Research on Network Security Risk Assessment Based on Group Consistency

The group unascertained measure method is used for network security risk assessment. First, the definition on group unascertained measure is proposed, and the group unascertained measure consistency is discussed; and then the adjustment method is presented for group inconsistency, namely the procedure of expert group reaching agreement is quickened up by the adverse judgment of each expert unascertained measure; Finally, the network security risk assessment results are obtained in the case of group unascertained measure consistency. By example analysis, the network system risk degree is obtained by the method and the experiment results are in accord with facts.