基于图论的粗糙集模型研究及应用  

Research of Rough Set and application based on Graphics

作　　者：李海霞[1] 林元模[1] 

机构地区：[1]莆田学院信息工程学院,福建莆田351100

出　　处：《安阳师范学院学报》2013年第5期41-43,共3页Journal of Anyang Normal University

摘　　要：从图论的角度,研究粗糙集模型及决策表相对正域和决策规则。方法:将关系和集合用图表示,通过求图的子图以及两图是否相交来求解集合上、下近似;通过求带权图的子图求取决策表相对正域,以及决策规则。基于图论的粗糙集模型更形象更直观。本文提供了一个研究粗糙集模型的新方法。Purpose - From the view of graphics,this paper studies Rough set and decision table relative posi-tive region and decision rule. Methodology/approach - it explores the relation and set with graphics, through seeking the subgraphics of graphics and whether two graphics is intersection to resolve set lower approximation, upper approximation; by seeking the subgraphics of weighted graphics, to solve decision table relative positive region, and the decision nile. Result - Rough Set based on Graphics is much more visual and intuitionistic. Conclusion - this paper provides a new method of studying Rough set and decision table.

关 键 词：图 子图 带权图 粗糙集近似 相对正域 决策规则 

分 类 号：O144[理学—数学]