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9
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ity
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s
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C
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A
uth
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:
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Hasan
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Ad
v
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p
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,
Un
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ity
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8
4
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aleh
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g
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co
m
1.
I
NT
RO
D
UCT
I
O
N
W
eb
s
ite
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s
th
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ess
en
tial
in
ter
a
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etwe
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iz
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d
its
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er
s
in
to
d
ay
'
s
d
ig
ital
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a.
Hav
in
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web
s
ite
allo
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o
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g
an
izatio
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s
to
attr
ac
t
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s
wo
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ld
wid
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ain
a
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m
p
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ed
g
e
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s
[
1
]
-
[
3
]
.
I
n
s
titu
tio
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th
at
h
av
e
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b
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lev
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f
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tag
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[
4
]
.
W
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h
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in
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v
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an
d
m
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s
)
[
5
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-
[
7
]
.
Un
iv
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s
ities
p
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t
en
o
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m
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u
s
ef
f
o
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t
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ite
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wif
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with
o
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t c
o
m
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g
to
th
e
in
s
titu
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n
s
[
8
]
-
[
1
3
]
.
T
h
e
q
u
ality
o
f
th
e
u
n
iv
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s
ity
'
s
web
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ite
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lects
th
e
q
u
ality
o
f
u
n
iv
e
r
s
ities
ac
ti
v
ities
[
1
4
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.
Am
o
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in
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o
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av
ailab
le
o
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n
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web
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clu
d
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ac
ad
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p
r
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g
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a
m
s
,
f
ac
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in
f
r
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ac
tiv
ities
,
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f
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p
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tatio
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s
with
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ar
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s
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ality
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t
[
1
5
]
.
Hen
ce
,
q
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ality
web
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ca
n
at
tr
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t m
o
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e
u
s
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s
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d
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cr
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.
Gen
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ally
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ter
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q
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tatio
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o
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m
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[
1
6
]
.
Q
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ality
is
d
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by
I
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ter
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l
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J
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&
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Vo
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25
,
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1
,
J
an
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20
22
:
511
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W
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b
s
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q
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b
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[
1
9
]
.
T
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ter
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web
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e
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ts
[
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]
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s
tan
d
ar
d
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f
web
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[
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1
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v
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o
f
a
u
n
iv
e
r
s
ity
[
2
2
]
.
So
,
it
is
im
p
er
ativ
e
to
s
tu
d
y
f
u
r
th
er
o
n
u
n
iv
er
s
ity
w
eb
s
ite
q
u
ality
.
Sectio
n
1
p
r
o
v
i
d
es
an
in
tr
o
d
u
ctio
n
of
th
e
p
r
o
ject.
Sectio
n
2
o
u
tlin
es
th
e
r
esear
ch
m
eth
o
d
.
Sectio
n
3
d
is
cu
s
s
es
th
e
r
esu
lts
an
d
f
in
ally
,
s
e
ctio
n
4
r
ep
o
r
ts
th
e
co
n
clu
s
io
n
an
d
f
u
tu
r
e
wo
r
k
s
.
2.
RE
S
E
ARCH
M
E
T
H
O
D
Sy
s
tem
atic
liter
atu
r
e
r
ev
iews
(
SLR)
is
a
co
m
m
o
n
to
o
l
to
s
y
n
th
esize
th
e
p
r
ev
ailin
g
b
o
d
y
of
liter
atu
r
e
in
a
s
p
ec
if
ic
f
ield
[
2
3
]
,
[
2
4
]
.
Fo
r
th
is
s
tu
d
y
,
th
e
SLR
m
eth
o
d
was
u
tili
ze
d
to
id
en
tify
an
d
s
y
n
th
esize
r
elate
d
s
ch
o
lar
ly
r
esear
ch
p
ap
er
s
[
2
5
]
.
SLR
is
d
ef
in
ed
as
a
m
eth
o
d
f
o
r
id
e
n
tify
in
g
,
ev
alu
atin
g
,
an
d
s
y
n
th
esis
in
g
th
e
ex
is
tin
g
b
o
d
y
o
f
co
m
p
leted
an
d
r
ec
o
r
d
ed
wo
r
k
cr
ea
ted
b
y
r
esear
ch
er
s
,
s
ch
o
la
r
s
,
an
d
p
r
a
ctitio
n
er
s
th
at
is
s
y
s
tem
atic,
ex
p
licit,
an
d
r
ep
r
o
d
u
cib
le
.
C
o
n
tr
ar
y
to
th
e
u
s
e
o
f
u
n
s
tr
u
ctu
r
ed
m
eth
o
d
s
s
u
ch
as
s
im
p
le
l
iter
atu
r
e
r
e
v
i
e
w
s
t
h
a
t
h
a
v
e
a
p
o
t
e
n
t
ia
l
t
o
b
e
b
i
a
s
e
d
,
S
L
R
r
es
u
l
ts
a
r
e
m
o
r
e
r
e
l
i
a
b
l
e
a
n
d
t
e
n
d
t
o
b
e
u
n
b
i
as
e
d
[
2
6
]
,
[
2
7
]
.
S
L
R
c
o
m
p
r
i
s
e
s
o
f
t
h
r
ee
p
h
a
s
es
:
r
e
v
ie
w
p
l
a
n
n
i
n
g
,
r
e
v
i
e
w
c
o
n
d
u
c
ti
o
n
,
a
n
d
r
e
s
u
l
t
r
e
p
o
r
t
i
n
g
[
2
5
]
a
s
s
h
o
w
n
i
n
F
i
g
u
r
e
1
.
Fig
u
r
e
1
.
T
h
e
s
y
s
tem
atic
liter
atu
r
e
r
ev
iew
(
SLR)
m
eth
o
d
[
1
5
]
2
.
1
.
Rev
iew
p
la
nn
ing
T
h
e
m
o
s
t
im
p
o
r
tan
t
ac
tiv
itie
s
d
u
r
in
g
t
h
e
r
ev
iew
p
lan
n
in
g
p
h
ase
ar
e
d
ef
in
itio
n
o
f
t
h
e
r
esear
ch
q
u
esti
o
n
s
f
o
r
th
is
SLR
an
d
cr
ea
tio
n
o
f
th
e
r
ev
iew
p
r
o
to
co
l.
