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ag
e
a
n
d
in
c
o
r
p
o
r
ati
o
n
h
as
g
o
tte
n
a
co
n
s
id
er
ab
le
m
ea
s
u
r
e
at
t
h
e
i
n
f
o
r
m
atio
n
ad
m
in
i
s
tr
atio
n
a
n
d
ap
p
licatio
n
d
ev
elo
p
m
e
n
t
s
ta
g
e.
T
h
e
is
s
u
es
i
n
co
r
p
o
r
ated
w
it
h
clo
u
d
a
p
p
licatio
n
s
an
d
d
ata
s
to
r
ag
e
an
d
r
etr
ie
v
al
d
is
c
u
s
s
ed
in
c
u
r
r
en
t r
esear
c
h
.
No
w
a
d
ay
s
,
t
h
e
i
m
p
o
r
tan
ce
o
f
r
ap
id
in
c
r
ea
s
e
o
f
d
is
tr
ib
u
ted
en
v
ir
o
n
m
e
n
t
s
f
o
r
lar
g
e
d
ata
s
o
u
r
ce
s
an
d
t
h
e
r
esp
ec
tiv
e
b
e
n
ef
its
o
f
clo
u
d
co
m
p
u
ti
n
g
a
lo
n
g
w
it
h
r
ap
id
in
cr
ea
s
e
o
f
u
s
er
’
s
i
m
p
o
r
tan
ce
.
T
h
e
C
AR
OM
f
r
a
m
e
w
o
r
k
f
o
r
co
m
b
i
n
in
g
th
e
d
ep
lo
y
ed
r
ep
licatio
n
an
d
er
as
u
r
e
co
d
ed
s
ch
e
m
es
[
1
]
.
T
h
e
co
n
ten
t
b
a
s
ed
m
u
lt
i
h
o
s
ti
n
g
ap
p
r
o
ac
h
es
f
o
r
d
ata
h
o
s
ti
n
g
ar
e
i
m
p
le
m
en
ted
b
y
u
s
i
n
g
t
h
e
C
MO
a
n
d
th
e
c
lien
t
ad
ap
tatio
n
al
g
o
r
ith
m
s
to
o
p
ti
m
ize
b
o
th
th
e
p
er
f
o
r
m
a
n
ce
a
n
d
t
h
e
co
s
t
.
T
h
e
ex
p
er
i
m
en
tal
r
esu
lt
s
s
h
o
w
s
th
e
C
MO
alg
o
r
ith
m
e
f
f
ec
ti
v
el
y
r
ed
u
ce
th
e
h
o
s
tin
g
co
s
t
[
2
]
.
T
h
e
is
s
u
e
o
f
m
u
lti
clo
u
d
s
to
r
ag
e
w
it
h
a
n
e
m
p
h
a
s
is
o
n
ac
ce
s
s
i
b
ilit
y
an
d
co
s
t
v
ar
iab
les.
As
a
r
esu
lt
o
f
m
o
r
e
co
s
t,
th
e
cli
en
ts
ca
n
'
t
p
ick
th
e
s
er
v
ices
r
ea
s
o
n
ab
l
y
.
T
h
er
e
is
a
w
o
r
r
y
ab
o
u
t
m
o
v
i
n
g
v
ast
m
ea
s
u
r
e
o
f
in
f
o
r
m
atio
n
in
to
a
s
o
litar
y
i
s
lik
e
s
elle
r
s
ec
u
r
e
h
az
ar
d
.
T
h
e
m
a
n
ag
e
m
en
t
o
f
in
f
o
r
m
at
io
n
m
ea
n
s
t
h
e
b
asic
in
f
o
r
m
at
io
n
d
iv
id
ed
in
to
s
to
r
in
g
d
if
f
er
en
t
m
is
ts
a
n
d
e
x
p
ec
tin
g
w
i
th
h
i
g
h
i
n
f
o
r
m
atio
n
ac
ce
s
s
ib
ilit
y
a
n
d
s
ec
u
r
it
y
.
T
h
e
clo
u
d
co
m
p
u
ti
n
g
h
i
g
h
li
g
h
ts
g
i
v
es
m
o
r
e
ad
v
a
n
ta
g
es to
t
h
e
clie
n
ts
r
eg
ar
d
in
g
m
i
n
i
m
al
e
f
f
o
r
t a
n
d
ac
ce
s
s
ib
ilit
y
o
f
i
n
f
o
r
m
atio
n
is
a
p
r
im
ar
y
v
ar
iab
le.
T
h
e
f
ailu
r
e
o
f
i
n
ti
m
e
s
er
v
ice
av
ailab
ilit
y
is
o
n
e
m
o
r
e
m
aj
o
r
is
s
u
e
in
s
in
g
le
clo
u
d
s
er
v
ice
[
3
]
.
A
h
y
b
r
id
clo
u
d
e
n
v
ir
o
n
m
en
t
is
a
m
i
x
o
f
p
r
iv
a
te,
p
u
b
lic
an
d
th
ir
d
p
ar
t
y
clo
u
d
s
w
it
h
b
en
ef
it
s
o
f
m
u
ltip
le
d
ep
lo
y
m
e
n
t
s
.
Her
e
t
h
is
r
esear
c
h
ad
d
r
ess
ed
th
e
i
s
s
u
e
s
r
elate
d
to
s
in
g
le
a
n
d
m
u
lti
-
clo
u
d
p
lat
f
o
r
m
s
p
r
o
b
lem
s
.
Ma
n
y
n
e
w
to
o
ls
l
ik
e
A
p
ac
h
e
lib
r
ar
y
p
r
o
v
id
es
a
n
o
v
el
i
n
ter
f
ac
e
o
n
v
ar
io
u
s
m
is
t
s
f
o
r
h
elp
i
n
g
o
r
g
an
izatio
n
s
o
f
m
u
lti
-
ad
m
in
is
tr
atio
n
s
.
T
h
is
tech
n
iq
u
e
h
elp
s
in
co
r
r
esp
o
n
d
en
ce
b
et
w
ee
n
v
ar
io
u
s
m
i
s
ts
.
Her
e
th
e
s
y
s
te
m
in
m
u
lti
co
n
d
itio
n
ca
n
'
t
b
e
t
h
o
u
g
h
t
ab
o
u
t
i
n
li
g
h
t
o
f
th
e
f
ac
t
th
at
it
is
d
e
m
o
n
s
tr
ated
alto
g
eth
er
d
if
f
er
e
n
t
f
r
o
m
t
h
e
o
u
tco
m
es
in
t
w
o
w
o
r
k
s
.
Her
e
th
e
cr
ea
to
r
s
m
a
n
ag
e
t
h
e
ca
p
ac
it
y
o
f
h
u
b
u
n
s
tead
il
y
.
A
co
m
p
ar
ab
le
w
o
r
k
o
n
th
i
s
f
r
a
m
e
w
o
r
k
,
w
h
er
e
r
ep
licatio
n
i
n
v
ar
io
u
s
s
er
v
er
f
ar
m
s
ar
e
ex
a
m
i
n
ed
an
d
cr
ea
to
r
m
an
a
g
e
s
to
r
e
th
e
d
ata
i
n
t
h
e
ess
e
n
tial
s
er
v
er
f
o
r
m
.
T
h
e
r
esear
ch
o
n
clo
u
d
co
m
p
u
ti
n
g
in
n
o
v
at
io
n
h
as
f
u
n
d
a
m
en
ta
l
d
o
w
n
s
id
e
o
n
s
el
l
er
s
ec
u
r
e.
T
h
e
b
en
e
f
it
to
d
esi
g
n
er
s
w
o
n
'
t
p
er
m
it
to
g
et
b
e
n
ef
it
f
o
r
n
o
t
h
i
n
g
a
n
d
d
o
es
n
o
t
p
er
m
it
to
b
len
d
an
d
m
atc
h
ap
p
licatio
n
s
an
d
ad
m
i
n
is
tr
atio
n
s
.
Hen
ce
f
o
r
th
t
h
e
y
p
r
ese
n
ted
a
f
lo
w
d
iag
r
a
m
w
it
h
b
en
e
f
its
f
o
r
n
o
th
in
g
o
f
co
s
t.
