计算机应用研究2016，Vol.33Issue(11)：3223-3227,5.DOI:10.3969/j.issn.1001--3695.2016.11.006
变精度复合粗糙集模型及其应用
Variable precision composite rough sets model and its applications
摘要
Abstract
In view of the problem of the noise data in the composite information system,and the strict requirements of approxi-mate boundary in composite rough sets,this paper extended the composite rough sets,proposed variable precision composite rough sets(VPCRS).It introduced the threshold parameterβ(0.5 <β≤1 ),and defined β-upper approximation,β-lower ap-proximation,β-positive region,β-negative region,β-boundary region,β-accuracy and β-roughness and other concepts based on matrix of variable precision composite rough sets.Meanwhile,it studied the relevant properties of the variable precision composite rough sets.Finally,an example illustrated the application of the model in information processing.Further it shows that the model has a certain fault tolerance and enhances the anti-jamming capability,which enlarges the range of application.关键词
复合粗糙集/变精度粗糙集/变精度复合粗糙集/近似算子Key words
composite rough sets/variable precision rough sets/variable precision composite rough sets(VPCRS)/approxi-mate operator分类
信息技术与安全科学引用本文复制引用
赵静,蒋芸,李志磊,胡学伟..变精度复合粗糙集模型及其应用[J].计算机应用研究,2016,33(11):3223-3227,5.基金项目
国家自然科学基金资助项目（61163036）；甘肃省高校研究生导师科研基金资助项目（1201-16）；2012年度甘肃省高校基本科研业务费专项资金项目；西北师范大学三期“知识与科技创新工程”科研骨干培育基金资助项目 （）
