Advances in Computers

Pirmais vāks
Academic Press, 1991. gada 13. sept. - 325 lappuses
Advances in Computers

No grāmatas satura

Saturs

Chapter 2 ObjectOriented Modeling and DiscreteEvent Simulation
67
Chapter 3 HumanFactors Issues in Dialog Design
115
Chapter 4 Neurocomputing Formalisms for Computational Learning and Machine Intelligence
173
Chapter 5 Visualization in Scientific Computing
247
Author Index
307
Subject Index
317
Contents of Previous Volumes
327
Autortiesības

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76. lappuse - ... models requires that we adopt a different view than that fostered by traditional simulation languages. As with modular specification in general, we must view a model as possessing input and output ports through which all interaction with the environment is mediated. In the discrete event case, events determine values appearing on such ports. More specifically, when external events, arising outside the model, are received on its input ports, the model description must determine how it responds...
248. lappuse - Visualization embraces both image understanding and image synthesis. That is, visualization is a tool both for interpreting image data fed into a computer, and for generating images from complex multidimensional data sets. It studies those mechanisms in humans and computers which allow them in concert to perceive, use and communicate visual information.
305. lappuse - CM-5 was provided by the National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign.
70. lappuse - Simulation is the process of designing a model of a real system and conducting experiments with this model for the purpose either of understanding the behavior of the system or of evaluating various strategies (within the limits imposed by a criterion or set of criteria) for the operation of the system.
77. lappuse - ... function has elapsed. • the external transition function which specifies how the system changes state when an input is received - the effect is to place the system in a new phase and sigma thus scheduling it for a next internal transition; the next state is computed on the basis of the present state, the input port and value of the external event, and the time that has elapsed in the current state. • the output function which generates an external output just before an internal transition...
74. lappuse - In general terms a model can be considered valid if the data generated by the model agree with the data produced by the real system in an experimental frame of interest. • The simulation relation, linking model and simulator, represents how faithfully the simulator is able to carry out the instructions of the model. There is a crucial element that has been brought into this picture: the experimental frame.
72. lappuse - Discrete event systems represent certain constellations of such parameters just as continuous systems do. For example, the inputs in discrete event systems occur at arbitrarily spaced moments, while those in continuous systems are piecewise continuous functions of time. The insight provided by the DEVS formalism is in the simple way that it characterizes how discrete event simulation languages specify discrete event system parameters. Having this abstraction, it is possible to design new simulation...

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