T
h
e
ap
p
licatio
n
an
d
s
tack
i
n
g
th
e
as
s
ets
i
n
to
t
h
is
ap
p
r
o
ac
h
g
i
v
es
n
o
v
el
s
tr
ate
g
y
to
p
r
o
v
is
io
n
i
n
g
an
d
r
o
b
o
tizin
g
ad
m
i
n
is
tr
atio
n
s
a
n
d
f
u
r
t
h
er
m
o
r
e
ap
p
licatio
n
s
r
u
n
p
r
o
g
r
es
s
i
v
el
y
o
n
co
m
p
letel
y
v
ir
tu
alize
d
m
i
s
t
s
[
4
]
.
T
h
e
s
ec
u
r
it
y
i
s
a
m
aj
o
r
co
n
ce
r
n
f
o
r
w
o
r
k
i
n
g
w
it
h
cr
iti
ca
l
ap
p
licatio
n
an
d
co
m
p
le
x
d
ata.
He
p
r
o
p
o
s
ed
th
at
th
e
m
u
l
tip
le
clo
u
d
s
a
r
e
co
m
p
en
s
at
io
n
s
o
v
er
s
in
g
l
e
clo
u
d
.
T
r
ad
e
o
f
in
f
o
r
m
atio
n
f
r
o
m
d
i
f
f
er
en
t
m
i
s
ts
a
n
d
d
eter
m
in
a
tio
n
o
f
m
i
s
ts
in
v
ie
w
o
f
co
s
t
a
n
d
ad
m
i
n
is
tr
atio
n
s
ar
e
d
is
c
u
s
s
e
d
[
5
]
.
T
h
ey
c
h
ec
k
ed
o
n
s
i
g
n
if
i
ca
n
t
n
u
m
b
er
o
f
t
h
e
v
e
n
t
u
r
es
is
n
ee
d
ed
in
a
u
g
m
en
ta
tio
n
o
f
e
m
b
r
ac
in
g
clo
u
d
co
m
p
u
ti
n
g
i
n
n
o
v
atio
n
.
T
h
e
u
s
ag
e
p
r
o
m
p
t
s
to
s
h
a
k
i
n
es
s
i
n
r
an
g
e,
f
o
r
e
x
a
m
p
le,
s
ec
u
r
it
y
an
d
i
n
ter
o
p
er
ab
ilit
y
p
r
o
m
p
ts
to
m
er
c
h
an
t
s
ec
u
r
e.
C
o
n
s
eq
u
en
tl
y
t
h
e
i
n
s
tit
u
tio
n
al
izatio
n
is
p
r
esen
ted
w
h
ic
h
in
c
lu
d
es
v
i
r
tu
aliza
tio
n
w
h
ic
h
ass
u
m
e
cr
itical
p
ar
t
in
clo
u
d
co
m
p
u
tin
g
.
T
h
e
in
f
o
r
m
atio
n
f
ac
i
litati
n
g
p
la
n
s
s
aid
in
o
u
r
p
ap
er
co
n
ce
n
tr
ate
o
n
v
ar
io
u
s
an
g
l
es
li
k
e
s
eller
s
ec
u
r
e,
c
h
o
o
s
i
n
g
ap
p
r
o
p
r
iate
in
f
o
r
m
a
tio
n
f
ac
ilit
ati
n
g
s
y
s
te
m
,
ad
v
an
ce
m
en
t
o
f
ex
ec
u
tio
n
e
n
s
u
r
in
g
ad
ap
t
ab
le
ac
ce
s
s
ib
ilit
y
a
n
d
s
ec
u
r
it
y
[
6
]
.
T
h
e
au
th
o
r
h
a
s
g
i
v
en
i
n
p
r
ev
io
u
s
p
u
b
licatio
n
s
th
e
m
et
h
o
d
o
lo
g
y
f
o
r
i
m
p
r
o
v
i
n
g
q
u
ali
t
y
o
f
d
ata
an
d
co
m
p
ar
is
o
n
o
n
co
m
p
u
ti
n
g
tech
n
iq
u
e
s
to
ad
d
th
e
i
n
tel
lig
e
n
ce
w
it
h
t
h
e
h
elp
o
f
m
ac
h
i
n
e
lear
n
i
n
g
alg
o
r
it
h
m
s
[
7
]
,
[
8
]
.
T
h
e
C
H
A
R
M
is
a
o
n
e
o
f
th
e
d
ata
h
o
s
ti
n
g
m
o
d
el
in
m
u
ltip
le
clo
u
d
en
v
ir
o
n
m
en
t
s
.
T
h
is
f
r
a
m
e
w
o
r
k
i
s
ap
p
lied
to
b
u
id
th
e
m
o
d
el
o
n
v
ar
io
u
s
zo
n
e
s
o
f
clo
u
d
s
d
ata
th
r
o
u
g
h
o
u
t
t
h
e
w
o
r
ld
.
B
y
ta
k
i
n
g
th
e
r
e
f
er
en
ce
f
r
o
m
t
h
is
f
r
a
m
e
w
o
r
k
,
in
t
h
is
p
ap
er
a
h
y
b
r
id
clo
u
d
d
ata
h
o
s
tin
g
w
it
h
h
ig
h
av
ailab
ilit
y
an
d
le
s
s
co
s
t
m
o
d
el
is
p
r
esen
ti
n
g
o
n
I
n
d
ia
n
d
ata
[
9
]
.
T
h
e
ef
f
ec
ti
v
e
f
r
a
m
e
w
o
r
k
b
ased
o
n
co
m
p
o
n
en
t
r
an
k
i
n
g
f
o
r
i
m
p
r
o
v
i
n
g
r
eliab
ilit
y
o
f
clo
u
d
ap
p
licati
o
n
s
.
T
h
e
m
p
ac
t
o
f
co
m
p
o
n
e
n
t
r
an
k
i
n
g
is
p
u
r
el
y
r
ela
y
o
n
t
w
o
m
aj
o
r
f
ac
to
r
s
a
s
er
r
o
r
p
r
o
p
o
g
atio
n
a
n
d
in
ter
n
al
f
ai
lu
r
es.
I
n
th
e
ir
w
o
r
k
,
f
ir
s
t
t
h
e
y
id
en
ti
f
ied
t
h
e
s
ig
n
i
f
ica
n
t
co
m
p
o
n
e
n
ts
i
n
ap
p
licatio
n
an
d
th
e
n
i
m
p
r
o
v
i
n
g
t
h
e
r
eliab
ilit
y
o
f
th
ese
id
en
ti
f
ied
co
m
p
o
n
en
t
s
lead
s
to
i
m
p
r
o
v
e
m
e
n
t
o
f
t
h
e
r
eliab
ilit
y
o
f
clo
u
d
ap
p
licati
o
n
.
Fo
r
i
m
p
r
o
v
i
n
g
s
ig
n
i
f
ica
n
t
co
m
p
o
n
e
n
ts
i
n
t
h
e
ap
p
licatio
n
m
o
r
e
f
ac
to
r
s
ar
e
i
n
f
lu
e
n
ci
n
g
l
ik
e
ti
m
l
y
r
esp
o
n
s
e
an
d
av
ailab
ilit
y
o
f
ac
ce
s
s
[
1
0
]
.
I
n
d
ata
h
o
s
ti
n
g
,
o
n
e
m
o
r
e
i
n
f
lu
e
n
ci
n
g
f
ac
to
r
is
s
ec
u
r
e
s
tira
g
e
f
r
a
m
e
w
o
r
k
to
p
r
o
v
id
e
s
ec
u
r
e
ac
ce
s
s
.
I
n
to
d
a
y
s
d
is
tr
ib
u
ted
s
to
r
ag
e
en
v
ir
o
n
m
e
n
t,
d
ata
s
h
ar
in
g
e
n
s
u
r
es
w
h
o
m
to
ac
ce
s
s
a
n
d
f
r
o
m
w
h
o
m
to
r
estrict
ac
ce
s
s
.
T
h
e
y
co
n
ce
n
tr
ated
o
n
o
v
er
h
ea
d
o
f
e
x
ec
u
t
io
n
w
h
e
n
w
o
r
k
in
g
w
it
h
a
m
az
o
n
S3
.
