计算机工程与应用2012，Vol.48Issue(14)：148-151,4.DOI:10.3778/j.issn.1002-8331.2012.14.031
双向迁移概率PS-粗糙集模型及应用
Model and application of bidirectional transfer probabilistic PS-rough sets
摘要
Abstract
On the basis of rough sets, by considering both the dynamic characteristics of the set X and the statistics information in the knowledge database, this paper constructs bidirectional transfer probabilistic PS-rough sets model, discusses properties and theorems of PS-rough sets, proves that PS-rough sets is the further extension of S-rough sets and Z. Pawlak rough sets, S-rough sets and Z. Pawlak rough sets are the special cases of PS-rough sets. Comparing with S-rough sets, the approximation quality of the dynamic set X* in PS-rough sets is relatively increased and then the decision accuracy is improved. The efficiency of PS-rough sets is shown by an example.关键词
S-粗糙集/双向迁移概率PS-粗糙集/概率近似空间Key words
S-rough sets/ bidirectional transfer probabilistic PS-rough sets/ probabilistic approximation space分类
信息技术与安全科学引用本文复制引用
赵艳君,张春英..双向迁移概率PS-粗糙集模型及应用[J].计算机工程与应用,2012,48(14):148-151,4.基金项目
河北理工大学科学研究基金项目(No.z201005). （No.z201005）
