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Carroll, John M.; Laurin, Pierre G.
doi: 10.1177/003754978103600102pmid: N/A
The defining of police patrol zones is a complex problem that can be handled by computer simulation. Typical criteria for establishing zone boundaries are average response time and amount of time avail able for actual patrol duties. Typical constraints include the number of patrol cars and a desired minimum response time. In our application, the criterion was to maximize the amount of time avail able for patrol duties (i.e., repressive patrol); the constraints were the current average time to respond to a call and a limit on the number of patrol cars. We developed a multiple linear regres sion model to forecast calls and a simulator to pre dict performance. The results were reasonable and indicated that, possibly, a small increase in patrol time could be achieved by redefining zone boundaries and that the work load in the zones could be made considerably more uniform.The simulation, however, was undertaken primarily as a training exercise and did not represent the com plete problem. As a result of factors outside of the scope of the work reported here, the findings were not applied. Even so, it can be argued that the study produced benefits that justified its cost.
Hill, Robert R.; Wolf, Edwin M.
doi: 10.1177/003754978103600103pmid: N/A
Universities have not traditionally analyzed the temporal effects of the tenure decision on the university or on its faculty. The consequences of a tenure policy on the financial and academic health of a university are substantial and long-lasting. This paper describes a program that allows university administrators to build a model of any proposed tenure policy, to operate the model, and to project the effects of the policy on the university. The models formulated use Markov chains to represent the various policies being analyzed along with macro forecasts of the size and composition of the university.
Nagata, Wesley M.; Miller, Donald S.
doi: 10.1177/003754978103600104pmid: N/A
The KIM-1 simulator is a development tool for the MOS Technology 6502 microprocessor and the KIM-1 microcomputer. It is written in the C programming language and runs under the UNIX operating system on a DEC PDP-11/60. The input to the simulator is ob ject code produced by a cross-assembler. The simu lator helps in debugging 6502 programs by providing the user with the ability to interactively load and display memory and registers, dynamically set and clear breakpoints, handle interrupts, and trace pro gram execution.The simulator is user-oriented; it supplies prompts, English diagnostics, and instructions on usage. Its execution speed and core requirements allow truly interactive debugging.The KIM-1 simulator, in conjunction with the cross- assembler and the actual KIM-1 microcomputers, has been an excellent educational tool for an introduc tory course in computer organization and assembly- language programming. In addition, it has helped researchers using the 6502 microprocessor in appli cations.
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