改进的基于正区域的知识约简算法及其应用研究

摘要

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 .%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。