found in the catalog.

Iterative methods for overflow queueing models.

by Raymond H. Chan

  • 376 Want to read
  • 40 Currently reading

Published by Courant Institute of Mathematical Sciences, New York University in New York .
Written in English


The Physical Object
Pagination129 p.
Number of Pages129
ID Numbers
Open LibraryOL17979434M

"In this book’s essential notions on Markov chains, hidden Markov models, and Markov decision processes are covered, with special emphasis on iterative methods for solving linear systems. Each chapter finishes with a short summary and sometimes a selection of open problems. . This new edition of Markov Chains: Models, Algorithms and Applications has been completely reformatted as a text, complete with end-of-chapter exercises, a new focus on management science, new applications of the models, and new examples with applications in financial risk management and modeling of financial data.. This book consists of eight chapters.

Methods are presented for computing the equilibrium distribution of customers in closed queueing networks with exponential servers. Expressions for various marginal distributions are also derived. The computational algorithms are based on two-dimensional iterative techniques which are highly efficient and quite simple to implement.   An MMPP/M/1 queue with breakdowns. We illustrate the validity of our approach by considering a single server in a random environment which is identical to that considered in Section That is, the server has a failure rate γ=3 and a repair rate δ= arrival process is the aggregate of 10 independent on–off sources, 5 of Type 1 (with α 1 =3 and β 1 =2), and 5 of Type 2 (with α.

Iterative Methods for Queuing and Manufacturing Systems introduces the recent advances and developments in iterative methods for solving Markovian queuing and manufacturing problems. Another aim of the methods of this chapter is to address model-free situations, i.e., problems where a mathematical model is unavailable or hard to construct. Instead, the system and cost structure may be sim-ulated (think, for example, of a queueing network with complicated but well-defined service disciplines at the queues).


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Iterative methods for overflow queueing models by Raymond H. Chan Download PDF EPUB FB2

Markovian queueing networks having overflow capacity are discussed. The Kolmogorov balance equations result in a linear homogeneous system, where the right null-vector is the steady-state probability distribution for the network.

Preconditioned conjugate gradient methods are Cited by: Chan R () Iterative methods for overflow queuing models II, Numerische Mathematik,(), Online publication date: 1-Jan Save to Binder Create a New Binder.

Preconditioned conjugate gradient methods are employed to find the steady-state probability distribution of Markovian queuing networks that have overflow capacity. Different singular preconditioners that can be handled by separation of variables are discussed.

The resulting preconditioned systems are nonsingular. Numerical results show that the number of iterations Cited by: Chan R.H. () Iterative Methods for Queueing Networks with Irregular State-Spaces.

In: Meyer C.D., Plemmons R.J. (eds) Linear Algebra, Markov Chains, and Queueing Models. The IMA Volumes in Mathematics and its Applications, vol We consider finding the stationary probability distribution vectors of Markovian queueing models having batch arrivals by using the preconditioned conjugate gradient (PCG) method.

The preconditioners are constructed by exploiting the near-Toeplitz structure of the generator matrix of the model and are products of circulant matrices and band Cited by: 2. () Iterative methods for overflow queuing models II. Numerische Mathematik() Parallel processing for transient nonlinear structural dynamics of three-dimensional framed structures using domain decomposition.

We discuss iterative methods for each of these three formulations. Many of the applications, such as queuing modeling, have special structure that can be exploited computationally, and we give special emphasis to three ideas for exploiting this structure: decomposability, separability, Cited by:   Queueing theory is an useful tool for many models that can assist the long-run decision, see for instance.

In fact, most analytic models describe a FMS as a queueing system, in which the customers are the jobs to be processed or the product in inventory and the servers are simply the reliable machines (workstations) [1]. A queueing system is said to be in statistical equilibrium, or steady state, if the probability that the system is in a given state is not time dependent e.g., the prob.

of having n people in the system doesn’t depend on time –Pr(L(t)=n) is some value P n for all time t For relatively simple queueing models, some of. probability of buffer overflow, etc. The art of applied queueing theory is to construct a model that is simple enough so that it yields to mathematical analysis, yet contains sufficient detail so that its performance measures reflect the behavior of the real system.

Queueing theory was born in the early s with the work of A. Erlang of the. In these lectures our attention is restricted to models with one queue. Situations with multiple queues are treated in the course \Networks of queues." More advanced techniques for the exact, approximative and numerical analysis of queueing models are the subject of the course \Algorithmic methods in queueing theory." The organization is as.

The iterative model is a particular implementation of a software development life cycle (SDLC) that focuses on an initial, simplified implementation, which then progressively gains more complexity and a broader feature set until the final system is complete.

When discussing the iterative method, the concept of incremental development will also often be used liberally and. Iterative methods and simulation techniques are common and powerful tools for solving the captured problems.

The main focus of this book is the application of iterative methods in solving Markovian. vant to the queueing and teletraffic models of this book. These two chapters provide a summary of the key topics with relevant homework assignments that are especially tailored for under-standing the queueing and teletraffic models discussed in later chapters.

The content of these chapters is mainly based on [18, 34, 90, 95, 96, 97]. Iterative methods for overflow queueing models I. Article. Mar ; Book. Jan ; Classical iterative methods, such as the block Gauss-Seidel method are usually employed to solve for. This paper considers two approaches to the numerical solution of single node queueing models.

Both approaches use a phase-type distribution to model very general service processes. The first approach is explicit and sometimes can exploit the structure of certain balance equations to reduce the global balance equations from a set of second order.

The iterator objects are required to support the following two methods, which together form the iterator protocol: iterator.__iter__() Return the iterator object itself. This is required to allow both containers (also called collections) and iterators to be used with the for and in statements. iterator.__next__() Return the next item from the.

() Iterative methods for overflow queuing models II. Numerische Mathematik() A note on the capacitance matrix algorithm, substructuring, and mixed or neumann boundary conditions.

Linear Algebra, Markov Chains, and Queueing Models, () Deflated Krylov subspace methods for nearly singular linear systems. Journal of Optimization Theory. A product-form approximation method for general closed queueing networks with several classes of customers Performance Evaluation, Vol.

24, No. 3 On the Effects of Using the Grassmann–Taksar–Heyman Method in Iterative Aggregation–Disaggregation. On the Overflow Process from a Finite Markovian Queue Erik A. van Doorn Centre for Mathematics and Computer Science, KruislaanSJ Amsterdam, The Netherlands Received 3 May Revised 21 February ; 7 May We determine the distribution of the time between overflows for a single server Markovian queueing system with finite waiting room and state.

than direct methods (especially when an approximate solution of relatively low accuracy is sought), they do not have the reliability of direct methods. In some applications, iterative methods often fail and preconditioning is necessary, though not always sufficient, to .Later, applications of nonnegativity and M-matrices are given; for numerical analysis the example is convergence theory of iterative methods, for probability and statistics the examples are finite Markov chains and queuing network models, for mathematical economics the example is input-output models, and for mathematical programming the example.