H
o
wev
er
,
all
o
th
e
r
ac
tiv
ities
s
h
o
u
ld
n
o
t
b
e
n
eg
lecte
d
an
d
s
h
o
u
l
d
b
e
tak
e
n
s
er
io
u
s
ly
.
T
h
e
r
esu
lts
o
f
th
is
p
h
ase
s
h
o
u
ld
in
clu
d
e
a
clea
r
ly
d
ef
in
ed
r
e
v
iew
p
r
o
to
co
l c
o
n
tain
in
g
th
e
p
u
r
p
o
s
e
an
d
th
e
p
r
o
ce
d
u
r
es o
f
th
e
r
e
v
iew
.
2
.
1
.
1
.
Resea
rc
h ques
t
io
ns
T
h
e
f
ir
s
t
s
tep
in
th
e
SLR
is
to
d
eter
m
in
e
its
f
o
cu
s
b
y
clea
r
l
y
f
r
am
e
th
e
q
u
esti
o
n
s
th
e
r
ev
ie
w
s
ee
k
s
to
an
s
wer
.
T
h
e
q
u
esti
o
n
s
wer
e
m
ad
e
b
y
f
o
llo
win
g
PICO
t
ab
le.
PICO
s
tan
d
s
f
o
r
p
o
p
u
latio
n
,
in
ter
v
e
n
tio
n
,
co
m
p
ar
is
o
n
,
an
d
o
u
tco
m
es
[
1
7
]
T
h
e
f
o
r
m
u
la
o
f
ea
ch
item
in
PICO a
r
e
illu
s
tr
ated
I
n
T
ab
le
1
.
T
ab
le
1
.
PICO
s
u
m
m
ar
y
P
I
C
O
F
o
r
mu
l
a
P
o
p
u
l
a
t
i
o
n
U
n
i
v
e
r
si
t
y
w
e
b
si
t
e
s
I
n
t
e
r
v
e
n
t
i
o
n
U
n
i
v
e
r
si
t
y
w
e
b
si
t
e
q
u
a
l
i
t
y
,
e
v
a
l
u
a
t
i
o
n
f
a
c
t
o
r
s,
b
a
se
mo
d
e
l
C
o
m
p
a
r
i
so
n
N
/
A
R
e
s
u
l
t
Th
e
f
a
c
t
o
r
s
a
n
d
i
n
d
i
c
a
t
o
r
s
t
o
me
a
su
r
e
t
h
e
q
u
a
l
i
t
y
o
f
u
n
i
v
e
r
si
t
y
w
e
b
s
i
t
e
,
b
a
se
d
m
o
d
e
l
,
e
v
a
l
u
a
t
i
o
n
p
r
o
b
l
e
m
s
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
d
o
n
esian
J
E
lec
E
n
g
&
C
o
m
p
Sci
I
SS
N:
2502
-
4
7
5
2
S
ystema
tic
liter
a
tu
r
e
r
ev
ie
w
o
n
u
n
ivers
ity
w
eb
s
ite
q
u
a
lity
(
A
la
’
Ha
s
a
n
S
a
leh
)
513
T
h
is
SLR
s
ee
k
s
to
id
en
tify
an
s
wer
s
to
th
e
f
o
llo
win
g
r
esear
ch
q
u
esti
o
n
s
:
R
Q1
:
W
h
at
a
r
e
t
h
e
p
r
o
b
le
m
s
f
o
r
e
v
al
u
at
in
g
t
h
e
q
u
alit
y
o
f
u
n
i
v
e
r
s
it
ies'
w
eb
s
ites
?
R
Q2
:
W
h
at
a
r
e
t
h
e
m
o
d
el
s
u
s
e
d
to
e
v
al
u
at
e
t
h
e
q
u
al
it
y
o
f
u
n
i
v
e
r
s
it
ies'
w
eb
s
ites
?
R
Q3
:
W
h
at
a
r
e
t
h
e
f
ac
t
o
r
s
an
d
i
n
d
ica
to
r
s
b
ei
n
g
u
s
e
d
t
o
ev
al
u
ate
t
h
e
q
u
alit
y
o
f
a
ca
d
e
m
ic
w
e
b
s
it
es?
2
.
1
.
2
.
I
dentif
y
ing
t
he
k
ey
t
er
m
s
Ba
s
ed
o
n
th
e
r
esear
ch
q
u
esti
o
n
s
m
en
tio
n
ed
a
b
o
v
e
,
th
e
k
ey
p
h
r
ase
was
"u
n
iv
er
s
ities
web
s
ite
q
u
ality
ev
alu
atio
n
.
"
T
h
e
n
,
th
e
s
y
n
o
n
y
m
s
o
f
th
e
k
ey
wo
r
d
‘
e
v
alu
at
io
n
’
wer
e
id
en
tifie
d
wh
ic
h
ar
e
‘
ass
es
s
m
en
t
’
an
d
‘
m
ea
s
u
r
em
en
t
’
.
T
h
e
s
ea
r
ch
s
tr
in
g
was
f
o
r
m
u
lated
b
ased
o
n
t
h
e
m
ain
ter
m
s
an
d
th
eir
s
y
n
o
n
y
m
s
,
an
d
B
o
o
lea
n
as
s
h
o
wn
:
ev
alu
atio
n
o
r
ass
ess
m
en
t
o
r
m
ea
s
u
r
em
en
t
)
a
n
d
we
b
s
ite
an
d
q
u
ality
an
d
(
U
n
iv
er
s
ity
o
r
ac
ad
em
ic
o
r
ed
u
ca
tio
n
)
.
T
h
e
s
ea
r
ch
k
ey
wo
r
d
s
ar
e
u
s
ed
to
f
in
d
r
elev
an
t st
u
d
ies in
th
e
p
a
p
er
’
s
titl
e,
k
ey
w
o
r
d
s
an
d
a
b
s
tr
ac
t.
