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5
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Octo
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20
25
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1
3
3
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1334
h
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Kar
n
atak
a.
T
h
e
y
co
n
s
id
er
ed
th
r
ee
s
am
p
lin
g
lo
ca
tio
n
s
with
a
s
tu
d
y
p
er
io
d
o
f
3
m
o
n
th
s
d
u
r
in
g
p
r
e
-
m
o
n
s
o
o
n
s
ea
s
o
n
.
T
h
ey
in
v
esti
g
ated
a
to
tal
o
f
1
4
p
ar
a
m
eter
s
f
o
r
p
h
y
s
io
ch
e
m
ical
p
ar
am
eter
s
.
T
h
e
s
tu
d
y
p
r
o
v
es
th
at
th
e
s
o
d
iu
m
ad
s
o
r
p
tio
n
r
atio
(
SAR
)
v
alu
es
in
d
icate
th
at
b
o
th
th
e
w
ater
b
o
d
ies
b
elo
n
g
t
o
th
e
ex
ce
l
len
t
class
an
d
ar
e
s
u
itab
le
f
o
r
i
r
r
ig
atio
n
.
T
h
er
e
is
a
lo
t
o
f
r
esear
c
h
in
s
u
r
f
ac
e
wate
r
b
u
t
lim
ited
r
esear
ch
i
n
g
r
o
u
n
d
wate
r
q
u
ality
.
Giao
e
t
a
l.
[
1
8
]
d
is
cu
s
s
ed
g
r
o
u
n
d
wate
r
q
u
ality
in
th
e
Me
k
o
n
g
Delta
o
f
Vietn
am
u
s
in
g
m
u
ltiv
ar
iate
s
tatis
tical
m
eth
o
d
.
T
h
ey
in
v
esti
g
ated
a
to
tal
o
f
8
wate
r
q
u
ality
p
ar
am
eter
s
f
r
o
m
6
4
s
am
p
lin
g
p
o
i
n
ts
.
T
h
e
r
esu
lts
p
r
o
v
e
m
ix
ed
r
esu
lts
o
n
g
r
o
u
n
d
wate
r
q
u
ality
an
d
in
f
e
r
th
at
th
e
q
u
ality
o
f
g
r
o
u
n
d
wa
ter
d
ep
en
d
s
o
n
g
eo
l
o
g
ical
lo
c
atio
n
s
.
Ma
d
r
id
an
d
Z
ay
as
[
1
9
]
in
v
esti
g
ated
th
e
is
s
u
es r
elate
d
to
m
o
n
ito
r
in
g
p
r
ac
tices o
n
s
am
p
lin
g
in
p
r
esen
t scen
ar
io
s
.
T
h
is
wo
r
k
s
u
m
m
ar
izes th
e
p
o
in
ts
th
at
n
e
ed
to
b
e
c
o
n
s
id
er
ed
b
ef
o
r
e
s
am
p
lin
g
f
o
r
ch
em
ical
m
o
n
ito
r
i
n
g
.
Ah
m
e
d
et
a
l.
[
2
0
]
d
is
cu
s
s
is
s
u
es
an
d
s
tate
-
of
-
t
h
e
-
ar
t
tech
n
o
lo
g
ies
to
ad
d
r
e
s
s
wate
r
q
u
ality
.
T
h
is
wo
r
k
f
o
cu
s
s
es
o
n
th
e
ad
v
an
tag
es
o
f
m
o
d
er
n
tech
n
o
lo
g
ies
to
m
o
n
ito
r
an
d
ass
ess
wate
r
q
u
ality
.
T
h
ey
in
f
er
r
ed
th
at
th
e
latest
tech
n
o
lo
g
ies
ar
e
an
e
f
f
ec
tiv
e
alter
n
ativ
e
to
ex
p
e
n
s
iv
e
lab
o
r
io
u
s
m
a
n
u
al
an
al
y
s
is
.
