摘要： 范例推理的关键步骤在于相似范例的检索，而范例库中的特征项权重起着重要的作用。文章着重讨论了应用于范例库上获取特征项权重的数据挖掘算法，并提出用遗传算法发现范例库上特征项权重的过程与算法，然后进行了实验与讨论。

关键词: 基于范例的推理, 范例库, 数据挖掘, 权重, 遗传算法

Abstract: In case-based system,the retrieval of similar cases is the key step of intelligent system,and the attribute weighting of a case base takes important effect.This paper puts forward one weighting method by using genetic algorithm.The experimental result shows that this method has good accuracy and better performance than other methods.

中图分类号: 

• TP18