2
.
1
.
3
.
I
dentif
y
ing
t
he
s
o
urce
s
Fiv
e
d
atab
ases
wer
e
s
elec
ted
f
o
r
th
is
SLR
wh
ich
in
cl
u
d
e
I
n
s
titu
te
o
f
E
lectr
ical
an
d
E
lectr
o
n
ics
E
n
g
in
ee
r
s
(
I
E
E
E
)
,
Sp
r
in
g
er
L
in
k
,
Scien
ce
Dir
ec
t,
E
m
er
al
d
,
an
d
Sco
p
u
s
.
T
h
ese
d
atab
as
es
wer
e
s
elec
ted
as
th
ey
d
is
p
en
s
e
th
e
m
o
s
t
im
p
o
r
tan
t
an
d
th
e
h
ig
h
est
im
p
ac
t
f
u
ll
-
tex
t
jo
u
r
n
als
an
d
co
n
f
e
r
en
ce
p
r
o
ce
e
d
in
g
s
,
r
elate
d
to
u
n
iv
er
s
ity
web
s
ite
q
u
ality
.
T
h
is
SLR
f
o
cu
s
es
o
n
s
ea
r
ch
in
g
f
o
r
s
cien
tific
d
atab
ases
in
s
t
ea
d
o
f
s
p
ec
if
ic
b
o
o
k
s
o
r
tech
n
ical
r
e
p
o
r
ts
,
as
it
a
s
s
u
m
es
th
at
th
e
m
ajo
r
r
esear
ch
r
esu
lts
in
b
o
o
k
s
an
d
r
ep
o
r
ts
ar
e
also
u
s
u
ally
d
escr
ib
ed
o
r
r
e
f
er
en
ce
d
in
s
cien
tific
p
ap
er
s
.
2
.
1
.
4
.
I
dentif
y
ing
t
he
inclu
s
i
o
n/ ex
clus
io
n c
rit
er
ia
T
o
m
ak
e
ce
r
tain
th
at
o
n
ly
r
el
ev
an
t
liter
atu
r
e
is
ac
ce
p
ted
in
to
th
e
SLR
,
t
h
e
in
clu
s
io
n
an
d
ex
clu
s
io
n
cr
iter
ia
is
u
s
ed
.
Fo
r
t
h
e
e
x
clu
s
io
n
cr
iter
ia:
p
ap
e
r
s
n
o
t
in
th
e
E
n
g
lis
h
lan
g
u
ag
e;
o
n
ly
t
h
e
ab
s
tr
ac
t
b
u
t
th
e
f
u
ll
tex
t
is
n
o
t
av
ailab
le;
d
o
es
n
o
t
h
av
e
f
ac
to
r
s
o
r
c
h
ar
ac
ter
is
tics
.
W
h
ile
f
o
r
th
e
i
n
cl
u
s
io
n
cr
iter
i
a:
f
u
ll
-
tex
t
p
a
p
er
s
;
r
ev
iew
p
ap
er
s
,
a
n
d
wh
ite
p
a
p
e
r
s
p
u
b
lis
h
ed
f
r
o
m
2
0
1
0
to
th
e
y
ea
r
2
0
2
0
[
2
8
]
.
2
.
1
.
5
.
I
dentif
y
ing
t
he
da
t
a
ex
t
ra
ct
io
n str
a
t
e
g
y
Data
ex
tr
ac
tio
n
is
th
e
p
r
o
c
ess
o
f
ca
p
tu
r
in
g
k
e
y
ch
ar
a
cter
is
tics
o
f
s
tu
d
ies
in
s
tr
u
ctu
r
ed
an
d
s
tan
d
ar
d
ized
f
o
r
m
b
ased
o
n
in
f
o
r
m
atio
n
in
jo
u
r
n
al
ar
ticles.
T
h
e
o
b
jectiv
e
o
f
th
is
s
tep
is
to
d
esig
n
d
ata
ex
tr
ac
tio
n
f
o
r
m
s
to
ac
c
u
r
ately
r
ec
o
r
d
t
h
e
r
esear
ch
’
s
in
f
o
r
m
atio
n
th
at
ar
e
o
b
tain
e
d
f
r
o
m
t
h
e
s
elec
ted
p
ap
er
s
.
Af
ter
im
p
lem
en
tin
g
th
e
in
clu
s
io
n
/
ex
clu
s
io
n
cr
iter
ia
as
il
lu
s
tr
ated
in
th
e
p
r
ev
io
u
s
s
tep
,
i
n
f
o
r
m
atio
n
s
u
ch
as
citatio
n
,
th
e
co
n
tex
t
o
f
th
e
s
tu
d
y
,
b
ase
m
o
d
el,
a
n
d
th
e
q
u
alit
y
f
ac
to
r
s
ar
e
e
x
tr
ac
ted
f
r
o
m
th
e
s
elec
ted
p
ap
er
s
in
o
r
d
er
t
o
an
s
wer
th
e
r
esear
c
h
q
u
esti
o
n
s
.
2
.
2
.
Rev
iew
Co
nd
uct
ing
2
.
2
.
1
.
I
dentif
ica
t
io
n o
f
re
s
ea
r
ch
T
h
e
s
ea
r
ch
p
r
o
ce
s
s
was
s
ep
ar
ated
in
to
two
s
tag
es
wh
ich
in
clu
d
e
p
r
im
ar
y
an
d
s
ec
o
n
d
ar
y
s
ea
r
ch
.
I
n
p
r
im
ar
y
s
ea
r
ch
,
th
e
p
ap
e
r
s
wer
e
id
en
tifie
d
in
th
e
s
elec
ted
d
a
tab
ases
u
s
in
g
th
e
s
ea
r
ch
s
tr
in
g
.
I
n
th
e
s
ec
o
n
d
ar
y
s
ea
r
ch
,
th
e
s
elec
ted
p
r
im
ar
y
s
tu
d
ies
'
r
ef
er
en
ce
s
we
r
e
r
e
v
ie
wed
to
d
eter
m
in
e
an
y
a
d
d
itio
n
al
r
elate
d
s
tu
d
ies.
