Information Technology Reference
In-Depth Information
() (
)
() (
)
3
3
2
f
x
≡
0
0
067
;
0
0
137
;
f
x
≡
0
204
;
0
312
;
0
137
;
0
337
;
1
() (
)
() (
)
3
3
4
f
x
≡
0
649
;
0
745
;
0
337
;
0
170
;
f
x
≡
0
915
;
1
0
170
;
0
.
3
In § 4.4 it was underlined that from the point of view of information losses,
optimal generalized model does not generally satisfy to Pareto condition. In this
specific case while comparing
3
with models of all experts it becomes clear that
X
generalized model
3
satisfies to the Pareto condition. Information loss is equal
X
to
σ
=
0
095
while constructing the model
X
3
.
опт
σ
σ
Comparison of information losses
and
while constructing the
1
2
generalized models
and
, accordingly, has shown that
σ
=
0
106
,
1
X
2
X
1
σ
=
0
,
118
X
,
X
are equal to 0.301;
0.287; and 0.322, accordingly. Analogues of reliability index (see §2.7) of these
models are equal 0.114; 0.107 and 0.1685, accordingly.
With the results of the research carried out, the generalized model of expert
evaluations of software completeness was represented with model
X
selected,
because it is Pareto optimal one, information loss is close to optimum when it was
constructed, and values of fuzziness degree of
. Fuzziness of generalized models
X
,
1
2
2
X
and analogue of a reliability
index occupies intermediate position between values of fuzziness degrees and
analogues of reliability index for models
1
X
and
X
.
The researches carried out within the limits of the scale "incompleteness",
“partial completeness”, “complete completeness” allowed obtaining the
generalized model
2
4
X
with membership functions
() (
)
() (
)
4
4
2
f
x
≡
0
0
060
;
0
0
261
;
f
x
≡
0
321
;
0
378
;
0
261
;
0
432
;
1
() (
)
f
4
3
x
≡
0
810
;
1
0
432
;
0
.
The additive index to the general consistency of expert models is equal to 0.594,
the multiplicative index
~
is equal to 0.563, fuzziness degree of the model
κ
4
X
is
equal to 0.347.
While using the scale «complete completeness», «partial completeness», «basic
completeness», «essential completeness», «complete completeness», the
generalized model
5
X
was obtained with membership functions
() (
)
() (
)
5
5
2
f
x
≡
0
0
061
;
0
0
117
;
f
x
≡
0
178
;
0
246
;
0
117
;
0
212
;
1
() (
)
5
3
f
x
≡
0
458
;
0
645
;
0
212
;
0
172
;
() (
)
() (
)
5
5
5
4
f
x
≡
0
987
;
1
0
162
;
0
.
f
x
≡
0
817
;
0
825
;
0
172
;
0
162
;
The additive index
to the general consistency of expert models is equal to
0.604, and the multiplicative index
κ
~
is equal to 0.582, fuzziness degree of the
κ
model
X
5
is equal to 0.331.
