关键词: PC-LINMAP耦合赋权, 云理论, 入侵检测, 定性评测云发生器

Abstract: A new decision method to judge the damage degree of system intrusion possibility was proposed, which was based on PC-LINMAP and cloud theory. Firstly, the index of system performance will be given weighted values by using PC-LINMAP Theory, and these computed weighted values will be compared and fused with the values out from index of system performance under ideal conditions. Then this result of comprehensive assessment under ideal conditions could be obtained. Following next, the variation could be obtained by the comparison of real time's weighted fusion values with comprehensive assessment under ideal conditions at each specific moment. Finally, the Cloud Generator which is based on Cloud Theory combined with the above variation can achieve the qualitative description about the damage degree of current system intrusion possibility. The result of experiment shows that this method is effective.

Key words: PC-LINMAP, cloud theory, intrusion detection, qualitative evaluation cloud generator