Information Technology Reference
In-Depth Information
As an example of the linguistic variable which is formalization of qualitative
characteristics, one can see the linguistic variable of "knowledge" shown in
Fig. 1.5.
Knowledge
"unsatisfactorily” "satisfactorily” “excellent”
Fig. 1.5
A linguistic variable - "knowledge".
A linguistic variable “RAM space” (memory size) can be considered as an
example of the linguistic variable which is formalization of quantitative
characteristics.
A linguistic variable with the fixed term-set
{
()
}
X
,
T
X
,
U
,
S
is referred to as
semantic space.
According to the fuzzy set theory, semantic spaces with a wide spectrum of
practical applications can serve as models of expert evaluations of characteristics;
these applications include development of expert and intelligence decision making
support systems, data analysis and complex process control [4. 35. 37. 47—55].
A semantic space “probability of maintaining solvency by an emitter of the
Central bank” can be considered as an example
(){
}
[]
XT
where
A
—
E
— probabilities of maintaining solvency (
A
— very low;
B
—
low;
C
— mean;
D
— high;
E
— very high).
=
A
,
B
,
C
,
D
,
E
,
U
=
0
,
