基于PCA和CBR的医学诊断专家系统

摘要

将主成份分析与案例推理相结合,构造一个医学诊断专家系统。对RS的数字化转换方法进行改进,提出了基于权重的WRS数值转化方法;并对案例检索中常用的最近邻策略进行了改进,提出了基于最相似匹配原理的最近邻比值检索方法。%A medical diagnosis expert system is constructed by combining the principal components analysis and the case-based reasoning.The proposed method of WRS-PCA is the improvement of RS.And the nearest neighbor ratio search method is proposed based on the valu