Accession Number : AD0715086

Title :   Simplified Equally-Likely Removals in Simulations.

Descriptive Note : Technical rept.,

Corporate Author : SOUTHERN METHODIST UNIV DALLAS TEX DEPT OF STATISTICS

Personal Author(s) : Walsh,John E.

Report Date : 21 SEP 1970

Pagination or Media Count : 14

Abstract : Random simulation models often involve many equally-likely removals of determined numbers from identified groups of persons or objects. That is, all ways of selecting those actually removed are equally likely. The time and expense for such removals can be substantially reduced (compared to a separate equally-likely selection for each removal) by a simplified method that frequently is usable in at least part of a model. This simplified method can be applied to groups which consist of members of the same type and which, except for the initial group(s), are obtained from previous such groups by removals and/or subdivisions. For an application to members of a given type, a random ordering is assigned to the persons or objects that can be of that type (all possible orderings equally likely). This assignment is independent of all other aspects of the simulation and is used only for equally-likely removals involving the specified type. All such removals are made on the basis of this ordering. Attritions constitute an important class of removals. (Author)

Descriptors :   (*MATHEMATICAL MODELS, REMOVAL), STOCHASTIC PROCESSES, SIMULATION, QUALITY CONTROL, RELIABILITY

Subject Categories : Operations Research

Distribution Statement : APPROVED FOR PUBLIC RELEASE