基于截形式背景的属性约简分析  

Analysis of the Attribute Reduction Based on the Cut-off Form of the Background

作　　者：舒畅[1] 

机构地区：[1]成都理工大学信息管理学院,四川成都610059

出　　处：《模糊系统与数学》2010年第6期141-147,共7页Fuzzy Systems and Mathematics

基　　金：国家自然科学基金资助项目(10671030)

摘　　要：在模糊概念格中讨论了基于截形式背景的属性约简,其中着重分析了在精度的偏序关系下属性约简的包含关系,并证明了此说法的正确性,进而还举例说明了其正确性;在此基础之上,本文还给出了在用不同精度把模糊概念格转换了经典概念格时造成的误差,并给出其算法,最后举例说明其有效性。The concept lattice of fuzzy attribute reduction is not very perfect,but at this stage there is a cut-off based on the background of the form attribute reduction.Its basic idea is to use the accuracy of this tool,the fuzzy concept lattice is converted to the classical concept lattice,and then use the classical concept lattice on which the original method,the reduction of its attributes.However,in the form of cut-off based on the background to convert to the classic form of the background,we found that the same fuzzy formal context with different accuracy of the results of reduction may be different.Well,to some extent,this article discusses the relationship between the accuracy of the partial order,the fuzzy concept lattice of the attribute reduction of the inclusion relation,and prove the correctness of this statement,which also illustrates the accuracy.On this basis,the paper also gives a different accuracy in the fuzzy concept lattice conversion of the classic concept of the error caused by grid, and gives the algorithm,the last examples of its effectiveness.

关 键 词：模糊概念格 截形式背景 属性约简 精度 

分 类 号：O159[理学—数学]