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1991 Winter Simulation Conference Proceedings.

8-11 Dec. 1991

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Displaying Results 1 - 25 of 161
  • 1991 Winter Simulation Conference Proceedings (Cat. No.91CH3050-2)

    Publication Year: 1991
    Request permission for commercial reuse | PDF file iconPDF (21 KB)
    Freely Available from IEEE
  • SIGMA tutorial

    Publication Year: 1991, Page(s):95 - 100
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (446 KB)

    SIGMA (simulation graphical modeling and analysis) is an interactive graphics approach to discrete event simulation. The author gives a brief introduction to simulation graph modeling with SIGMA. In addition, some recent advances in the SIGMA software are discussed and an example is presented. Among the recent enhancements to SIGMA are graphs for output analysis, ranked lists, and a facility for c... View full abstract»

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  • ProModel tutorial (manufacturing simulation)

    Publication Year: 1991, Page(s):101 - 105
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    ProModel combines the flexibility of general-purpose simulation languages and the easy-to-use features of manufacturing simulators. The authors present ProModel's design philosophy, describe its modeling elements, and illustrate these elements with an example. It is concluded that ProModel is designed for manufacturing companies to fully achieve the benefits of simulation technology at an affordab... View full abstract»

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  • SLAM II tutorial (simulation language)

    Publication Year: 1991, Page(s):112 - 117
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (407 KB)

    SLAM II is a simulation language which allows a modeler to formulate a system description using process, event, or continuous world views, or any combination of the three. Since its initial release in 1981, SLAM II has undergone continual development and application. The author provides an introduction to the modeling language and describes the most recent developments in SLAM II. Particular atten... View full abstract»

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  • Tutorial: Scheduling manufacturing systems with FACTOR

    Publication Year: 1991, Page(s):128 - 131
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (260 KB)

    The basic concepts of FACTOR version 5.0 as applied to scheduling a production facility are presented. The topics discussed include the FACTOR 5.0 modeling constructs, integration with existing production data, and the use of FACTOR for schedule creation and adjustment.<> View full abstract»

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  • PASION tutorial

    Publication Year: 1991, Page(s):152 - 156
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (348 KB)

    PASION, a process- and event-oriented simulation language designed for PASCAL users, is discussed. The language has a two-level (process/event) structure and permits the use of all the PASCAL structures. It also offers the main features of object-oriented programming. PASION provides the necessary facilities to handle sequences of random events, queues, and quasi-parallel processes, both discrete ... View full abstract»

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  • A tutorial introduction to object-oriented simulation and Sim++

    Publication Year: 1991, Page(s):157 - 163
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (517 KB)

    The key benefits of object-oriented programming, object-oriented simulation, and object-oriented parallel simulation are presented. This is followed by a tutorial introduction of Sim++, an object-oriented parallel simulation language. A simple transportation system simulation is used to introduce the basic simulation concepts and facilities provided by Sim++.<> View full abstract»

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  • Gradient estimation for ratios

    Publication Year: 1991, Page(s):986 - 993
    Cited by:  Papers (23)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (462 KB)

    The authors consider the interplay between gradient estimation and ratio estimation. Given unbiased estimators for the numerator and the denominator of the ratio, as well as their gradients, joint central-limit theorems for the ratio and its gradient are derived. The resulting confidence regions are of potential interest when optimizing such ratios numerically, or for sensitivity analysis with res... View full abstract»

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  • A replication approach to interval estimation in simulation

    Publication Year: 1991, Page(s):1023 - 1029
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB)

    The authors modify an earlier approach developed for reducing the bias of the estimator for the mean response in simulation caused by the initial conditions. They try to balance the bias of the estimator in a simulation run by imposing a bias in the opposite direction in a companion run by suitably setting its initial conditions. They present analytical results for the bias of the estimator for AR... View full abstract»

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  • The effects of batching on the power of the test for frequency domain methodology

    Publication Year: 1991, Page(s):1018 - 1022
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (324 KB)

    The author considers an implementation of frequency domain methodology (FDM) where input factor levels are held fixed in batches. In addition, the simulation output series is batched and the corresponding batch means are used as observations in the FDM factor screening analysis. For a certain class of metamodels, steady-state results are provided. Results are also provided for batch sizes chosen t... View full abstract»

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  • A Monte Carlo sampling plan based on product form estimation

    Publication Year: 1991, Page(s):1012 - 1017
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (156 KB)

    The author derives an improved bound on the time required to estimate the volume of a convex body in m-dimensional Euclidean space with a specified relative accuracy View full abstract»

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  • Comparing alternative methods for derivative estimation when IPA does not apply directly

    Publication Year: 1991, Page(s):1004 - 1011
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (556 KB)

    Alternative methods such as likelihood ratios (LRs), finite perturbation analysis (FPA), smoothed perturbation analysis (SPA), and rare perturbation analysis (RPA) have been proposed and could be used when infinitesimal perturbation analysis (IPA) does not apply directly. The authors discuss some links that exist between these methods and explain them by showing how each of them can be applied to ... View full abstract»

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  • Object-oriented graphical analysis

    Publication Year: 1991, Page(s):877 - 881
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (300 KB)