A
s
u
cc
e
s
s
f
u
l
ex
ec
u
t
io
n
o
f
F
A
DE
m
o
d
el
d
ata
s
to
r
ag
e
f
r
a
m
e
w
o
r
k
en
s
u
r
es
f
in
e
g
r
ain
ed
a
n
d
s
ta
teg
y
b
ased
co
n
tr
o
l
o
v
er
d
is
tr
ib
u
ted
s
to
r
ag
e
[
1
1
]
.
So
cial
n
et
w
o
r
k
d
ata
a
n
d
clo
u
d
d
ata
co
n
tai
n
i
m
p
o
r
ta
n
t
u
s
er
p
er
s
o
n
al
i
n
f
o
r
m
atio
n
w
h
ic
h
n
ee
d
s
h
ig
h
av
ailab
il
it
y
an
d
s
ec
u
r
it
y
o
n
th
i
s
s
e
n
s
iti
v
e
d
ata.
T
h
e
y
ad
d
r
ess
ed
th
e
s
ec
u
r
it
y
is
s
u
e
b
y
u
s
i
n
g
h
ier
ar
ch
ical
attr
ib
u
te
b
ased
en
cr
y
p
tio
n
o
n
cip
h
er
p
o
lic
y
[
1
2
]
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8708
I
J
E
C
E
Vo
l
.
7
,
No
.
4
,
A
u
g
u
s
t
2
0
1
7
:
2
1
7
6
–
2
1
8
2
2178
3.
H
YB
RID CLO
UD
CH
A
L
L
E
N
G
E
S
A
h
y
b
r
id
clo
u
d
en
v
ir
o
n
m
e
n
t
h
as
f
e
w
b
u
r
n
i
n
g
c
h
alle
n
g
e
s
th
at
n
ee
d
to
b
e
co
n
s
id
er
ed
:
Net
w
o
r
k
co
n
n
ec
ti
v
it
y
is
o
n
e
o
f
th
e
m
aj
o
r
ch
allen
g
e
s
f
o
r
co
n
n
ec
ti
n
g
r
e
m
o
te
clo
u
d
s
er
v
ice
lik
e
p
u
b
l
ic
o
r
p
r
iv
ate.
Her
e
n
o
t
o
n
l
y
t
h
e
b
an
d
w
id
t
h
,
r
eliab
ilit
y
a
n
d
r
esp
ec
tiv
e
co
s
t
ef
f
ec
t
iv
en
e
s
s
ar
e
to
b
e
tak
en
i
n
to
ac
co
u
n
t,
b
u
t
al
s
o
th
e
n
et
w
o
r
k
to
p
o
lo
g
y
also
n
ee
d
s
to
b
e
ca
r
ef
u
ll
y
d
esig
n
ed
.
Ma
n
ag
ea
b
ili
t
y
o
f
d
i
f
f
er
e
n
t
clo
u
d
s
er
v
ices
is
a
n
o
th
er
ch
alle
n
g
e
i
n
h
y
b
r
id
clo
u
d
en
v
ir
o
n
m
e
n
t.
W
it
h
m
u
lt
ip
le
clo
u
d
s
er
v
ice
s
,
th
eir
o
w
n
m
an
a
g
e
m
e
n
t
an
d
en
v
ir
o
n
m
e
n
t
s
etu
p
s
.
I
n
h
y
b
r
id
clo
u
d
all
th
ese
e
n
v
ir
o
n
m
en
t
s
ca
n
b
e
co
n
s
id
er
ed
co
m
p
lete
l
y
in
d
ep
en
d
en
t
f
r
o
m
ea
ch
o
th
er
.
B
y
h
a
v
i
n
g
in
s
tan
c
es in
d
i
f
f
er
e
n
t c
lo
u
d
s
er
v
ices,
t
h
er
e
is
n
o
co
m
p
lete
p
ict
u
r
e
av
ailab
le
s
h
o
w
i
n
g
t
h
e
n
u
m
b
er
o
f
to
tall
y
d
ep
lo
y
ed
i
n
s
tan
ce
s
.
A
tr
a
n
s
p
o
s
itio
n
la
y
er
is
a
p
o
s
s
ib
le
s
o
lu
t
io
n
f
o
r
th
i
s
p
r
o
b
lem
to
p
r
o
v
id
e
a
s
in
g
le
i
n
ter
f
ac
e
f
o
r
all
clo
u
d
s
.
T
h
e
ex
is
ti
n
g
h
y
b
r
id
clo
u
d
s
m
ai
n
l
y
p
r
o
v
id
in
g
ap
p
licatio
n
an
d
i
n
f
r
astru
ct
u
r
e
s
er
v
ices.
T
h
e
d
ata
i
n
te
g
r
ato
r
s
p
r
o
v
id
ed
at
th
e
ap
p
licatio
n
l
a
y
er
.
T
h
u
s
a
h
y
b
r
id
clo
u
d
is
a
co
m
b
in
at
io
n
o
f
v
ar
iet
y
o
f
clo
u
d
s
li
k
e
p
r
iv
a
te,
p
u
b
lic
an
d
a
co
m
b
in
a
tio
n
.
A
l
l
ab
o
v
e
d
is
cu
s
s
ed
c
h
alle
n
g
es
ar
e
o
v
er
co
m
e
w
it
h
Op
en
Stac
k
s
ta
n
d
ar
d
A
P
I
.
4.
DATA H
O
S
T
I
N
G
I
N
H
YB
R
I
D
CL
O
UD
4
.
1
.
M
e
t
ho
do
lo
g
y
T
h
e
m
et
h
o
d
o
lo
g
y
to
d
ata
h
o
s
ti
n
g
s
ch
e
m
e
i
n
h
y
b
r
id
clo
u
d
is
s
h
o
w
n
i
n
F
i
g
u
r
e
1
.
Fig
u
r
e
1
.
H
y
b
r
id
clo
u
d
Data
h
o
s
tin
g
A
r
ch
itec
tu
r
e
4
.
2
.
Sto
ra
g
e
M
o
dels
o
f
M
a
j
o
rit
y
Clo
ud
Serv
ices
T
o
k
n
o
w
th
e
p
r
ici
n
g
m
o
d
els
o
f
cu
r
r
en
tl
y
a
v
ailab
le
clo
u
d
v
en
d
o
r
s
in
I
n
d
ia,
I
n
t
h
is
s
tu
d
y
th
r
ee
m
o
s
t
cu
r
r
en
t
c
lo
u
d
s
to
r
ag
e
s
er
v
ice
s
th
r
o
u
g
h
t
h
e
w
o
r
ld
:
W
in
d
o
w
s
A
zu
r
e,
Am
az
o
n
S3
,
Go
o
g
le
C
lo
u
d
Sto
r
ag
e
ar
e
s
u
r
v
e
y
ed
.
T
h
e
latest
p
r
icin
g
m
o
d
el
s
in
cl
u
d
es
s
to
r
ag
e
an
d
b
an
d
w
id
t
h
in
I
n
d
ia
f
o
r
2
0
1
7
ar
e
p
r
esen
ted
in
T
ab
le
1
.
T
ab
le
1
.
P
r
ices o
f
s
to
r
ag
e
(
in
₹
/GB
/Mo
n
th
)
an
d
o
u
t
g
o
in
g
b
an
d
w
id
th
(
i
n
₹
/GB
/Mo
n
t
h
)
W
i
n
d
o
w
s Az
u
r
e
A
maz
o
n
S
3
G
o
o
g
l
e
C
l
o
u
d
S
t
o
r
a
g
e
C
e
n
t
r
a
l
I
n
d
i
a
S
o
u
t
h
I
n
d
i
a
W
e
st
I
n
d
i
a
A
si
a
P
a
c
i
f
i
c
(
M
u
mb
a
i
)
S
t
a
n
d
a
r
d
P
r
i
c
e
S
t
o
r
a
g
e
(
₹ /
G
B
/
M
o
n
t
h
)
7
.
2
8
6
.
5
5
--
1
.
5
9
8
2
9
.
5
5
B
a
n
d
w
i
d
t
h
(
₹ /
G
B
/
M
o
n
t
h
)
--
8
6
6
.
