Structural Damage Identification Based on Rough Sets and Artificial Neural Network

Table 7

Attribute set 1 rules generation for damage bay.

Damage case	Natural frequency			First order strain mode
	1	2	3	1	2	3	4	5	6	7	8	9	10	11	12
1	3	2	3	4	3	3	2	3	3	3	4	2	3	3	3	2
2	3	2	3	5	3	3	2	2	2	3	2	2	2	3	2	2
⋯	⋯	⋯	⋯	⋯	⋯	⋯	⋯	⋯	⋯	⋯	⋯	⋯	⋯	⋯	⋯	⋯
139	3	2	2	2	3	2	2	2	3	2	2	2	3	3	5	12
140	2	1	1	2	2	2	2	2	2	2	2	2	2	2	5	12