    The author describes how object-oriented techniques may be used in the output analysis phase of a simulation, using a system designed for highly interactive, graphical data analysis. The implementation is in Common Lisp; the graphic package is part of the QUAIL (quantitative analysis in Lisp) system. Applications to analysis of simulation data are discussed. The capabilities of the plot package ar... View full abstract»

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  • Introduction to SIMAN IV

    Publication Year: 1991, Page(s):106 - 111
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (448 KB)

    The SIMAN IV environment integrates model building, running, animation, and data analysis. The authors discuss the SIMAN IV simulation environment and the concepts and methods for simulating manufacturing systems using the SIMAN IV simulation language View full abstract»

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  • Simulation languages and database theory: some considerations from the entity-relationship model

    Publication Year: 1991, Page(s):1228 - 1235
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (556 KB)

    Entity-relationship (ER) database modeling techniques are applied to discrete event simulation. The ER model provides a logical way to organize the data from a simulation run. When the output data are stored using this organization, a relational database can be used to make queries in a database language that should answer virtually any question about the simulation performance and facilitate the ... View full abstract»

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  • On the performance of the immediate restart concurrency control policy

    Publication Year: 1991, Page(s):669 - 676
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (484 KB)

    The authors study the performance of a concurrency control algorithm based on locking, called the immediate restart. Under this policy a transaction that fails in acquiring a lock is immediately absorbed (and replaced by another transaction to maintain the same multiprogramming level). The aborted transaction is attempted once again after some delay. The authors discuss the factors that influence ... View full abstract»

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  • Application of perturbation analysis to (s,S) inventory systems

    Publication Year: 1991, Page(s):994 - 1003
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB)

    M.C. Fu (1990) used perturbation analysis to derive sample path derivatives of (s,S) inventory systems. It is noted that his results require the distribution of the aggregated demand during each review period. In the present work, the authors extend his results to (s,S) systems where the demand has an associated renewal arrival process. They derive a methodology to determine sample path derivative... View full abstract»

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  • Optimization test problems with uniformly distributed coefficients

    Publication Year: 1991, Page(s):866 - 874
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (572 KB)

    When an empirical evaluation of a solution method for an optimization problem is conducted, a standard approach is to generate test problems in which all of the coefficients are assumed to be independently and uniformly distributed. However, the performance of algorithms and heuristics can degrade as the correlation among the coefficients in integer programming test problems is strengthened. The a... View full abstract»

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  • Simulation with SIMNET II

    Publication Year: 1991, Page(s):132 - 135
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    An outline of the SIMNET II simulation language is presented. SIMNET II is a network-based discrete simulation language that utilizes only four nodes: a source, a queue, a facility, and an auxiliary. Routing of transactions among the four nodes is effected by executing special assignments along the branches linking the nodes. SIMNET II offers powerful computational capabilities at a level equal to... View full abstract»

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  • Interactive experiment planning to control knowledge-based simulation

    Publication Year: 1991, Page(s):1218 - 1227
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (664 KB)

    The author presents an initial attempt to facilitate the design and execution of simulation experiments through the use of an interactive, opportunistic, hierarchical planner. The planner provides an orderly way to control the planning and execution of simulation experiments without overly restricting the user to a preestablished routine. In addition to planning the simulation and keeping track of... View full abstract»

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  • The robustness of separable queueing network models

    Publication Year: 1991, Page(s):661 - 668
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (596 KB)

    Discrete event simulation is used to explore the robustness of queuing network models, a set of powerful analytical techniques for evaluating computer system performance. These techniques are shown to give good results even when some of the basic assumptions used to derive them are violated. It is also shown that simulation provides additional insights into computer system performance which are no... View full abstract»

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  • Material handling requirements for a distribution center

    Publication Year: 1991, Page(s):396 - 401
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (460 KB)

    The author describes a phased modeling approach used to evaluate material handling alternatives and operational changes for a high-volume food packaging, warehousing, and distribution plant. The goals of the project were to recommend methods for improving both throughput and storage capacity within the existing facility in order to accommodate anticipated increases in inventory and customer order ... View full abstract»

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  • A method for randomly generating capacitated networks

    Publication Year: 1991, Page(s):861 - 865
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (284 KB)

    A description is given of an approach for randomly generating capacitated (s,t)-networks of 10 nodes or more. A generator program written in BASIC demonstrates the approach. The results of run time experiments conducted with the generator for various network sizes are also presented. The generator, which can produce large networks very quickly, is designed for use with capacitated network optimiza... View full abstract»

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  • Simulating human tasks using simple natural language instructions

    Publication Year: 1991, Page(s):1049 - 1057
    Cited by:  Papers (3)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (832 KB)

    The authors report a simple natural language interface to a human task simulation system that graphically displays the performance of goal-directed tasks by an agent in a workspace. The inputs to the system are simple natural language commands requiring achievement of spatial relationships among objects in the workspace. To animate the behaviors denoted by instructions, a semantics of action verbs... View full abstract»

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  • Issues in modeling a national network of airports

    Publication Year: 1991, Page(s):756 - 761
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (492 KB)

    The modeling of networks consisting of a large number of geographically dispersed airports is considered. The need for models of this type has become clear recently as a result of growing systemwide congestion of air traffic, the propagation of delays from one airport to others, and the desire, at the national policy level, to intelligently allocate scarce federal resources among competing alterna... View full abstract»

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