Abstract
Concerning the problems of limited current network security situation assessment scope,single information source,higher time and space complexity and larger deviation of the accuracy,a method was put forward to construct general cube,which can be aware of the network security situation. The continuous situation factor data monitored can be pretreated by discretizing by "3σ rule"and aggregated in the general built cube,that fused into component security situation vertically and merged into the network security situation from component security situation using statistical methods horizontally. It can provide reliable reference to enhance network security. Finally,making full use of network data,the network security situation awareness model and algorithm proposed are verified and the experimental results show correctness of this method.
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