南京信息工程大学学报
南京信息工程大學學報
남경신식공정대학학보
JOURNAL OF NANJING UNIVERSITY OF INFORMATION SCIENCE & TECHNOLOGY
2014年
1期
58-62
,共5页
指标体系%决策表%知识约简%特征向量法%无线网络
指標體繫%決策錶%知識約簡%特徵嚮量法%無線網絡
지표체계%결책표%지식약간%특정향량법%무선망락
targets system%decision table%knowledge reduction%arithmetic of character vector%wireless network
针对无线网络脆弱性评价指标体系中影响因素众多、层次结构复杂且指标间存在相关性的问题,提出了一种基于知识约简算法的脆弱性指标体系构建方法。首先,初步建立无线网络脆弱性评价的指标体系,在此基础上构造脆弱性评价决策表;其次,运用知识约简算法对决策表进行简化,其中非核指标的重要性排序采用特征向量法进行确定,该方法以保证评价结果的准确性为前提,较AHP权重判断法更具客观性;最后,将该方法和AHP 权重判断法进行了分析比较,说明了其有效性。
針對無線網絡脆弱性評價指標體繫中影響因素衆多、層次結構複雜且指標間存在相關性的問題,提齣瞭一種基于知識約簡算法的脆弱性指標體繫構建方法。首先,初步建立無線網絡脆弱性評價的指標體繫,在此基礎上構造脆弱性評價決策錶;其次,運用知識約簡算法對決策錶進行簡化,其中非覈指標的重要性排序採用特徵嚮量法進行確定,該方法以保證評價結果的準確性為前提,較AHP權重判斷法更具客觀性;最後,將該方法和AHP 權重判斷法進行瞭分析比較,說明瞭其有效性。
침대무선망락취약성평개지표체계중영향인소음다、층차결구복잡차지표간존재상관성적문제,제출료일충기우지식약간산법적취약성지표체계구건방법。수선,초보건립무선망락취약성평개적지표체계,재차기출상구조취약성평개결책표;기차,운용지식약간산법대결책표진행간화,기중비핵지표적중요성배서채용특정향량법진행학정,해방법이보증평개결과적준학성위전제,교AHP권중판단법경구객관성;최후,장해방법화AHP 권중판단법진행료분석비교,설명료기유효성。
Aspects such as multiple influencing factors,complicated hierarchical structure,and relation between in-dicators perplexed the vulnerability evaluation target system for wireless network. This paper proposes a method to construct target system of vulnerability evaluation based on knowledge reduction. Firstly,a primary target system of vulnerability evaluation for wireless network is established, hence the decision table of vulnerability evaluation is constructed.Secondly,the knowledge reduction is employed to simplify the decision table,and arithmetic of character vector is used to sort the significance of non-core targets.Premised on high accuracy of evaluation result,this pro-posed method is more objective than AHP weight judgment method.Finally,this knowledge reduction based method is comparatively analyzed with AHP weight judgment method to validate its feasibility.