Information Technology Reference
In-Depth Information
Approach 1.2
Step 1
Calculate
Sup
r
index
(
k
)
ij
d
r
index
(
k
)
ij
r
index
(
l
)
ij
r
index
(
l
)
ij
,
=
1
−
,
μ
+
1
2
index
(
k
)
index
(
l
)
v
index
(
k
)
ij
v
index
(
l
)
ij
=
1
−
−
μ
−
ij
ij
π
index
(
k
)
index
(
l
)
+
−
π
(1.59)
ij
ij
which indicates the support of the
l
th largest IFV
r
index
(
l
)
ij
for the
k
th largest IFV
r
index
(
k
)
ij
of
r
(
t
)
ij
.
Step 2
Calculate the support
T
r
index
(
k
)
ij
(
t
=
1
,
2
,...,
s
)
of the
k
th largest IFV
r
index
(
k
)
ij
by the
other IFVs
r
(
l
)
ij
(
l
=
1
,
2
,...,
s
, and
l
=
k
)
:
T
r
index
(
k
)
ij
Sup
r
index
(
k
)
ij
s
r
index
(
l
)
ij
=
,
(1.60)
l
=
1
l
=
k
ω
(
k
)
ij
and utilize Eq. (
1.45
) to calculate the weight
associated with the
k
th largest IFV
r
index
(
k
)
ij
, where
D
(
k
)
ij
TV
ij
D
(
k
−
1
)
ij
TV
ij
k
ω
(
k
)
ij
D
(
k
)
ij
V
index
(
l
)
ij
=
g
−
g
=
l
=
1
T
r
index
(
l
)
ij
s
V
index
(
l
)
ij
V
index
(
l
)
ij
TV
ij
=
,
=
1
+
(1.61)
l
=
1
s
, and
k
=
1
ω
(
k
)
ω
(
k
)
ij
where
≥
0
,
k
=
1
,
2
,...,
=
1.
ij
Step 3
Utilize the IFPOWA operator (
1.44
):
r
(
1
)
ij
r
(
2
)
ij
r
(
s
)
ij
IFPOWA
(
,
,...,
)
1
s
s
s
)
ω
(
k
)
)
ω
(
k
)
)
ω
(
k
)
index
(
k
)
ij
v
index
(
k
)
ij
index
(
k
)
ij
=
−
1
(
1
−
μ
,
1
(
,
1
(
1
−
μ
ij
ij
ij
k
=
k
=
k
=
s
)
ω
(
k
)
v
index
(
k
)
ij
−
1
(
(1.62)
ij
k
=
or the IFPOWG operator (
1.48
):
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