5
8
6
6
.
5
4
.
6
3
7
9
4
.
2
6
4
.
3
.
H
y
brid Clo
ud
A
cc
o
r
d
in
g
to
th
e
m
aj
o
r
it
y
o
f
u
s
a
g
e
f
r
o
m
ab
o
v
e
s
ta
tis
t
ics
m
u
lti
clo
u
d
s
ar
e
av
ai
lab
le
f
o
r
d
ata
h
o
s
ti
n
g
.
Data
ca
n
b
e
v
ie
w
ed
b
y
a
u
s
er
in
s
o
m
e
r
eg
io
n
s
an
d
av
a
il
ab
ilit
y
o
f
u
p
lo
ad
in
g
d
ata
in
to
m
u
l
tip
le
clo
u
d
s
is
p
r
o
v
id
ed
in
in
tellig
e
n
t
w
a
y
.
S
o
,
th
e
u
s
er
ca
n
ch
o
o
s
e
th
e
s
u
it
ab
le
clo
u
d
ac
co
r
d
in
g
to
h
is
m
o
d
e
o
f
tr
an
s
ac
tio
n
s
an
d
av
ailab
le
c
lo
u
d
w
it
h
e
f
f
ec
tiv
e
co
s
t
an
d
h
i
g
h
a
v
ailab
ili
t
y
.
T
h
r
o
u
g
h
th
i
s
f
r
a
m
e
w
o
r
k
,
th
e
u
s
er
ca
n
c
h
o
o
s
e
h
i
s
r
eq
u
ir
ed
clo
u
d
w
it
h
th
e
co
m
p
r
eh
en
s
i
v
e
f
ea
t
u
r
es o
f
e
f
f
ec
ti
v
e
co
s
t,
ea
s
y
u
s
e
an
d
h
ig
h
a
v
aila
b
ilit
y
.
W
o
r
k
l
o
ad
A
ma
z
o
n
S
3
W
i
nd
o
ws
A
z
ur
e
G
o
o
g
l
e
Cl
o
ud
S
t
o
r
ag
e
D
at
a
H
o
st
i
ng
C
l
i
e
nt
1
C
l
i
e
nt
2
C
l
i
e
nt
3
Evaluation Warning : The document was created with Spire.PDF for Python.
I
J
E
C
E
I
SS
N:
2
0
8
8
-
8708
I
n
tellig
en
t H
yb
r
id
C
lo
u
d
Da
ta
Ho
s
tin
g
S
ervices wit
h
E
ffe
ctiv
e
C
o
s
t a
n
d
Hig
h
….
(
Ma
d
h
u
B
a
la
Myn
en
i
)
2179
4
.
4
.
T
ra
ns
it
io
n St
o
ra
g
e
M
o
des
T
r
an
s
itio
n
s
to
r
ag
e
m
o
d
e
s
ar
e
d
e
f
in
ed
b
ased
o
n
f
r
eq
u
e
n
c
y
o
f
u
s
ag
e
o
f
f
i
les.
E
ac
h
clo
u
d
w
ill
s
p
ec
if
y
h
o
w
m
a
n
y
w
a
y
s
th
e
y
ar
e
p
r
o
v
id
in
g
d
i
f
f
er
e
n
t
s
to
r
a
g
e
n
o
d
es.
I
n
g
e
n
er
al
th
e
s
to
r
ag
e
m
o
d
es
a
r
e
ter
m
ed
li
k
e
Ho
t,
W
ar
m
,
C
o
o
l a
n
d
C
o
ld
.
T
h
e
ch
an
g
e
i
n
ac
ce
s
s
f
r
eq
u
e
n
c
y
o
f
th
e
f
ile
f
alls
u
n
d
er
o
r
r
is
es
ab
o
v
e
a
t
h
r
esh
o
ld
v
al
u
e,
th
en
n
ee
d
to
ch
a
n
g
e
t
h
e
m
o
d
e
o
f
s
to
r
ag
e
a
n
d
s
a
v
e
m
o
r
e
m
o
n
e
y
.
T
h
ese
p
r
ices
ar
e
d
eter
m
i
n
ed
ti
m
e
to
ti
m
e
b
y
th
e
clo
u
d
v
e
n
d
o
r
s
.
Fro
m
t
h
e
ex
is
t
in
g
clo
u
d
s
,
t
h
e
s
to
r
a
g
e
m
o
d
e,
in
p
u
t
f
ile
’
s
s
ize,
tr
a
n
s
ac
t
io
n
t
y
p
e
a
n
d
ac
ti
v
e
ac
ce
s
s
f
r
eq
u
en
c
y
ar
e
co
llecte
d
.
T
h
e
av
ailab
le
s
to
r
ag
e
m
o
d
es
alo
n
g
w
it
h
clo
u
d
s
to
r
ag
e
p
r
o
v
id
er
s
in
I
n
d
ia
ar
e
lis
ted
in
T
ab
le
2
.
T
ab
le
2
.
Sto
r
ag
e
m
o
d
els ca
te
g
o
r
izatio
n
S
t
o
r
a
g
e
c
l
a
ss
F
e
a
t
u
r
e
s
P
r
o
v
i
d
e
r
s
HOT
A
v
a
i
l
a
b
l
e
,
d
u
r
a
b
l
e
,
a
v
a
i
l
a
b
l
e
a
n
d
p
e
r
f
o
r
man
c
e
d
a
t
a
s
t
o
r
a
g
e
f
o
r
f
r
e
q
u
e
n
t
l
y
a
c
c
e
sse
d
d
a
t
a
A
maz
o
n
-
S
3
,
M
i
c
r
o
so
f
t
A
z
u
r
e
,
G
o
o
g
l
e
C
l
o
u
d
S
t
o
r
a
g
e
st
a
n
d
a
r
d
W
A
R
M
L
o
w
e
r
c
o
st
,
l
e
ss d
u
r
a
b
i
l
i
t
y
f
o
r
f
r
e
q
u
e
n
t
l
y
a
c
c
e
sse
d
n
o
n
-
c
r
i
t
i
c
a
l
r
e
p
r
o
d
u
c
i
b
l
e
d
a
t
a
A
maz
o
n
-
S
3
,
M
i
c
r
o
so
f
t
A
z
u
r
e
,
G
o
o
g
l
e
C
l
o
u
d
S
t
o
r
a
g
e
C
O
O
L
S
t
o
r
a
g
e
c
l
a
ss fo
r
d
a
t
a
t
h
a
t
i
s
a
c
c
e
sse
d
l
e
ss fr
e
q
u
e
n
t
l
y
A
maz
o
n
-
S
3
,
S
t
a
n
d
a
r
d
I
/
A
,
G
o
o
g
l
e
C
l
o
u
d
S
t
o
r
a
g
e
,
M
i
c
r
o
so
f
t
A
z
u
r
e
C
O
L
D
S
e
c
u
r
e
,
d
u
r
a
b
l
e
,
l
o
w
-
c
o
st
st
o
r
a
g
e
se
r
v
i
c
e
A
maz
o
n
G
l
a
c
i
e
r
4
.
5
.
Da
t
a
H
o
s
t
ing
I
n
h
y
b
r
id
clo
u
d
e
n
v
ir
o
n
m
e
n
t,
d
ata
h
o
s
tin
g
p
la
y
s
a
m
aj
o
r
r
o
le
to
d
ec
id
e
th
e
s
to
r
ag
e
m
o
d
e
an
d
th
e
r
elev
an
t
clo
u
d
s
er
v
ice
t
h
at
th
e
d
ata
to
b
e
s
to
r
ed
in
m
u
lti
c
l
o
u
d
en
v
ir
o
n
m
en
t
s
.
T
o
ch
o
o
s
e
th
e
e
f
f
ec
ti
v
e
n
o
d
e
h
er
e
e
m
p
ir
ical
al
g
o
r
ith
m
is
u
s
ed
as d
ata
h
o
s
tin
g
s
o
l
u
tio
n
.
5.