T
h
is
p
r
o
ce
s
s
aim
s
to
en
s
u
r
e
t
h
at
th
e
p
r
im
a
r
y
s
ea
r
ch
p
h
ase
h
as
n
o
t
m
is
s
ed
an
y
r
elev
an
t
liter
atu
r
e.
T
ab
le
2
illu
s
tr
ates
th
e
r
e
s
u
lts
o
f
th
e
p
r
im
ar
y
s
tu
d
ies
s
ea
r
ch
.
Af
ter
p
ass
in
g
th
e
p
r
im
ar
y
s
tu
d
y
s
ea
r
ch
th
r
o
u
g
h
f
iv
e
d
atab
ases
,
5
1
9
p
ap
er
s
wer
e
s
elec
ted
.
I
n
th
e
s
ec
o
n
d
ar
y
s
t
ag
e,
a
b
ac
k
war
d
s
ea
r
ch
was
co
n
d
u
cted
f
o
r
th
e
s
elec
ted
p
ap
er
s
o
f
th
e
p
r
im
ar
y
s
tu
d
ies.
T
ab
le
2
.
Prim
ar
y
s
ea
r
ch
r
esu
lt
s
D
a
t
a
b
a
s
e
s
N
u
mb
e
r
o
f
p
a
p
e
r
s
D
a
t
a
b
a
s
e
s
N
u
mb
e
r
o
f
p
a
p
e
r
s
Emera
l
d
12
S
p
r
i
n
g
e
r
2
5
8
I
EEE
24
S
c
o
p
u
s
1
5
1
S
c
i
e
n
c
e
D
i
r
e
c
t
74
To
t
a
l
5
1
9
2
.
2
.
2
.
Select
io
n o
f
t
he
s
t
ud
ies
T
h
is
s
tep
n
ar
r
o
ws
d
o
wn
th
e
n
u
m
b
er
o
f
d
o
c
u
m
en
ts
f
o
u
n
d
in
th
e
p
r
ev
io
u
s
s
ea
r
ch
in
g
p
h
ase.
T
o
b
eg
in
with
,
elig
ib
ilit
y
cr
iter
ia
was
ap
p
lied
to
d
eter
m
in
e
wh
ich
o
f
th
e
s
tu
d
ies
id
e
n
tifie
d
in
s
ea
r
ch
es
ar
e
p
er
tin
en
t
b
ased
o
n
th
e
p
ap
er
title
wh
ile
all
ir
r
elev
an
t
p
ap
er
s
wer
e
d
is
ca
r
d
ed
.
T
h
e
d
is
ca
r
d
m
e
n
t
was
co
n
d
u
cted
by
ap
p
ly
in
g
f
ilter
s
r
elate
d
to
th
e
u
n
i
v
er
s
ity
'
s
web
s
ite
q
u
ality
.
Fu
r
th
er
m
o
r
e,
th
e
ab
s
tr
ac
t
o
f
th
e
f
ilter
ed
p
a
p
er
was
ass
es
s
ed
f
o
llo
wed
b
y
th
e
in
tr
o
d
u
ctio
n
an
d
th
e
co
n
cl
u
s
io
n
/d
is
cu
s
s
io
n
o
f
th
e
f
ilter
ed
p
a
p
er
s
.
T
h
is
s
tep
co
n
s
is
ted
o
f
a
m
o
r
e
th
o
r
o
u
g
h
s
elec
tio
n
o
f
th
e
d
o
c
u
m
en
ts
.
Af
ter
ad
m
in
is
ter
i
n
g
th
e
f
ir
s
t le
v
el
o
f
e
lig
ib
ilit
y
cr
iter
ia,
1
3
p
r
im
ar
y
s
tu
d
ies
ass
o
ciate
d
w
ith
u
n
iv
er
s
ity
web
s
ite
q
u
ality
wer
e
r
etr
iev
e
d
.
Usi
n
g
th
ese
13
s
tu
d
ies,
a
s
ec
o
n
d
ar
y
s
ea
r
ch
was
ca
r
r
ied
o
u
t
,
wh
ich
in
v
o
lv
ed
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
5
0
2
-
4
7
5
2
I
n
d
o
n
esian
J
E
lec
E
n
g
&
C
o
m
p
Sci
,
Vo
l.
25
,
No
.
1
,
J
an
u
ar
y
20
22
:
511
-
5
2
0
514
r
ev
iewin
g
th
e
r
ef
e
r
en
ce
s
in
th
e
s
elec
ted
p
r
im
ar
y
s
tu
d
ies
to
id
en
tify
r
elev
a
n
t
s
u
p
p
lem
en
tal
s
tu
d
ies.
Fro
m
th
is
s
ec
o
n
d
ar
y
s
ea
r
ch
p
h
ase,
17
s
t
u
d
ies
wer
e
c
o
llected
f
r
o
m
t
h
e
r
ef
er
en
ce
s
o
f
p
r
im
ar
y
s
ea
r
ch
.
T
h
e
f
in
al
n
u
m
b
er
o
f
s
elec
ted
s
tu
d
ies
was
3
0
s
tu
d
i
es.
3
0
s
tu
d
ies
wen
t
th
r
o
u
g
h
th
e
s
ec
o
n
d
lev
el
o
f
in
clu
s
io
n
/ex
clu
s
io
n
cr
iter
ia
wh
er
e
2
8
s
tu
d
ies
wer
e
in
cl
u
d
e
d
an
d
two
s
tu
d
ies
wer
e
ex
clu
d
ed
d
u
e
t
o
d
u
p
licatio
n
.
2
.
2
.
3
.
Study
qu
a
lity
a
s
s
ess
m
ent
T
h
is
s
tep
in
v
o
lv
es
ass
ess
in
g
th
e
q
u
ality
o
f
th
e
s
elec
ted
s
tu
d
ies
in
o
r
d
er
to
s
u
p
p
o
r
t
th
e
ex
t
r
ac
tio
n
o
f
th
e
in
f
o
r
m
atio
n
f
o
r
s
y
n
th
esis
an
d
r
esu
lt
f
r
o
m
an
aly
s
is
.
