The research of network security Situation Awareness is important in improving the abilities of network detection) response to emergency and predicting the network security trend. In this paper, based on the conceptual model of situational awareness > three main problems with regard to network security situational awareness were discussed: extraction of the elements in the network security situation i comprehension of the network security situation and projection of future situation. The core issues to be resolved, and major algorithms as well as the advantages and disadvantages of various alg...