E
XP
E
R
I
M
E
NT
A
L
SO
L
U
T
I
O
N
T
h
e
E
m
p
ir
ical
s
o
lu
tio
n
co
n
s
i
d
er
s
th
e
f
o
u
r
p
ar
a
m
eter
s
as
b
an
d
w
id
th
;
a
v
ailab
il
it
y
;
s
to
r
ag
e
s
p
ac
e
an
d
o
p
er
atio
n
al
p
r
ices
ar
e
in
d
icato
r
s
o
f
clo
u
d
p
er
f
o
r
m
a
n
ce
.
E
a
ch
clo
u
d
v
al
u
e
i
is
ca
lc
u
lated
b
ased
o
n
th
ese
f
o
u
r
f
ac
to
r
s
.
W
ith
th
i
s
av
ailab
le
in
f
o
r
m
atio
n
,
th
e
k
n
o
w
led
g
e
b
as
e
is
b
u
ild
.
Am
o
n
g
all
av
ai
lab
le
clo
u
d
s
,
th
e
m
o
s
t
p
r
ef
er
r
ed
n
clo
u
d
s
ar
e
tak
e
n
an
d
th
e
n
e
m
p
ir
ical
l
y
i
n
ter
c
h
a
n
g
e
w
i
th
th
e
s
elec
ted
s
et
f
o
r
g
etti
n
g
i
m
p
r
o
v
ed
r
esu
lt.
T
h
ese
f
o
u
r
p
ar
a
m
eter
s
ar
e
in
f
lu
e
n
ce
t
h
e
e
f
f
ec
ti
v
e
n
e
s
s
o
f
clo
u
d
s
er
v
ice.
So
d
i
f
f
er
e
n
t
w
ei
g
h
ts
f
o
r
ea
c
h
p
ar
am
eter
i
s
n
ee
d
to
b
e
p
r
o
v
id
ed
d
u
e
to
th
e
v
ar
iatio
n
i
n
s
ize
o
f
a
f
ile
e
f
f
ec
ts
o
p
er
atio
n
p
r
ice.
A
l
g
o
r
i
t
h
m
1
:
E
m
p
i
r
i
c
a
l
M
o
d
e
l
f
o
r
D
a
t
a
h
o
st
i
n
g
I
n
p
u
t
:
F
i
l
e
si
z
e
S
,
A
c
c
e
ss fr
e
q
u
e
n
c
y
C
r
O
u
t
p
u
t
:
m
i
n
_
c
o
st
C
s
m,
X
se
t
o
f
t
h
e
i
d
e
n
t
i
f
i
e
d
c
l
o
u
d
se
r
v
i
c
e
s
C
sm ←
i
n
f
i
n
i
t
y
;
X
←
{}
L
s ←
so
r
t
(
P
i
)
n
o
r
mal
i
z
e
d
α
a
i
+
β(
h
i
g
h
t
o
l
o
w
)
f
o
r
n
=
2
t
o
n
d
o
G
s ←
t
h
e
f
i
r
s
t
n
c
l
o
u
d
s o
f
L
s
G
c
←
L
s −
G
s
f
o
r
m
=
1
t
o
n
d
o
A
c
u
r
←
A
v
a
i
l
a
b
i
l
i
t
y
(
G
s
)
i
f
A
c
u
r
≥
A
t
h
e
n
C
c
u
r
←
mi
n
(
c
o
st
)
i
f
C
c
u
r
<
C
sm
t
h
e
n
C
sm ←
C
c
u
r
e
n
d
e
l
s
e
G
s ←
so
r
t
(
G
s,a
i
)
[
l
o
w
t
o
h
i
g
h
]
G
c
←
so
r
t
(
G
c
,
P
i
)
[
l
o
w
t
o
h
i
g
h
]
f
o
r
i
=
1
t
o
n
d
o
f
l
a
g
←
0
f
o
r
k
=
1
t
o
N
-
n
d
o
I
F
G
c
[
k
]
>
a
G
s
[
i
]
,
T
H
EN
sw
a
p
(
G
s
[
i
]
,
G
c
[
k
]
)
f
l
a
g
←
1
b
r
e
a
k
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8708
I
J
E
C
E
Vo
l
.
7
,
No
.
4
,
A
u
g
u
s
t
2
0
1
7
:
2
1
7
6
–
2
1
8
2
2180
e
n
d
e
n
d
i
f
f
l
a
g
=
0
t
h
e
n
b
r
e
a
k
e
n
d
A
c
u
r
←
a
v
a
i
l
a
b
i
l
i
t
y
(
G
s
)
i
f
A
c
u
r
≥
A
t
h
e
n
C
c
u
r
←
mi
n
(
c
o
st
)
i
f
C
c
u
r
<
C
sm
t
h
e
n
C
sm
←
C
c
u
r
X
←
G
s
e
n
d
b
r
e
a
k
e
n
d
e
n
d
e
n
d
e
n
d
e
n
d
r
e
t
u
r
n
C
sm,
X
6.
ST
O
RA
G
E
M
O
DE
S
T
h
e
s
to
r
ag
e
m
o
d
es
i
n
clo
u
d
s
er
v
ice
ar
e
lab
eled
as
“
co
ld
”,
“
co
o
l”,
“w
ar
m
”,
“h
o
t”
ac
co
r
d
in
g
to
f
ile
tr
an
s
itio
n
f
r
eq
u
e
n
c
y
.
Fo
r
ex
a
m
p
le,
th
e
s
to
r
a
g
e
m
o
d
e
w
ill
b
e
ch
an
g
i
n
g
f
r
o
m
“h
o
t”
to
“
co
l
d
”
ac
co
r
d
in
g
to
th
e
ac
ce
s
s
f
r
eq
u
e
n
c
y
lev
e
l
r
ed
u
ce
s
b
elo
w
t
h
e
th
r
es
h
o
ld
v
al
u
e
le
ad
s
to
th
e
s
av
e
m
o
n
e
y
.
T
h
e
v
alu
e
is
d
eter
m
in
ed
b
y
t
h
e
ex
i
s
ti
n
g
p
r
ices,
w
h
ich
v
ar
ies
f
r
o
m
ti
m
e
to
ti
m
e.
T
h
e
d
if
f
er
e
n
t
s
to
r
ag
e
m
o
d
e
co
s
t
p
r
o
v
id
e
d
b
y
d
if
f
er
en
t
v
en
d
o
r
s
i
n
I
n
d
ia
is
s
h
o
w
n
i
n
T
ab
le
3
.
T
ab
le
3
.
C
o
s
ts
o
f
d
if
f
er
en
t s
to
r
ag
e
m
o
d
es
A
maz
o
n
W
e
b
S
e
r
v
i
c
e
M
i
c
r
o
so
f
t
A
z
u
r
e
G
o
o
g
l
e
C
l
o
u
d
S
t
o
r
a
g
e
H
o
t
1
.
9
9
1
.
9
9
1
.
7
2
W
a
r
m
1
.
5
9
1
.
5
9
1
.
3
2
C
o
o
l
0
.
8
3
0
.
6
6
0
.
6
6
C
o
l
d
0
.
4
6
--
--
T
h
e
s
to
r
ag
e
m
o
d
e
i
s
d
e
f
in
ed
b
ased
o
n
t
w
o
d
i
m
en
s
io
n
s
li
k
e
f
ile_
s
ize
a
n
d
ac
ce
s
s
_
f
r
eq
u
en
c
y
.
T
h
e
ea
ch
s
to
r
ag
e
m
o
d
e
h
as
r
e
s
p
ec
tiv
e
p
air
o
f
f
ile_
s
ize
a
n
d
r
ea
d
_
co
u
n
t,
b
u
t
f
o
r
d
if
f
er
en
t
p
air
s
t
h
e
s
to
r
ag
e
m
o
d
es
ar
e
s
a
m
e.
Hen
ce
ex
p
lici
t
b
o
u
n
d
ar
ies
b
et
w
ee
n
d
if
f
er
en
t
s
to
r
ag
e
m
o
d
e
s
ar
e
ex
is
ted
.
Ho
w
e
v
er
,
th
e
c
h
an
g
e
o
f
th
e
s
to
r
ag
e
m
o
d
e
g
e
n
er
ates
t
h
e
co
s
t
an
d
t
h
e
b
an
d
w
id
th
is
m
o
r
e
ex
p
en
s
i
v
e
th
a
n
s
to
r
ag
e
s
p
ac
e
f
o
r
clo
u
d
s
to
r
ag
e
s
er
v
ices.
