摘要
基于最大相似类的变精度粗糙集模型.此模型把变精度粗糙集的基础由等价关系拓展到条件更弱的相似关系,更好地利用数据间的相关信息,扩大了粗糙集理论的应用范围.讨论了相似变精度粗糙集的性质与属性约简,举例说明了相似的变精度粗糙集在大学生体质检测数据约简中的应用.
In this paper, variable precision rough set model based on the most similar type is researched. In this model, the basis of the variable precision rough set is expanded to conditions similar to the relationship between the weak form the equivalence relation, makes better use of data between the relevant information, the expansion the rough set theory applications. The nature and attribute reduction about the similar variable pre- cision rough set is discussed, examples of similar variable precision rough set in data reduction of the physical examination in the college.
出处
《哈尔滨师范大学自然科学学报》
CAS
2009年第4期18-21,共4页
Natural Science Journal of Harbin Normal University
关键词
相似关系
Pawlak粗糙集
相似变精度粗糙集
属性约简
Similarity relationship
Pawlak rough set
Similar variable precision rough set
attribute reduction