Ho
wev
er
,
th
e
tr
ad
itio
n
al
m
eth
o
d
o
f
wate
r
q
u
ality
m
o
n
ito
r
in
g
is
n
o
t
f
ea
s
ib
le
as
th
e
r
esu
lts
ar
e
n
o
t
s
o
ac
cu
r
ate
an
d
it
is
a
tim
e
-
co
n
s
u
m
in
g
p
r
o
ce
s
s
to
d
eter
m
in
e
th
e
wate
r
q
u
ality
[
2
1
]
,
[
2
2
]
.
Nay
a
k
et
a
l.
[
2
3
]
ex
p
lo
r
ed
th
e
u
s
e
o
f
an
elec
tr
o
n
ic
n
o
s
e
s
y
s
tem
in
teg
r
ated
with
an
em
b
ed
d
e
d
p
er
ip
h
er
al
in
ter
f
ac
e
co
n
t
r
o
ller
(
PIC)
m
icr
o
co
n
t
r
o
ller
to
d
etec
t
an
d
q
u
an
tify
m
icr
o
b
i
al
co
n
tam
in
an
ts
.
T
h
ey
an
aly
ze
d
ass
es
s
m
en
t
o
f
wate
r
q
u
ality
b
y
d
etec
tin
g
m
icr
o
b
ial
wate
r
q
u
ality
u
s
in
g
ex
p
er
im
en
tal
s
etu
p
as
well
as
em
b
ed
d
e
d
s
y
s
tem
s
.
T
h
e
e
N
o
s
e
s
y
s
tem
was
f
o
u
n
d
to
b
e
ef
f
ec
tiv
e
in
d
etec
tin
g
an
d
ac
cu
r
ately
q
u
alif
y
in
g
th
e
m
icr
o
b
ial
co
n
tam
in
a
n
ts
,
s
p
ec
if
ically
co
lifo
r
m
g
r
o
u
p
o
f
b
ac
ter
ia.
No
wad
ay
s
r
esear
ch
er
s
ar
e
ca
r
r
y
in
g
o
u
t
n
ew
in
v
en
tio
n
s
f
o
r
d
eter
m
in
i
n
g
wate
r
q
u
alit
y
.
I
n
th
e
en
g
in
ee
r
in
g
f
ield
m
u
c
h
r
esear
ch
is
g
o
i
n
g
o
n
i
n
th
e
s
o
f
t
c
o
m
p
u
tin
g
f
ield
.
Du
e
to
m
ac
h
i
n
e
lear
n
in
g
en
g
in
ee
r
s
ca
n
d
esig
n
d
ev
ices
w
h
ich
c
o
m
m
u
n
icate
am
o
n
g
th
em
s
elv
es
an
d
ac
co
r
d
in
g
ly
an
aly
s
e
t
h
e
d
ata
in
tellig
en
tly
t
o
p
r
o
d
u
ce
th
e
wate
r
q
u
ality
.
T
h
is
p
ap
er
m
ain
ly
f
o
c
u
s
es
o
n
th
e
b
est
s
u
itab
le
m
et
h
o
d
f
o
r
c
o
m
p
u
tin
g
th
e
wate
r
q
u
ality
o
f
t
h
e
wate
r
b
o
d
ies
av
ailab
le
f
o
r
d
r
in
k
in
g
p
u
r
p
o
s
es.
T
h
e
p
r
o
p
o
s
ed
m
et
h
o
d
d
ea
ls
with
s
o
f
t
co
m
p
u
tin
g
tech
n
iq
u
es
ap
p
lied
to
v
ar
io
u
s
wate
r
p
ar
am
ete
r
s
to
ch
ec
k
f
o
r
d
r
in
k
in
g
wate
r
co
n
s
u
m
p
tio
n
p
u
r
p
o
s
es
lik
e
p
H,
tu
r
b
id
ity
,
tem
p
er
atu
r
e
,
an
d
d
is
s
o
lv
ed
o
x
y
g
en
.
2.
M
E
T
H
O
D
2
.
1
.
