Information Technology Reference
In-Depth Information
Example 1.1.9
The predicate
old
, once numerically characterized by
Ch
old
=
Age
,
[
,
]
μ
old
(
)
=
μ
big
(
(
))
can be translated into the interval
0
120
, in years, by
x
Age
x
,
and a linear model for it can be
⊧
⊨
0
,
if
0
Age
(
x
)
45
x
−
45
30
μ
old
(
x
)
=
μ
big
(
Age
(
x
))
=
,
(
)
if
45
Age
x
75
⊩
(
)
.
1
if
75
Age
x
120
with graphic.
µ
old
µ
big
Age
μ
old
depends on
the values 45 and 75, as well as on the form of the curve in the sub-interval
In cases like this one, it is important to notice that the function
[
,
]
.
It can be supposed, for example, that the above function is supplied by a person
in the range of the fifties, but that one in the seventies would design
45
75
μ
old
as the
curve
with
μ
old
increasing quadratically between the 50 and the 80 years.
Search WWH ::
Custom Search