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 .
出处
《计算机与数字工程》
2014年第7期1153-1156,共4页
Computer & Digital Engineering
关键词
粗糙集
决策表
知识约简
rough set
decision table
knowledge reduction
