Geoscience Reference
In-Depth Information
Table 6.5 Accuracy analysis
Class
name
Classi
ed
total
Number
correct
Producers
correct
Users
accuracy
Accuracy
total
Accuracy study under dry condition
Very low
0
6
0
0.00
0.00
Low
4
3
0
75
0.00
Moderate
10
9
9
90
100.00
High
17
15
14
88.23
93.33
Very
high
18
17
15
94.44
88.24
Total
50
50
38
Overall classi
cation accuracy = 93.86 %
Overall Kappa statistics = 0.8919
Accuracy study under semi-saturated condition
Very low
0
6
0
0.00
0.00
Low
0
7
0
0.00
0.00
Moderate
13
10
9
76.92
90.00
High
20
16
16
80.00
100.00
Very
high
17
16
15
94.12
93.75
Total
50
50
40
Overall classification accuracy = 94.58 %
Overall Kappa statistics = 0.8919
Accuracy study under saturated condition
Very low
0
4
0
0.00
0.00
Low
0
7
5
0.00
71.43
Moderate
12
7
6
58.33
85.71
High
16
13
11
81.25
84.62
Very
high
22
16
16
72.73
100
Total
50
50
38
Overall classification accuracy = 85.44 %
Overall Kappa statistics = 0.8919
high landslide susceptibility shows the greater chances of landslide phenomena
(Fig.
6.3
). Extension of Very high landslide susceptibility under saturated condition
is due to saturation of slope materials and heavy pore water pressure.
6.5.4 Accuracy Result
The comparison between assumed true data and randomly selected data from the
classi
cation accuracy for dry, semi-satu-
rated and saturated conditions are 93.86, 94.58 and 84.44 % respectively.
ed image shows that the overall classi
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