Situation Element Extraction Based on Fuzzy Rough Set and Combination Classifier

Table 8

Attribute secondary reduction set.

Method	Number of attributes after reduction	Attribute collection
Attribute secondary reduction	26	Duration, service, flag, src_bytes, dst_bytes, land, wrong_fragment, hot, num_compromised, root_shell, su_attempted, num_shells, num_access_files, is_guest_login, count, srv_count, serror_rate, srv_rerror_rate, same_srv_rate, diff_srv_rate, srv_diff_host_rate, dst_host_count, dst_host_same_srv_rate, dst_host_diff_srv_rate, dst_host_same_src_port_rate, dst_host_rerror_rate