A
q
u
ality
ass
ess
m
en
t
ch
ec
k
lis
t
was
ad
ap
ted
f
r
o
m
[
2
5
]
.
T
ab
le
3
p
r
esen
ts
th
e
c
h
ec
k
lis
t
th
at
was
e
m
p
lo
y
e
d
f
o
r
ass
ess
in
g
th
e
p
a
p
er
q
u
ality
.
Fo
r
th
e
q
u
ali
ty
ass
ess
m
en
t,
th
e
f
o
llo
win
g
s
ca
le
was
u
s
ed
:
Yes=1
,
Par
tially
0
.
5
,
an
d
No
=
0
[
2
9
]
,
it
was
co
n
clu
d
ed
t
h
at
t
h
e
h
ig
h
er
th
e
s
tu
d
y
s
co
r
e,
th
e
g
r
ea
ter
th
e
q
u
ality
o
f
th
e
s
tu
d
y
wh
ich
is
co
n
cu
r
r
en
t
with
its
ab
ili
ty
to
ad
d
r
ess
th
e
r
esear
ch
q
u
esti
o
n
in
a
b
etter
way
.
T
ab
le
3
.
Stu
d
y
q
u
ality
ass
ess
m
en
t c
h
ec
k
lis
t [
1
3
]
N
o
.
Q
u
e
st
i
o
n
A
n
sw
e
r
QA1
A
r
e
t
h
e
a
i
ms
c
l
e
a
r
l
y
st
a
t
e
d
?
Y
e
s/
N
o
/
P
a
r
t
i
a
l
l
y
QA2
A
r
e
t
h
e
m
e
t
h
o
d
s
u
s
e
d
i
n
e
a
c
h
p
a
p
e
r
c
l
e
a
r
l
y
d
e
s
c
r
i
b
e
d
?
Y
e
s/
N
o
/
P
a
r
t
i
a
l
l
y
QA3
D
o
t
h
e
o
b
j
e
c
t
i
v
e
s
l
e
a
d
t
o
c
o
n
c
l
u
si
o
n
s
?
Y
e
s/
N
o
/
P
a
r
t
i
a
l
l
y
QA4
I
s t
h
e
k
n
o
w
l
e
d
g
e
o
r
u
n
d
e
r
st
a
n
d
i
n
g
b
e
e
n
e
x
t
e
n
d
e
d
b
y
t
h
e
r
e
se
a
r
c
h
?
Y
e
s/
N
o
/
P
a
r
t
i
a
l
l
y
QA5
I
s t
h
e
d
i
v
e
r
s
i
t
y
o
f
p
e
r
sp
e
c
t
i
v
e
a
n
d
c
o
n
t
e
x
t
b
e
e
n
e
x
p
l
o
r
e
d
?
Y
e
s/
N
o
/
P
a
r
t
i
a
l
l
y
QA6
A
r
e
t
h
e
l
i
n
k
s
b
e
t
w
e
e
n
d
a
t
a
,
i
n
t
e
r
p
r
e
t
a
t
i
o
n
,
a
n
d
c
o
n
c
l
u
si
o
n
s a
r
e
c
l
e
a
r
?
Y
e
s/
N
o
/
P
a
r
t
i
a
l
l
y
QA7
D
o
e
s
t
h
e
d
e
t
a
i
l
/
d
e
p
t
h
/
c
o
mp
l
e
x
i
t
y
o
f
t
h
e
d
a
t
a
i
s c
o
n
v
e
y
e
d
?
Y
e
s/
N
o
/
P
a
r
t
i
a
l
l
y
I
n
th
e
n
ex
t
s
tep
,
th
e
to
tal
s
co
r
es
f
o
r
ea
ch
ar
ticle
wer
e
ca
lcu
l
ated
an
d
th
e
p
er
ce
n
tag
e
was
d
eter
m
in
ed
b
y
d
iv
id
i
n
g
th
e
to
tal
s
co
r
e
b
y
s
ev
en
.
A
p
ap
er
with
th
e
to
tal
s
co
r
e
g
r
ea
ter
t
h
an
f
iv
e
o
r
7
0
%
will
b
e
s
elec
ted
f
o
r
th
e
f
in
al
s
tu
d
y
.
Fro
m
th
e
p
r
ev
i
o
u
s
2
8
p
ap
er
s
,
f
o
u
r
p
ap
er
s
we
r
e
r
ejec
ted
wh
er
e
th
r
ee
p
ap
er
s
s
co
r
ed
4
.
0
o
r
5
7
%
an
d
o
n
e
s
co
r
e
d
3
.
5
o
r
5
0
%.
So
,
th
er
e
ar
e
2
4
f
i
n
al
s
tu
d
ies s
ele
cted
f
r
o
m
th
is
SLR p
r
o
ce
s
s
.
T
h
e
r
esu
lt
o
f
q
u
ality
as
s
es
s
m
en
t
f
o
r
th
e
f
in
al
s
elec
t
ed
s
tu
d
ies
is
illu
s
tr
ated
in
T
a
b
le
4
.
Fig
u
r
e
2
s
h
o
ws
th
e
o
v
e
r
all
p
r
o
ce
s
s
o
f
t
h
is
SLR p
r
o
ce
s
s
an
d
th
e
r
esu
lts
f
o
r
ea
ch
s
tep
s
.
T
ab
le
4.
R
esu
lt o
f
q
u
ality
ass
ess
m
en
t
f
o
r
f
in
al
s
tu
d
ies
C
i
t
a
t
i
o
n
s
QA1
QA2
QA3
QA4
Q5
QA6
QA7
To
t
a
l
%
[
8
]
1
1
1
1
1
0
.
5
1
6
.
5
93
[
1
1
]
1
1
1
1
1
1
1
7
1
0
0
[
3
0
]
1
1
1
1
1
0
.
