在不完备信息系统中的一种粗集扩充模型  

A Extension of Rough Set Model Based on Incomplete Information System

作　　者：华伟[1] 

机构地区：[1]江苏科技大学电子信息学院,镇江212003

出　　处：《微计算机信息》2006年第11X期250-252,共3页Control & Automation

摘　　要：对已有的基于不完备信息系统的粗集拓展模型进行分析比较,进而提出一种改进的限制容差关系模型。主要思想是考虑到人的主观要求,在容差类的划分中加入一个插值,再利用这些类得到上下近似集,最后通过实例说明该模型是符合客观实际的。This paper makes a deep research on the rough set model base on incomplete information system, several extended rough set models are analyzed and another model is presented, In this model ,man can control the partition of universe in some way by thresholds, the aim of tolerant relation based on connection degree is to ascertain classes by which the lower approximation set and upper approximation set of a set in universe are confirmed, and verify the validity of the model by example.

关 键 词：不完备信息系统 粗集 容差关系 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程]