ISSN:
1572-9974
Keywords:
Knowledge-based system
;
PM system
;
production and distribution problems
;
linear programming
Source:
Springer Online Journal Archives 1860-2000
Topics:
Computer Science
,
Economics
Notes:
Abstract Software for production and distribution problems has evolved from FORTRAN programs, to matrix generators, to modeling languages such as GAMS, AMPL, and Structured Modeling. One of the next steps in the evolution of this class of software is to knowledge-based systems. Such systems provide a guided interface for problem input, permit qualitative inference about the problem, and provide a means of creating the problem description in the form required by modeling languages. This paper is written for economists and management scientists who have experience with production and distribution modeling but limited familiarity with knowledge-based systems. The paper describes the PM System which was developed by Krishnan to analyze and model linear programming production and distribution problems. The system is written in PROLOG. Elements of the Mexican steel industry model by Kendrick, Meeraus, and Alatorre are used to illustrate the interface dialog, the PM language, and the transformations which are required to translate the model into the form required by the Structured Modeling system. Illustrations are provided of the use of the system for answering queries and modifying the problem.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00435203
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