信息网络安全 ›› 2015, Vol. 15 ›› Issue (9): 58-61.doi: 10.3969/j.issn.1671-1122.2015.09.014

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一种基于模糊粗糙集的网络态势评估方法研究

范渊, 刘志乐, 王吉文()   

  1. 杭州安恒信息技术有限公司, 浙江杭州 310051
  • 收稿日期:2015-07-15 出版日期:2015-09-30 发布日期:2015-11-13
  • 作者简介:

    作者简介: 范渊(1975-),男,浙江,高级工程师,硕士,主要研究方向:计算机网络、信息安全;刘志乐(1973-),男,江苏,本科,主要研究方向:网络安全;王吉文(1987-),男,福建,硕士研究生,主要研究方向:人工智能。

Research on Network Situation Assessment Method Based on Fuzzy Rough Set

Yuan FAN, Zhi-le LIU, Ji-wen WANG()   

  1. DBAPP Security, Hangzhou Zhejiang 310051, China
  • Received:2015-07-15 Online:2015-09-30 Published:2015-11-13

摘要:

当今网络安全问题日趋严峻,了解网络当前安全状态,预测未来网络安全状态,有利于决策者及时做出准确的网络安全决策。在大规模复杂网络环境下,传统单一的网络管理方法并不能完全满足网络态势感知的需求,基于信息融合的网络态势感知成为未来发展的方向。由于网络态势评估是网络态势感知的核心环节,文章从网络态势感知的评估技术出发,针对态势评估中的粗糙集方法需要离散化而损失精度的缺点,引入模糊粗糙集技术,综合粗糙集和模糊集在处理不确定和模糊信息方面的优势,建立了网络安全态势评估的模糊粗糙集模型。实验证明,模型能提供较高的准确率,能为网络安全态势评估给出一个较为准确合理的评估结果。

关键词: 网络安全, 信息融合, 态势评估, 模糊粗糙集

Abstract:

Recently, the network security has become a severe issue. Obtaining the current network security status and predicting the future network security status may contribute to the decisions given by the decision makers. Under the large-scale and complex network environment, the traditional network management method cannot completely meet the demand of network situation awareness, and the network situation awareness based on information fusion has become the development direction of the future. Because network situation assessment is the core of network situation awareness, this paper introduces fuzzy rough set theory based on technologies of network security situation assessment, overcoming the defect that rough set method has to discretize while lost accuracy. By combining the advantages of the fuzzy set and rough set in dealing with uncertainty and vagueness of the data, this paper establishes a network security situation assessment model based on fuzzy rough set. The experiment shows that the model can provide high accuracy, and can provide a more accurate and reasonable evaluation results for the network security situation assessment.

Key words: network security, information fusion, situation assessment, fuzzy rough set

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