Fo
r
ex
a
m
p
le,
“
t
h
e
co
s
t o
f
o
n
e
r
ea
d
ac
ce
s
s
o
f
a
f
ile
ca
n
af
f
o
r
d
th
e
f
ile
to
b
e
s
to
r
ed
f
o
r
ar
o
u
n
d
f
o
u
r
m
o
n
t
h
s
w
it
h
n
o
r
ea
d
ac
ce
s
s
”,
t
h
u
s
,
d
ea
li
n
g
s
to
r
a
g
e
m
o
d
e
tr
a
n
s
i
tio
n
i
s
m
u
c
h
ca
r
e
f
u
l
a
n
d
it
a
f
f
ec
ts
t
h
e
s
to
r
a
g
e
co
s
t.
T
h
e
i
m
p
le
m
en
ta
tio
n
o
f
s
to
r
ag
e
m
o
d
e
tr
an
s
it
io
n
p
r
o
ce
s
s
is
to
g
et
th
e
d
ata
f
r
o
m
t
h
e
p
r
o
x
y
clo
u
d
s
w
h
er
e
t
h
e
d
ata
i
s
p
h
y
s
icall
y
s
t
o
r
ed
,
an
d
k
ee
p
i
n
g
t
h
e
n
e
w
l
y
s
elec
ted
clo
u
d
s
w
it
h
n
e
w
l
y
as
s
i
g
n
ed
m
o
d
e
o
f
s
to
r
ag
e.
T
h
e
b
an
d
w
id
t
h
an
d
ac
ce
s
s
o
p
er
atio
n
s
li
k
e
g
et,
p
u
t
an
d
d
elete
ar
e
p
ar
am
eter
s
f
o
r
i
m
p
le
m
e
n
tat
io
n
.
T
h
e
o
p
e
r
atio
n
d
elete
an
d
in
g
o
i
n
g
b
a
n
d
w
id
th
ar
e
co
s
t f
r
ee
h
en
ce
th
e
tr
a
n
s
i
ti
o
n
c
o
s
t T
is
co
llected
o
n
o
u
tg
o
in
g
b
a
n
d
w
id
th
,
p
u
t
an
d
g
e
t
o
p
er
atio
n
s
.
Hen
ce
o
u
t
g
o
in
g
b
a
n
d
w
id
th
is
m
o
r
e
e
x
p
en
s
i
v
e
t
h
a
n
s
to
r
ag
e
s
p
ac
e.
T
h
e
tr
an
s
itio
n
co
s
t
i
s
d
ec
id
ed
o
n
m
o
d
e
o
f
s
to
r
ag
e.
S
o
,
th
e
in
eq
u
ali
t
y
i
n
co
s
ts
w
i
ll r
is
es:
M
f
>
M
P
+ T
(1
)
W
h
er
e
M
f
i
s
t
h
e
p
r
ev
io
u
s
s
to
r
ag
e
m
o
d
e
co
s
t
a
n
d
M
p
i
s
t
h
e
n
e
w
s
to
r
ag
e
m
o
d
e
co
s
t
ac
co
r
d
in
g
to
b
ef
o
r
e
a
n
d
af
ter
tr
a
n
s
it
io
n
.
T
h
ese
t
w
o
ar
e
ca
lcu
lated
b
y
co
n
s
id
er
in
g
r
ea
d
f
r
eq
u
e
n
c
y
p
r
o
v
id
ed
.
C
o
n
s
id
er
,
th
e
f
ile
s
ize
a
s
S,
ti
m
e
p
er
io
d
t a
n
d
r
ea
d
f
r
eq
u
en
c
y
C
r
,
s
et
i
n
itial
ti
m
e
t a
n
d
th
e
n
ca
lcu
la
te
M
f
an
d
M
p
.
Fro
m
E
q
u
atio
n
(
1
)
,
th
e
n
e
w
s
t
o
r
ag
e
m
o
d
e
w
i
ll
af
f
ec
t
s
t
h
e
tr
an
s
it
io
n
co
s
t
ca
n
b
e
o
b
s
er
v
ed
.
Her
e
ti
m
e
p
er
io
d
t
o
f
ea
ch
tr
an
s
itio
n
i
s
w
it
h
i
n
o
n
e
m
o
n
t
h
.
T
h
en
p
r
ed
i
ct
th
e
co
s
t
o
f
s
to
r
ag
e
m
o
d
e
f
o
r
ea
ch
f
ile
u
s
in
g
its
p
r
ed
icted
f
r
eq
u
en
c
y
o
f
ac
ce
s
s
w
it
h
i
n
th
e
t
i
m
e
i
n
ter
v
al
t.
I
f
t
h
e
s
to
r
ag
e
m
o
d
e
i
s
d
if
f
er
en
t
f
r
o
m
t
h
e
ea
r
lier
o
n
e
an
d
it
u
s
es
E
q
u
atio
n
(
1
)
ag
ai
n
,
m
ea
n
s
n
ee
d
o
f
c
h
an
g
i
n
g
t
h
e
s
to
r
ag
e
m
o
d
e
o
f
th
e
f
ile.
T
h
e
k
n
o
w
led
g
e
b
ase
o
f
s
to
r
ag
e
m
o
d
e
is
p
r
e
ca
lcu
late
d
m
o
d
es
ac
co
r
d
in
g
to
t
h
e
n
o
.
o
f
r
ea
d
s
a
n
d
w
r
ite
s
,
w
h
ic
h
c
an
b
e
ca
lc
u
lated
i
n
ad
v
an
ce
,
b
ec
au
s
e
it is
o
n
l
y
af
f
ec
ted
b
y
t
h
e
co
s
t o
f
s
to
r
ag
e
m
o
d
e
w
it
h
av
ailab
le
clo
u
d
s
o
u
r
c
es a
n
d
t
h
eir
p
r
icin
g
p
o
licies
ac
co
r
d
in
g
to
ti
m
el
y
c
h
an
g
es.
Fo
r
f
i
n
alizi
n
g
th
e
s
to
r
ag
e
m
o
d
e
o
f
ea
ch
f
i
le,
th
e
d
eter
m
in
a
n
t
p
ar
a
m
eter
s
Evaluation Warning : The document was created with Spire.PDF for Python.
I
J
E
C
E
I
SS
N:
2
0
8
8
-
8708
I
n
tellig
en
t H
yb
r
id
C
lo
u
d
Da
ta
Ho
s
tin
g
S
ervices wit
h
E
ffe
ctiv
e
C
o
s
t a
n
d
Hig
h
….
(
Ma
d
h
u
B
a
la
Myn
en
i
)
2181
lik
e
ac
ce
s
s
f
r
eq
u
e
n
c
y
a
n
d
t
h
e
s
ize
o
f
t
h
e
f
ile
h
a
v
i
n
g
th
e
s
a
m
e
m
o
d
e.
P
er
io
d
ically
t
h
e
a
v
ail
ab
le
clo
u
d
s
o
u
r
ce
s
lis
t
w
ill
v
ar
y
b
ased
o
n
t
h
e
a
v
ailab
ilit
ie
s
,
u
p
d
ated
p
r
ices,
s
tr
ik
e
o
u
t
d
u
e
to
p
er
f
o
r
m
a
n
c
e
is
s
u
e,
a
n
d
n
e
w
l
y
av
ailab
le
clo
u
d
s
er
v
ices
ap
p
e
ar
.
T
h
e
u
p
d
ated
clo
u
d
s
er
v
ic
es
d
ata
w
i
ll
b
e
in
p
u
t
to
th
e
A
l
g
o
r
ith
m
2
an
d
it
r
etu
r
n
s
t
h
e
d
etailed
tr
an
s
itio
n
p
r
o
ce
s
s
.
