| 宋 东， 刘 飞， 吴信永 |
（西北工业大学 航空学院，陕西 西安 710072） |
 摘要：CBR（case-based reasoning）是根据历史经验解决当前问题的一种策略，而案例修改是CBR的重要环节和难点。在讨论了CBR的基本推理原理和方法的基础上，提出并研究了基于特征差异的案例自修改方法，并以飞机故障诊断专家系统为例介绍了案例修改的过程。 |
| 关键词：CBR，案例修改，故障诊断，专家系统 |
| 中图分类号：TP182 文献标识码：A 文章编号：1000-8829(2008)05-0081-03 |
| Research and Application on Case Self-Revision Approach of Fault Diagnosis System Based on CBR |
| SONG Dong， LIU Fei， WU Xin-yong |
| (School of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, China) |
| Abstract：CBR（case-based reasoning）is a strategy using to solve the current problem in terms of historical experience.Case revision is a crucial and difficult step in CBR.The basic principle and method of CBR are discussed and case revision approach based on difference of character is presented and researched.Then the process of case revision is introduced through an example of fault diagnosis expert system of aircraft. |
| Key words：CBR; case revision; fault diagnosis; expert system |
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