A goal directed simulation method using fuzzy cognitive mapping /

(concepts) and arcs (causal connections). The causal

Bibliographic Details
Main Author: Deines, Erich Vernon, 1968-
Format: Thesis eBook
Language:English
Published: [Place of publication not identified] : [publisher not identified] ; 1996.
Subjects:
Online Access:Link to OAKTrust copy
Description
Summary:(concepts) and arcs (causal connections). The causal
A goal directed simulation method using fuzzy cognitive
a relatively new method of collecting and standardizing
a set of important manufacturing concepts was identified and
analysis of the previous output. Fuzzy cognitive mapping is
and the EXSYS expert system shell. All simulation models
ascertain estimates of the relevant causal weights in both a
associated with traditional manufacturing studies. The FCM-
can be used for the analysis and experimental design
cognitive map is stored as a bidirectional graph of nodes
compared to a traditional response surface methodology in two
connections in a fuzzy cognitive map are fuzzy values or
decreasing the arrival rate and adding additional machines.
end to a simulation language that suggests specific changes
environment. Finally, the constructed FCM-GDS system was
establish the procedure's usefulness over a wide variety of
expert opinion about a problem domain. The information in a
GDS system was constructed using the C++ programming language
lightly congested flowline and a highly congested job shop.
manufacturing situations.
mapping (FCM-GDS) is partially developed. The FCM-GDS system
Next, a logical procedure for manipulating these causal
number of simulation runs required to reach the neighborhood
of a predetermined set of goals by 75% when compared to the
qualifiers. The research was conducted in four steps. First,
response surface method. Additional tests are required to
similar experiments. The two simulation models tested were a
software. Additional analyses were conducted using Excel
spreadsheets. A goal directed system is an intelligent back-
the directions of their causal interactions were developed.
the limited tests performed, the FCM-GDS system decreased the
The specific results of this research were favorable. Over
The suggested goals dealt with throughput, cycle time,
to variables in the model according to a knowledge-based
typical flow line environment and a typical job shop
utilization, and cost. The allowable changes involved
was formulated. Third, detailed experiments were run to
weights in the context of an experimental design framework
were constructed and analyzed using ARENA simulation
Item Description:"Major subject: Industrial Engineering".
Vita.
Physical Description:ix, 84 leaves : illustrations ; 28 cm.
Also available online.
Issued also on microfiche from Lange Micrographics.
Bibliography:Includes bibliographical references.