5
0
.
5
6
86
[
3
1
]
1
1
1
1
1
1
1
7
1
0
0
[
3
2
]
1
1
1
1
1
1
1
7
1
0
0
[
3
3
]
1
1
1
1
1
1
0
.
5
6
.
5
93
[
3
4
]
1
1
1
1
1
1
1
7
1
0
0
[
3
5
]
0
.
5
1
0
.
5
1
1
0
.
5
0
.
5
5
71
[
3
6
]
1
1
1
1
1
1
1
7
1
0
0
[
3
7
]
1
1
1
1
0
0
.
5
0
.
5
5
71
[
3
8
]
1
0
.
5
1
1
1
0
.
5
0
.
5
5
.
5
79
[
3
9
]
1
0
.
5
1
0
.
5
1
0
.
5
1
5
.
5
79
[
4
0
]
1
1
1
0
.
5
1
0
.
5
1
6
86
[
4
1
]
1
1
1
1
1
1
1
7
1
0
0
[
4
2
]
1
0
.
5
1
1
1
0
.
5
0
.
5
5
.
5
79
[
4
3
]
1
1
1
1
1
1
1
7
1
0
0
[
4
4
]
1
1
1
0
.
5
1
0
.
5
1
6
86
[
4
5
]
1
1
1
0
.
5
1
0
.
5
1
6
86
[
4
6
]
1
1
1
1
1
1
1
7
1
0
0
[
4
7
]
1
1
1
1
1
1
1
7
1
0
0
[
4
8
]
1
1
1
1
1
1
1
7
1
0
0
[
4
9
]
1
0
.
5
1
1
1
0
.
5
0
.
5
5
.
5
79
[
5
0
]
1
1
1
1
0
.
5
1
0
.
5
6
86
[
5
1
]
1
1
1
1
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2
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2
.
5
.
Da
t
a
s
y
nthesis
T
h
e
q
u
ality
f
ac
t
o
r
s
wer
e
id
en
tifie
d
f
r
o
m
th
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2
4
r
elev
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t
r
e
s
ea
r
ch
b
ased
o
n
u
s
er
p
er
s
p
ec
t
iv
es
.
Data
co
d
in
g
tec
h
n
iq
u
e
was
u
s
ed
to
lab
el
an
d
o
r
g
an
ize
t
h
e
f
ac
to
r
s
in
to
th
em
es.
Fro
m
2
4
s
tu
d
ies,
7
9
q
u
ality
f
ac
to
r
s
wer
e
ex
tr
ac
ted
.
B
ased
o
n
t
h
e
s
im
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ities
an
d
d
if
f
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f
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a
co
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s
tan
t
co
m
p
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was
p
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f
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r
m
ed
.
T
o
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n
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th
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s
im
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,
f
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ased
o
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ex
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th
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d
u
p
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u
s
in
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th
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s
am
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Fo
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co
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f
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r
‘
Usab
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’
th
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ap
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.
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d
if
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at
h
as th
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s
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m
ea
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in
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.
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le,
‘
in
f
o
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m
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n
q
u
ality
’
an
d
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co
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ten
t
q
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’
h
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t
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e
s
am
e
m
ea
n
in
g
.
Af
ter
r
e
m
o
v
in
g
d
u
p
licatio
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s
an
d
ap
p
ly
in
g
m
em
o
in
g
tech
n
i
q
u
e,
s
ix
q
u
ality
f
ac
to
r
s
wer
e
g
en
er
ated
as in
T
ab
l
e
6
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
5
0
2
-
4
7
5
2
I
n
d
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n
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J
E
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E
n
g
&
C
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m
p
Sci
,
Vo
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25
,
No
.
1
,
J
an
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20
22
:
511
-
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0
516
T
ab
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6.
T
h
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lis
t
of
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n
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r
s
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web
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s
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f
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N
o
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,
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7
3.
RE
SU
L
T
S AN
D
D
I
SCU
SS
I
O
N
I
n
t
h
i
s
s
ec
t
i
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n
,
w
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ta
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k
a
b
o
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h
o
w
t
h
i
s
w
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k
ca
n
b
e
h
e
l
p
f
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f
o
r
r
e
s
e
a
r
c
h
c
o
m
m
u
n
i
t
i
es
.
T
h
is
w
o
r
k
al
s
o
l
e
a
d
s
t
o
s
o
m
e
p
o
s
s
i
b
l
e
f
u
t
u
r
e
wo
r
k
a
r
e
a
s
.
T
h
i
s
r
es
e
a
r
c
h
w
a
s
c
o
n
d
u
c
t
e
d
t
o
a
n
s
w
e
r
t
h
r
ee
m
a
i
n
r
e
s
e
a
r
c
h
q
u
e
s
t
i
o
n
s
:
3
.
1
.
T
o
inv
estig
a
t
e
t
he
is
s
ues
o
f
ev
a
lua
t
ing
t
he
qu
a
lity
o
f
un
iv
er
s
it
ies
' w
ebs
it
es
T
ab
le
7
p
r
esen
ts
th
e
is
s
u
es
o
f
ev
alu
atin
g
u
n
iv
er
s
ities
’
web
s
ites
q
u
ality
.
T
h
e
f
in
d
in
g
s
in
d
icate
th
at
th
er
e
is
s
till
a
lack
o
f
s
tu
d
y
o
n
u
n
iv
er
s
ity
web
s
ites
q
u
ality
co
m
p
ar
ed
to
b
u
s
in
ess
web
s
ites
[
3
3
]
,
[
3
4
]
.
Fr
o
m
th
e
d
ev
elo
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er
s
asp
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ts
,
s
o
m
e
o
f
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ap
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f
ec
t
th
e
q
u
ality
o
f
th
e
web
s
ites
.
