Security Evaluation of Situational Awareness in Cyberspace Based on Artificial Neural Network-Back Propagation

Table 3

Primary index safety grade.

Grade	High	Medium	Low
Threat index	0 ~ 0.375	0.375~0.685	0.675~1.0
Vulnerability index	0 ~ 0.275	0.275~0.585	0.585~1.0
Disaster tolerance index	0 ~ 0.375	0.485~0.785	0.785~1.0
Stability index	0 ~ 0.275	0.275~0.675	0.685~1.0