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 (24)
    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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  • Secrets of successful simulation studies

    Publication Year: 1991, Page(s):21 - 27
    Cited by:  Papers (28)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (476 KB)

    In many simulation studies, the primary focus is on simulation software selection and programming. The authors believe, however, that only 30 to 40 percent of the total effort in most successful simulation projects is actually model coding. They discuss ten key steps that should, in fact, comprise a sound simulation study View full abstract»

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  • Selecting simulation software

    Publication Year: 1991, Page(s):15 - 20
    Cited by:  Papers (25)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (484 KB)

    It is noted that the selection of appropriate simulation software from the vast number of packages available is a difficult task. The author first presents a classification of simulation modeling tools. Then, a collection of features of simulation software is discussed. Next, guidance is provided for selecting a simulation modeling tool. Lastly, a technique to reduce the vast number of simulation ... View full abstract»

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  • Modeling and simulation: a Department of Defense critical technology

    Publication Year: 1991, Page(s):519 - 525
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB)

    The US Department of Defense has identified twenty technologies critical to ensuring the long-term qualitative superiority of United States weapons systems. Simulation and modeling technology, one of these twenty, was categorized as one which offered the most immediate advances in weapon systems capabilities. A linkage is drawn between twelve major long-term goals reflecting needed military capabi... View full abstract»

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  • Application of hierarchical modeling concepts to a multi-analysis environment

    Publication Year: 1991, Page(s):1165 - 1172
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (640 KB)

    An environment which enables the application of multiple analysis formalisms or paradigms to a commonly defined problem is extended to include hierarchical modeling concepts. A description of the development of the object-oriented environment is provided as background. Concepts of model development are introduced in order to emphasize the value of hierarchical modeling concepts. Implementation of ... View full abstract»

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  • Introduction to simulation

    Publication Year: 1991, Page(s):5 - 14
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (864 KB)

    An overview is given of simulation modeling and analysis from the perspective of prospective users wanting to use simulation as a decision aid. Important considerations in building simulation models and analyzing their outputs are discussed. A few examples of simulation software are given View full abstract»

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  • An assessment of the MODSIM/TWOS parallel simulation environment

    Publication Year: 1991, Page(s):509 - 518
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (896 KB)

    The authors assert that the major flaw with the ModSim/TWOS (Time Warp Operating System) system as it currently exists is that there is no compiler support for mapping a ModSim application into an efficient C/TWOS application. Moreover, the ModSim language as currently defined does not provide explicit hooks into the TWOS and hence the developer is unable to tailor a ModSim application in the same... View full abstract»

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  • A performance model for parallel simulation

    Publication Year: 1991, Page(s):618 - 626
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (692 KB)

    The authors develop a model to study the behavior of a system synchronized by a windowing protocol when conditional events are allowed into the computation stream. The model accurately predicts the probability that a typical LP in the system will make it to a given step without faulting. Using this probability an extrapolating system performance gives what is expected to be an upper bound on syste... View full abstract»

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  • Using discrete event modeling for effective computer animation control

    Publication Year: 1991, Page(s):1156 - 1164
    Cited by:  Papers (3)  |  Patents (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (588 KB)

    The authors demonstrate a method for combining discrete event modeling methods with keyframe computer animation. The focus has been to study existing methods in computer simulation that can be used to aid the graphics community in their search for better mathematical modeling approaches for complicated systems. Such systems often contain discrete as well as continuous components and multiple model... View full abstract»

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  • When is a satellite not a toaster? [satellite repair costs]

    Publication Year: 1991, Page(s):499 - 508
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (660 KB)

    It is pointed out that automobiles are typically repaired, but inexpensive appliances are discarded at the first sign of trouble: they `cost too much to fix.' Comparing $50 M satellites with toasters may seem odd, but the analogy can be appropriate. It is suggested that the too-much-to-fix argument can be used in deciding whether to replace or to repair satellites. The authors investigate when cos... View full abstract»

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  • Deadlock detection and recovery based distributed simulation: a performance study

    Publication Year: 1991, Page(s):608 - 617
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (912 KB)

    The authors present the results of an experimental performance study of distributed simulation of closed queuing networks using a minor variation of the deadlock detection and recovery based algorithm of K.M. Chandy and J. Misra (1979,1981). A major part of this study is to determine the effect of overhead on distributed simulation. Moreover, in these experiments the values of certain refined noti... View full abstract»

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  • A unified framework for visual interactive simulation

    Publication Year: 1991, Page(s):1146 - 1155
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (872 KB)

    The author outlines general requirements of visual interactive simulation (VIS) systems, to allow the development of a unified framework for VIS. He aims to encourage and facilitate dialogue between the various simulation communities, by refining the definitions of VIS and its components, and presenting them in a way which is illuminating to the researcher, instructive to the developer, and compre... View full abstract»

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  • Empirical input distributions: an alternative to standard input distributions in simulation modeling

    Publication Year: 1991, Page(s):978 - 985
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (480 KB)

    The authors investigate the effect of input-distribution specification on the validity of output from simple queuing models. In particular, the use of various kinds of empirical distributions for approximating service-time distributions is studied. It is shown that, when the approximating distributions were compared on the basis of variance and bias in their estimates, the empirical distributions ... 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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  • 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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  • Combat vehicle reliability assessment simulation model (CVRASM)

    Publication Year: 1991, Page(s):491 - 498
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (572 KB)

    A simulation model capable of analyzing manufacturers' claims of reliability has been developed. The model takes into account the manufacturers' predetermined reliability inputs and incorporates these statements into the army's current maintenance and repair system. The model portrays the disposition or status of vehicles over time. This information may be used to initialize other combat models in... View full abstract»

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  • Simultaneous parallel simulations of continuous time Markov chains at multiple parameter settings

    Publication Year: 1991, Page(s):602 - 607
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (524 KB)

    The authors describe multi-PUCS (parallel uniformized continuous-time simulation), an approach based on uniformization for simultaneously running parallel simulation of CTMCs (continuous time Markov chains) at multiple parameter settings. In multi-PUCS, interprocessor communications messages are shared among the multiple simulations. The efficiency of multi-PUCS relative to another multiple parame... View full abstract»

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  • Total capacity management using simulation

    Publication Year: 1991, Page(s):348 - 355
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (600 KB)

    Presents a discussion of how modeling and simulation can be used to support total capacity management (TCM). TCM promotes the integration of functions relating to capacity management and the sharing of information and decisions with those systems that are also involved in manufacturing system improvement. TCM is focused on the productive capability of the manufacturing system. It performs function... View full abstract»

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