Table 4 Confusion matrix of KNN.

From: Identifying accident prone areas and factors influencing the severity of crashes using machine learning and spatial analyses

Model

Actual

Predicted

Class 0

Class 1

Class 2

Class 3

Sum

KNN

Class 0

20

0

0

0

20

Class 1

3

32

13

0

48

Class 2

0

18

19

3

40

Class 3

0

1

1

7

9

Sum

23

51

33

10

117

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