T
h
e
m
o
s
t
co
m
m
o
n
is
s
u
e
is
r
elate
d
to
web
s
ite
ev
alu
atio
n
asp
ec
ts
s
in
ce
w
eb
s
ite
q
u
ality
e
v
alu
atio
n
is
co
m
p
lex
a
n
d
m
u
ltid
im
en
s
io
n
al
an
d
th
er
e
is
n
o
s
p
ec
if
ic
ev
alu
atio
n
m
o
d
el
f
o
r
u
n
iv
er
s
ity
web
s
ites
.
T
h
e
ev
alu
atio
n
o
f
u
n
iv
er
s
ities
'
web
s
ite
s
d
if
f
er
s
f
r
o
m
o
th
e
r
web
s
ites
,
in
ter
m
s
o
f
s
tr
u
c
tu
r
e
an
d
c
o
n
ten
t.
B
esid
es,
th
e
f
ac
to
r
o
f
p
r
io
r
ities
an
d
weig
h
ts
d
ep
en
d
o
n
t
h
e
web
s
ite
ty
p
e
[
1
1
]
,
[
1
2
]
,
[
5
2
]
-
[
5
4
]
.
Fo
r
e
x
am
p
le,
u
s
er
in
ter
f
a
ce
an
d
atr
ac
tiv
en
ess
ar
e
ess
en
tial
f
ac
to
r
s
to
attr
ac
t
m
o
r
e
co
n
s
u
m
er
s
to
an
e
-
co
m
m
er
ce
web
s
ite
[
5
5
]
.
C
o
n
v
e
r
s
ely
,
in
f
o
r
m
atio
n
q
u
ality
is
m
o
r
e
im
p
o
r
tan
t
f
o
r
ed
u
ca
tio
n
al
web
s
ite
[
1
0
]
,
[
5
6
]
.
Mo
r
eo
v
er
,
t
h
er
e
is
o
f
te
n
an
o
v
er
lap
p
i
n
g
am
o
n
g
f
ac
to
r
s
a
n
d
s
u
b
-
f
ac
t
o
r
s
[
5
7
]
wh
ich
g
en
e
r
ally
h
ap
p
e
n
s
f
o
r
th
e
m
o
d
els
in
s
p
ir
ed
b
y
s
o
f
t
war
e
q
u
ality
s
tan
d
ar
d
s
[
5
]
,
[
5
7
]
.
Fo
r
e
x
am
p
le,
‘e
f
f
icien
cy
’
is
th
e
m
ain
f
ac
t
o
r
in
I
SO
9
1
2
6
m
o
d
el,
b
u
t
it
is
a
s
u
b
f
ac
to
r
in
t
h
e
W
eb
Qu
al
4
.
0
m
o
d
el.
Ad
d
itio
n
ally
,
s
ev
er
al
web
s
ite
q
u
ality
ev
alu
atio
n
m
o
d
els
ar
e
n
o
t
s
ca
lab
le
in
ter
m
s
o
f
in
d
ic
ato
r
s
[
5
]
,
[
5
8
]
.
T
h
e
p
o
s
s
ib
ilit
y
to
f
o
cu
s
o
n
ly
o
n
s
o
m
e
q
u
ality
f
ac
t
o
r
s
o
r
s
u
b
-
f
ac
t
o
r
wh
ile
ig
n
o
r
in
g
th
e
o
t
h
er
s
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i
s
g
en
er
ally
n
o
t
k
ep
t
in
t
o
co
n
s
id
er
ati
o
n
[
1
]
,
[
5
9
]
.
I
t
is
ch
allen
g
in
g
to
ev
alu
ate
t
h
e
q
u
ality
o
f
u
n
iv
e
r
s
ity
web
s
ite
as
v
ar
io
u
s
ty
p
es
o
f
d
if
f
er
en
t in
d
icato
r
s
af
f
ec
t t
h
e
web
s
ite
'
s
d
esig
n
[
6
0
]
.
T
ab
le
7.
T
h
e
is
s
u
es o
f
ev
alu
atin
g
u
n
iv
e
r
s
ities
web
s
ite
s
q
u
ality
M
a
i
n
I
ssu
e
s
I
ssu
e
s
P
a
p
e
r
I
D
R
e
se
a
r
c
h
e
r
s
i
n
t
e
r
e
st
-
M
o
s
t
o
f
t
h
e
r
e
s
e
a
r
c
h
o
n
w
e
b
si
t
e
q
u
a
l
i
t
y
m
a
i
n
l
y
f
o
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u
se
d
o
n
b
u
s
i
n
e
ss w
e
b
s
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t
e
s
b
u
t
l
a
c
k
s
o
n
u
n
i
v
e
r
si
t
y
w
e
b
si
t
e
s
.
R
5
,
R
6
-
M
o
s
t
o
f
t
h
e
r
e
s
e
a
r
c
h
f
o
c
u
se
d
o
n
t
h
e
q
u
a
l
i
t
y
f
r
o
m
d
e
v
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o
p
e
r
a
n
d
d
e
si
g
n
e
r
p
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r
s
p
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t
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v
e
w
i
t
h
l
i
t
t
l
e
w
o
r
k
o
n
u
s
e
r
p
e
r
sp
e
c
t
i
v
e
s
.
R1
P
r
o
b
l
e
ms f
r
o
m
w
e
b
si
t
e
d
e
v
e
l
o
p
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r
s
a
sp
e
c
t
s
-
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a
n
y
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n
i
v
e
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si
t
y
w
e
b
s
i
t
e
d
e
s
i
g
n
e
r
s
d
i
d
n
o
t
h
a
v
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t
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a
p
p
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o
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t
e
k
n
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t
y
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a
n
d
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s
e
r
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n
t
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f
a
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g
n
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e
y
c
a
u
s
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d
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n
n
e
c
e
ssar
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r
a
f
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a
l
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n
s
i
st
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n
t
i
n
t
e
r
ms
o
f
c
o
l
o
r
s,
st
r
u
c
t
u
r
e
,
a
n
d
f
o
n
t
s.
R
2
,
R
1
5
-
M
a
n
y
u
n
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v
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si
t
y
w
e
b
s
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t
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t
y
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f
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n
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t
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n
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l
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t
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sec
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r
i
t
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,
w
e
b
a
p
p
e
a
r
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e
,
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n
d
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e
q
u
a
l
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y
o
f
t
h
e
c
o
n
t
e
n
t
.