Study
a
re
a
S
i
t
u
a
te
d
a
l
o
n
g
t
h
e
A
r
a
b
i
a
n
S
e
a
c
o
a
s
t
li
n
e
i
n
Ka
r
n
a
t
a
k
a
,
U
d
u
p
i
d
i
s
t
r
i
ct
f
o
r
m
s
p
a
r
t
o
f
t
h
e
w
es
t
er
n
m
a
r
g
i
n
o
f
p
e
n
i
n
s
u
l
a
r
I
n
d
ia
a
n
d
i
s
t
o
p
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p
h
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c
a
l
l
y
d
e
li
n
e
a
t
e
d
f
r
o
m
th
e
i
n
t
e
r
i
o
r
b
y
t
h
e
p
r
o
m
i
n
e
n
t
W
es
t
e
r
n
G
h
a
ts
[
2
4
]
.
T
h
e
d
i
s
t
r
i
c
t
’
s
r
i
v
e
r
s
y
s
t
e
m
s
d
is
c
h
a
r
g
e
i
n
t
o
t
h
e
A
r
a
b
i
a
n
S
e
a
a
n
d
a
r
e
s
u
b
j
e
c
t
t
o
t
i
d
a
l
i
n
f
l
u
e
n
ce
o
v
e
r
c
o
n
s
i
d
e
r
a
b
l
e
d
i
s
t
a
n
c
es
i
n
la
n
d
[
2
5
]
,
[
2
6
]
.
C
o
n
t
e
m
p
o
r
a
r
y
w
a
t
e
r
m
a
n
a
g
e
m
e
n
t
p
r
a
c
t
i
c
es
,
n
o
t
a
b
l
y
s
p
r
i
n
k
l
e
r
i
r
r
i
g
a
t
i
o
n
,
a
r
e
w
i
t
n
es
s
i
n
g
i
n
c
r
e
a
s
e
d
a
d
o
p
ti
o
n
in
t
h
i
s
r
e
g
i
o
n
.
T
h
e
g
e
o
g
r
a
p
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i
c
a
l
l
o
c
a
t
i
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o
f
U
d
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p
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d
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s
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r
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ct
i
s
d
ep
i
c
t
e
d
i
n
Fi
g
u
r
e
1
.
Fig
u
r
e
1
.
L
o
ca
tio
n
m
a
p
co
asta
l a
r
ea
o
f
Kar
n
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a
,
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s
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alk
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,
an
d
tu
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id
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.
Fo
r
th
is
s
tu
d
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h
is
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ata
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r
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m
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h
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r
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u
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it
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r
in
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in
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an
d
class
1
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f
it f
o
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d
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)
.
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ab
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p
r
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e
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d
ar
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[
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P
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ho
d
T
h
e
m
ac
h
i
n
e
lear
n
i
n
g
alg
o
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ith
m
s
s
u
p
p
o
r
t v
ec
to
r
m
ac
h
in
es
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SVM)
,
class
if
icatio
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ec
is
io
n
tr
ee
,
lin
ea
r
d
is
cr
im
in
an
t
an
al
y
s
is
,
lo
g
is
tic
r
eg
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ess
io
n
,
Naïv
e
B
ay
es,
(
u
s
ed
f
o
r
v
ar
iab
le
im
p
o
r
tan
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ta
s
k
s
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r
eg
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ess
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n
d
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n
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r
est
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r
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k
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m
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s
ter
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g
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u
s
ed
f
o
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n
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p
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th
e
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p
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n
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y
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ix
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o
r
ith
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ataset
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am
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h
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f
lo
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th
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r
o
p
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ed
m
o
d
el
is
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r
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ted
i
n
Fig
u
r
e
2
.
Fig
u
r
e
2
.
Flo
wch
ar
t
o
f
th
e
p
r
o
p
o
s
ed
m
o
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el
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1336
3.
RE
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L
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S AN
D
D
I
SCU
SS
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N
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h
e
m
o
d
el
p
er
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n
ce
was
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alu
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u
s
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tical
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d
ices
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d
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r
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y
.