A
l
g
o
r
ith
m
2
: D
ata
Sto
r
ag
e
m
o
d
e
tr
an
s
itio
n
I
n
p
u
t:
Av
ai
lab
le
C
lo
u
d
s
er
v
ic
es
li
s
t
T
;
it
h
f
ile
’
s
s
to
r
ag
e
m
o
d
e
M[
i]
,
cu
r
r
en
t
ac
ce
s
s
f
r
eq
u
en
c
y
R
[
i]
,
f
ile
s
ize
S[i]
Ou
tp
u
t: v
o
i
d
T
Size
←
Di
m
en
s
io
n
o
f
tab
le
T
T
R
ea
d
←
A
cc
ess
f
r
eq
u
e
n
c
y
o
f
T
f
o
r
ea
ch
i
d
o
f
o
r
j
in
len
(
T
Size)
if
S[i]
≥
T
Size
[
j
]
th
en
d
S ←
j
else
b
r
ea
k
en
d
en
d
f
o
r
j
in
len
(
T
R
ea
d
)
if
R
[
i]
≥
T
R
ea
d
[
j
]
th
en
d
R
←
j
else
b
r
ea
k
en
d
en
d
if
M[
i]
=
T
[
d
S][
d
R
]
th
en
T
←
P
r
e
d
icted
_
co
s
t(
M[
i]
)
if
M[
i]
>
T
[
d
S][
d
R
]
+
T
th
en
t
r
an
s
it f
r
o
m
M[
i]
to
T
[
d
S][
d
R
]
en
d
en
d
e
nd
7.
RE
SU
L
T
S AN
D
D
I
SCU
SS
I
O
NS
7
.
1
.
E
v
a
lua
t
io
n o
f
H
y
brid Clo
ud
No
w
a
d
a
y
,
a
lo
t
o
f
v
ar
iet
y
o
f
in
f
o
r
m
atio
n
s
to
r
ag
e
c
lo
u
d
s
u
p
p
lier
s
is
p
r
o
v
id
i
n
g
t
h
e
s
er
v
ices
in
k
ee
p
in
g
w
it
h
s
p
ec
i
f
ic
r
eg
io
n
s
lik
e
Am
er
ica,
Asi
a,
an
d
s
o
m
eti
m
es
m
a
n
y
i
n
f
o
r
m
atio
n
ce
n
ter
s
ar
e
s
i
m
ilar
o
r
co
m
p
lete
l
y
d
if
f
er
e
n
t
clo
u
d
s
u
p
p
lier
s
.
T
h
er
ef
o
r
e
all
th
e
in
f
o
r
m
atio
n
ce
n
ter
s
w
ill
b
e
ac
ce
s
s
ed
b
y
th
e
u
s
er
w
it
h
in
a
v
er
y
b
o
u
n
d
ed
r
eg
io
n
,
ev
en
t
h
e
u
s
er
ca
n
ex
p
er
tis
e
c
o
m
p
lete
l
y
d
i
v
er
s
e
p
er
f
o
r
m
an
ce
p
r
o
b
lem
s
.
T
h
e
p
o
ten
tial
o
f
s
o
m
e
i
n
f
o
r
m
atio
n
c
en
ter
s
is
i
n
cr
ed
ib
l
y
lo
w
w
h
er
ea
s
o
th
er
s
ar
e
also
u
n
e
n
d
u
r
ab
l
e.
T
h
is
f
r
a
m
e
w
o
r
k
ch
o
o
s
es
clo
u
d
s
er
v
ices
f
o
r
h
o
s
tin
g
in
f
o
r
m
a
tio
n
f
r
o
m
all
t
h
e
e
x
is
t
in
g
clo
u
d
s
t
h
at
co
m
e
ac
r
o
s
s
th
e
p
er
f
o
r
m
a
n
ce
clai
m
,
m
ea
n
s
th
e
y
s
u
p
p
l
y
ac
ce
p
tab
le
o
u
t
tu
r
n
an
d
p
o
ten
t
ial
o
n
ce
th
e
y
d
o
n
'
t
s
ee
m
to
b
e
in
o
u
tag
e.
T
h
e
p
er
f
o
r
m
a
n
ce
o
f
th
e
s
er
v
ice
is
n
o
t
ass
u
r
ed
b
y
s
to
r
ag
e
m
o
d
e.
Sin
ce
it
'
s
n
o
t
a
h
id
d
en
m
et
h
o
d
,
it
ca
n
r
ed
u
ce
th
e
i
m
p
o
r
tan
ce
o
f
m
u
ltip
le
tr
an
s
iti
o
n
s
an
d
b
atch
w
i
s
e
i
m
p
le
m
e
n
t
atio
n
.
7
.
2
.
Da
t
a
s
et
s
T
h
e
d
atasets
ar
e
co
llected
f
r
o
m
m
u
ltip
le
d
ata
ce
n
ter
s
li
k
e
a
m
az
o
n
,
w
i
n
d
o
w
s
az
u
r
e
a
n
d
g
o
o
g
le
clo
u
d
.
Fro
m
ea
ch
l
in
e
o
f
th
e
d
ata
co
n
tai
n
s
f
ile
ac
ce
s
s
r
ec
o
r
d
w
it
h
f
ile
ac
ce
s
s
ti
m
es
ta
m
p
,
f
ile
n
a
m
e,
s
ize
o
f
th
e
f
i
le,
an
d
o
p
er
atio
n
m
o
d
es
lik
e
g
et,
p
u
t
an
d
d
elete
.
Fro
m
s
to
r
ag
e
m
o
d
e
tab
le,
th
e
p
r
o
v
i
s
io
n
o
f
c
lo
u
d
w
il
l
ass
e
s
s
ed
.
W
ith
to
tall
y
d
if
f
er
en
t
f
ile
s
iz
es
v
ar
ied
f
r
o
m
o
n
e
co
m
p
u
ter
m
e
m
o
r
y
u
n
it
to
o
n
e
GB
an
d
d
if
f
er
en
t
b
r
o
w
s
e
co
u
n
t
s
v
ar
ied
f
r
o
m
ze
r
o
to
a
h
u
n
d
r
ed
w
it
h
t
h
e
s
tep
o
f
ze
r
o
.
1
s
q
u
ar
e
m
ea
s
u
r
e
ac
cu
s
to
m
ed
p
r
o
d
u
ce
th
e
m
e
n
tal
o
b
j
ec
t o
f
s
to
r
ag
e
m
o
d
es b
y
m
i
s
tr
ea
t
m
e
n
t r
u
le
o
n
e.
T
h
e
k
n
o
wled
g
eb
ase
in
cl
u
d
es t
h
e
f
ile
b
r
o
w
s
e.
7
.
3
.
M
o
net
a
ry
C
o
s
t
T
h
e
m
o
n
etar
y
co
s
t o
f
d
ata
h
o
s
tin
g
in
clo
u
d
s
in
c
lu
d
es b
an
d
w
i
d
th
,
s
to
r
ag
e,
o
p
er
atio
n
an
d
tr
an
s
it
io
n
co
s
ts
.
So
s
elec
tio
n
o
f
clo
u
d
s
v
er
y
r
a
n
d
o
m
l
y
d
o
es
n
o
t stric
t
l
y
in
cr
ea
s
e
t
h
e
co
s
t a
cc
o
r
d
in
g
to
th
e
av
ai
lab
ilit
y
o
f
s
er
v
ice.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8708
I
J
E
C
E
Vo
l
.
7
,
No
.
4
,
A
u
g
u
s
t
2
0
1
7
:
2
1
7
6
–
2
1
8
2
2182
8.
CO
NCLU
SI
O
N
T
h
is
p
ap
er
p
r
o
p
o
s
es,
an
i
n
tel
lig
e
n
t
ap
p
r
o
ac
h
f
o
r
d
ata
h
o
s
t
in
g
i
n
h
y
b
r
id
clo
u
d
e
n
v
ir
o
n
m
en
t
w
it
h
ef
f
ec
tiv
e
co
s
t
an
d
a
v
ailab
ilit
y
ar
e
th
e
m
aj
o
r
f
ea
tu
r
es.
T
h
is
f
r
a
m
e
w
o
r
k
id
e
n
ti
f
ies
t
w
o
k
e
y
co
m
p
o
n
en
ts
a
s
b
an
d
w
id
t
h
an
d
k
e
y
ac
ce
s
s
m
o
d
es
to
im
p
ac
t
th
e
d
ata
h
o
s
ti
n
g
in
h
y
b
r
id
clo
u
d
.
