CAJ | 학술논문

以一族等价关系所构成的多粒度空间为研究对象，在乐观和悲观多粒度粗糙集模型的基础上，给出两种多粒度粗糙隶属度函数以重构乐观和悲观多粒度粗糙集。从多粒度空间中一族等价关系的交集和并集出发，定义多粒度空间上的两种知识粒度，并将这两种知识粒度作为启发式信息，分别构建启发式算法以删除多粒度空间中的冗余粒空间。
이일족등개관계소구성적다립도공간위연구대상，재악관화비관다립도조조집모형적기출상，급출량충다립도조조대속도함수이중구악관화비관다립도조조집。종다립도공간중일족등개관계적교집화병집출발，정의다립도공간상적량충지식립도，병장저량충지식립도작위계발식신식，분별구건계발식산법이산제다립도공간중적용여립공간。
In this paper, the muhigranulation space, which is derived from a family of the equivalence relations, is deeply explored. Based on the optimistic and pessimistic muhigranulation rough sets, two different multigranulation rough membership functions are proposed to re - construct optimistic and pessimistic multigran- ulation rough sets. Moreover, from the viewpoints of intersection and union of equivalence relations, two differ- ent definitions of knowledge granulations are proposed in multigranulation space. Such two knowledge granula- tions are regarded as the heuristic information to construct algorithms, from which the redundant granulation spaces can be deleted in multigranulation space.