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Table 10 Policy-wise segments and number of anomalies

From: Ant colony optimization-based firewall anomaly mitigation engine

Policy no.

No of rules

No. of segments generated after segmentation

Time taken (s)

No of shadow anomalies

No of generalization anomalies

No of correlation anomalies

No of redundant rules

Policy 1

14

18

0.016

3

1

4

2

Policy 2

35

35

0.013

7

6

3

4

Policy 3

55

64

0.064

9

8

6

6

Policy 4

171

171

0.482

29

29

8

35

Policy 5

325

344

0.846

45

54

20

49

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