T
h
e
em
p
ir
ical
s
o
lu
tio
n
co
n
s
id
er
s
th
e
m
aj
o
r
p
ar
am
eter
s
asb
a
n
d
w
id
t
h
,
s
to
r
ag
e
s
p
ac
e
r
eq
u
ir
ed
,
o
p
er
atio
n
al
p
r
ices
an
d
i
n
d
icato
r
s
o
f
clo
u
d
p
er
f
o
r
m
a
n
ce
.
So
d
if
f
er
e
n
t
w
e
ig
h
ts
f
o
r
ea
ch
p
ar
a
m
eter
is
n
ee
d
to
b
e
p
r
o
v
id
ed
d
u
e
to
th
e
v
ar
iatio
n
o
f
a
f
ile
ef
f
ec
ts
o
p
er
atio
n
co
s
t.
T
h
e
s
to
r
ag
e
m
o
d
e
is
o
n
e
m
o
r
e
f
ac
to
r
to
in
f
l
u
en
ce
t
h
e
av
ailab
ilit
y
a
n
d
o
p
er
atio
n
al
co
s
t
o
f
clo
u
d
s
er
v
ice.
T
h
e
p
r
o
p
o
s
ed
alg
o
r
ith
m
s
e
n
s
u
r
es
th
e
in
tell
ig
en
t
w
a
y
o
f
d
ata
h
o
s
t
in
g
ac
co
r
d
in
g
to
u
s
er
n
ee
d
s
lik
e
s
to
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ag
e
m
o
d
e
an
d
o
th
er
a
v
ailab
le
p
ar
a
m
eter
s
f
o
r
ef
f
ec
ti
v
e
o
p
er
atio
n
al
co
s
t a
n
d
h
i
g
h
av
ailab
ilit
y
o
f
u
s
er
s
.
RE
F
E
R
E
NC
E
S
[
1
]
Ma
Y
,
et
al.
,
“
A
n
E
n
s
emb
le
o
f
R
ep
lica
tio
n
a
n
d
E
r
a
s
u
r
e
C
o
d
es
fo
r
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ile
S
yste
ms
,
”
i
n
I
NFO
C
OM
.
I
E
E
E
,
2
0
1
3
.
[
2
]
L
i
u
H
,
et
al.
,
“
Op
timiz
in
g
C
o
s
t
a
n
d
P
erfo
r
ma
n
ce
fo
r
C
o
n
ten
t
Mu
lti
h
o
min
g
,
”
SIG
C
OM
M’
1
2
,
2
0
1
2
;
371
-
382.
[
3
]
Ma
n
s
o
u
r
i
Y,
et
al.
,
“
R
.
:
B
r
o
ke
r
in
g
a
lg
o
r
ith
ms
fo
r
o
p
ti
miz
in
g
th
e
a
va
il
a
b
ilit
y
a
n
d
co
s
t
o
f
s
to
r
a
g
e
s
ervices
,”
I
n
:
P
r
o
ce
ed
in
g
s
o
f
th
e
2
0
1
3
I
E
E
E
I
n
ter
n
at
io
n
al
C
o
n
f
er
en
ce
o
n
C
o
m
p
u
ti
n
g
T
ec
h
n
o
lo
g
y
an
d
Scien
ce
,
W
as
h
in
g
to
n
,
US
A
,
2013;
1
;
581
–
5
8
9
.
[
4
]
P
ap
az
o
g
lo
u
M
P
,
et
al.
,
“
B
lu
e
p
r
in
tin
g
t
h
e
C
lo
u
d
,
”
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E
E
E
I
n
tern
et
C
o
mp
u
tin
g
,
2
0
1
1
;7
4
-
79.
[
5
]
T
h
an
d
ee
s
w
ar
a
n
R
,
et
al.
,
“
Sec
u
r
ed
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l
ti
-
Vir
tu
a
l
I
n
f
r
astru
ct
u
r
e
w
it
h
I
m
p
r
o
v
ed
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er
f
o
r
m
a
n
ce
”,
C
yb
ern
etics
a
n
d
I
n
fo
r
ma
tio
n
Tech
n
o
lo
g
ies
,
1
2
(
2
)
;
11
-
2
2
.
[
6
]
Or
tiz
S J
r
,
“
T
h
e
P
r
o
b
lem
w
it
h
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lo
u
d
C
o
m
p
u
ti
n
g
Sta
n
d
ar
d
izatio
n
,
”
C
o
mp
u
ter
,
2
0
1
1
; 4
4
(
7
)
;
1
3
-
1
6
.
[
7
]
Ma
d
h
u
B
a
la
M
y
n
e
n
i,
et
al.
,
“
C
o
r
r
ela
ted
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lu
s
te
r
-
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a
s
ed
I
mp
u
ta
tio
n
fo
r
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ea
tmen
t
o
f
Mi
s
s
in
g
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a
lu
es
,
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r
o
ce
e
d
in
g
s
o
f
th
e
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s
t
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n
te
r
n
atio
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al
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o
n
f
er
e
n
ce
o
n
C
o
m
p
u
tat
io
n
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l
I
n
tell
ig
e
n
ce
a
n
d
I
n
f
o
r
m
a
tics
i
n
:
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d
v
an
ce
s
in
I
n
telli
g
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t S
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te
m
s
a
n
d
C
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m
p
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ti
n
g
(
A
I
S
C
)
,
2
0
1
7
;
5
0
7
;
1
7
1
-
178.
[
8
]
Ma
d
h
u
B
ala
M
y
n
e
n
i
et
al.
,
“Co
m
p
ar
ativ
e
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al
y
s
is
o
n
S
ce
n
e
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m
a
g
e
C
lass
if
ica
tio
n
u
s
in
g
Selecte
d
H
y
b
r
id
Featu
r
es,”
I
n
tern
a
tio
n
a
l J
o
u
r
n
a
l
o
f Co
mp
u
ter A
p
p
l
ic
a
tio
n
s
,
2
0
1
3
;
63
;
0
9
7
5
-
8887
.
[
9
]
Qu
a
n
lu
Z
h
a
n
g
,
et
a
l.,
“CH
AR
M:
AC
o
s
t
-
E
f
f
ic
ien
t
Mu
l
t
i
-
C
lo
u
d
Data
Ho
s
tin
g
Sc
h
e
m
e
w
it
h
Hi
g
h
Av
ailab
ilit
y
”,
I
E
E
E
Tr
a
n
s
a
cti
o
n
s
o
n
C
lo
u
d
co
mp
u
tin
g
,
2
0
1
5
;
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(
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)
.
[
1
0
]
L
i
x
i
n
g
X
u
e
,
et
al.
,
“
D
C
R
:
Do
u
b
le
C
o
mp
o
n
en
t
R
a
n
kin
g
fo
r
B
u
ild
in
g
R
elia
b
le
C
lo
u
d
A
p
p
lica
tio
n
s
,
”
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E
L
KOM
NI
K
A
,
2
0
1
6
;
1
4
(
4
);
1565
-
1
5
7
4
.
[
1
1
]
Nar
esh
V
u
r
u
k
o
n
d
a
et
al.
,
“A
Secu
r
ed
C
lo
u
d
Data
Sto
r
ag
e
w
it
h
A
cc
e
s
s
P
r
iv
ila
g
e
s
,
”
I
n
d
o
n
esia
n
Jo
u
r
n
a
l
o
f E
lectrica
l E
n
g
in
ee
r
in
g
a
n
d
I
n
fo
r
ma
tics
,
2
0
1
6
;
4
(
3
)
;
219
-
2
2
4
.
[
1
2
]
Saik
ee
r
t
h
an
a
R
et
al.
,
“
Sec
u
r
e
Data
Sto
r
ag
e
an
d
Data
R
etr
iev
al
i
n
C
lo
u
d
Sto
r
ag
e
u
s
i
n
g
C
ip
h
er
P
o
lic
y
A
ttrib
u
te
b
ased
E
n
cr
y
p
tio
n
,
”
I
n
d
ia
n
J
o
u
r
n
a
l
o
f S
cien
ce
a
n
d
Tech
n
o
lo
g
y
,
2
0
1
5
;
8
(
9
)
;
3
1
8
-
3
2
5
.
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