R
2
,
R
3
,
R
1
8
,
R
2
1
,
R
2
2
P
r
o
b
l
e
ms f
r
o
m
w
e
b
si
t
e
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v
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a
t
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n
a
sp
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W
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s
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q
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a
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y
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v
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a
t
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s
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o
mp
l
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x
a
n
d
mu
l
t
i
d
i
me
n
s
i
o
n
a
l
.
R
1
,
R
2
,
R
3
,
R
4
,
R
1
4
-
Th
e
r
e
i
s
n
o
s
p
e
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f
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v
a
l
u
a
t
i
o
n
m
o
d
e
l
f
o
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u
n
i
v
e
r
s
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t
y
w
e
b
s
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t
e
s t
h
a
t
t
a
k
e
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t
o
a
c
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n
t
t
h
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n
e
e
d
s
o
f
d
i
f
f
e
r
e
n
t
u
ser
g
r
o
u
p
s.
R6
-
Th
e
st
a
n
d
a
r
d
o
f
e
v
a
l
u
a
t
i
o
n
w
e
b
si
t
e
q
u
a
l
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t
y
i
s
st
i
l
l
l
i
m
i
t
e
d
.
R
1
0
,
R
1
5
-
G
e
n
e
r
a
l
m
o
d
e
l
s
h
a
v
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f
t
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n
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a
p
p
l
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d
t
o
a
ss
e
ss
t
h
e
q
u
a
l
i
t
y
o
f
a
c
a
d
e
mi
c
w
e
b
si
t
e
s
,
b
u
t
t
h
e
y
d
o
n
o
t
c
o
n
s
i
d
e
r
t
h
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e
q
u
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r
e
m
e
n
t
s
o
f
s
p
e
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i
f
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c
s
t
a
k
e
h
o
l
d
e
r
s
o
f
t
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e
w
e
b
si
t
e
.
R
6
,
R
1
5
-
Li
mi
t
e
d
a
c
a
d
e
mi
c
r
e
s
e
a
r
c
h
o
n
t
h
e
o
v
e
r
a
l
l
w
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b
s
i
t
e
q
u
a
l
i
t
y
a
n
d
mo
s
t
o
f
t
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m
c
o
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e
n
t
r
a
t
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o
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a
sp
e
c
i
f
i
c
t
o
p
i
c
o
n
q
u
a
l
i
t
y
s
u
c
h
a
s
u
sa
b
i
l
i
t
y
.
R
1
,
R
3
,
R
1
0
,
R
1
5
,
R
2
1
3
.
2
.
T
o
identif
y
t
he
ba
s
e
m
o
del o
r
a
s
pect
f
o
r
ev
a
lua
t
ing
t
he
qu
a
lity
o
f
un
iv
er
s
it
ies'
we
bs
it
es
T
ab
le
8
an
d
Fig
u
r
e
3
illu
s
tr
at
e
th
e
d
is
tr
ib
u
tio
n
o
f
m
o
d
els
o
r
asp
ec
ts
o
f
cr
iter
ia
u
s
ed
to
e
v
alu
ate
th
e
u
n
iv
er
s
ity
web
s
ite
q
u
ality
.
T
h
er
e
ar
e
1
1
ev
alu
atio
n
m
o
d
els
wer
e
ex
tr
ac
ted
f
r
o
m
t
h
is
SLR.
T
h
e
m
o
s
t
f
r
eq
u
en
t
m
o
d
el
u
s
ed
to
m
ea
s
u
r
e
th
e
q
u
ality
was Web
Qu
al
4
.
0
(
46
%)
,
f
o
llo
wed
b
y
I
SO/IE
C
9
1
2
6
(
13
%).
3
.
3
.
T
o
inv
estig
a
t
e
f
a
c
t
o
rs a
nd
ind
ica
t
o
rs t
o
ev
a
lua
t
e
t
he
qu
a
lity
o
f
un
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er
s
it
ies'
webs
it
es
7
9
q
u
ality
f
ac
to
r
s
f
r
o
m
2
4
s
tu
d
ies
h
av
e
b
ee
n
ex
tr
ac
ted
in
th
i
s
SLR.
Af
ter
r
em
o
v
in
g
d
u
p
licatio
n
s
an
d
ap
p
ly
in
g
m
e
m
o
in
g
tech
n
iq
u
e
,
s
ix
q
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f
ac
to
r
s
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e
id
en
tifie
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:
I
n
f
o
r
m
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q
u
ality
,
s
p
ec
if
ic
co
n
ten
t,
u
s
ab
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,
web
ap
p
ea
r
a
n
ce
,
s
er
v
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in
ter
ac
tio
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q
u
ali
ty
,
an
d
f
u
n
ctio
n
ality
.
B
esid
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th
e
f
ac
to
r
s
,
th
is
s
tu
d
y
also
id
en
tifie
d
th
e
in
d
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r
s
f
o
r
ea
ch
f
ac
to
r
s
as lis
ted
in
T
ab
le
9
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
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d
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J
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&
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p
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-
4
7
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2
S
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T
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.
B
ase
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web
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q
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m
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R
1
1
I
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1
2
6
R
6
,
R
1
0
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R
1
7
W
e
b
Q
u
a
l
4
.
0
R
4
,
R
7
,
R
8
,
R
1
6
,
R
1
8
,
R
1
9
,
R
2
0
,
R
2
1
,
R
2
2
,
R
2
3
,
R
2
4
P
e
r
f
o
r
ma
n
c
e
c
r
i
t
e
r
i
a
s
R
1
2
Fig
u
r
e
3
.
B
ase
m
o
d
el
f
o
r
web
s
ite
q
u
ality
ev
alu
atio
n
T
ab
le
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trate
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tac
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m
a
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z
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li
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h
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tm.m
y
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.
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slin
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m
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t
ly
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tru
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S
h
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c
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tac
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:
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slin
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k
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tm.m
y
.
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