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ab
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e
o
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er
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tan
d
ar
d
d
ev
iatio
n
with
ty
p
e
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r
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co
r
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u
r
e
3
d
e
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ic
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er
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ith
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g
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e
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ian
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n
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est
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it
m
o
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el
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y
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u
r
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s
4
a
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5
,
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ates
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6
s
h
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o
r
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m
ic
ac
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r
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m
p
a
r
is
o
n
Fig
u
r
e
4
.
Data
s
et
d
is
tr
ib
u
tio
n
p
lo
t
: Bo
x
an
d
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h
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er
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m
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1337
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u
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5
.
Data
d
is
tr
ib
u
tio
n
p
lo
t: h
is
to
g
r
am
p
lo
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Fig
u
r
e
6.
C
o
v
a
r
ian
ce
p
lo
t
o
f
d
ata
d
is
tr
ib
u
tio
n
Am
o
n
g
all
t
h
e
alg
o
r
ith
m
s
e
v
alu
ated
,
th
e
d
ec
is
io
n
t
r
ee
a
ch
iev
ed
th
e
h
ig
h
est
ac
cu
r
ac
y
an
d
was
th
er
ef
o
r
e
s
elec
ted
f
o
r
f
u
r
th
er
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aly
s
is
.
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h
e
m
o
d
el
attain
e
d
a
m
ea
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s
q
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ar
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e
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r
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r
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f
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9
5
.
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h
e
d
etailed
class
if
icatio
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ep
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o
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ec
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io
n
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ee
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o
r
it
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m
is
p
r
esen
ted
i
n
T
ab
le
3
,
wh
ile
Fig
u
r
e
7
illu
s
tr
ates th
e
tr
en
d
an
aly
s
is
o
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th
e
1
4
wate
r
q
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ality
p
ar
am
eter
s
f
r
o
m
2
0
1
5
to
2
0
1
8
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
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6
9
3
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9
3
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NI
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n
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o
m
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l
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l.
23
,
No
.
5
,
Octo
b
e
r
20
25
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3
3
3
-
1
3
4
1
1338
T
ab
le
3
.
C
lass
if
icatio
n
r
ep
o
r
t
o
f
d
ec
is
io
n
tr
ee
al
g
o
r
ith
m
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l
a
s
si
f
i
c
a
t
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o
n
r
e
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t
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l
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8
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0
.
8
0
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8
3
15
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l
a
s
s
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1
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3
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i
c
r
o
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v
e
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a
g
e
0
.
9
9
0
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9
9
0
.
9
9
7
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8
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a
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g
e
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9
1
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8
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i
g
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t
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g
e
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9
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9
0
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9
9
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Fig
u
r
e
7
.
T
r
en
d
a
n
aly
s
is
o
f
wa
ter
q
u
ality
p
a
r
am
eter
s
Fig
u
r
e
s
8
an
d
9
s
h
o
w
th
e
tr
e
n
d
an
aly
s
is
o
f
th
e
class
v
ar
iab
le
f
lu
o
r
id
e
a
n
d
T
DS,
p
H
r
esp
ec
tiv
ely
.
T
h
e
s
tan
d
ar
d
v
alu
e
o
f
th
e
f
lu
o
r
id
e
,
T
DS
s
h
o
u
ld
b
e
ar
o
u
n
d
5
0
0
p
p
m
,
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d
p
H
s
h
o
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ld
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e
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th
a
n
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d
in
b
etwe
en
6
.
5
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8
.
5
r
esp
ec
tiv
ely
.
Fig
u
r
e
8
s
h
o
ws
th
e
v
io
lin
p
lo
t
o
f
th
e
class
,
f
lu
o
r
id
e,
an
d
T
DS,
p
H
v
ar
iab
le
r
esp
ec
tiv
ely
.
Fig
u
r
e
8
.
Plo
t o
f
tr
en
d
an
aly
s
i
s
,
class
v
ar
iab
le
an
d
f
lu
o
r
id
e
a
n
d
T
DS
an
d
pH
Evaluation Warning : The document was created with Spire.PDF for Python.
