改进的基于正区域的知识约简算法及其应用研究  

Improved Knowledge Reduction Algorithm Based on Positive Region and its Application

作　　者：李俊丽[1] 秦振吉[1] 

机构地区：[1]晋中学院信息技术与工程学院,晋中030600

出　　处：《计算机与数字工程》2014年第7期1153-1156,共4页Computer & Digital Engineering

摘　　要：给出了基于正区域的决策表知识约简的定义和算法,针对此算法的不足,提出了算法改进以完成包含大量条件属性的约简。通过其在电器销售系统中的应用,去除冗余或不相关的条件属性,大大减少了要处理的数据量,简化了决策信息系统。The definition and algorithm of decision table and knowledge reduction based on positive region are given . For the shortcomings of this algorithm ,an improved algorithm is presented to accomplish reduction consisted of a considera-ble number of attributes .Through its application of the system of electrical appliances selling ,redundant or relevant attrib-utes are removed ,dealing data is largely reduced and the system of decision information is simplified .

关 键 词：粗糙集 决策表 知识约简 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]