Abstract: In order to solve the increasingly serious security problems of the mobile Internet, a mobile Internet security situation assessment model based on improved Fuzzy Analytic Hierarchy Process（FAHP） is proposed after the research of the existing assessment algorithm. Firstly, a set of index system of mobile Internet security situation assessment is proposed after analyzing and researching security factors of mobile Internet; aiming at the uncertainty problem of index selection in the traditional model, this paper combines group AHP with entropy weight method and establishes multi-factors secondary assessment model. The experimental results show that the improved algorithm reflects the weights of the indexes more objectively and effectively, and the evaluate results are more accurate.

Key words: mobile Internet, index system, Fuzzy Analytic Hierarchy Process（FAHP）, situation assessment

摘要： 针对移动互联网领域日益严重的安全问题，通过对现有网络安全态势评估算法的研究，提出了一种基于改进模糊层次算法的移动互联网安全态势评估模型。首先对移动网络的安全态势要素进行分析和研究，提出了一种移动互联网安全态势评估指标体系；针对传统模糊层次模型中指标权重选择不确定性问题，采用群组层次分析法（Analytic Hierarchy Process，AHP）与熵权法相结合的方式，建立多因素二级评估模型。实验结果表明改进后的评估方法更加客观，有效地反映了指标权重，得到的评估结果更加准确、真实。

关键词: 移动互联网, 指标体系, 模糊层次法, 态势评估