T
E
L
KOM
NI
KA
T
elec
o
m
m
u
n
C
o
m
p
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a
lity m
o
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ito
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o
mp
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tin
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tech
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es in
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i R
eg
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o
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, …
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K
r
is
h
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r
th
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1339
Fig
u
r
e
9
.
Vio
lin
p
lo
t
, c
lass
v
ar
iab
le
an
d
f
lu
o
r
id
e
a
n
d
T
DS
an
d
pH
Fo
r
clu
s
ter
in
g
,
wh
ic
h
is
also
u
s
ed
as
co
m
p
ar
is
o
n
al
g
o
r
ith
m
,
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is
u
s
ed
.
T
h
e
o
v
e
r
all
MSE
o
f
0
.
0
3
2
an
d
ac
cu
r
ac
y
o
f
0
.
9
7
4
6
4
5
w
as
ac
h
iev
ed
a
n
d
th
e
class
if
icatio
n
r
ep
o
r
t
o
f
th
e
d
ec
is
io
n
t
r
ee
alg
o
r
ith
m
is
as
s
h
o
wn
in
T
ab
le
4
.
Tab
le 4
.
Clas
sifica
ti
o
n
re
p
o
rt
o
f
KN
N alg
o
rit
h
m
C
l
a
s
si
f
i
c
a
t
i
o
n
r
e
p
o
r
t
P
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e
c
i
s
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o
n
R
e
c
a
l
l
F
1
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o
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e
S
u
p
p
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t
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l
a
s
s
0
0
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9
0
.
2
7
0
.
4
2
33
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l
a
s
s
1
0
.
9
8
1
0
.
9
9
9
5
3
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c
r
o
a
v
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r
a
g
e
0
.
9
7
0
.
9
7
0
.
9
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8
6
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a
c
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a
v
e
r
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g
e
0
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9
4
0
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4
0
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7
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6
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g
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v
e
r
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g
e
0
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9
7
0
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9
7
0
.
9
7
9
8
6
4.
CO
NCLU
SI
O
N
I
n
s
u
m
m
ar
y
,
u
s
in
g
th
e
h
is
to
r
i
ca
l
d
ata
o
f
th
e
wate
r
q
u
ality
o
f
5
0
0
0
s
am
p
les
o
f
1
4
W
QI
p
ar
am
eter
s
ar
e
tr
ain
ed
an
d
test
ed
u
s
in
g
d
if
f
er
en
t
s
o
f
t
co
m
p
u
tin
g
tech
n
iq
u
es
lik
e:
d
ec
is
io
n
tr
ee
alg
o
r
ith
m
with
SVM
,
KNN
c
lass
if
ier
,
lin
ea
r
d
is
cr
im
in
an
t
an
aly
s
is
,
Naïv
e
B
ay
es
class
if
ier
an
d
lo
g
is
tic
r
eg
r
ess
io
n
.
All
th
e
alg
o
r
ith
m
s
ar
e
tr
ain
ed
,
an
d
t
h
e
ac
cu
r
ac
y
o
f
th
e
alg
o
r
ith
m
is
ca
lcu
lated
.
Ou
t
o
f
all
th
ese
d
ec
is
io
n
tr
ee
alg
o
r
ith
m
s
h
ad
th
e
h
i
g
h
est
ac
cu
r
ac
y
an
d
h
en
ce
th
e
s
tu
d
y
is
f
u
r
th
er
ca
r
r
ied
o
u
t
with
d
ec
is
io
n
tr
ee
alg
o
r
ith
m
s
.
T
h
e
p
r
ed
ictio
n
ac
c
u
r
ac
y
(
0
.
9
9
)
o
f
th
is
alg
o
r
ith
m
an
d
MSE
(
0
.
0
5
)
is
ca
lcu
lated
wh
ich
is
f
o
u
n
d
to
b
e
f
ar
b
etter
th
an
o
th
er
alg
o
r
ith
m
s
.
T
r
en
d
an
aly
s
is
o
f
f
ew
im
p
o
r
tan
t w
ater
p
ar
am
eter
s
lik
e
p
H,
Flu
o
r
id
e
an
d
T
DS is p
lo
tted
wh
ich
s
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