Risk analysis of information system based on variable precision rough set

doi:10.3724/SP.J.1087.2005.01595

Journal of Computer Applications ›› 2005, Vol. 25 ›› Issue (07): 1595-1597.DOI: 10.3724/SP.J.1087.2005.01595

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Risk analysis of information system based on variable precision rough set

XIAO Long¹,DAI Zong-kun1,YANG Wei²

1. Institute of Information Security,Sichuan University; 2. 456 Mail Box of Chengdu

Received:2005-01-28 Revised:2005-04-07 Online:2005-07-01 Published:2005-07-01

基于VPRS的信息系统风险分析

肖龙¹，戴宗坤¹，杨炜²

1.四川大学信息安全研究所，四川成都 610064; 2.成都市456信箱，四川成都 610061

作者简介:肖龙（1977-），男，重庆人，博士研究生，主要研究方向：信息安全、模式识别、人工智能；戴宗坤（1945-），男，重庆人，研究员，主要研究方向：开放系统互连的安全体系和安全工程方法；杨炜（1972-），男，四川彭州人，工程师，主要研究方向：信息安全.
基金资助:
国家863计划项目（2001AA142171）

Abstract

Abstract:

The risk analysis method based on variable precision rough set (VPRS) was proposed. It used reduct functions and filtered risk regulations and combined quantitative measurement with qualitative analysis. So it not only reduced greatly the data, but also increased the validity of risk regulations. At last, we analyzed the data in the reference [4] and mined the risk regulations effectively among them by using this method.

Key words: information system, risk evaluation, rough set, VPRS(Variable Precision Rough Set)

摘要：

提出了基于可变精度粗糙集（VPRS）的风险分析方法。利用VPRS模型中的β约简有效地克服了传统粗糙集处理噪声数据的不足；同时提出了通过定性和定量相结合的方法过滤风险规则，不但约简了风险规则的数量，而且提高了风险规则的有效性。最后，运用VPRS模型对文献[4]中的风险评估数据进行分析，有效地挖掘出了隐含在其中的风险规则。

关键词: 信息系统, 风险评估, 粗糙集, VPRS

CLC Number:

TP309.2

XIAO Long,DAI Zong-kun,YANG Wei. Risk analysis of information system based on variable precision rough set[J]. Journal of Computer Applications, 2005, 25(07): 1595-1597.

肖龙，戴宗坤，杨炜. 基于VPRS的信息系统风险分析[J]. 计算机应用, 2005, 25(07): 1595-1597.

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Risk analysis of information system based on variable precision rough set

基于VPRS的信息系统风险分析

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